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U N IT E D S T A T E S D E P A R T M E N T OF L A B O R
Frances Perkins, Secretary
BUREAU OF LABOR STATISTICS
Isador Lubin, C om m issioner (on leave)
A . F. Hinrichs, A c tin g C om m issioner

+

W artim e Development
o f the A ircraft Industry

Prepared by
D IV ISIO N O F C O N S T R U C T IO N A N D
PUBLIC E M P L O Y M E N T
H E R M A N B . B Y E R , C hief

B ulletin

7s[o.

800

For sale by the Superintendent o f Documents, U. S. Government Printing Office
Washington 25, D. C. - Price 10 cents







Contents
Page




(n i)

1
M tf* fcO

Summary_______________________________________________
Description of the industry__________
Employment trends_________________
Trends in employment of women
Employment distribution:
Labor-market areas__________________________________________________
Geographic distribution______________________________________________
Labor turnover___________________________________________________________
Absenteeism of workers___________________________________________________
Hours and earnings_______________________________________________________
Production trends________________________________________________________

9
11
12
18
19
21

Letter of Transmittal

U nited States D epartment op L abor ,
B ureau op L abor Statistics,
Washington, D . C., November 2 0 , 1944 •

The Secretary op L abor :
I have the honor to transmit herewith a report of the wartime development of
the aircraft industry. This report was prepared by Leonard G. Levenson in the
Bureau’s Division of Construction and Public Employment.
A. F. H inrichs,
Acting Commissioner.

Hon. F rances P erkins ,
Secretary of Labor.




(IV)

B ulletin

7\[o.

800 o f the

U n ited States B ureau o f Labor Statistics
[Reprinted from the M onthly L ab or R e v ie w , November 1944]

Wartime Development of the Aircraft Industry
Summary

Total employment in the aircraft industry did not exceed 100,000
workers in January 1940; but in the latter part of 1943, when the peak
was attained, about 2,100,000 were at work. Since then employment
has been steadily declining and in August 1944 was slightly more than
1,800,000.
Increasing productivity has been of sufficient magnitude to permit
schedule attainment despite this 14-percent decline in employment.
The average airframe weight accepted per employee increased from 21
pounds in January 1941 to 96 pounds in M ay 1944. Along with this,
the number of completed airplanes accepted rose from 1,000 per
month early in 1941 to between 8 and 9 thousand per month thus far
in 1944. Whereas about 4 million pounds (including weight of spare
parts) were accepted monthly in the beginning of 1941, approximately
100 million pounds per month were being accepted in 1944.
Prime contracting airframe, engine, and propeller plants are the
most important subdivisions of the industry, accounting for approxi­
mately two-thirds of total employment. Airframe prime contractors
alone employ from 45 to 50 percent of the total. This group, with
about 59,000 workers in January 1940, reached an employment peak
of 936,000 in November 1943 and declined 18 percent to 769,000 in
August 1944. The number at work in engine plants increased 21
times from 16,000 at the beginning of 1940 to a peak of 340,000 by
February 1944 but decreased 7 percent to 317,000 by August. Pro­
peller employment advanced from only 3,000 in January 1940 to
57,000 by the end of 1943. The August 1944 figure was 53,000 or 6
percent less.
The important role played by women workers in the aircraft pro­
gram is measured by the ultimate employment of almost 500,000
women engaged in the production of airframes, engines, and propellers
as compared with 23,000 in January 1942. Women represented 40
percent of the labor force in airframe plants and approximately 30
percent in engine and propeller plants in August 1944, whereas in
January 1942 they had accounted for only about 5 percent.
Because of the possibility of enemy attack, the coastal location of
aircraft plants was a source of grave concern. In 1940, about 95 per­
cent of total airframe employment was in plants on both coasts, but
by 1943 this was reduced to 61 percent. M ore important, in view of
the threat from Japanese aircraft carriers, was the fact that the pro-




(l)

2

portion on the W est Coast was reduced from 60 to 33 percent. Engine
and propeller plants, formerly concentrated on the East Coast, had
approximately 40 percent of their employment in Ohio and Michigan
by 1943.
Separation rates have been higher in airframe plants than in engine
and propeller plants, but have been consistently lower than the
average for manufacturing as a whole.
Engine and propeller workers reported higher earnings than did
airframe workers, but employees in all three branches of the industry
showed an increase in income.
Description of the Industry

Prior to W orld War II the aircraft industry was a relatively un­
important segment of transportation-equipment manufacturing.
W ithin 4 years it has become one of the Nation’s major industries in
terms of employment and output. This report traces the industry’s
meteoric rise as measured by employment and related factors.
The aircraft industry is composed of eight subdivisions. These are
airframes, gliders, special-purpose aircraft, engines, propellers, sub­
contractors, parts suppliers, and modification centers.
The airframe plants are by far the most important in terms of
both employment and function. Plants so designated assemble the
fuselage, wings, and tail fabricated on their own premises and those of
their subcontractors and, in addition, install the engines, propellers,
instruments, and accessories necessary to complete the airplane for
delivery. The airframe plant, often called the airplane plant, is
truly a plant of final assembly, for it represents that stage at which a
long series of assemblies culminates in the finished product.
Glider and special-purpose aircraft are part of the airplane family.
The glider is simply an unpowered airplane. Special-purpose air­
craft are primarily targets which are small, powered, pilotless air­
planes controlled by radio and used in training aerial gunners. Both
types of craft are simple to build. The quantities needed, however,
have been relatively small in comparison with total requirements.
Production of aircraft engines calls for facilities specializing in the
machining and assembling of an item requiring extremely close
tolerances. This is reflected in the high proportion of skilled workers
employed. However, immediate adoption of mass-production tech­
niques was made possible by the size of the unit, the great numbers
of engines required, and the relative stability of design. The expe­
rience of the automobile industry in this type of production was used
to good advantage. The manufacturing process is completely dif­
ferent from that of airframes, with the result that engine plants
(which are virtually giant machine shops) cannot perform the opera­
tions of airframe plants which are enclosed assembly areas with high
ceilings and wide bays.
The propeller branch of the industry also is highly specialized. Al­
though a propeller may at first sight appear to be simple, it is actually
extremely complicated. A large proportion of skilled workers is re­
quired in its production. The machined parts going into the hub of a
propeller require the closest tolerances. The blades must be per­
fectly balanced. Furthermore, as changes are made, to improve the
effectiveness of propellers in connection with existing engines or im­



3
proved engines, they become more complex and continue to rely on
highly skilled workmanship. Like engine plants, propeller plants are
one-purpose establishments.
The producers discussed thus far are classified as prime contractors.
They enter into a contractual obligation directly with the Govern­
ment to deliver a finished product within a specified time. The ac­
cepted item must meet specifications, but how the job is to be done
remains the responsibility of the prime contractor. The war brought
with it pressure for unprecedented production in the shortest possible
time. The aircraft industry met the challenge by subcontracting
much of the work formerly done within the plant. Naturally, the
ability to maintain the close tolerances of the aircraft industry was
a major criterion in the selection of subcontractors. Many auto­
mobile plants took on the job of making items such as wing sections,
fuselage sections, or tail assemblies, while plants in other industries
did what they could to assist in aircraft production. As the pro­
gram progressed and some of the prime contractors completed their
jobs, they in turn took on subcontract work. It is estimated that a
fifth of total airframe production, a third of engine, and a fourth of
propeller production has been accomplished by subcontractors.
Parts suppliers are relied upon to furnish many of the items that
go into the finished airplane. This branch of the industry is com­
posed of specialists in their respective fields, devoting their attention
to such products as instruments, turbo-superchargers, generators,
and the like. The war naturally resulted in expansion in this seg­
ment of the industry, and new specialists entered the field. In order
to maintain standardization and simplify procurement of items com­
mon to several airplane models, the Government has followed the
policy of contracting for equipment which is then turned over to
manufacturers for installation. Allocation of scarce items is made
in accordance with the relative need for different types of airplanes.
Modification centers are a war innovation. When the airplane
shortage was particularly acute, the latest changes in aeronautical
design were incorporated into completed planes by modification
centers until such changes could be introduced in the production line.
In addition, these plants installed special equipment on com bat
planes, to prepare them for flying conditions in different theaters o f
operation. Improved production techniques and the current supply
of aircraft are now such that in many cases the function of modification
centers can conveniently be taken over by the airframe plants them­
selves.
Coverage.— The basic data for this report were secured from the
Aeronautical M onthly Progress Reports developed by the Army Air
Forces, and from the Bureau’s reports on labor turnover and on
hours and earnings. Arrangements have been made whereby all
prime contractors of airframes, engines, propellers, gliders, specialpurpose aircraft, and modification centers submit detailed data
monthly on these schedules. Prime contractors now account for
about 65 percent of the industry’s total employment. Subcontractors
and parts suppliers are not direct reporters under this program for the
aircraft industry as such, but the data submitted by prime contractors
include the basis for estimating off-site man-hours spent, permitting an
estimate of the level of employment for these branches of the in­
dustry. Within the reporting group, glider, special-purpose, and




4
modification-center employment is relatively unimportant, repre­
senting less than 5 percent of the total. Consequently, in the present
article major emphasis is placed on the prime contracting airframe,
engine, and propeller plants in tracing the industry’s progress
Employment Trends

In January 1940 total employment in the entire aeronautical
industry probably did not exceed 100,000 workers. When peak
employment was attained in the latter part of 1943, about 2,100,000
were at work— 20 times the number 4 years earlier. In August 1944
employment was approximately 1,800,000, or 14 percent below the
peak (table 1).
From not quite 80,000 workers employed in prime contracting
airframe, engine, and propeller plants at the beginning of 1940, the
figure rose to over 1,300,000 by the end of 1943, or to 16 times the
previous figure (table 2). The greater part of the expansion took
place within a 2-year span. This is one of the most striking accom ­
plishments of the war and resulted in the creation, in record time,
o f the world’s most powerful air force.
Airframe plants now employ about two-thirds of the workers in
prime contracting establishments, engine plants a little over a fourth,
and propeller plants only about 6 percent.
T able 1.— Total Em ploym ent in the Aircraft Industry, b y T yp e o f Contractor,
January 1942-A u gu st 1944 1
[In thousands]
1943

1942

Month
Total

January ..................
February................
March.....................
April.......................
M ay................- ___
June........................
July........................
August....................
8flptftmhftr_ _
Ofltnhp.r
_ _
November.... .........
D ecem ber___

618.4
682.8
736.1
792.6
848.2
930.0
1,000.3
1.099.4
1,179.8
1.280.3
1.384.3
1.496.5

Subcon­
Prime tractors
and
contrac­ parts
tors 8
sup­
pliers *
460.4
601.8
538.1
572.6
611.2
664.0
710.3
772.4
819.8
879.3
939.3
1,003.5

158.0
181.0
197.0
220.0
237.0
266.0
290.0
327.0
360.0
401.0
445.0
493.0

Total

1.609.3
1,681.2
1.739.4
1.789.9
1.836.6
1.895.3
1.941.5
1.980.7
2.032.3
2.073.9
2.101.6
2,079.1

1944

Subcon­
Prime tractors
and
contrac­ parts
tors 8
sup­
pliers8
1.064.3
1, 111. 2
1.148.4
1.180.9
1,211.6
1.252.3
1.281.5
1,304.7
1.338.3
1.364.9
1.382.6
1,369.1

545.0
570.0
591.0
609.0
625.0
643.0
660.0
676.0
694.0
709.0
719.0
710.0

Total

Subcon­
Prime tractors
and
contrac­ parts
tors8
sup­
pliers 3

2.079.9
2,062.7
2,018.1
1.986.9
1.956.5
1.909.6
1,883.4
1,811.0

1.368.9
1,356.7
1,327.1
1.305.9
1.285.5
1.254.6
1,235.4
1,186.0

711.0
706.0
691.0
681.0
671.0
655.0
648.0
625.0

i AH data are as of end of month.
* Includes actual employment of airframe, engine, propeller, glider, and special-purpose aircraft plants,
and modification centers.
* Estimated; includes employment in many plants classified by the Bureau's Employment Statistics
Division in other industries, such as electrical equipment and automobiles; all establishments having sub­
contracts are included, even when aircraft and parts do not constitute their primary activity.

