Utilization of tractors and cost of tractor power on grain farms

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Title:
Utilization of tractors and cost of tractor power on grain farms
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Creator:
Washburn, Raymond Secord, 1887-
Kifer, R. S. ( jt. au )
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s.n. ( Washington, D. C. )
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A 3At


UNITED


STATES DEPARTMENT OF AGRICULTURE
Bureau of Agricultural Economics


SL-UNIV OF FL LI
_C'CUM.ENTS DEPT



U .S. DEPOSITORY





UTILIZATION OF TRACTORS AND COST OF TRACTOR POWER

ON GRAIN FARMS

(Northern Great Plains and Pacific Northwest, 1933)












By R. S. Washburn, Assistant Agricultural Economist,

and

R. S. Kifer, Senior Agricultural Economist


Washington, D. C.
December 1936


-.9


I S e





























STATEEfT OF COOPERATION AND ASSISTANCE


Thanks are extended to the many grain farmers through whos
courtesies the securing of the field data was made possible.
For assistance in collecting the field data the authors wish
to thank the following:
Kenneth H. P'yers and Nathan Koffsky of the Bureeiau of
Agricultural Eronomics.
Williem J. Edens, Morgan C. Rochester, Henry Y. Pevenous-,
Cruz Venstrome, Dale C. Kieffer, F-y A. Gir- en, tnd HeIJ-ry F.
hsrtkemeier, temnporery employees of the Bureau of Arricultural
Economics.











UTILIZATION OF TRACTORS AMD COST OF TRACTOR PO"IER ON (BAIN FARf'S
(Northern Great Plains and Pacific Northwest, 1533)






By R. S. Washbur'i, Assistant Agricultural Economist,
and R. S. Kifer, Senior Agric Jltural Economist
Bureau of Agricultural Economics


CO7TETS


Pa e:


Introduction ..
Number and size of faris having
tractors and number and size of
farms not having tractors by
type-of-farming areas ...
Crops produced on farms having
tractors and number and size of
Tractors by type-of-farming
areas .


3:



6:


Crop are-a per farm on farms having
tractors and number, type, and
size of traitors .
Kinds of tractor work and annual
hours of use per tractor by
type-of-farming areas .....
Annual hours of use of tractors of
different types and sizes .
Cost of usinr tractors ....


INTrRODUCTION

Successive years of low farm incomes have seriously reduced the resources
of many farmers in the spring wheat regions of the Northern Great Plains and
of the Pacific Northwest. Because of the need for adjustment in the organ-
ization and operation of grain fans in thesp regions and in the light of
changing economic conditions, information with reference to farm organization
and farming practice -'as obtained.

The study was made in April, May, and June of l134 and, for the most
part, applies to the crop year 1h33. The field data were obtained by personal
interviews with 1,674 farm operators in grain producing areas of the Northern
Great Plains and of the Pacific Northwest. The farming areas surveyed, shown
in figure 1, are those outlined in United States Department of Correrce,
Bureau of the Census Bulletin, "Types of Farming in the United States". The
farmers interviewed gave detailed information on the organization and opera-
tion of their farms, such as acreage of wheat and other crops rrown; a history


Pa e








































U 5 DEPARTMENT OF AGRICULTURE NEG 31921 BUREAU OF AGRICULTURAL ECONOMICS
FIGURE I.- TYPE-OF-FARMING AREAS WHERE STUDY WAS MADE OF THE UTILIZATION OF TRACTORS
AND COST OF TRACTOR POWER ON GRAIN FARMS. (AREAS ARE THOSE OUTLINED IN UNITED STATES DE-
PARTMENT OF COMMERCE, BUREAU OF THE CENSUS BULLETIN, "TYPES OF FARMING IN THE UNITED
STATES, 1930").










3.

of crop yields over a period of years; the practices employed in the production
of wheat and other crops; naumbir' and kinds of livestock; kinds and quantities
of livestock products; an inventoy' of the kinds and quantity of equipment on
the farm; the duty of farm machinery and the cost of operating power equipment.

As the study aimed to sow the irethods of growing arid harvesting crops,
particularly wheat, the sample of far is may show: a larger acreage of wheat
and a higher proportion of the land in crois then would a county average. No
particular effort was made for ai," other sclectiori, however, and it is believed
that the records obtained are typical of groin fa.ms in tho type-of-farming
areas studied.

In certain sections of the Northern Gr,-at Plains, particularly western
North Dakota, eastern Montana, aind in many ar..as of South Dakota, conditions
of extreme drought prevailed i, 1935.3 As a result very little harvest was
reported in these drought areas arid the harvest work done with power equip-
ment was abnormal. The use of equipment in a normal season rather than that
reported in 1933 has been used in calculating the cost of operating power
equipment,

In many areas the use of large scale power equipment was common and con-
stituted a large part of the farmi expense. For this reason a series of re-
ports dealing with farm equipment is being published.

The purpose of the presentt report is to show the extent to "vhich tractors
are used for farm power, the type and size of tractors in use, the kinds of
work done and the cost of using tractors on representative farms in the grain-
producing sections of the Northern Great Plains and of the Pacific Northwest.
The other publications in the machinery series are ;

1. Utilization of combined harvester-threshcrs and cost of harvesting
small grains with a combine (Northern Great Plairmns and Pacific Northwest, 19335).

2. Cost of operating .farm motor trucks on grain farms (Northern Great
Plains and Pacific Northwest, 1933)

3. Tillage, planting, and harvesting ?quipment on grain farms and
rates of doing field v;ork: with those irmplements when drawn with horse and with
tractor power (Northern Great Plains and Pacific Northwest)



1UK7BER AID SIZE CF FAR."S HAVING TRACTORS AID NUMBER, AID SIZE
OF FARPI.S IOT HAVING TRACTORS BY T'YPZ-OF-FARPIING AREAS


Tractors were used in all of the grain-producing areas surveyed in the
Northern Great Plains (table 1). They are the chief source of power for
field work on many of the larger .'h-at farms in the more viesterly areas. On
the smaller general farms in the eastern areas o07 the region, horses were
used for certain kinds of field work and on many of these farms horses were
the only source of powmr for fi,.ld work. Thu proportion of far-mers using
tractors, according to this sample, varied from 25 Durcunt in a gunrral farming








Table 1. Number and size of farms having tractors and number and size of
farms not having tractors, by type-of-farming areas, Northern
Great Plains, 1933

: FarmLs having : Faris not having :
State and : tractors :____ tractors : All farms
type-of-farming: Farms :Zrop area: Farms :Crop area: Farms :Crop area
area : studied :per farm : studied :per farm : studied :per farm


: Acres : Number


: Acres : Number


Minnesota
225A
226
22,D
2-TA
227A

North Dakota
225B
175,
174A
168
169
172
170
171
136
139
166
South Dakota
181
192A
174B
180
176
179
182B
175
142A-177
Nebraska
184
18:5
MIont a na
137A
119B

113
114
115
116
87D
589A
120
Wyom i ng
14T-t Ao
Total or
avemra& e P


29
4
15
16
13

9
18
35
26
24
28
;&5
35
51
16
33

16
7
20
16
54
15
14
21
24

55
20

18
17
22
48
44
26
36

24
13

29

982


330
308
573
276
251

506
434
445
623
579
415
292
497
509
505
552

391
223
445
350
649
598
496
571
4753

407
712

396
716
408
740
557
1094
511
525
478
662

690

523


14 : 255
12 : 110
5 : 205
9 : 189
16 : 161

3. : 260
16 : 331
17 : 231
14 : C,
12 : c-.
27 : u5
12 : 262
13 : 261
19 : 195
3 : 207
7 249

16 : 232
20 : 203
11 : 267
14 : 198
7 255
4 : 179
12 : 198
8 : 256
3 : 226

14 i 222
2 t 202

16 : 279
6 : 297
7 : 252
2 : 242
2 : 224

5 : 238
14 : 195
18 : 260
7 : 188

1 : 400

88_8 : 23.8


: 1:


43 : 305
16 160
20 : 331
25 : 245
29 : 201

12 445
34 : 386
52 : 375
40 : 511
36 500
55 : 346
37 282
48 : 433
70 424
19 458
40 : 499

32 : 311
27 : 208
31 382
30 : 279
41 : 581
19 : 510
26 : 358
29 : 484
27 : 446

47 : 352
22 : 665

34 : 341
23 : 606
29 : 370
50 : 720
46 : 543
26 : 1094
41 478
22 : 315
42 : 384
20 496

30 : 680

270 : 436


: Number


: Acres


E












area of Minnesota to 100 percent in one of the wheat areas of Montana. In
Minnesota and in the eastern pert of North Dakcta and South Dakota about 50
percent of the far.-is had tractors; in the central and western parts cf the
Dakotas, about 70 percent; and in Montana, northeastern Wyoming, and north-
western Nebraska about 80 percent were tractor farms. For the entire region
69 percent of the farmers enuumrated used tractors whereas 31 percent did not.
In all areas the crop acreage per farm on farms where tractors were used
exceeded the crop acreage on farms using only horses for field work. Because
of the tendency toward the greater use of tractor power in the areas of large
wheat farms the crop acres per farm averaged 120 percent larger on f'rms
having tractors than on farms not having traitors.