Airframe prime contractors had an estimated 59,000 persons at
work in 21 facilities1in January 1940. During the course of the year,
employment more than doubled, reaching 134,000. The monthly
net increase averaged 7,000 workers. The net increase in 1941 was
180,000, an average of 15,000 per month, and when Pearl Harbor was
i The term facility as used in this report represents a single plant fabricating a complete airframe, engine,
or propeller, or different plants working under the same corporate management and together as a unit
fabricating the complete airframe, engine, or propeller.




5
attacked, employment had exceeded 300,000. Immediately after­
ward, expansion was greatly accelerated largely because of the comple­
tion of new plants. The first half of 1942 witnessed an average month­
ly increase of 26,000 workers, but the average monthly gain for the
last half of 1942 jumped to 43,000. The greatest increase in any one
month occurred in December 1942, when 49,500 workers were added.
N ot only were existing plants expanded, but new plants were put into
operation. There were 54 facilities at that time as compared with 21
in 1940. Thus, by December 1942, employment stood at 730,000, a
net increase of 417,000 workers over the end of 1941,
T able 2.— Total Em ploym ent in Prim e Contracting Airfram e, Engine, and Propeller
Plants, January 1940-A u gu st 1944 1
Total employment in—

Total employment in—
Year and
month

Engine
All plants Airframe
plants
plants

Pro­
peller
plants

mo

Year and
month

Engine
All plants Airframe
plants
plants

Pro­
peller
plants

1949—Con.

January 2..
February..
March.......
April..........
M ay....... .
June..........
July______
August___
September.
October___
November.
December..

77,600
82,416
87,742
95,182
104,066
114,698
126,214
135.293
146,054
156,353
167.294
178,489

59,000
62,125
65,518
71,116
77,246
85,744
93,799
101,030
108,710
117,637
125,501
133,654

33,290
36,129
38,848

2,500
2,858
3,118
3,395
3,644
4*129
4,373
4,525
4,952
5,426
5,664
5,987

194,135
204,962
216,156
231,102
246,006
269,059
293,661
319,125
341,450
371,247
391,453
423,027

146,197
153,554
161,231
172,240
183,134
200,260
218,925
238,549
255,796
276,810
291,574
313,297

41,329
44,143
47,205
50,461
53,960
59,381
64,813
70,213
74,710
82,907
87,544
96,746

6,609
7,265
7,720
8,401
8,912
9,418
9,923
10,363
10,944
11,530
12,335
12,984

460,356
501,753
538,060
572,616

341,603
368,669
390,278
412,927

104,156
116,804
129,387
138,974

14,597
16,280
18,395
20,715

16,000
17,433
19,106
20,671
23,176
24,825
28,042
29,738

1941
January___
February..
March.......
April..........
M ay..........
June..........
July...........
August___
September.
October___
November.
December..

1949
January___
February..
M arch.___
A p ril....__

M ay.........
June.........
July_____
August___
September
October. _.
November
December.

611,272
653,033
695.359
753,425
796,954
852,862
910,932
970.359

439,188
470,765
505,274
553,240
589,503
635,056
680,535
729,995

148,738
156,964
162,893
170,680
176,597
185,387
195,869
204,177

January... 1,027,914
February.. 1,072,573
March___ 1,106,664
April......... 1,139,018
M ay......... 1,166,555
June.........
1,203,479
July
1,233,385
August___ 1,257,427
September 1,290,181
October__ 1,311,765
November 31,326,345
December. 31,310,799

770,471
800,055
819,848
839,349
856,244
881,139
900,584
907,098
924,872
931,109
936,466
922,859

219,084
40,332
232,186
244,434
42,382
255,547
44,122
263,684
46,627
273,798
48,542
282,944
49,857
297,329
53,000
310,573
54,736
325,916
54,740
336,128 *53,751
*54,637

913,091
898,865
875,423
856,325
840,351
811,623
796,976
769,282

337,698 * 57,164
339,833
57,093
335,614
56,620
334,458
56,399
332,149
55,224
331,667
54,684
329,620
54,270
53,291
317,346

23,346
25,304
27,192
29,505
30,854
32,419
34,528
36,187

1943

1944
January.... 31,307,953
February.. 1,295,791
March___ 1,267,657
April........ . 1,247,182
M ay......... 1,227,724
June......... . 1,197,974
July.......... . 1,180,866
August___ 1,139,919

1 All data are as of end of month.
* Estimated.
* A change in propeller coverage occurred in December 1943 and January 1944, adding 1,500 workers in
December and 2,500 more in January. If November and December data were placed on a comparable
basis with those for January and subsequent months, propeller employment would be 57,400 Mid 57,100,
respectively, and the corresponding figures for total employment would be 1,330,000 and 1,313,300. Revised
figures are not being published for months prior to November or for November and December since the per­
cent of difference would be insignificant in most months, and the revised series would differ from the official
series used by the Army Air Forces and the Aircraft Resources Control Office.

Employment continued upward in prime contracting airframe plants
during the first 11 months of 1943, though at a slower pace. The
monthly average increase for the period was down to 19,000, reflecting
the general tightening of the labor market and the completion of the
program of staffing needed at the levels of efficiency that had been at­
tained. In November 1943 peak employment of 936,000 was reached,
or more than 15 times the 59,000 so employed at the beginning of 1940.
620031°— 44-------2




6
Since November the employment level has been receding steadily.
The average monthly decrease for the 9-month period— November
1943 to August 1944— was close to 19,000 workers. By the end of
August, airframe employment had dropped to 769,000, a decline of
167.000 or 18 percent from the peak. It is significant, however, that
output has continued to increase despite the employment decline
as a result of increasing productivity.2
The need for multiple-engine airplanes resulted in extremely high
engine requirements. The automobile industry provided valuable
assistance on this problem and consequently is well represented in the
engine phase of aeronautical production. Pratt & Whitney engines
are being manufactured by Buick, Chevrolet, Ford, and Nash;
Wright engines by Chrysler and Studebaker; and Rolls-Royce Merlin
engines by Packard. B y the time the engine industry reached peak
employment, 50 percent of the workers employed in engine manufac­
ture were under automobile management.
A t the beginning of 1940 there were only about 16,000 at work in
engine plants and nearly 90 percent were employed by two firms—•
Pratt & Whitney and the Wright Aeronautical Corporation. The
engine branch of the industry more than doubled its employment
during 1940 as a result of the impetus given by the European war,
ending the year with almost 39,000 workers. By the end of 1941
employment was in the vicinity of 97,000, nearly 2 % times the num­
ber at the end of 1940. Engine plants were able to recruit and train
employees in sufficient numbers to add an average of 9,000 per month
in 1942, and an average of 11,000 per month in 1943. This continued
expansion raised employment to 204,000 in December 1942 and to
333.000 in December 1943. The peak was not reached until Feb­
ruary 1944 when 340,000 were at work in 19 facilities. Since then
employment has declined each month, although horsepower produced
has remained about the same. The number at work dropped to
317.000 by the end of August 1944— a decline from peak of 22,500 or
7 percent.
The rapid expansion experienced by the propeller branch of the
industry paralleled that of engines. There were fewer than 3,000
workers engaged on propeller production in 1940, representing the
total employment of the only two producers in the field, Hamilton
Standard and Curtiss Propeller Division. These two doubled their
employment by the end of the year. Three more facilities entered
the industry in the following year, so that employment more than
doubled, reaching 13,000 by December 1941. B y the end of 1942
there were 9 propeller facilities in operation and employment had
made an almost threefold expansion over 1941. The peak of 57,000
was attained toward the end of 1943.3 However, by August 1944
the figure dropped to 53,000, or 6 percent, following closely the
decrease in engine employment.
The effective use of the glider as a tactical weapon was disclosed
in the German invasion of Crete in M ay 1941. In June 1942 there
were about 2,000 persons at work in this phase of the aircraft pro­
gram. Thereafter expansion was very rapid, as evidenced by the
2 See section on production trends, p. 21.
8 A change in propeller coverage occurred in December 1943 and January 1944, adding 1,500 workers in
December and 2,500 more in January. If November and December data were placed on a comparable
basis with those for January and subsequent months, propeller employment would be 57,400 and 57,100,
respectively.




7
December 1942 employment figure of 12,000. The peak came toward
the end of 1943 when 16,000 were employed, but the figure was again
down to 12,000 by June 1944 and remained without change thereafter.
The modification centers came into existence in the middle of |1942
and by the end of the year employed 20,000 workers. This figure
more than doubled during 1943, and during the first 6 months of 1944
employment rose to about 43,000. It remained fairly constant up
to July but declined to 33,000 by the end of August.
Koughly, 1 worker is employed by subcontractors and parts suppliers
for every 2 workers engaged in plants of final assembly. Toward the
end of 1943 and the beginning of 1944, subcontracting plants em­
ployed about 700,000 workers (table 1). It is reasonable to expect
an employment decline in these facilities commensurate with that of
final assembly plants, since they are so closely affiliated. Accord­
ingly, employment among subcontractors is estimated to have been
about 650,000 by mid-1944 and 625,000 in August.
TREN D S IN E M PLOYM EN T OF W OM EN

Competition of other war industries and the armed services for
manpower made it plain that production schedules could be met in
the aircraft industry only by extensive employment of women
workers. There was at first reluctance to hire women for jobs cus­
tomarily filled by men, but by 1942 the industry had recognized the
need for making the adjustments necessary for the mass hiring and
utilization of this new and inexperienced labor force. The signifi­
cant role eventually played by women in aircraft production may be
measured by the fact that whereas these plants had practically no
women workers before the war, toward the end of 1943 prime con­
tracting airframe, engine, and propeller plants employed almost
500,000— 37 percent of the entire work force (table 3).
The airframe branch of the industry had numbers o f jobs that
could be broken down and thus performed, after only nominal training,
by inexperienced women workers. A t the beginning of 1942, the
18,700 women employed in prime contracting airframe plants con­
stituted only 5.5 percent of total employment. Within that year
alone, female employment showed a more than twelvefold increase,
and finally in December comprised exactly one-third of the entire
labor force. Although expansion did not continue at this rapid
pace, some increase occurred in each succeeding month until in
November 1943, when the peak female employment of 370,300 was
attained, women represented practically two-fifths of the work force.
Thereafter the number of women workers declined, along with the
drop in total employment, but their proportion of the total remained
about the same. It is beyond the scope of this report to examine the
volume of female employment in individual airframe plants. It is,
nevertheless, interesting to note that at peak employment, three m ajor
plants had more women than men on their pay rolls.
The total number o f employees required by engine plants was a
great deal smaller than that needed by airframes. This branch of the
industry, therefore, delayed large-scale hiring of women. Early in
1942 there was a female work force of nearly 4 percent of the total
employment, which expanded to 17 percent by the end of the year as
compared with the 33 percent for airframes. Nevertheless, this




8
represented more than a sevenfold increase, from 3,900 in January
to 34,100 by December. The engine plants apparently felt their
manpower squeeze in 1943, for by November, when peak female
employment was attained, they had 103,100 women workers who
made up 31 percent of the labor force. There has been some decrease
since then, especially between July and August 1944, but the number
has remained at about 100,000 and the proportion at about 30 percent.
T able 3.— Total Fem ale Em ploym ent in Prim e Contracting Airfram e, Engine, and
Propeller Plants , January 1942-A u gu st 1944 1
Number of women in—
Year and month

1M

January..............
February............
March................
April...................
M ay....................
June..................
July....................
August................
September.........
October..............
November..........
December....... .

ms

January..............
February............
March................
April...................
May___________
June....................
July....................
August................
September.........
October.............
November........ .
December...........

19U

January..............
February............
March................
April...................
M ay...................
June....................
July....................
August................

All
plants

Airframe
plants

23,137
30,218
38,455
48,009
60,350
77,135
95,482
119,967
153,301
196,665
237,002
280,497

18,656
24,226
30,448
38,442
48,218
63,307
79,346
100,966
131,351
168,993
202,542
240,595

321,788
351,752
370,635
387,092

274,248
295,743
309,129
319,329

402,385

421,548
435,468
449,938
468,169
479,923
>486,073
3 472,519
3466,292
461,074
454,412
448,066
445,725
439,603
435,608
419,216

328,740

340,288
347,494
353,656
363,952
367,701
370,262
358,823
351,509
346,028
339,296
333,316
319,055
307,699

Percent of total employment

All
Engine
Propel
plants ler plants plants

3,920
5,352
7,040
8,225
10,348
13,565
15,913
18,480
23,517
29,394
34,090

561
640
967
1,342
1,784
2,142
2,571
3,088
3,470
4,155
5,066
5,812

41,247
47,889
52,779
58,110
62,873
69,730
75,970
83,694
91,353
99,199
103,112
100,657

6,293
8,120
8,727
9,653
10,772
11,530
12,004
12,588
12,864
13,023
3 12,699
>13,039

31.3
32.8
33.5
33.9

100,743
100,732
100,450
99,704
99,434
99,929
101,217
96,417

>14,040
14,314
14,666
15,046
14,996
15,312
15,336
16,100

11,686

Air­
frame
plants

5.0

5.5

7.1
8.4
9.9
11.8
13.7
15.9
19.2
23.1
26.0
28.9

7.8
9.3

6.0

6.6

11.0

13.4
15.7
18.2
22.3
26.6
29.8
33.0

Pro­
Engine peller
plants plants

3.8
4.6
5.4
5.9
7.0
7.4
8.3
9.3
10.5
12.7
15.0
16.7

3.8
3.9
5.3
6.5
7.6
8.5
9.5
10.5
11.2
12.8
14.7
18.1

18.8
20.5
21.6
22.7

16.4
20.1
20.5
21.9

35.0
35.2
35.7
36.2
36.5
36.7
36.0

35.6
37.0
37.7
38.0
38.4
38.6
38.6
39.0
39.3
39.5
39.5
38.9

25.4
26.8
28.1
29.4
30.4
30.7
30.2

24.1
24.2
23.5
23.8
23.6
23.9

35.7
35.6
35.8
35.9
36.3
36.7
36.9
36.8

38.5
38.5
38.8
38.9
39.4
40.0
40.0
40.0

29.8
29.6
29.9
29.8
29.9
30.1
30.7
30.4

24.6
25.1
25.9
26.7
27.2
28.0
28.3
28.3

34.5

23.8

23.1
23.7

i All data are as of end of month. Data are not available prior to 1942.
* A change in propeller coverage occurred in December 1943 and January 1944, adding 450 women workers
in December and 450 more in January. If November and December data were placed on a comparable ba­
sis with those for January and subsequent months, employment of women in propeller plants would be
13,600 and 13,500, respectively, and the corresponding figures for total female employment would be 486.900
and 473,000. Revised figures are not being published for months prior to November or for November and
December, since the percent of difference would be insignificant in most months, and the revised series
would differ from the official series used by the Army Air Forces and the Aircraft Resources Control Office,

Total labor requirements in propeller plants were, considerably
lower even than for engine plants, and many jobs were not adaptable
to women workers. In January 1942 there were fewer than 600
women propeller workers— nearly 4 percent o f total employment. By
the end o f the year 5,800 women were at work. As these represented
16 percent of the total, this branch of the industry kept pace with
the engine branch which ended 1942 with a woman Work force of 17
percent. Addition o f female workers in propeller plants continued
steadily throughout 1943. B y the end of that year the approximately
13,000 employed were nearly a fourth o f the labor force. Female



9
employment in propeller plants did not reach peak until July 1944,
when 15,300 workers, or 28 percent of total employment, were women.
This was not quite the proportion (31 percent) attained in engine
plants.
Employment Distribution
L A B O R -M A R K E T A R E A S

An indication of the recruitment task which confronted aircraft
management and assisting governmental agencies may be gauged by
an examination of the industry's employment, as shown by W ar Man­
power Commission labor-market-area classifications.4 During each
month of 1943 and of 1944 through August, more than half of the
total workers in prime contracting airframe, engine, and propeller
plants were in Group I areas, i. e., areas of existing labor shortage
(table 4). If plants in areas of labor stringency are included (Group
II), about 85 percent of total employment is accounted for during
1943 and approximately 80 percent through August 1944. Airframe
plants throughout the period had far more employment in Group I
areas than did engine and propeller plants. Propeller plants had
least employment in areas of labor shortage. The proportion of both
airframe and propeller Group I employment decreased during the
period January 1943-August 1944, while engine employment tended
to increase. The recruitment problem should, of course, be considered
on a case basis, for conditions vary from locality to locality and in
many instances the plants themselves, because of their size, created the
labor-market conditions that existed. Nevertheless, the critical
manpower situation in general is readily apparent from consideration
of these data.
The location of airframe plants was such as to place 70 percent of
employment in areas of existing labor shortage (Group I) in January
1943. In February, the airframe proportion dropped to 66 percent,
and labor-market conditions continued to keep about two-thirds of
total employment in Group I until peak employment was reached in
November 1943. B y December, 60 percent was in Group I, but in
M arch 1944 the ratio declined to 55 percent where it remained through
June. Though the proportion in Group I advanced to 58 percent in
July and August, evidence of improved labor-market conditions was
apparent. Employment in Groups III and IV approximated 14 per­
cent throughout 1943, as compared with 23 percent for the period
April through August 1944.
Engine plants have never had as much Group I employment as
airframe plants, but the volume in this classification increased rather
than decreased as time went on. Roughly, a third of engine employ­
ment was in Group I areas from January through August 1943. For
the remainder of the year, the proportion approximated 45 percent.
Except for January, 47 percent of employment was in areas of labor
shortage dining the first 7 months of 1944. In August the proportion
dropped to 40 percent. About 50 percent of the employment was in
areas of labor stringency (Group II) at the beginning of 1943, but the
ratio declined to nearly half of this by July 1944, rising in the following *
* Group I—areas of current labor shortage; Group n —areas of labor stringency and those anticipating a
labor shortage within 6 months; Group III—areas in which slight labor reserves will remain after 6 months;
and Group IV—areas in which substantial labor reserves will remain after 6 months. Throughout this
discussion the labor-market classifications are current as issued monthly by the War Manpower Commis­
sion. For example, an increase in percentage of employment in Group I areas may be caused either by an
increase in the number of areas classified as Group I or by an increase in actual employment.




10
month, however, to 40 percent. Whereas, during most oi 1943,
approximately 15 percent of total engine employment was in areas
experiencing neither shortage nor stringency, this rose to almost
25 percent during 1944.
T able 4.— Percentage Distribution o f Airfram e, Engine, and Propeller Em ploym ent
by W M C Labor-Area Classification , January 1943-A u gu st 1944 1
1943

Type of plants and W MO
labor-area classification2

Janu­ Febru­ March April
ary
ary

All plants................................ 100.0
Group I............................
61.3
Group II........................... 22.7
Group III.........................
10.3
Group IV .........................
6.7

100.0
57.6
29.0
7.8
5.6

May

June

July

Au­
Sep­ Octo­
gust tember ber

100.0
56.4
30.3
7.8
5.5

100.0
58.6
26.4
8.5
6.5

100.0
57.7
27.0
8.9
6.4

100.0
57.1
27.6
9.0
6.3

100.0
56.9
28.1
9.3
5.7

100.0 100.0
56.0
61.0
29.0
24.5
9.3 • 8.9
5.7
5.6

100.0
58.0
26.2
10.3
5.5

Airframe plants...................... ioa<r 100. (T Too.o
Group I ............................
70.4
65.7
64.6
Group II........................... 16.8
21.8
23.0
Group III.........................
6.6
5.4
5.4
Group IV ..........................
7.2
7.1
7.0

100.0
68.1
17.9
5.7
8.3

100.0
66.7
19.0
6.0
8.3

100.0
66.2
19.6
6.1
8.1

300.0
67.0
19.1
6.6
7.3

100.0
65.8
20.3
6.4
7.5

100.0
68.6
18.2
6.0
7.2

iooTo
64.7
20.0
8.2
7.1

Engine plants......................... 100.0
Group I............................
35.2
Group II........................... 42.9
Group III......................... 20.2
Group IV ..........................
1.7

100.0
35.0
51.0
12.6
1.4

100.0
34.2
51.8
12.5
1.5

100.0
32.7
51.3
34.6
1.4

100.0
33.5
50.2
14.9
1.4

100.0
33.1
50.9
14.6
1.4

100.0
32.8
51.5
14.4
1.3

100.0
34.1
50.6
14.1
1.2

100.0
45.4
39.5
12.9
2.2

100.0
45.1
39.9
12.8
2.2

Propeller plants...................... 100.0
Group I ............................. 27.6
Group II........................... 44.9
Group III.........................
27.6
Group IV ..........................