In the Pacific Northwest, tractors were usud in all areas but the
number of non-tractor farms in most areas exceeded the number of farms having
tractors (table 2). For the region as a whole 42 percent of the farm
operators used tractors whereas 58 percent did not. The average crop acreage
per farm was 95 percent larger on farms having tractors thin on non-tractor
farms. Farms having tractors as well as non-tractor farms in th's region
are larger than farms in the Northern Groat PL ins. In addition, the pro-
portion of farms not having tractors to those rLpo -ing tractors far exceeds
that of the IN.orth&rn Groat Plains. This is largely du-. to the fact that the
topography of much or" thu crop ar,.m of the P'-cific Northwest is vc-ry rolling
which makus a tractor, especially the high-whec'l type, less adapted for field
work than on the level to-slightly rolling crop land that prevails in the
Northern Great Plains.


Table 2. Number and size of farms having tractors, and munmber and size of
farms not having tractors, by type-of-farming areas, Pacific Icorthwest, 1933

Farms having Farms not having:
State and : tractors : tractors All fanrms
type-of-farming: Farms :Crop area: Farms :Crop area: Farms :Cro'p area
area : studied :per farm : studied :per farm : studied :per farm
Dumber : Acres : lumber : Acres : lumber Acres

Oregon
56H 19 1694 22 : 840 : 41 : 1236
56D : 26 : 1207 : 4 : 1132 30 1197
Washington : : :
46 : 17 : 137 : 15 955 32 : 1167
56C : 10 : 2652 : 31 : 907 : 41 : 1332
56A : 25 : 1503 : 8 : 792 : 63 : 1074
56B 21 539 37 57 : 5.9 423
74 9 457 15 : 274 : 24 : 342
Idaho
56Ed 8 787 25 416 33 : 0e
79 : 10 : 1032: b : 275 : 15 : 773
90 : 10 : 790 : 13 : 719 23 : 750
91A : 8 : 705 21 : 33 : 29 : 440
92A : 8 : 480 7 : 276 : 15 : 385
Total or :---:
average : 171 : 11953 : 23. : 613 : 404 : 849











CROPS PRODUCED ON FA, HAVING TRACTORS AND NULEER AM SIZE
OF TRACTORS BY TYPE-CF-FARMING A3EA3


In the Northern Great Plains cr farms where tractors were used, the pro-
portion or the crop area utilized for the production of different crops varied
to a considerable ex ent in, as well as between, different type-of-farmig
areas. The agriculture of the region, however, may be classified as primarily
a cash grain type-of-farming with wheat the major crop. An examination of
tqble : shows that proportionately more of the total crop area was devoted to
wheat and summer fallow in central and western I.iontana ani northeastern
Wyoming than in the other areas studied. In northeastern ,'yominrg about 15
percent of the crop area was devoted to corn. Proceeding eastward a rather
decided -hange in cropping practice began to appear. Instead of alternating
wheat with summer fallow the common practice was to grow wheat in combination
with corn, oats, and barley. In eastern Montana and northwestern and north
central North Dakota, %heat was the principal crop gr own, with moderate
acreages of oats, barley, and corn. These crops -x:A sumner fallow accounted
for most of the crop acreage. In southwestern No0 Dakc-a, western South
Dakota, and nor'thwvestern Iebraska, wheat was still hle dorrinant crop but the
acreage devoted to corn, oats, and barley showed a -onsiderable increase over
that of eastern Montunr.a and north-.;estern and north central North Dakota. In
south central North Dakota and central South Dakota wheat still held first
rank but acreages of oats and barley and especially corn in central South
Dakota were of increasing importance. In eastern North Dakota and South
Dakota and western M.'innesota wheat occupied from 20 to 50 percent of the crop
area with tarley, oats, and corn making up most of the balance. The greatest
concentration of corn acreage was in eastern South Dakota and southwestern
Minnesota. In addition sweet clover, alfalfa, and flax were of considerable
importance in western Minnesota and on some farms potatoes were produced on
a commer,-ial scale.

In the northern Great Plains tractors of 15-to 17-drawbar horsepower
of the ordinary high-:he&-l type were tho most conmor. and were followed in
order by those of 8-to 12-drawbar horsepower. General purpose trac.tors of
e-to 12-dra'.bar horsupo;;er were quite common in those areas of South Dakota
and n.braska ".here ro.- crops wore grov.n to a considerable extent. Tractors
of the track-laying type were reported only in M.ont ina.

In the Pacific Northwest wheat for grain .'was the 1xincipal crop, table
4. It was -altcrrnated with summer fallow. V.rheat, together with sum=.er fallow,
comprised most of the crop acre.,-p co.c-pt in area 56B in eastern 'jiAshington,
where peas vre of considerable importance, .-rea 74 in eastern Wi-shington
wh.-rc o-ts .ere f'own to a considerable extent, a.nd area 92A in southern
Id.--ho where the -crt'ge in alfalfa .was quite -large.

Tractors in the Pacific Northwecst \ in the Northern rreat PI:, ins. B.)c:-.use of tho rolling topography the' track-
laying type of tractor '-s the onre in common usu. Those of 5-dr"--.bar horse-
po.,.-r w.cro the most common size. A few high-wheel tractors were in use,
esprci.lly on f7.aris ,:h=re the topogr.-.phy '.acs fairly level. U.here high-wheel
tractors w.-re used those of lr-dr-'-'-bar horsepower were the most common size.









Table 3. Number and size of farms reporting tractors, and number, size and
type of tractors by type-of-farming areas, INorthern Great
Plains, 1933 l/

State and type: :Average: Crop area per farm
of : Farms :size of: : Row : Other : Surlier :
farming area :studied: farms : Wheat : crops : crops : fallow : Idle : Total
:Number : Acres : Acres : Acres : Acres : Acres : Acres: Acres


Minnesota
22 5A
226
225D
227A
227B
North Dakota
225B
173
174A
168
169
172
170
171
S 136
139
166
South Dakota
181
182A
174B
180
176
179
182B
175
142A-177
Nebraska
184
185
Montana
137A
119B
118
113
114
115
116
87D
88A
120
Wyoming
146A
Total or
average


20 : 374
4 : 460
11 477
15 : 348
10 : 321

8 : 702
16 : 635
34 : 708
22 : 824
21 : 769
22 : 748
24 : 586
34 : 878
50 : 741
16 792
33 : 674

14 : 528
7 : 319
18 : 675
16 : 594
33 : 1273
15 : 2086
14 : 611
20 : 1043
24 : 918

32 : 714
20, : 817

18 : 646
16 : 1187
21 : 895
47 : 1285
44 : 727
6 : 1274
36 : 632
8 : 958
24 : 667
13 : 2095

9 : 1031

835 : 842


113 : 29
71 : 15
142 55
61 : 101
66 : 03

175 : 17
228 : 27
187 : 77
312: 4
411 : 7
239 30
162 : 32
340 : 39
3,29 16
353 : 14
253 : 28

109 : 68
54 : 90
175 : 93
102 : 134
256 : 137
364 : 76
281 : 83
356 : 59
244 : 126

171 : 110
293 : 198

248 36
523 16
227 : 9
424 : 5
284
583: 2
351 : 3
205
218 :
392 : 14

296 : 106

277 : 48


154
210
195
124
104

263
148
183
255
112
S13
87
120
: 96
54
130

219
S 79
164
109
237
153
132
129
S 88

108
168

67
120
58
80
57
47
23
61
34
40

77

114


27:
12
34
1:
'6 :

94
39
18
114
68
16

2
53
67
60

10

1:
3
17


4
1

12
43

25
78
49
202
210
454
123
232
226
206

207

82


2



C

2:
14

1
6


C4
6
1 :
5
9 :

17
81

6 :

5 :
2:

5 :

18
14

14



7 :


10
49
44
6:
8:
11
27
- K
10

4:

13


325
308
404
287
271

551
456
4e5
686
594
426
282
506
503
505
552

412
223
438
350
654
598
496
566
473

415
712

396
744
392
755
557
1094
511
525
478
662

690

534











Table 3. Number and size of farms reporting tractors, and number, size and
bype of tractors by type-of-farming areas, Northsern Great
Pl s inrs, 1033 J1/ Continued

State arid type: :Average: Proportiofl of crop area per farm
of : Farms :size of: : Row : Other : Surer : :
farming area :studied: farms : Wheat : crops : crops : fallow : Idle : Total
:;IIumber : Acres :Percent:Percent:Percent:Percent :Percer Percent


Minnesota

26
22 5D
227A
227B
North Dakota
"25B
173
174A
168
169
172
170
171
136
139
166
South Dakota
181
132A
174B
180
176
179
182B
175
142A-177
Nebraska
184
185
Mont ana
137A
1198
119
113
114
115
116
87D
88A
120
W yomi ng
146A
Total or
ave raae


20 : 374
4 : 460
11 : 477
15 : 348
10 : 321

8 : 702
16 : 635
34 : 708
22 : 824
21 : 769
22 : 748
24 : 586
34 : 878
50 741
16 : 792
33 : 674

14 : 528
319
18 : 675
16 : 594
33 : 1273
15 : 2086
14 : 611
20 : 1043
24 : 918

32 : 714
20 : 817

18 : 646
16 : 1187
21 : 895
47 : 1285
44 : 727
26 : 1274
36 : 632
8 : 958
24 : 667
13 : 2095

29 : 1031

35 : 842


34.8: 8.9
23.0: 4.9
.35.1: 8.7
1.3: 35.2
24.4: 34.3

31.8: 3.1
50.0: 5.9
40.2: 16.6
45.5: 0.6
69.2: 1.2
56.1: 7.0
57.4: 11.3
67.2: 7.7
65.4: 3.2
69.9: 2.8
45.8: 5.1

26.5: 16.5
24.2: 40.4
40.0: 21.2
29.1 38.3
35.1: 21.0
60. '?: 12.7
56.7: 16.7
62.0: 10.4
51.6: 26.6

41.2: 26.5
41.2: 27.8

62.6: 9.1
70.3: 2.2
57.9: 2.3
56.2: 0.7
51.0: -
53.D: 0.2
68.7: 0.6
39.1
',5.6:
59.2: 2.1

4,9: 15.4

51.9: 9.0


47.4
68.2
47.8
43.2
38.4

47.7
32.5
52O3

15.":
1f .3s

31.7
30.?
23.7
19.1
10.7
2b.5:


53.1
35.4
37.5
31.1
36.2
25.6
6.6
22.8
18.6

26.0
23.6

16.9
16.1
14.8
10.6
10.2
4.3
4.5
11.6
7.1
6.1

11.1

21.3


8.3 : 0.6
3.9 : :
8.4
.3 : -
2.2 : 0.7

17.0 : 0.4
8.5 : 3.1
3.9 : -
16.6 : 0.1
9.8 : 1.0 :
3.8 : 1.4 :
: 0.4
0.4 : 1.0
10.5 : 1.8
1.3 : 3.3
10.9 : 14.7

2.4 : 1.5

0.2 : 1.1
0.9 : 0.6
2.6 : 1.1
:0.8

0.7 : 3.2
0.2 : 3.0

2.9 : 3.4
6.0 : 1.4

6.3 : 5.1
10.5 : .9
12.5 : 12.5
26.7 : 5.8
37.7 : 1,1
41.5 : 0.7
24.1 : 2.1
44.2 : 5.1
47.3
31.1 : 1.5

30.0 : 0.6

15.4 : 2.4


100
100
100
100
100

100
100
100
100
100
100
100
100
100
100
CIO

100
100
100
100
100
100
100
100
100

100
100

100
100
100
100
100
100
100
100
100
100

100

100


g









Table 3. Number and size of farms reporting tractors, and number, size, and type
of tractors by type-of-farmnning areas, Northern Great Plains 1933 l/ Continued
: Aver- : Size of tractors (Drawbar horsepower)
State and:tPrms: age : General :
type-of- :stud-:size : purpose : Ordinary high-wheel Track-laying :Tot-
farming :ied : of :9-12: 15 :8-12:15-17.18-21:22-25:26-28:35-40: 20 :25: 39 : 50 :al
area : :farms H.P. :H.P. :H.P. :H.P. :H..P:H.P.:H.2. :H. P. :H.P. H.P.:H.P. :H.P.:
:Num-: :iNur.- ,Num- :NuIm- :Ilum- :IJum Nm- :Num- :Nunm- :Nu.m-NunI Num- :Uum- :Num-


SMinnesota:
225A
226
225D
227A
227B
No. Dak.
225B
173 :
174A
168
169
172
170
171
136
139
166
So. Dak.
181
182A
174B
180
176
179
182B
175 -
:i 142A-177
Nebraska
184
185
Montana
137A
119B
118
113
114
115
116
87D
., 88A
120
Wyoming
146A
Total or
.Veragq


:ber :Acres:b


i/ The number of report


*
20:
4:
11:
15:
10:

8:
16:
34:
22:
21:
22:
24:
34:
50:
16:
33:

14:
7:
18:
16:
33:
15:
14:
20:
24:

32:
20:

18:
16:
21:
47:
44:
26:
36:
8:
24:
13:

29:

835:


:ber :ber :Ler :b


374:
460:
477:
348:
321:

702:
635:
708:
824:
769:
748:
586 :
876:
741:
792:
674:

528:
319:
675:
594:
1273:
2086:
611:
1043:
918:

714:
817:
6,16 :
846:
1197:
895:
1285:
727 :
1274:
632:
958:
667:
2195:

1031:

842:


er ber





3: -
1 -


1 -
4.



- -






3 2
2: -
7.
8.
17
2 -
4 1
6 : -
9

7 .-
5 1

- a -
1-
1 a -
1~





3 -

2 -

86 : 4
'ts show!


12:
2
5
90
6:

4:
4
14:
"K
1:
3:
10:
7:
6
5
5:


3:
5:
3:
12:
7:
6:

13:

5:
5a


1:
1:
2:
2:

3:
2:
2:


4:

173:


8
1:
5
5:
3:

4:
7
13:
14:
15:
13:
9:
20:
34:
9:
23:

5
2
4
9.
7
9:
3:
13:
6

20:
12:

16:
13:
13:
40:
25:
12:
26
6
22:
12:

20:

471


a i


1:
1:
1:
1:


3:

5
rz.,
3:
5:

6:
4:
6:
9:
11:
1:
4

2

2.

6
i:
1:

3
3

1:
5


3:
7:

10:
14
4:
5

4:


3:

I -r7
L5_''


er ber



1 a -

1:



2: -
1 2

1
1: 1






1
1: -
1 : -'












2 5
1: 1
2 -

1: 2

1: -

6 : -
1: -








5
3 : -


1: -
1: -


1: 2
1:
2: 1
2 :5
2: 5
-.:5




4 1

36 : 35


this table as well as in all


:ber:ber:ber :ber


:ber





















.1






.1






a -
a -



a -

* -


- K


- p











1:
- a




























1:
-
























4:


:ber


1:





















2
2
3:





- 8
-8:


succeeding tables


for the Nortlhern Great Plains is somewhat less than that in table 1 for the
reaaan that tractors used solely for belt work as well as a limited number
with incomplete data on one or more items of -osts were omitted.


U


I'


: -:21
4
: 12
S: 18
: 11

- :11
17
: 12
-:37
S: 22
- : 925
S: 22
S: 25
S: 39
S: 57
S: 17
S:34

S: 16
7
S: 19
S: 18
: 48
: -:19
: :15
: 25
- : : 1

: 34
1 ''
121
: 21
- : : 21
: 22
:58
-: 1:52
1 : 3 : 30
: : 41

2S
- : :
- : : 28

- :- : 34
34

1 4 :961


n






IO.

10.