100.0
26.4
45.7
27.9

100.0
27.5
45.8
26.1
.6

100.0
26.6
46.0
26.7
.7

100.0
26.0
44.5
28.5
1.0

100.0
26.3
43.1
29.2
1.4

100.0
11.4
57.3
29.8
1.5

100.0
10.7
55.5
32.2
1.6

100.0
20.8
45.0
34.2

100.0
20.0
47.7
32.3

1943—Con.
Type of plants and W MO
labor-area classification2

1944

No­
vem­
ber

De­
cem­
ber

Jan­
uary

Feb­
ruary March April

May

June

July

All plants................................ 100.0
Group I............................. 58.0
Group II........................... 26.4
Group III......................... 10.4
Group IV .........................
5.2

100.0
54.5
29.9
10.3
5.3

100.0
51.6
31.2
10.9
6.3

100.0
55.6
25.8
12.0
6.6

100.0
51.3
28.9
13.5
6.3

100.0
51.0
25.9
17.3
5.8

100.0
50.4
26.8
16.9
5.9

100.0
50.7
26.6
17.1
5.6

100.0
53.2
22.2
19.2
5.4

100.0
50.7
26.9
11.3
11.1

Airframe plants...................... 100.0
Group I............... ............ 65.0
Group II........................... 20.2
Group III.........................
7.9
Group IV ..........................
6.9

100.0
60.3
25.0
7.6
7.1

100.0
60.2
25.3
5.9
8.6

100.0
61.6
22.1
7.7
8.6

100.0
55.4
26.4
9.8
8.4

100.0
55.1
22.1
14.7
8.1

100.0
54.2
22.8
14.8
8.2

100.0
54.8
22.5
15.2
7.5

100.0
57.6
16.9
18.1
7.4

100 0
57.6
18.1
11.4
12.9

Engine plants......................... 100.0
Group I ............................. 44.7
Group II-......................... 40.4
Group III......................... 13.8
Group IV ..........................
1.1

100.0
44.4
40.0
14.4
1.2

100.0
35.4
41.7
21.7
1.2

100.0
47.4
29.3
20.9
2.4

100.0
47.4
29.5
21.2
1.9

100.0
47.6
29.0
22.4
1.0

100.0
47.5
28.2
23.3
1.0

100.0
47.5
27.7
23.4
1.4

100.0
47.9
27.0
23.6
1.5

100.0
40.4
39.5
11.6
8.5

Propeller plants...................... 100.0
Group I-„.......................... 20.3
Group I I ........................... 47.6
Group III......................... 32.1
Group IV ..........................

100.0
19.7
50.0
30.3

100.0
9.5
64.5
26.0

100.0
9.6
64.3
26.1

100.0
9.6
64.4
26.0

100.0
9.6
65.0
25.4

100.0
9.4
78.5
10.8
1.3

100.0
9.2
81.2
8.3
1.3

100.0
20.5
70.2
8.0
1.3

100.0
11.6
79.2
7.9
1.3

Au­
gust

1All data are as of end of month.
* Group I—Areas of current labor shortage; Group II—Areas of labor stringency and those anticipating
a labor shortage within 6 months; Group III—Areas in which slight labor reserves will remain after 6 months;
and Group IV—Areas in which substantial labor reserves will remain after 6 months.

The propeller branch had about half of its employment in Group II
areas during 1943. However, beginning with January and continuing
through the first 8 months of 1944, Group II employment increased
from 65 to 80 percent. Sharp variations in employment in labor


11
market area classes indicate the preponderance of a few large plants
in the reporting sample causing major shifts which were of less signif­
icance than might at first appear.
GEOGRAPHIC D IST R IB U T IO N

During World War I the sea was considered an adequate barrier
against the enemy, completely excluding the necessity of considering,
in the location of industrial facilities, the possibility of attack. The
product of the industry with which this report is concerned changed
all that. Because of the potentialities of the present-day airplane
as an offensive weapon, it could no longer be taken for granted that
the Atlantic and Pacific Oceans made this continent impregnable.
Consequently, the coastal location of the airframe, engine, and pro­
peller plants at the outset of the war was a source of uneasiness.
Plans for new plants called for location within the interior of the
country. Existing facilities, however, were expanded, despite their
questionable location, because of the urgent need for airplanes. The
extent of the geographic dispersion of the industry is apparent from
the fact that at the time of the United States’ entrance into the war,
airframe, engine, and propeller plants were situated in 16 States as
compared with 25 States by the end of 1943. The shift in geographic
distribution can be visualized in more detail from consideration of
changes in the proportion of employment in the six Army Air Forces
Procurement Districts 5 as the industry grew (table 5).
In 1940, approximately 60 percent of airframe employment was in
the Western District and 35 percent in the Eastern District. Thus, 95
percent of the industry was in a vulnerable location. One year later,
almost 90 percent of the airframe workers were still on both coasts. It
was not until 1943 that the results of inward migration became appar­
ent. B y the end of that year, although 28 percent of employment
was in the Eastern District, the proportion in the Western District had
fallen to 33 percent. Thus, within a 3-year period the 95 percent
coastal employment was reduced to 61 percent, but especially impor­
tant (in view of the threat from Japanese ship-based air power) was
the fact that the proportion on the West Coast decreased from 60 to
33 percent. Despite the inland shift, southern California continued
to be the most important airframe region. At the beginning of 1940,
the State of California had 32,000 airframe workers or more than half
of total airframe employment. B y the time Pearl Harbor was at­
tacked, this figure exceeded 150,000 and was 48 percent of the total.
Peak was reached in July 1943 with 280,000 at work, but the propor­
tion of the total had fallen to 31 percent. New York was the only
other State tliat approached California in airframe employment; the
highest level attained in New York was slightly more than 135,000
in September 1943. The move inland is readily apparent from the
employment peak in 1943 of 41,000 for Oklahoma and 69,000 each
for Kansas and Texas.
Engine employment was found in 7 States in 1940, Connecticut
and New Jersey being the principal areas of production. Conse-*
* States included in Army Air Forces Procurement Districts are as follows: Eastern.—Connecticut, Dela-<
ware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode
Island,mud Vermont. Southeastern.—Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina,
South Carolina, Tennessee, Virginia, and West Virginia. Central.—Michigan and Ohio. Mid-Central.—
Illinois, Indiana, Iowa, Minnesota, and Wisconsin. Mid-Western.—Arkansas, Colorado, Kansas, Louisiana,
Missouri, Montana, Nebraska, New Mexico, North Dakota, Oklahoma, South Dakota, Texas, and Wyo«
ming. W&stern —Arizona, California, Idaho, Nevada, Oregon, Utah, and Washington.




12
quently, the Eastern District had from 80 to 90 percent of all engine
employment throughout the year. As a result of the entrance of the
automobile industry into this phase of aircraft manufacture, the
Central District (covering Ohio and Michigan), which had accounted
for only 2 to 5 percent of engine employment in 1940, contained 39
percent of the workers by the end of 1943. The proportion in the
Eastern District had declined to a third. Michigan led all other
States in engine employment by November 1943, with 97,600; this
figure was more than double that for either Connecticut or New Jersey,
the former leaders in the field. The West Coast, though first in air­
frame production, had but one small engine plant whose prime con­
tracts were completed by mid-1943.
T able 5.— Percentage Distribution o f Airfram e, Engine, and Propeller Em ploym ent,
b y A rm y A ir Forces Procurement D istricts, June 1 9 4 0 -June 1944 1
1940
Army Air Forces Procure­
ment District
June

1942

1941

Decem­
June
ber

Decem­ June
ber

1944

1943

Decem­
ber

June

Decem­
June
ber

All plants..............................
Eastern..........................
Southeastern..................
Central....... ...................
Mid-Central...................
Mid-Western.................
Western..........................

100.0
48.1
.5
.3
2.9
2.3
45.9

100.0
46.5
.6
1.1
3.8
4.0
44.1

100.0
42.7
.9
.4 .7
3.4
5.6
42.7

100.0
36.2
.8
9.9
4.1
6.9
42.1

100.0
35.0
.7
15.8
5.2
10.0
33.3

100.0
33.7
.9
17.6
5.5
12.6
29.7

100.0
31.3
1.5
19.4
7.0
14.6
26.2

100.0
30.3
2.3
19.3
8.7
16.2
23.2

100.0
28.9
2.9
19.7
9.6
17.5
21.5

Airframe plants....................
Eastern...........................
Southeastern..................
Central_______________
Mid-Central__________
Mid-Western.................
Western..........................

100.0
35.0
.7

100.0
35.1
.7

100.0
33.2
1.2
.8

100.0
30.2
1.1
2.7

3.1
61.2

5.4
58.8

7.5
57.3

9.3
56.7

100.0
30.7
1.0
8.3
.1
13.8
46.1

100.0
30.5
1.2
11.6
.6
16.7
39.4

100.0
28.3
2.0
12.6
2.0
19.4
35.7

100.0
28.1
3.2
11.1
2.6
22.0
33.0

100.0
27.1
4.1
11.4
2.7
23.1
31.6

Engine plants.......................
Eastern............. .............
Southeastern.
Central...........................
Mid-Central...................
Mid-Western
Western

100.0
84.8

100.0
77.4

100.0
66.6

100.0
49.9

100.0
44.0

100.0
41.7

100.0
37.6

100.0
33.0

1.5
13.3

5.0
17.2

17.6
15.5

33.1
16.7

36.5
19.3

36.0
22.2

.4

.4

.3

.3

.2

.1

38.0
22.5
1.7
.2

38.6
25.6
2.8

100.0
30.4
.6
36.5
25.9
6.6

Propeller plants....................
Eastern............ ..............
Southeastern...
_T _
Central
_ _ _
Mid-Central __
Mid-Western
Western

100.0
100.0

100.0
100.0

100.0
92.3

100.0
79.1

100.0
61.8

100.0
52.9

100.0
51.3

100.0
49.7

100.0
48.0

7.7

12.4
8.5

27.5
10.7

37.0
10.1

37.6
11.1

40.6
9.7

41.8
10.2

i All data are as of end of month.