Table 4. Number and size of farms reporting tractors, and number, size, and type
of tractors by type-of-f&r:ning areas, Pacific Northwest, 1933 I/
it-to : :Avor-: Crop ,rea per f:.rm SProportion of cr1p r.re2 per rm
and :;Frra : u-e : : :ium-: : : : : ;:um-: :
type-of-:stud-:size : : Row :0ther:mer : :Tot-: rtow :Other:mer : sTot-


farming: ied
area
Num-
ber
Oregon :
Sbl a 17
SbD r
';sh. :
46 a 13
5bC a

56i a 19
74 ':
Idaho
56E : 3
79 :
o90 10o
91A a 7
92L 7
Total or:
I Iwo L '1


Sof :',heat:crops:crops :fal-:Idl e: al :Vheat:crops:crops:fal-:Idle: aal


;farm


: : :low ;


:crs* cres : .cres:crP:re
:^rs;ce urs;^ esAnBlce


0%:
1)97



:7
: 107:







: 147:

: 131:
:-J~o:
: JlS:
b2 ia
* *1 *i rl


5:

747:
l49o
0
1 2


45:
5C7:
;:2:
364:
34:
L...7.


3:
.2



- S
- U


14 : 747 9
4 :555: -

35 : 2c. 22
3 :1615: -
: k4: -
136 149: -
81 : 17: 6

'53 227: -
b 3: 4b5: 66
3 323 82
50 2?9: -
40 : 213: 2
.r-. r7f. 1 7


:low : t
Per-:Per- : Per-:Per-;Per-SPer-
,:Acres: cent:cent : cent:cent:cent scent
: : |
:465: 47.4: 1.0:51.0: 0.6:100"
1182: 49.5: 3.6:46.9: :100
1 : .: S 5
:1470: 50.3: : 2.4:45.3: 1.5:100
:3114: 48. 1.:51.9: :100
:13: 51.2: .741 110
: 564: 49.0: 0.5 : 24.1: 26.41 :100
:457: 3).9: 2.6 a 17.7:38.5: 1.3:100
S6 5: I s
a 495: .5: 4.6:45.9: 100
:1101: .o.l: 5.7:42.2: 6.O:100ioo
790: 4.3: : .4:40.9:10.4:100
703: 51.: 7.1:41.1: :100
: 49: 47.: : .2:43.6: .4:100
.' 1c'. /.Q n. 1 7 Q..-. n. 1 .ifl f


Vt.te : a sever-: 8
.nd :Farm : -ge a Size of tractor (druwbar horsepower):
type-of-4stud-:size : Ordin.ar.r hi-h-wheel : TrLck-laying : Total
farming: ied : of : 10 : 15 : I- : 20 : Z2 : b: 0 : : 39 5C tractors
.rea : :ft.rm :H.P.:H.P.:HH.P.:H.P.:H.P.:H.P.: H.P.: H.P.: H.P.: H.P.:.
:Numn- : :[hum- :lmun- iu -;m-:Ur-:u- :,'- : Num- -: Uurn- : Ium-: ITaim-: Num-
:ber :Kcres:ber :ber :ber :ber :ber :ber : ber : ber : ber : ber : ber
Oregon: : : : :
5oH : '17 : 20: : : : : : : : 5 : 20
5GD : 5 : 137: :1: : 1 15 2 : 27
'ash. : :
45 13 13% 2 2 S 8 14
c: : : : : : 7 : : 7 14
S : l : 4: : 2 : 1 : : i : 2 : 7 3 2 i
3 12
19: o54:1: 2: 1 312 1 1 a 1
74 : 9 : Ol: .3 5: a : : 2 :1 a : a 11
Idaho : : : : : : : : :
abE 3: a 2: 1
7 a '3 : 1317: 2 : 3 : : : : 1 : 2 : 1 :
; :10 7u: 1 2 : 1 2: 4 1:
^ '5 5 2 i 7
A 7 b1:. l : a a 2 4 7 :
)2 a : r: a 1: a : : : 2: 4 : a
Q'otal or: : : : : :
ver.ge 16 L01: a 23 4 1 3 2 19 71 9 23 a163


SThe number of reports shown in this t,-ble as well bs in .ll succeedizg tables for
'the Pacific l:orthwest is somanewhat less than th.t in table 2, for the reason that
trF-ctors used solely for belt work us well -.s limited number with incomplete
td.ta on one or more items of cost were omitted.









4
11.

CROP AREA PER FARM ON FARMS HAVING TRACTORS, AND NIUMER,
TYPE, .J-D SIZE OF TRACTORS


The number of tractors by size and type according to acreage in crops
on farms reporting tractors, for the Northern Great Plains is given in table 5.
In this region there did not appear to be any decided relationship between
crop acreage per farm and size of tractor. There was some tendency for the
larger tractors, especially those of the track-la.'ing type, to be found on the
larger farms but a greater tendency for those farmers who are operators of
large acreages to use two or more tractors of medium size rather than to in-
vest in the larger tractors. For the most part those farmers with about 400
crop acres or less pi-r farm had only one tractor whereas on quite a large
percentage of the farms with a crop acreage in excess of this more than one
tractor was owned. Fifty-four percent of all tractors enu7merated were on
farms of. 500 crop acres or less, 33 p;-rcunt were on farms of 501 to 1,000
crop acres, and 13 purcant weru on farms of over 1,000 crop acres.

In the Pacific Northwest wh.re farms ur- lar;-or than in the NorthJrn
Great Plains, the si-'e of tractor increas-d somewhat with an increase in crop
acreage, but not uniformly, the tendency bc.inr to use tractors of medium size
regardless of crop a-reagc. (table 6). Twenty-three percent of all tractors
represented were on furms of 500 or less crop acr.s; 30 percent were on farms
of from 501 to 1,000 crop acres; and 47 porc..nt w/ro on farms of over 1,000
crop acres.


KINDS OF TR..CTOR '101R' AND ,'.M,,..L HOUR:. OF TSE PER TRACTOR
BY TYPE-OF-F..RMIG ARE..S


The annual use of tractors in these aruas is influenced largely by the
number of crop acres per f".rrn ad kinds of crops grown.

In a few instances miscl-:ll:n-Jous vork performed with tractor power may
have been overlooked in recording th,. work done with tractors on these farms,
but for the most part the kinds and amounts of work perforri:d with trActor
power are accounted for in v:ork of' diff.zr--nt kinds by typo-of-f a ring _retas
as shown in tables 7 and 8.

A limited amount of tr.ictor work in tho ilorth6rn Cr: .t Pl'-ins consisted
of corn shredding, corn shelling, and silo filling. Wvhn this work occurred
it w:as recorded as "Corn harvest". Tractors in this region were used almost
universally for prpnration of soodbed, _nd to a l.rg, extent, for planting of
crops. In addition tractors of the gener:-.l )urposj.- type were used quite ex-
tensively for cultivation of ro,7 crops. Thu hurvcst -.,ork was influenced
largely by the method of h.rvustinm th., crop. In ;wostorn Minnesot:a .nd inf
the eastern ".nd central areas of I:orth DP .ot aind South Dakota the work of
tractors, except thxt of prpairution of se.db.d .nd pl-ntinL_, was mainly that
of harvesting grain with 'i binder and thr,.shing with a stationary thresheir,
and corn harvesting, wh-.,re:ns in the oth.-r tyop-s of farming 1.r,_-,s, where
harvesting with a combine "ias -a comarmon method und little corn was gro-in, the
use of the tractor except for pruharvcst work wvs lr.rgcly for harvesting and







-.able 5. Distribution of tractors of different sizes and tynes according to crop acres per farm, Nlorthern
Great Plains, 1933
Size (drawbar horsepower)
All : General : :
Size group :tractor : purpose : Ordinary hiDh-wheel : Tr-ck-lr.ying : Total
(crop acres) : farms :9-12 : 15 :8-12:15-17:19-21:22-25:26-28:35-40: *0 : 25 : 33 : 50 : Tractors
::H.P. ;H.P. :H.P.:H.P.a:H.P. :H.P. :H.P. :H.P. :H.P. :H.P. : H.P. : H.P. :
:-um- : !4.urn- : urnum- :Num-:r?'um- :!'un- :NIur- :Nun- :;I1um- :IihLu- :I 'Pm- : IIurn- : Nun- : Iun-
Sber :ber :ber :ber :ber :bter :ber :ber :ber :ber :ber : ber : ber : ber


50 and less
51 to i10
1j1 to 159
151 to 200
2D1 to 250
251 to 300
301 to 350
351 to 400
401 to 450
451 to 500
501 to 550
551 to 60JO
5301 to 650
651 to 700
701 to 750
751 to 800
801 to 350
851 to 900
301 to 950
951 to 1000
1001 to 110O
1101 to 1200
1201 t3 1300
1301 to 1400
1401 to 1500
1501 to 1600
1601 to 1700
1701 to 1800
1801 to 100
1301 to 2000
2001 to 2200
2201 to 2400
2401 to 2600
2601 to 2800
2801 to 3000
3001 and over
fln4 a I