In 1940 all propeller employees were in the Eastern D istrict, in the
States of Connecticut and New Jersey. As in the case of engines, the
assistance of outside industry had the effect o f moving part of the
production inland. In December 1943, 50 percent o f the employment
was in the Eastern and 40 percent in the Central D istrict. In June
1944, Ohio had more propeller employment than any other State,
with almost 14,000 employees; and Michigan and New Jersey were
next, with 9,000 each; Connecticut had approximately 8,000 workers.
States on the West Coast had no propeller production.
Labor Turnover

The magnitude o f the task confronting persons concerned with the
manning o f aircraft plants becomes clearer when consideration is



13
to turnover in the industry. Before additional workers could
fiven
e added to the labor force to provide for increased schedules, those
who quit or were drafted had first to be replaced. The recruitment
problem became more and more difficult as time passed because of
increasing competition for a rapidly depleting supply of labor. Thus,
in 1941, airframe, engine, and propeller plants had to hire 1,500
workers to increase employment by 1,000, but in the following year
to obtain the same increase it was necessary to hire 2,100 workers.
The situation was most critical in 1943, though this ratio was no
longer meaningful, as the rate of expansion slowed down. The main
cause of this situation was separations, 60 to 70 percent of which were
voluntary. In 1941, the average monthly rate for all separations was
3.3 per 100 workers. It rose to 5.3 in 1942 and to 5.7 in 1943 (table
6). T o meet this situation the War Manpower Commission intro­
duced certificates of availability and a controlled-referral program to
help keep the production lines manned. It should be noted, however,
that separation rates in airframe, engine, and propeller plants have
consistently been lower than the average for manufacturing as a
whole. The separation rate averaged 6.3 percent in the first 8 months
of 1944, but the increase over 1943 was due to an increase in discharges
and lay-offs and not to an increase in the quit rate.
It was more difficult to recruit and maintain the airframe branch of
the industry than the engine and propeller branches, not only because
more workers were required, but because airframe employees showed
a much higher incidence of quits than engine and propeller workers.
For the whole year 1941, approximately 30 airframe employees of
every 100 on the pay roll quit, as against only 17 in engine and pro­
peller plants. These voluntary withdrawals remained at about the
same level in engine and propeller plants in 1942 but increased to
approximately 45 quits per 100 employees in airframe plants. All 3
branches recorded increases in 1943, but again the quits rose most in
airframe plants, advancing to 55 per 100 employees. There were 37
quits for every 100 employed in propeller plants in 1943 and only 30
in engine plants. The 1944 picture through August remains sub­
stantially the same, the poorest showing being made by airframe and
the best by engine plants. For a variety of reasons the quit rate
among female workers was roughly double that of males in 1943 and
somewhat less than double in 1944 (table 7). The female quit rates
have been highest in airframe plants. W ith women accounting for
40 percent of airframe employment and about 30 percent of engine
and propeller employment, the effect on separation rates is obvious.
The greater instability among airframe workers is understandable.
The difficulty is a basic one inherent in the mushrooming of an indus­
try. The necessity for hiring thousands of workers in a short space
of time resulted in the acquisition of many inadaptable to factory
employment. Turnover is always greater among those newly hired
than among those with longer work experience in an establishment.
Reference has already been made to the larger proportion of women
in this branch of the industry and the effect of their higher quit rates.
Serious housing, transportation, and shopping problems have arisen
in centers of large airframe production, and these too have contributed
to the higher separations in this branch of the industry. This has
affected women especially, many of whom, with home responsibilities
as well, found continuous work 6 days a week impossible. Though




14
there is no record of the number of individuals quitting the industry
as opposed to those moving from one establishment to another, it
is significant that many of the quits have been temporary as indi­
cated by the numbers rehired. Fortunately, airframe management
and labor have recognized the problems involved and have done
much to meet them in order to keep production lines fully manned.
T a b l e 6.— Labor-Turnover Rates (per 100 Em ployees) in Airfram e, Engine, and Propeller
Plants,1 January 1941-A u gu st 1944
[1944 figures revised]
Total airframe, engine, and propeller
plants
Year and month

mi*

Annual rate *_____
January..................
February................
March.....................
April.......................
M ay........................
June........................
July.........................
August....................
September............
October...................
November..............
December...............

1942 3

Total
accessions

Airframe plants

Separations
Total

114.7
======
12.0
7.8
8.1
9.5
9.9
10.2
11.3
10.1
9.5
9.6
7.4
9.3

39.0

Quits

Mili­
tary

Total
acces­
sions

All
other2

Separations
Total

27.0
=====
2.2
2.0
2.5
2.5
2.5
2.0
2.1
2.4
2.7
2.4
1.8
1.9

3.7
—
.4
.5
.4
.3
.3
.2
.2
.1
.1
.2
.2
.8

8.3

3.3
3.2
3.9
3.4
3.5
2.8
3.0
3.2
3.3
3.5
2.6
3.3

.7
.7
1.0
.6
.7
.6
.7
.7
.5
.9
.6
.6

124.1
43.0
..,, ----=
3.5
12.0
3.5
7.8
4.1
9.0
10.3
3.7
10.5
4.0
10.9
3.0
3.3
12.5
11.4
3.6
3.6
10.5
10.6
3.9
8.2
3.0
10.4
3.8

_

—

=

Quits

Mili­
tary

30.2
- ■— 2.4
2.3
2.4
2.8
2.8
2.3
2.4
2.8
3.0
2.7
2.1
2.2

All
other2

3.6

9.2

.4
.4
.4
.3
.3
.2
.1
.1
.1
.2
.2
.9

7i
.8
1.3
.6
.9
.5
.8
.7
.5
1.0
.7
.7

Annual rate 4~ .......

123.9

63.9

38.5

17.2

8.2

134.6

72.0

45.2

18.0

8.8

January...................
February................
March.....................
April........................
M ay........................
June........................
July.........................
August....................
September..............
October...................
November..............
December...............

11.3
8.2
8.7
9.5
8.9
10.3
10.6
10.9
12.0
12.3
11.6
9.6

3.7
3.5
4.6
5.3
4.8
4.3
5.1
6.1
7.2
7.4
6.3
5.6

2.0
2.2
3.0
3.8
3.4
2.9
3.1
3.6
4.1
3.9
3.4
3.1

.9
.7
.8
.9
.8
.9
1.3
1.8
2.4
2.8
2.2
1.7

.8
.6
.8
.6
.6
.5
.7
.7
.7
.7
.7
.8

11.2
8.0
8.7
10.0
9.9
12.0
12.5
13.0
13.6
13.3
12.4
10.0

4.1
3.9
5.4
6.1
5.6
4.9
5.7
7.1
8.1
8.0
6.9
6.2

2.4
2.6
3.6
4.4
4.0
3.5
3.7
4.3
4.8
4.4
3.9
3.6

1.0
.8
.9
.9
.9
.9
1.4
1.9
2.5
2.8
2.2
1.8

.7
.5
.9
.8
.7
.5
.6
.9
.8
.8
.8
.8

194S •

*

Annual rate4___ _

91.4

68.6

49.9

11.1

7.6

92.5

73.7

55.0

10.9

7.8

January...................
February................
March.....................
April.......................
M ay........................
June........................
July.........................
August....................
September..............
October...................
November...............
December...............

10.2
8.9
8.9
7.5
7.0
8.1
8.1
7.2
7.9
7.3
6.1
4.2

5.6
5.5
6.3
5.6
5.1
5.5
6.2
6.4
6.3
5.8
5.4
4.9

3.3
3.3
4.3
4.2
3.9
4.1
4.8
5.1
5.0
4.5
3.9
3.5

1.8
1.7
1.4
.9
.6
.7
.8
.8
.7
.7
.5
.5

.5
.5
.6
.5
.6
.7
.6
.5
.6
.6
1.0
.9

10.5
9.1
8.9
7.4
7.1
8.5
8.3
7.3
8.1
7.5
6.0
3.8

6.1
5.9
6.7
6.0
5.5
5.9
6.6
6.9
6.9
6.2
5.7
5.3

3.7
3.7
4.8
4.6
4.3
4.6
5.2
5.6
5.5
4.9
4.2
3.9

1.8
1.7
1.4
.8
.6
.7
.7
.8
.7
.7
.5
.5

.6
.5
.5
.6
.6
.6
.7
.5
.7
.6
1.0
.9

5.4
4.4
4.1
4.1
4.8
5.5
5.0
4.2

5.7
5.1
6.4
5.8
7.2
6.3
6.3
7.9

4.0
3.6
4.2
4.1
4.4
4.9
4.6
5.7

.6
.5
.8
.9
1.1
.8
.6
.4

1.1
1.0
1.4
.8
.8
1.5
1.1
1.8

5.0
4.0
3.8
3.7
4.5
5.6
5.0
4.5

6.1
5.5
6.9
6.1
6.7
8.0
6.4
8.7

4.3
4.0
4.6
4.3
4.7
5.4
4.9
6.2

.6
.5
.9
1.0
1.2
1.0
.7
.5

1.2
1.0
1.4
.8
.8
1.6
.8
2.0

19U 1

January...................
February................
March.....................
April.......................
M ay........................
June........................
July........................
August....................

See footnotes at end of table.