* 1
S 4
S 36
S 47
S 66
* 96
S 76
S 71
53
S 51
S 54
43
S 41
S 38
S 17
S 17
S 13
S 23
S 8
S 13
S 13
S 6
5
S 8
S 5
S 5
2
S 6
1
S 1
S 4
S 5
1
: 1
S 2
: 2
RA


3
2
7:
18:
9:
5:1
4
3 2
11:
4
4
4
2

2
1:
.1:
2




3




1:




* 86 U
884 4


1:
4:
17:
22:
21:
32:
12:
9:
10:
9:
9:
6:

4
1


3

3
2


1:

1:










173:


15 2
20 : 4
35 8
40 5
45 : 11
43 : 12
28 : 10
27 : 7
32 8
29 : 8
23 :10
S0: 4
6 .
13 1
9 2
15 : 7
6 2
4 2
10 2
7 3
6: 3
6 1
2 :
2
1: 1
5:

: 1
2 2
5 4

3
S 7
2 1
471 : 137


:1
2 1
1.
1: 1
1: 3
5 2
3 2
3
1: 3
3 1
3
1: 3
2 1
1: 1
1
2 1
3 1
: 1
2 1
2 3
2
3
2
: 1








36: 35


1













1











a2


1


1



: 1




1










4


1:





**
:











2






1

1
1
:


1


1 :
1:



1:
4:


1 :







1 :


.."" i.. .. &. :..... ....... -... ........................................ ................................................... ... .........


n


s


*


1
4
37
48
72
98
78
72
56
56
65
50
49
46
21
18
17
28
10
14
19
11
12
13
8
9
4
7
1
2
7
10
1
3
8
6
961 _








13.

Table 6. Distribution of tractors of different sizes and types according to
crop acres per farm, Pacific Northwest, 1933

: : Size (Drawbar horsepower)
Size group : All : Ordinary high-wheel : Track-laying : Total
(Crop acres) :tractor: 10 : 15 : 18 : 20 : 22 : 26 : 20 : 25 : 39 : 50 :tractors


: farms


200 and less
201 250
251 300
301 350
351 400
401 450
451 500
501 550
551 600
601 650
651 700
701 750
S751 800
S801 850
851 900
901 95C
951 1000
1001 1100
1101 1200
1201 1300
1301 1400
1401- 1500
1501 1600
1601 1700
1701 1800
1801 1900
1901 2000
2001 2200
2201 2400
.2401 2600
S2601 2800
I.'2801 3000
i 3001 and over:
Total


Num-
ber


5
1
7
6
3
7
7
3
4
6
10






9
3
8
5
3
2
3
3
4
6
1
9
2
3
5
2
9
2
1
8
4
1
3
146


:H.P.:H.P. :H.P. :H.P.:H.P.:H.P.:H.P.:H.P.:H.P. :H.P.:
:Num- :Num- :N- :Nu- : Num-: Num-:Num- :Num- :Num- :Num- : Num- :


:ber

:1
.1
:2
2



2


8:


ber

1

1
2

: 1
:1



:2
:1


:1


1:
3
1:
4


3





1:



23


:ber :ber








:1



1

1
1


:ber















:1


4 1









"4:1


ber



: 1











:1


1:
1:














3:


2


:ber

: 1

:1
2
: 1
2
2

:1
: 1
: 3
: 1
:1
:1


1:






1:










19


ber

2

2
* 1

:1
3
5 3
2
3
5
.2
1
3
1
.2


1 :
2
2
2
2

2
3:



5
10
2:

5:
2 :
n

71


:ber :ber






1
1





1 1

1 1
1


i:
13
2

3

1: 1
2
2
:1

:1
1 :2
:2
1:
:4
9 23


Num-
ber

5
1


3
f
n
4
4
6
10
3
8
5
3
2
3
3
4
8
2
9
3
3
5
2
11
2
1
9
4
1
11
163





14.

Table 7. Estimated normal annual hours of use of tractors on work of different
kinds by type-of-farming areas, INorthern Great Plains

Home V7ork
:Pre- : : : :
State : : : :pare: : ::
and : :Far.s :Crop rplant:Corn- : : :Cprn : Hay :Potato:
type-of-:Tract-:having:area : and :bine :Head :Bind :Thresh:har- :aher- : bar- :tot-
faming : ors :tr,'ct-:per :aculti-:grain:grain:grain:gra.in :vest :vest : vest :al
areas : :ors farn : vate: : : : : : ::
:Number:Number:Acres:Hours:Hours:Hours :Hours :Hours :Hours:Hours:Hours :Bms


Minnesota:
225A : 21
226 4
225D : 12
27A : 18
227B : 11
IMo. Dak.
225B 11: I
173 : 17
174A : 37
168 22
169 : 25
172 : 22
170 : 25
171 : 39
136 : 57
139 17
166 : 34
So. Dak.
181 : 16
182A : 7
174B : 19
180 : 18
176 : 48
179 : 19
182B : 15
175 : 25
14&,.-177: 31
INebraska:
184 : 34
185 : 27
Mont ana
137A : 21
119B : 21
118 : 22
113 : 58
114 : 52
115 : 30
116 : 1
87D : 8
88A : 28
120 15
W-aor.i n7g
146A : 34
Total or:
average: 961


20
4
11
15
10

8:
16
34
2 :
21
22
24
34
50
16
33

14

18
16
33
15
14
20
24

32
20

18
16
21
,47
44


325: 213:
308: 249:
404: 248:
287: ?52:
271: 259:

551 301
456: 352:
465: 292:
686: 461:
594: 235:
425: 252:
282: 149:
506: 237:
503: 293:
505: 329:
552: 292:

412: 242:
256: 101:
438: 349:
350: 267:
654: 288:
598: 242:
496: 197:
566: 244:
473: 248:

415: 245:
712: 354:

396: 221:
7q4: 390:
392: 271:
755: 371:
557 3 70:


5

26



31
7
6
14
7
17

59
50:
TO
70
9:

17
4
2

24
71
47
40
51

54
83

46
86
35
75 b
71


2A 1094: 497: 124
6 : 50?: 221 58
8 : 525: 332: 11
24 : 478 35,-: 56
13 : 662: 332: 111

29 : 690: 554: 99

835 : 534: 303: 45


27
4
2
3

2





1:
17


10







292

9








2:

S5:


12 : 6
30 : 12
10 : 13
30 : 13
42 : 11

45 : 23
47 : 26
17 : 35
16 : 25
47 : 51
9 : 21
3 : 29
1 : 38
12 : 15
4 : 21
37 : 32

53 : 32
19 : 1i
57 : 34
22 : 40
56 : 37
34 1$
71 : 49
9 : 18
15 : 10

13 : 14
18 : 10

: 26
2 6
5 9
2 : 10
3 3
5
: 2
7 : 40
2 5


4 2

17 : 19


a.


2

2
18
14



18


5
9:
8:
1:



: 15
4
8
.12
27
16
22
6:
10

-T
9:
: F

















Z:

7

6


9:






1:
4
1:



- :







6

8:

9:
75


3



















3:


:247
:291
:299
:313
:326

:401
:436
:369
:516
:340
:331
:194
:345
:374
:424
:372

:365
:139
:458
:34a2
:458
:456
:386
:327
:337

:332
:521

:293
:506
:320
:467
:447
:626
:281
:390
:41?7
:448 I

:668

:397




r I


TableLEI.