15
T able 6.— Labor-Turnover Rates (per 100 Em ployees) in Airfram e, Engine, and P ro­
peller Plants, January 1941—August 1944 — Continued
Propeller plants

Engine plants
Year and month

Separations

Separations

Total
acces­
sions

Total

Quits

Mili­
tary

All
other *

6.9

71.0

24.4

17.2

2.6

4.6

.5
.6
.4
.5
.5
.7
.9
.8
.6
.6
.4
.4

7.2
5.9
6.7
6.3
5.8
6.3
6.1
4.0
3.9
6.1
5.1
7.6

1.1
2.8
2.8
2.3
1.9
2.6
2.6
1.7
2.5
1.7
1.2
1.2

.9
1.2
1.5
1.7
1.3
2.1
1.7
1.4
2.2
1.5
.9
.8

.1
1.2
.3
.1
.3
.1
.1
.1
(«)
.1
(6)
.2

.1
.4
1.0
.5
.3
.4
.8
.2
.3
.1
.3
.2

15.1

6.6

90.2

35.9

17.6

13.6

4.7

.7
.5
.5
.8
.7
.8
1.2
1.4
2.1
2.6
2.2
1.6

.6
.5
.6
.7
.5
.5
.6
.5
.6
.5
.5
.5

11.3
11.9
11.2
9.9
7.8
5.2
5.4
4.8
4.7
5.6
6.0
6.4

2.5
1.9
2.5
2.5
2.7
2.4
2.6
3.6
4.0
4.8
3.8
2.6

1.3
1.3
1.6
1.4
1.7
1.2
1.2
1.6
1.7
2.1
1.5
1.0

.9
.4
.5
.8
.6
.9
1.0
1.2
1.9
2.3
1.9
1.2

.3
.2
.4
.3
.4
.3
.4
.8
.4
.4
.4
.4

29.7

11.3

7.5

82.5

55.7

36.9

10.8

8.0

1.6
1.3
2.3
2.5
2.3
2.6
3.1
3.3
3.1
2.8
2.6
2.2

1.7
1.8
1.5
1.0
.8
.7
.8
.7
.7
.6
.5
.5

.5
.5
.7
.5
.5
.7
.7
.6
.6
.7
.7
.8

7.4
7.8
8.0
6.3
7.9
7.0
8.1
7.0
7.8
6.2
4.8
4.2

3.8
3.8
3.5
3.5
3.8
4.0
5.5
5.4
4.9
6.2
6.1
5.2

1.8
1.8
1.9
2.0
2.5
2.7
4.0
4.1
3.9
4.5
3.8
3.9

1.5
1.6
1.2
1.1
.9
.8
.7
.7
.6
.7
.6
.4

.5
.4
.4
.4
.4
.5
.8
.6
.4
1.0
1.7
.9

3.0
2.6
2.8
3.1
3.3
3.2
3.8
4.1

.6
.5
.7
.7
.6
.4
.3
.2

.7
.9
1.5
1.1
1.0
1.5
1.6
1.6

4.7
4.4
4.0
5.1
4.6
5.7
6.3
4.6

4.8
4.3
4.7
6.1
7.3
5.7
6.4
6.5

3.4
3.0
3.4
4.6
4.9
4.7
5.3
5.5

.8
.7
.8
.9
.7
.4
.3
.3

.6
.6
.5
.6
1.7
.6
.8
.7

Total
acces­
sions

Total

Quits

Mili­
tary

19419
Annual rate4—.......

90.0

27.3

17.2

3.2

January...................
February................
M a rch ..................
April.......................
M ay........................
June........................
July.........................
August....................
September.—.........
October................„
November..............
December............. .

12.0
8.1
6.1
7.6
8.6
8.5
8.3
6.7
7.1
6.7
4.9
5.4

1.9
2.3
3.5
2.5
2.3
2.3
2.3
2.1
2.5
2.4
1.4
1.8

1.0
1.2
2.9
1.6
1.6
1.3
1.2
1.2
1.8
1.6
.9
.9

.4
.5
.2
.4
.2
.3
.2
.1
.1
.2
.1
.5

19429
Annual rate 4_____

93.1

40.8

19.1

January..................
February................
March.....................
April.......................
M ay........................
June........................
July.........................
August....................
September___ ____
October...................
November..............
December...............

11.7
8.2
8.5
7.8
6.3
6.2
5.7
4.8
7.4
8.9
9.3
8.3

2.4
2.3
2.7
3.4
2.9
2.9
3.4
3.3
4.6
5.0
4.4
3.5

1.1
1.3
1.6
1.9
1.7
1.6
1.6
1.4
1.9
1.9
1.7
1.4

194S9
Annual rate 4—.......

87.1

48.5

January..................
February................
March___ '_______
April.......................
M ay........................
June........................
July.........................
August....................
Septem ber............
October...................
November..............
December...............

9.3
7.8
8.6
8.0
6.5
6.6
7.0
6.8
7.3
6.8
6.6
5.8

3.8
3.6
4.5
4.0
3.6
4.0
4.6
4.6
4.4
4.1
3.8
3.5

19449
January..................
February................
March............ , ___
April.......................
M ay........................
June........................
July.........................
August— . ..............

7.0
5.6
5.0
5.3
5.6
5.2
4.8
3.2

4.3
4.0
5.0
4.9
4.9
5.1
5.7
5.9

All
other 9

1 Turnover data are not strictly comparable with employment data, since they have been obtained from
different sources and coverage is not identical.
2 Includes discharges, lay-offs, and miscellaneous separations.
9 Based on wage earners only.
4 Annual rates are the sums of the monthly rates per 100 employees.
* Based on total employment.
• Less than a tenth of 1 percent.




16
T able 7.— Labor-Turnover Rates (per 100 Em ployees) in Airfram e, Engine, and
Propeller Plants, b y S ex, January 1943-A u gu st 1 9 4 4 1
11944 figures revised]
Total accessions
Year and month

All plants
Male

Female

Airframe plants
Male

Female

Engine plants
Male

Female

Propeller plants
Male

Female

1948
January....................
February..................
March.......................
April.........................
M a y ........................
June..........................
July...........................
August......................
September................
October—. ................
November-...............
December.................

7.5
6.7
7.0
6.3
5.5
6.4
6.5
5.8
6.6
6.6
4.9
3.6

17.1
13.3
12.2
10.3
9.5
11.1
10.5
9.3
10.0
9.2
7.3
4.5

7.8
6.9
7.2
6.5
5.7
6.9
7.0
6.1
7.0
6.4
5.1
3.5

17.0
13.2
11.9
9.8
9.3
11.2
10.4
9.3
9.9
9.2
7.4
4.1

6.9
6.1
6.1
5.9
4.7
4.6
4.4
4.5
5.0
4.5
4.3
3.9

18.9
14.0
14.2
13.1
10.2
10.0
11.0
9.5
10.9
9.5
7.1
6.7

4.4
5.8
6.5
5.1
6.1
6.3
7.4
6.6
7.2
5.6
4.6
3.9

16.7
13.8
12.9
9.5
12.8
13.6
10.3
8.1
9.6
8.0
5.5
5.0

_
m
January....................
February...................
March.......................
April.........................
M a y ........................
June..........................
July...........................
August—...................

4.5
3.5
3.1
3.2
3.5
4.2
3.8
3.3

6.1
5.5
5.7
5.4
6.6
7.7
7.0
5.7

4.5
3.3
3.0
2.9
3.6
4.4
3.8
3.5

5.8
5.2
5.1
4.9
6.1
7.4
6.7
6.1

4.8
4.1
3.4
3.8
3.4
3.7
3.5
2.8

7.8
7.2
8.0
7.0
8.8
8.6
7.7
3.9

3.4
3.8
3.1
4.0
3.6
4.4
5.3
4.2

8.5
5.9
6.4
8.1
7.2
9.0
8.6
5.5

Total separations8
Year and month

All plants
Male

Airframe plants

Female

Male

Female

Engine plants
Male

Female

Propeller plants
Male

Female

1948
January.....................
February...................
March.......................
April.........................
M a y --......................
June..........................
July...........................
August......................
September................
October................ —
November.................
December.................

5.6
5.5
6.0
4.9
4.4
4.6
5.2
5.5
5.5
4.9
4.3
4.0

5.7
5.6
6.8
6.8
6.5
7.1
7.8
8.1
7.8
7.4
7.2
6.6

6.0
5.9
6.4
4.9
4.6
4.8
5.5
5.9
6.1
5.3
4.6
4.2

6.0
5.9
7.2
6.8
6.9
7.5
8.2
8.5
8.1
7.7
7.5
7.0

4.0
3.9
4.3
3.6
3.5
3.7
4.3
3.9
3.6
3.2
3.0
2.6

3.6
3.6
4.7
5.3
4.1
4.7
5.5
6.0
6.3
6.0
5.5
4.7

3.8
3.6'
3.6
3.5
3.5
3.5
5.3
5.1
4.5
6.2
5.6
5.4

3.0
3.5
4.0
3.7
4.5
5.3
6.3
6.4
6.1
6.3
7.3
4.4

1944
January.....................
February...................
March.......................
April..........................
M a y --......................
June...........................
July...........................
August......................

4.7
4.3
5.7
5.3
5.8
6.3
5.2
6.8

7.3
6.4
7.5
6.8
7.2
8.7
7.9
9.8

5.1
4.7
6.2
5.6
6.2
7.1
5.4
7.6

7.8
6.7
8.0
7.1
7.5
9.4
7.9
10.3

3.5
3.2
4.3
4.2
4.0
4.4
4.6
4.8

5.3
4.9
5.9
5.7
5.7
6.8
8.1
8.2

4.8
4.4
4.9
6.1
6.8
5.4
6.3
6.3

4.8
4.2
4.2
6.0
8.3
6.3
6.8
6.9

See footnotes at end of table.




17
T able 7.— Labor-Turnover Rates Cper 100 Em ployees) in Airfram e, Engine, and
Propeller Plants, b y Sex , January 1943-A u gu st 1 9 4 4 1— Continued
(1944 figures revised]
Quits
Year and month

All plants
Male

Airframe plants

Female

Male

Female

Engine plants
Male

Female

Propeller plants
Male

Female

1943
January.....................
February..................
M arch......................
April.........................
M a y -.......................
June..........................
July...........................
August......................
September.................
October.....................
November.................
December.................

2.5
2.5
3.4
3.2
2.9
2.9
3.6
3.8
3.8
3.2
2.8
2.5

5.0
4.9
5.9
6.1
5.7
6.2
6.9
7.3
7.1
6.6
5.7
5.4

2.8
2.8
3.8
3.6
3.2
3.2
3.9
4.2
4.3
3.5
3.1
2.7

5.3
5.2
6.3
6.4
6.0
6.6
7.4
7.8
7.4
7.0
5.9
5.7

1.3
1.4
1.9
2.0
1.9
2.0
2.6
2.4
2.1
1.7
1.7
1.4

2.9
2.9
3.4
4.1
3.3
3.9
4.4
5.2
5.7
5.1
4.5
4.0

1.4
1.4
1.7
1.5
2.0
2.0
3.9
3.6
3.4
4.5
3.7
4.0

2.6
2.8
3.3
3.2
3.8
4.4
4.4
5.6
5.4
4.6
4.0
3.4

,
m
January.....................
February...................
March.......................
April.........................
M a y ........................
June..........................
July...........................
August......................

3.0
2.8
3.3
3.1
3.3
3.8
3.5
4.5

5.8
5.2
5.8
5.7
6.0
6.7
6.6
7.7

3.2
3.0
3.6
3.2
3.5
4.2
3.6
4.9

6.2
5.5
6.3
6.1
6.5
7.3
6.7
8.2

2.3
1.9
2.1
2.4
2.3
2.5
2.7
3.2

4.5
3.8
4.0
4.2
4.1
4.7
6.2
6.2

3.2
2.9
3.3
4.3
4.4
4.4
5.1
5.4

4.1
3.3
3.5
5.3
6.1
5.4
5.9
5.9

* Data not available prior to January 1943.

2Includes quits, military separations, discharges, lay-offs, and miscellaneous separations.

M ilitary separation rates were about the same for the 3 branches
of the industry (table 6). Withdrawals for the armed forces were
very small during 1941, amounting to less than 4 per 100 employees*
W ith the United States’ entrance into the war, inductions increased,
resulting in 17 of every 100 employees being taken into the services
during 1942. While the average monthly rate for 1941 was 0.3
per 100 workers, it increased to approximately 1.5 for 1942, with
the peak of 2.8 coming in October. Manning and replacement
schedules did much to slow down the rate of induction during the
beginning of 1943. However, the demand for workers was so great
and the supply of available manpower so limited that West Coast
airframe manufacturers made it clear that their plants could offer
airplanes or men for the services but not both. There was agitation
for draft deferment for W est Coast airframe workers in October 1943,
and a stay of induction was finally ordered early in November for
this area. The military separation rate consequently declined to 0.5
per 100 by November 1943. Nevertheless, about 11 out of every
100 airframe, engine, and propeller workers entered the armed forces
during 1943. Cancellation of occupational deferments held by men
under 26 years of age increased the military separation rate during
the first half of 1944, but the industry’s increased productivity was




18
relied upon to offset the manpower taken by the armed forces. Since
th$n the rate has been declining in line with the retarded rate of
induction.
Discharges and lay-offs were of little significance until 1944. With
workers so hard to get, discharges were largely confined to cases of
serious infraction of company regulations. This was particularly true
through 1943. Later, plants began to weed out unsatisfactory per­
sonnel. Lay-offs, except in a few isolated cases, were unheard of
prior to 1944 but have been increasing. Contract terminations and
cutbacks, inevitable after the defeat of Germany, will cause the
discharge and lay-off rates to become more important in the near
future.
Absenteeism of Workers

Absenteeism became of major concern during the present emer­
gency because lost time could not be afforded in the production of
vitally needed war goods. The aircraft industry, particularly the
airframe branch, realized that a reduction in absenteeism was possible
only by a determination of the causes and the adoption of remedial
action designed to keep worker morale high both on and off the job.
The measures taken, especially with reference to the provision of
community facilities, were never adequate to counteract the strains
imposed upon living and working conditions by the exigencies of the
war. * Efforts were made to provide more adequate wash- and lunch­
room facilities. Absence-control measures were undertaken, to give
assistance where needed or to institute disciplinary action where
necessary. In addition, health and recreation facilities were estab­
lished and personal services provided, such as assistance in finding
housing and making car-pooling arrangements. Day nurseries were
established so that women workers could be on the job regularly.
Provisions were also made for additional housing, better transporta­
tion facilities, and more convenient shopping hours.
Despite the vigorous action generally adopted by airframe plants,
absence rates were slightly higher in this branch of the industry than
in engine and propeller plants in 1943. Kates in 1943 were generally
about 7 to 8 percent in airframe plants and 6 to 7 percent in engine
and propeller plants (table 8). During the influenza epidemic in
December 1943, the absence rate slightly exceeded 10 percent for
airframes and approximated 9 percent for engines and propellers.
W ith the turn of the year, the rates returned to their former level.
However, during March and April the propeller branch, with rates
of about 8 percent, exceeded the airframe figure. The sharp drop
registered from April to M ay for the three branches is not a real
measure of change, since the figures for April and all previous months
were computed for direct workers alone and all subsequent figures are
based oh total employment. Since April, the rate for all branches
has been around 6 to 7 percent. Throughout the period covered, the
combined airframe, engine, and propeller rate showed slight variation
from the average for all manufacturing. Thus, in March 1943 the
combined aircraft figure was 6.6 percent as compared with 6.1 for
all manufacturing. In August 1944 the rates were 6.5 and 6.6,
respectively.




19
T a b l e 8.— Absence Rates 1 in Airfram e, Engine, and Propeller Plants,
January 1943-A u gu st 1944
19434
Month

January..................................
February................................
March.....................................
April.......................................
M ay........................................
June........................................
July........................................
August..................................
September............ .................
October.. .................................
November..............................
December...............................

1944*

All
All
Airframe Engine Propeller
Airframe Engine Propeller
plants
plants
plants
plants
plants
plants
plants
plants
(8)
(8)
6.6
6.5
6.9
6.9
7.4
7.6
7.1
7.3
7.1
9.7

6.3
6.8
6.7
6.7
7.1
7.2
7.8
8.0
7.4
7.5
7.3
10.1

(8)
<8)
6.1
5.8
6.1
6.1
6.2
6.6
6.1
6.6
6.8
8.7

(8)
(8)
6.0
6.3
5.9
6.4
6.9
7.6
7.2
7.3
6.5
9.1

7.1
7.5
7.1
7.9
6.4
6.2
6.4
6.5

7.4
7.7
7.3
8.1
6.5
6.2
6.2
6.2

6.3
6.7
6.5
7.3
6.3
6.2
6.9
7.3

6.5
7.5
7.9
8.4
6.5
5.2
6.2
6.1

i Based on workweek nearest 15th of month.
* Absence rates for period January 1943-April 1944 based on man-hours lost as a percent of time worked
plus time lost by direct workers. Beginning with May 1944 absence rates are based on total employment
and represent man-shifts lost as a percent of man-shifts scheduled.
* Reports for engine and propeller plants not submitted prior to March 1943.

Hours and Earnings 6

As in other war industries, aircraft workers have experienced
materially increased earnings. This was the result primarily of the
extended workweek and resulting overtime pay (time and a half for
all hours in excess of 40) as well as increases granted in hourly rates.
Upgrading as a result of acquired skill and differentials for second- and.
third-shift employment also had their effect.
When the National War Labor Board assumed responsibility for
wage structure, there was no uniformity in hourly rates paid to air­
frame workers performing identical jobs. The Board considered it
impossible to act equitably under the circumstances and appointed a
special committee to study the wage structure of West Coast airframe
plants. On the basis of this study, which covered eight companies,
the committee in March 1943 proposed various changes for the region.
This served as a pattern for the airframe industry and, together with
subsequent orders, resulted in the establishment of basic rates for
specified occupations and grades, entrance rates, provision for auto­
matic upgrading, and shift differentials.
Average hourly earnings in airframe plants increased steadily from
$0.69 in January 1940 to $1.16 by August 1944 (table 9). The average
weekly earnings rose from $27.85 to $54.15 during the same period.
This exceeded the income for manufacturing workers generally, since
the average hourly earnings for this group rose from $0.66 to $1.02 and
average weekly earnings from $24.56 to $45.85 during the correspond­
ing period. However, the workweek of airframe wage earners was
longer than that prevailing in manufacturing as a whole, namely, 41
hours as against 38 in January 1940 and 47 as against 45 in August
1944. The airframe hourly earnings continued to rise in 1944,
probably because of the decrease in the number of learners and the
effects of upgrading resulting from acquired skill.
•The aircraft figures shown here cover all prune contractors of completed airframes, engines, and
propellers, including converted plants. They should not be compared with monthly data for the aircraft
ana aircraft-engine industries released by the Bureau’s Employment Statistics Division which exclude
converted plants but cover subcontractors and parts manufacturers as well as prime contractors.




20
T able 9.— Average H ours and Earnings 1 o f W age Earners in Airfram e, Engine, and
Propeller Plants, January 1940-A u gu st 1944
Airframe plants

Engine plants

Propeller plants

Average

Average

Average

Year and month

Week­ Weekly Hourly Week­ Weekly Hourly Week­ Weekly Hourly
earn­
earn­
earn­
earn­
earn­
earn­
ly
ly
ly
hours1
23
4 ings
ings hours2 ings
ings hours2 ings
ings

mo

January. ...........
February 4.........
March................
April..................
M a y ..................
June...................
July...................
August..............
September.........
October..............
November.........
December..........

40.6
39.9
41.1
40.6
40.0
41.8
41.3
43.6
44.3
44.0
44.3
44.5

$27.85
27.55
28.48
28.16
28.18
30.37
29.88
31.87
32.34
32.64
32.95
32.97

$0.69
.69
.69
.69
.70
.73
.72
.73
.73
.74
.74
.74

47.0
44.9
45.4
46.1
46.0
46.9
46.0
46.1
47.1
45.9
43.4
46.5

$40.09
38.90
38.15
38.32
37.47
38.55
37.91
38.65
38.50
38.61
37.23
39.39

$0.85
.87
.84
.83
.82
.82
.82
.84
.82
.84
.86
.85

45.8
37.6
45.5
45.4
44.0
45.0
42.9
44.2
44.7
44.1
37.6
44.7

$35.29
27.69
34.94
34.73
32.82
34.41
32.16
33.71
34.09
33.77
29.37
34.30

$0.77
.74
.77
.77
.75
.76
.75
.76
.76
.77
.78
.77

January............
February...........
March...............
April..................
M ay...................
June...................
J u ly ..................
August..............
September.........
October.............
November 4.......
December4.......

44.7
45.3
44.9
45.2
45.2
44.6
44.5
45.5
45.4
44.9
44.0
45.8

34.08
34.85
34.50
35.11
35.21
34.80
35.32
37.85
37.81
38.63
39.34
41.53

.76
.77
.77
.78
.78
.78
.79
.83
.83
.86
.89
.91

46.3
45.5
45.8
41.9
47.0
47.0
47.0
47.0
48.1
47.2
47.7
48.3

41.22
39.57
40.79
38.36
45.07
46.49
47.36
48.71
50.82
52.04
55.28
55.63

.89
.87
.89
.92
.96
.99
1.01
1.04
1.06
1.10
1.16
1.15

45.1
47.4
47.7
37.9
47.4
48.5
49.6
3 42.1
45.7
48.6
44.8
53.2

37.26
39.28
41.15
31.39
43.30
44.40
46.33
46.26
46.50
49.26
51.37
63.95

.83
.83
.86
.83
.91
.92
.93
*1.10
1.02
1.01
1.15
1.20

January___
February...
March.........
April...........
M ay............
June............
July.............
August........
September 4.
October.......
November—
December- .