Table 7. Estimated normal annual hours of use of tractors on work of different
kinds by type-of-fanninj areas, Northern Great Plains -
Continued
State : : : :__________ Cust or. work:
and :Farms :Crop : :. : : :
type-of- :Tractors having:area :Prepare: : : : : :Total
farming : :tract-:per : and :Comb ine:Bind :Thresh: Corn :Total :work
areas : ors farm : plant : rain :grain:grain :harvest: :
Number :Niucbor:Acrcs: Hours : l'ours :lours:1!ours : Hours :Hours:Hours


'innesctj:
2B5A
: 226
225D
227A
227B
No. Dak.
225B
173
174A
168
169
172
170
171
136
139
166
So. Dak.
181
182A
174B
180
176
179
182B1
175
142A-177:
Nebraska:
184
185
Montana
137A
119B:
118
113
114
115
116
87D
88A
120
SWyoming
146A
Total or:
average:


21 : 20
4 4
12 : 11
18 : 15
11 10

11 : 8
17 : 16
37 : 34
22 : 22
25 : 21
22 : 22
25 : 24
39 : 34
57 : 50
17 : 16
34 : 33

16 : 14
7: 7
19 : 18
18 : 16
48 : 3
19 : 15
15 : 14
25 : 20
31 : 24

34 : 32
27 : 20

21 : 18
21 : 16
22 : 21
58 : 47
52 : 44
30 : 26
41 : 36
8 8
28 : 24
15 : 13

34 : 29

961 : 835


325:
308:
404:
287:
271:

551:
456:
S465:
686:
594:
425:
282:
506:
b03:
505:
552:

412:
236:
438:
350:
654:
598:
496:
566:
473:

415:
712:

396:
744:
392:
755:
557:
1094:
509:
5 2 5 :
478:
662:

690:

534:


1*

1~

1~
6








6

4
3:

5












1~






1~


.1 -





e





2 9

6:-
1:-



1-
1 : -


1 -





8 3

9 : -
2

6:
a : -



.3 : -


1:-
L3 -



3:-


2:-
3:


7



16
22


16
4:

1:

2



2

30


6:
3:










10





2






3:


5












12


18 : 2C5
: 291
: 29
16 : 329
22 : 348

: 401
21 : 457
- 9
574
: 516
2 : 342
11 : 342
5 : 197
12 : 557
1 : 375
: 425
2 : 374

51 : 416
: 139
6 : 464
7 : 349
9 : 467
10 : 466
3 : 389
1 : 328
16 : 353

9 : 341
2 : 523

6 : 99
10 : 516
: 320
2 : 469
15 460
626
4 : 285
: 390
: 417
3 : 451

2 : 670

7 : 404












Thble P. Estimated normal -innu.l hours of use of tr-ctors on work of different kinds by type-of-farming are-.s,
Pacific Northwest

--:- !lHome work Custom work

State and : Crop : Prepnre : : : : : :
type-of- :Tractors: Farms : ire? : plint : : : :Totcl:Prep-tre: : :Totl: Tot-1
farming having : per : ,nd :Co.rbine:Bind :Thresh: : -.nd :Combine:Thresh: : work
area : :tractors: frrn :cultivnte: grain :grTin:gr:in : : plant : grujin :groin :
[ lumber : lumberr :Acres : Ho.rs : Hours :Hours:Hours :?'Jirs: Hours : Hours :Hoars :K;ours: Hoirs


Oregon
56H
56D

"I. sh i nfton
46
56C
56A
5CB
74

Idaho
56E
79
90
91A
92A

Totnl or
qver-gge


17 : 1465
25 : 1182


13 : 1470
9 : 3114
18 : 1338
13 : 564
9 : 457


495
1101
730
703
4 9


S ... --116 -


598
GO6 9


423
164
376
415
303


471
444
385
464
294


,Ir,


l1.6u : -S" m


154
147


152
150
109
111
62


92
98
124t
112
61


123


2 :


1 :


1:


D
3:











1:


752
758


576
314
485
535
380


563
542
509
576
355


560


19







5

143


9:


14


3
2
25
35
18


17
27

9
61


16


S14


4 : 7
2
S44
35
S18


S17 :
S27
S5
S 9:
204


25


752
772


583
316
529
570
398


580
569
514
585
559


585


25


163 1.16


a


:-::.. mmommommm.. ..; ......... ...........






17.


threshing grain with a combine. CustQm work was of minor importance, being
mainly harvesting and threshing grain, either with the combined harvester-
thresher or harvesting with a binder and threshing with a stationary
thresher. The total work for tractors of all sizes *nountr-.a to an annual
average of 404 hours per tractor per year of vdiich 98 percent was home work
and 2 percent custom work.

The work of tractors in the Pacific Northwest was almost entirely that
of preparation of seedbed and planting of grain cro.is and harvesting with a
combined harvester-thresher. The total work for tractors of all sizes
amounted to an average of 585 hours per tractor per year of which 96 percent
was home work and 4 percent was custom work.


ANIlMAL. HOURS OF USE OF TRACTORS OF
DIFFERENT TYPES ATD SIZES


In the Northern Great Plains the work of general purpose tractors
(table 9) amounted to an average of 458 hours per tractor per year; for or-
dinary high-wheel tractors it was 392 hours and for track-laying tractors,
760 hours. The greater annual use of the general purpose tractor as compared
with the ordinary high-wh1l tractor was ri-iinly accoui.ntd for by its use in
cultivating row crops. The large numbber of days of annual use of the track-
laying tractor was mainly because of the fact that this t:j,,c of tractor was
used almost exclusively on fariis of the lar;-st zrcp acri-agT-s.


Table 9. Estimated norral annual hours of use of tractors of different
tyj.s and sizes, Northern Qr-.t Plains


Type of tractor


General purpose


Ordinary high-iL


Size of tractor
(Dravjbar hors-poow;,r)


9 12
115


Avt. rL cre






eel1


S Annual use
of
* tracto-
S Hours
450
635

458


8 -12 : 329
15- 17 407
18- 21 383
22 25 484
26- 28 439
35- 40 443


Ave rge e ___:

20 317
25 584
Track-laying 39 1277
50 11 24

__________ Ave rage ::760









18.

In the Pacific Northwest the wcrk of ordinary high-wheel tractors
amounted to an average of 373 hours per tractor per year; and for track-laying
tractors it was 657 hours per tractor per year, table 10. As in the Northern
Great Plains, the lesser ar-ount of work done annually by high-wheel tractors
than with tr-ck-laying tractors was largely because of the fact that the
high-wheel tractor was used principally on the s.all to medium sized farms.


Table 10. Estimated normal annual hours of use of tractors
types and sizes, Pacific Northwest


of different


Annual use
Type of tractor : Size of tractor of
:(Drawbar horsepower) : tractor
Hours

10 186
15 402
18 515
Ordinary high-wheel 20 803
S22 410
26 224

Average :: 373

20 520
5 671
Track-laying 3 715
50 703

Average .": ,57


The distribution of tractors of different types and sizes in the North-
ern Great Plains by hours used annually (table 11) shows that 71 percent were
used 500 hours or less; 19 percent were used from 501 to 750 hours; whereas
only 10 percent were used over 7.-30 hours per -ear. In the Pacific Northwest
58 percent of the high-wheel tractors were "-used 400 hours or less; L7 percent
were used frcla 401 to r00 hours aS-,i only 5 parent were used .ore than 800
hours annually. Thirty-one percent of the track-laying traitors were used 400
hours or less; 45 percent were used 401 to 800 hours and 26 percent were
used more than 800 hours annually, table 12.


COST OF USING TR AC TORS

In presentin- this information the various items of cost arc treated
separately and reported in quantity factors wherever possible, since costs
expr,-ssid as money units are subject to -onsiderablo change especially during
periods of wide prile fluctuations. The item-'.s hi:h have? been considered as
operating cost are fuels, lubricants, repairs, depreciation, and interest.




Hours
used
annual 1 ly


:ber
Under 50 : 2
51 to 100 : 5
101 to 150 2
151 to 200 4
201 to 25j0 : b
f'51 to 0oo 7
530oi to 350 9
j51 to 400 : 10
401 to 450 : 9
451 to 500 2
501 to 550 5
551 to 6oo : l
6oi to 650 :
651 to 700 5
701 to 750 : 1
51 to 00 3
o1 to 850 1
351 to 900 : 3
ld to 950 : 1
951 to 1000 : i
1001 to 1050 :
1051 to 1100 :
1101 to 1150 : 1
1151 to 1200 :
1201 to 1250 :
1251 to 1500 : 1
1301 to 1550
1351 to 1400 :
1401 to 1450
151 to 1500 :
1501 and over :


^n t.n 1


: General :
Purpose : Ordinary high-wheel:
:9-12: 15 :8-12 :15-17:f-'-2I-f:22-25:2o-2 : 35-40:


:ber







: 1
:1


:1












: 1


- p


:ber

: 1
0
: 1
S3)



3)
: 1
: !a
: 1


;H.P. :H.P. :;T.I
Kum- um- dun


.1 ,17~


:H.P. :H.P. :H.P.