48.9
47.5
47.6
47.4
46.7
46.1
4516
46.0
45.8
45.7
46.1
46.4

46.12
44.35
44.33
44.62
44.52
44.65
44.49
44.78
45.34
44.35
44.91
45.59

.94
.93
.93
.94
.95
.97
.97
.97
.99
.97
.97
.98

50.6
49.7
49.3
48.5
48.3
48.2
48.0
48.3
47.6
48.8
47.3
47.1

62.09
59.34
60.93
58.90
58.43
58.07
59.61
60.21
61.00
61.14
59.25
58.92

1.23
1.19
1.23
1.21
1.21
1.21
1.24
1.25
1.28
1.25
1.25
1.25

52.0
49.7
50.1
50.9
51.5
51.0
52.1
48.9
47.7
48.3
46.2
48.9

59.10
54.15
56.42
58.04
59.51
59.58
59.01
57.47
59.44
60.18
56.38
59.89

1.14
1.09
1.13
1.14
1.16
1.17
1.13
1.18
1.25
1.24
1.22
1.22

January___
February...
March_____
April...........
M ay............
June............
July.............
August........
September4.
October.......
November—
December. _

46.3
45.9
46.1
47.1
46.7
46.4
45.4
45.6
46.5
46.6
46.6
45.6

45.82
45.89
46.48
48.90
49.21
49.47
48.31
48.97
51.58
51.30
51.84
51.12

.99
1.00
1.01
1.04
1.05
1.07
1.06
1.07
1.11
1.10
1.11
1.12

47.2
47.8
48.5
48.0
48.8
46.7
46.7
47.1
47.7
47.7
47.4
46.2

59.84
60.21
61.33
60.40
62.10
59.03
59.40
59.70
62.25
61.14
61.14
58.47

1.27
1.26
1.26
1.26
1.27
1.26
1.27
1.27
1.30
1.28
1.29
1.26

49.0
47.4
47.7
48.2
48.2
48.3
48.3
49.0
49.0
47.0
47.6
47.2

59.62
58.05
58.18
60.14
60.27
60.56
60.94
61.27
64.11
58.89
59.75
59.89

1.22
1.23
1.22
1.25
1.25
1.25
1.26
1.25
1.31
1.25
1.26
1.27

47.6
47.3
46.8
46.6
46.8
46.9
46.5
46.8

53.94
53.64
53.55
53.54
54.30
54.37
53.90
54.15

1.13
1.13
1.14
1.15
1.16
1.16
1.16
1.16

47.7
46.9
47.1
47.1
46.0
46.7
42.2
45.4

61.51
60.39
60.97
61.15
59.49
60.93
55.32
59.19

1.29
1.29
1.29
1.30
1.29
1.31
1.31
1.30

48.8
47.4
46.5
46.7
46.4
47.3
44.3
48.3

62.02
59.52
58.54
59.10
58.16
60.61
57.00
62.72

1.27
1.26
1.26
1.26
1.25
1.28
1.29
1.30

mi

19U

January_______
February...........
March................
April..................
M ay...................
June...................
July...................
August8............ .

1 Based on workweek-nearest 15th of month. The figures shown cover all prime contractors of completed
airframes, engines, and propellers, including converted plants. They should not be compared with monthly
data for the aircraft and aircraft-engine industries released by the Bureau’s Employment Statistics Division
which exclude converted plants but cover subcontractors and parts manufacturers as well as prime
contractors.
2 Average weekly hours are for all wage earners and therefore not strictly comparable with the average
weekly hours shown for direct workers in other series.
3 Fluctuation of hours and earnings in this month was caused by a strike in 1 plant.
4 Fluctuation of hours and earnings in this month caused by holiday.
8 Preliminary.




21
Both engine and propeller plants reported higher earnings than air­
frame plants, with the hourly average for engines slightly more than
that of propellers. A longer workweek and more second- and thirdshift employment had some effect. However, the greater proportion
of skilled workers in these branches was primarily responsible for the
higher earnings. In January 1940 engine wage earners averaged a 47hour week and earned an average of $0.85 per hour or $40.09 per
week. Propeller wage earners had a 46-hour week and averaged
$0.77 per hour or $35.29 per week. Because of longer hours the
weekly earnings for propeller wage earners at times slightly exceeded
those of engine workers. The variation in earnings between the two
branches was narrowed in June 1944; at that time both engine and
propeller wage earners approximated a 47-hour week with hourly
earnings of about $1.31 for the former and $1.28 for the latter. This
resulted in weekly earnings of $60.93 for engine wage earners and
$60.61 for propeller workers. Both branches of the industry reported
hourly earnings averaging $1.30 for August. However, propeller
hours exceeded those of engines, resulting in an earnings figure of
$62.72 as compared with $59.19 for engines.
Production Trends

The number of completed airplanes accepted each month has risen
steadily from January 1941. At that time approximately 1,000 com­
pleted planes were accepted monthly. The figure had risen to almost
2,500 by the end of the year, around 5,000 by the end of 1942, and
8,800 by the end of 1943. In March 1944 alone, 9,117 completed
units were accepted, the record for any one month (table 10).
While this eightfold increase in acceptances is in itself considerable,
the performance it represents is actually even more outstanding.
Prior to 1943, production was concentrated on lighter airplanes.
There was need for large numbers of primary, basic, and advanced
trainers. Fighters predominated among the combat airplanes.
Beginning with 1943, particularly the latter part of the year, heavy
bombers and cargo ships became a significant part of total acceptances.
T o evaluate properly this shift in type of production, together with
the fact that each airplane has its complement of spare parts, it is
necessary to consider the airframe acceptances in terms of weight
rather than units. The total weight of monthly acceptances includ­
ing spare parts was about 4 million pounds early in 1941; it had
almost tripled by the last quarter of the year, reaching about 10
million pounds per month. The increase continued during 1942 and
by the end of 1943 the acceptance figure was close to 90 million
pounds. In M ay 1944 over 102 million pounds were accepted, more
than in any previous month and 30 times the number in January 1941.
The average weight per acceptance each month was about 4,500
pounds in 1941 and increased to 9,800 pounds by the end of 1943.
It rose during 1944 because o f continued large-scale production of
heavy bombers and transports and the introduction of superbombers
into our aircraft program. The highest average weight per acceptance
ever attained was 12,150 pounds reached this June, roughly 3 times
the average weight of acceptances in the early stages of the production
program.




22
T a b l e 10.— N um ber and W eight o f Airfram e Acceptances and N um ber o f Airfram e
W orkers (Including Subcontracting), January 1941-A u g u st 1944
Acceptances
Year and month

Total
number of
complete
units *

Total
employment,
Total
including
weight
estimate
including
for sub­
spares8 (in
contracting
pounds)

1941
January...........
February.........
March..............
April......... .
M ay.................
June.................
July..................
August.............
September____
October_______
November.......
December____

1,012
963
1,136
1,391
1,329
1,478
1,462
1,854
1,946
2,284
2,138
2,462

3,420,300
4,120,100
4,699,500
6,386,900
6,056,200
6,908,000
6,263,600
8,713,500
9,077,100
10,588,200
9,658,100
13,497,100

January. _.
February..
March.......
April.........
M ay..........
June..........
July..........
August___
September.
October__
November.
December.

2,977
3,047
3,483
3,506
3,984
3,738
4,106
4,281
4,307
4,063
4,812
5,501

15,021,700
16,660,500
20,318,000
20,057,400
23,237,000
24,846,300
27,402,700
29,025,000
32,148,800
30,848,400
35,064,700
41,178,600

January. ..
February..
March.......
April.........
M ay..........
June..........
July...........
August___
September.
October__
November.
December .

5,014
5,423
6,265
6,472
7,087
7,097
7,376
7,613
7,598
8,363
8,791
8,802

1944
January........
February___
March............
April.............
M ay.............
June..............
July..............
August.........

8,789
8,761
9,117
8,331
8,902
8,049
8,000
7,937

Average
weight *
per unit
accepted
pounds)

1 162,200
170,600 *•
179,200
191,200
203,100
222,300
242,900
265,500
283,800
310,800
327,600
356,300

Average
weight *
accepted
per
employee
(in
pounds)

Average
number of
employees
per
complete
unit
accepted

3,380
4,278
4,137
4,592
4,557
4,674
4,284
4,700
4,664
4,636
4,517
5,482

21
24
26
33
30
31
26
33
32
34
29
38

160
177
158
137
153
150
166
143
146
136
153
145

388,600
423,700
448,300
479,900
510,200
553,800
594,300
658,200
710,500
774,100
840,500
913,000

5,046
5,468
5,833
5,721
5,833
6,647
6,674
6,780
7,464
7,593
7,287
7,486

39
39
45
42
46
45
46
44
45
40
42
45

131
139
129
137
128
148
145
154
165
191
175
166

37,532,100
43,961,600
51,038,900
55,252,100
60,692,700
61,535,600
65,458,500
69,296,700
71,103,900
76,256,500
82,444,600
86,353,400

975,500
1,013,100
1,037,800
1,062,300
1,084,200
1,115,100
1,139,600
1,148,100
1,170,900
1,179,100
1,185,500
1,167,900

7,485
8,107
8,147
8,537
8,564
8,671
8,875
9,102
9,358
9,118
9,378
9,811

38
43
49
52
56
55
57
60
61
65
70
74

195
187
166
164
153
157
155
151
154
141
135
133

89,989,000
93,500,000
101,400,000
96,400,000
102,400,000
97,800,000
93,900,000
93,900,000

1,156,100
1,137,900
1,108,400
1,084,300
1,063,400
1,027,600
1,009,000
973,300

10,239
10,672
11,122
11,571
11,503
12,151
11,738
11,831

78
82
91
89
96
95
93
96

132
130
122
130
119
128
126
123

1 Latest revisions released by the Army Air Forces. Excludes spares.
8Data from January 1941-December 1943 are latest revisions released by the Army Air Forces. Data
for January-August 1944, from War Production Board.
* Weight of spares included in computation of average.

The remarkable achievement in productivity is particularly evident
from the decrease in the number of employees per acceptance (in­
cluding subcontractors as well as prime contractors) and the substan­
tial increase in the weight accepted per employee. During the
period 1941-43, the number of employees per acceptance varied con­
siderably from month to month but ranged roughly from 130 to 180
workers. However, with the beginning of 1944, the range was at a
much lower level, namely, between 120 and 130. The average weight
accepted per employee doubled between the early months of 1941 and




23
the summer of 1942. Then, with the beginning of a new phase in the
production program, there was no increase in accepted weight per
employee until the early spring of 1943. From that time onward the
increase in accepted weight per employee has been rapid, almost
doubling in a year and reaching 96 pounds in M ay 1944, as compared
with only 21 pounds in January 1941 and 49 pounds in M arch 1943.
Part of the increase in 1941 was due to a lengthening o f hours, but
since 1942 the increase described is an increase in hourly output as
well as per worker per month. Because of this increase in output,
the labor cost per pound of airplane is only about a third as great as
it was early in 1941, despite the fact that earnings per hour are over
half again as large. The pattern of increasing productivity in the
airframe branch as shown here may be taken as an illustration of the
production experience of the other branches of the aircraft industry.




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