1"7 :


7n ..v I1. -,


Track-laying


2
H.
be;u
be


2 : : :


3
H.

be


5
H.
be::u
be


I : 4 :


. :H.P.
n- :t.Ln-
S:ber
4 3
.4 : 20
.6 25
52 :. 48
-7 t5
1: 44
.7 42
7 44
9 : 39
.0 : 27
.0 : 25
3 : 23
6 : 27
6 : 12
1 : 11ii
5 7
1: 7
1 7
: 3
2 4
: 2
1 1
: 2


: 1
3
: 1


961


* Ulil-
: De r1
:ber
: 2
I'
S14
: 12
S13
1l
S10
*
7
S12
: 2
3
3
S1
3
S4


S1
3
: 1
: 1

: 1
lS


: '; um,-
:ber


3
. 5

2
: 4

3
5
7
: 3
2 1
: 1
: 1

2
; 2
: 1


: 1




: 1


:,um-
:ber
S2

1
2
: 2
: 1
3
4
3
3
4
: 1

1

l
: 1
:.. 1
: 2
: 1


: 1




a
-




S


:H.P. :
M um- :
:ber


















* 0
:




: 1 :




: 1
*

:


: 1


20
H.P.

ber :



1

1











12

1:
S


)- 0
i-:
'r

1:

1
1:


1:



2


1




1:


i9
P. :

r


























1


0
p

r












1





1:








1:
1:


Total
tractors


R um-
ber
13
49
59
102
87
7&
92
78
70
5b
59
34<
435
30
14
20

13'*

9,
T
4
5
1
4
3
1
1

3









20.

Table 12. Distribution of tractors of different types and sizes by hours, used
annually, Pacific Northwest, 1933

S ize (Drawbar horsepower)
Hours used : Ordinary high-wheel : Track-laying:
annually : 10 : 15 : 18 : 20 : 22 : 26 : 20 : 25 : 39 : 50 : Total
:H.P.: H.P.: H.P.: H.P.: H.P.: H.P.: H.P.: H.P.: H.P.: H.P.:tractors
Num-: Num-: N um-: Num-: Num- : Num-: Num-: Num-: Num-: Num-: Num-
: ber : ber : ber : ber : ber : ber : ber : ber : ber : ber : ber


* .. .


50 and less
51 100
101 150
151 200
201 250
251 300
301 350
351 400
401 450
451 500
501 550
551 600
601 650
651 700
701 750
'-51 800
801 850
851 900
901 950
951 1000
1001 1050
1051 1100
1101 1150
1151 1200
1201.- 1250
1251 1300
1501 1350
1351 1400
1401 1450
1451 1500DO
1501 and ove]
Total


1 : 1
1
1
3
: 1 .


3 1
1 .: 5
1 4
1
1 :1:

2
1 :1:

2
3
.1:
:1

:1










S:
: 1






:8 2


2 :1
: : 1
1.
:1
1-


:1
:1
:1


1












3 : 2 : 19


3
:1:1


3:
:2 :
:6:
:41 1


:3:
5
4

:3
:86 1
4 1
2



2



:2
:3 1



71 : 1
: 8 : 1
: 4 :
: 1
: 2 :
: 2 :
S 1

: 1 :

: 2 :
: 3 : 1






: 6 : 1
:71 : 9


5
7
6
10
7
10
S 5
12
10
5
11
9
4
6
11
11
6
S 2
2
6
2
1

2
4






9
1.J5


2


2
: .1-

:2






:1
4
3


4
:1










:1
23


1:

1:


1:
11:
















4 :1









21.


The quantities and cost of these items per tractor per year are averages which
were computed by dividing the total expense for a given item of cost by the
total number of tractors included in the study. The yearly cost divided by
the total number of 10-hour days a tractor was used during the year is the
average cost of operation per day. The hours of work per tractor per year
represents the normal rather than the hours actually used in ]933.

Tables 14 to 17 give the itemized cost of operating tractors of dif-
ferent types anid sizes in the northern Great Plains and tables 19 to 22
present corresponding data for the Pacific Northwest. The quantities of
fuel and cylinder oil shown in tables 13 and 18 are based on th,- normal
annual consumption rather than on the quantities used in 1953. The cost of
fuel and lubricants shown in tables 14 and 19 is based on the normal annual
consumption of fuel, oils, and grease at prevailing 193;: prices.

The cash repairs shown in tables 15 and 20 represent normal tractor
repair charges rather than actual expenditures in 1933. The cost of hired and
other labor on tractor repairs reflects the normal annual days of labor at
prevailing 1935 rates for labor.

Depreciation as shown in tables 16 and 21 was computed by dividing thu
first cost of the tractor by the estimated years of useful life. Interest
shown in these tables was charged at 6 percent of one-half of the average
first cost of the tractor.

For the ordinary high-wheel tractor in the INorthern Great Plains,, fuel
and lubricants constitutcud 44.3 purient of th.j total annual cost of operating
tractors; cash repairs, 10.4 percent; hired labor on r-psirs, 0.1 percent;
other labor, 1.7 percent; depreciation, 33.3 percent; and interest, 10.2
percent.

In the Pacific Northwest thu pcrccntage' distribution of the totul cost
for track-laying tractors was --s follows: FuAl and lubric-nts, 47.3 percent;
cash repairs, 11.1 percent; hired labor, 0.3 percent; oth-.r labor, 1.5
percent; depreciation, 30.4 perci-nt; and interest 9.4 percFnt.

Trantor operators who hav-. no inde.btedness on their tr'-'.ctors may con-
sider fuel and lubric'.nts and cash rcpxirs including hired labor on rep-irs
as cash costs and opr.-ator and fairily l1 bor on repairs, dspr tciition, and
interest as non-cash costs. For tr:%ctor operators ;ho have. little if any
equity in their tr--.ctors the c.sh outl-', vill include practically all
expense except opera-tor r nd family lc.bor on repairs.








22.

Table 13. Motor fuels and cylinder oil consumed by tractors of different types
and sizes, Northern Great Plains _1/


GENERAL PURPOSE TRACTORS
S: Gaso- :Distil-: Kero- : Total
Saline _/:late 2/:sene 2/: motor fuel 2/ : Cylinder oil
SPer : Per
Size of : Per Per : Per : Per :tractor : Per :tractor
tractor :Tractors:tractor:tractor:tractor:tractor:per 10- :tractor:per 10-
(drawbar : : per : per : per : per :hour day: per :hour day
horsepower): : year : year : year : year : of use : year : of use
Number :Gallons :Gallrns:Gallons:Gallons:Gallons :Gallons:Gallons

9 12 : 86 : 157 : 611 : 76 : 844 : 18.8 : 27.6 : .61
15 4 : 40 : 1226 : :1266 : 19.9 : 40.5 : .64
Total or : : :
average : 90 : 152 : 638 : 73 : 863 : 18.8 : 28.2 : .61

ORDINARY HIGH-WHEEL TRACTORS
jnrz
8- 12 : 173 : 225 381 : 46 : 652 : 19.8 : 25.2 .71
15- 17 : 471 347 : 541 : 2 : 890 : 21.9 : 40.4 : .99
18 21 : 137 : 640 : 573 : 8 : 1221 : 31.9 : 38.3 : 1.00
22- 25 : 36 : 719 : 944 : : 1663 34.4 : 57.2 : 1.18
26- 28 : 5 : 926 : 694 : : 1620 : 35-.9 : 50.5 : 1.15
35- 40 : 2 : 770 : 1002 : : 1772 : 40.0 : 53.2 : 1.20
Total or : :
average : 854 : 410 : 538 : 12 : 959 : 24.5 : 37.7 : .96

TRACK-LAYING TRACTORS
20 4 1192 : 524 : : 1716 : 27.8 : 59.8 .97
25 : 8 : 1132 : 995 : : 2127 : 36.4 : 70.2 1.20
39 1 5300 : :5300 : 41.5 95.8 .75
50 4 : 6728: : : 6728 : 59.9 : 149.0 : 1.33
Total or : :
average : 17 : 2708 : 592: : 3300 : 40.2 : 87.8 : 1.16


I/ Based on the normal


consumption of motor fuels and cylirLer oil.


2/ Average of all tractors.









23.

able 14. Cost of motor fuels and lubricants consumed by tractors of different
types and sizes, Northern Great Plains 1/

GENERAL PURPOSE TRACTORS
Gaso- :Distil-: Kero- : Total Other oils
:line 2/:late 2/:sene 2/: motor fuels 2/: Cylinder oil and grease
ize of : : : Per : : Per : : Per
tractor : Per : er : Per : Per :tractor : Per :tractor : Per :tractor
(drawbar:tractor:tractor:tractor:tractor:per 10- :tractor:per 10- :tractor:per 10-
hors6e- : per : per : per : per :hour day: per :hour day: per :hour day
power : year : year : year : year : of use : year : of use : year : of use
:Dollars:Dollars:Dollars:Dollars:Dollars :Dollars:Dollars :Dollars:Dollars

9 12 : 26.79 : 53.15 : 7.A5 : 87.59 : 1.95 : 16.39 : .36 : 9.00 : .20
15 : 7.04 :102.12 : :109.16 : 1.72 : 23.67 : .37 : 15.24 : .24
Average : 25.91 : 55.33 : 7.51 : 88.55 : 1.93 : 16.71 : .36 : 9.27 : .20


ORDINARY HIGH-VTEEL TRACTORS
8 12 : 33.50 : 34.49 : 4.98 : 72.97 : 2.22 : 13.59 : .41 : 6.58 : .20
15 17 : 56.04 70.55 : 5.16 :131.75 : 3.24 : 25.28 : .62 : 9.77 : .24
18 21 :100.52 : 51.24 : .71 :152.47 : 3.98 : 2.68 : .62 : 9.58 .25
22 25 :114.54 : 90.12 : :204.66 : 4.23 : 34.87 : .72 : 12.10 : .25
26 28 :151.02 : 63.12 : :214.14 : 4.84 : 33.38 : .76 : 11.41 : .26
35 40 :122.00 : 80.10 : :202.10 : 4.56 : 34.58 : .78 : 12.40 .28
Average : 65.12 : 60.69 : .97 :129.78 : 3.31 : 23.1 : .60 : 9.26 : .24


TRACK-LAYI NG TRACTORS
20 : 142.46 : 36.68 : : 179.14 : 2.90 : 37.62 : .61 : 61.70 : 1.00
25 : 184.84 : 75.64 : : 260.48 : 4.47 : 43.17 : .74 : 64.24 : 1.10
39 : 848.00 : : : 848.00 : 6.64 : 71.84 : .56 :146.86 : 1.15
50 :_1I01.31.: : 1101. : 9e.80 :107.59 : .96 :146.12 : 1.30
Average: 429.52 : 44.22 : :.473.74 : 6.23 : b8.71 : .77 : 87.77 : 1.15


prices paid in


Average of all tractors.


I/ Based on the normal consumption of fuel, oil, and grease, at
1933.











Table 15. Cost of cash repairs and lcbor on repairs for tractors of different
types and sizes, Northern Great Plains


GENERAL PURPOSE TRACTORS
: :Farm labor on repairs
:Cash repairs 1/:Owner saol family: Hired : Coat 3
Size of : Per : : Per : Per : Per
tractor :Tractors:Reports :tractor:Reports :tractor:Reports:tractor:tractor
(drawbar : : per : : per : : per : per
horsepower):: : year :y. r '2/: :year 2/:year 2/
Number Number :Dollars:lumber : Days Number : Days :Dollars

9 12 : 86 86 : 22.83: 80 : 2.7 : 17 : .34 : 5.69
15 4 4 :31.25: 4 : 3.0 : : : 6.00
Total or : : : :
average : 90 : 90 23.20: 84 : 2.7 : 17 : .34 : 5.70


ORDINARY HIGH-"TEEL TRACTORS
3 12 : 173 : 175 : 21.51: 155 : 2.6 : 27 : .30 : 5.32
15 17 : 471 : 471 : 41.62: 444 : 3.2 : 75 : .29 : 6.91
18 21 : 137 : 137 : 42.43: 129 : 34.7 : 18 : .26 : 7.64
22 25 : 36 : 36 : 44.36: 35 : 3.4 : 3 : .14 : 6.94
26 : 35 : 35 : 48.86: 34 : 3.7 : 3 : .14 7.49
35 40 : 2 : 2 : 20.00: 2 : 3.5 : : : 6.50
Total or : : :
average : 854 : 854 : 38.04: 799 : 3.2 : 126 : .27 : 6.73


TRACK-LAYING TRACTORS
20 : 4 : 4 : 46.25: 4 : 3.5 1 : .25 : 7.12
25 : 8 : 8 : 80.00: 8 : 5.6 : 1 : .20 15.06
39 1 : ] ::200.00: 1 : 15.0 : : :37.50
50 4 : 4 : 75.00: 4 :11.0 : : : 26.25
Total or : : : :
average : 17 : 17 : 77.94: 17 : 7.5 : 2 : .16 : 17.14

_!/ normal cash outlay for new parts and skilled labor on repairs in machine
shops.

2/ Average of all tractors.

3/ Represents the value of the normal time spent on tractor repair work at
1:35 rates for labor.


24.







C.1?.


Table 16. Average first cost, age- in 1933, years of useful life, depreciation
and interest charges for tractors of different types and sizes,
Northern Great PlajilLs


GC}ITERAL PURPOSE TEACTORS
Size of Depreciation Interest
tractor : : Average : Average : per : per
(drawbar : Tractors : first : age : Useful : tractor tractor
horsepower): : cast : in 1933 : life : per year 1/ per year 2/
: Number. Dollars : Years : Years Dollars Dollars

9 12 : 86 : 897 : 4.7 : 10.1 88.81 26.90
15 : 4 :10414 1.5 : 8.2 : 127.72 : 31.31
Total or
avera ge 90 : 904 : 4.6 : 10.0 : 90.40 : 217.10


ORDINARY HTGJI-VEL TRACTCR3 .
8 12 : 173 : 86 : 6.1 : 10.6 : 73.86 : 25.08
15 17 : 471 1273 ; 5.8 10.3 123.59 : 38.20
18 21. : 137 1440 : 5.2 : 9.9 : 145.45 : 43.19
22 25. : 36 : 1389 : 4.6 : 8.8 : 157.84 : 41.68
26 28 : 35 : 1857 : 5.1 : 10.0 : 185.70 : 55.71
35 40. : 2 : 2688 : 3.5 : 10.0 : 268.80 : 80.62
Total or
average : 854 : 1243 : 5.7 : 10.2 : 121.86 : 37.21


TRAC'-LiYTIIG, TR .CTOS
20 : 4 1711 : 4.8 : 10.5 : 162.95 : jl.34
25 : 8 : 2844 : 4.8 : 8.9 : 519.55 65.JI
C_. ,, I- C0 ,0 0,
39 : 1 : 3000 : 1.0 300.0 : 0.00
50 4 : 4921 : 4. : 12:.0 : 410.08 : l7.64
Total or
average : 17 : 3075 : 4.8 : 10.1 : 304.46 : 22.26


/ Computed by dividing the first cost of the tr.ator
of useful life.


by the estimated years


2/ Charged at the rate of 6 percent of one-half of the first co.-t of th.
I tractor.






2 6.


Table 17. Total cost per year and per lO-hour day of use for tractors of
different types and sizes, Northern Great Plains, 1933 -/


GEI.ERL PURPOSE TRACTORS
Size of :::Cost
tractor : Annual : Per year Per 10-hour day of use
(drawbar : Traetors : use of :Excluding:Including:Excluding:Including
horsepower) : : tractor interestt :interest :interest :interest
Number Hours : Dollars Dollars Dollars : Dollars

9- 12 : 86 450 230.31 257.21 : 5.12 : 5.72
15 4 : 635 : 312.64 : 343.95 4.92 : 5.42
Total or
average : 90 : 458 233.83 260.93 5.11 : 5.70


SORDI"UARY HIGH-WHEEL TRACTORS
8- 12 173 229 1 8.83 223.91 6.04 6.81
15- 17 : 471 -07 : 338.92 : 377.12 : 8.33 : 9.27
18- 21 137 383 381.25 : 424.44 9.95 : 11.08
22 25 : 36 484 : 460.77 : 502.45 9.52 10.38
26- 28 : 35 439 500.98 556.69 : 11.41 12.68
35 40 : 2 4,43 54-.38 : 625.00 : 12.29 14.11
Total or -:::
average : 854 : 392 329.08 : 366.39 : .39 69.35


20
25
39
50
Total or
average


TRACK-
617 :
584 :
1277 :
1124 :


17 :


LA:YIN, TRACTORS
49'-..78 : 546.12
782.50 : 867.81
1604.2n : 1694.20
186C...5 : 2013.99


760 : 101..76 : 1112.02 : 13.42


I/ Eased on normal consumption of fuel, nils, and grease at prices paid in
1933, normal outlay for cash repairs, normal days of labor on repairs,
at 1933 rates for labor. Depreciation was computed by dividing the first
cost of the tractor by the estimated years of useful life. Interest
was chargud at 6 percent of ond-half of tho average; first cost of the
tractor.


8.02
13.40
12.56
16.60


8.85
14.86
13.27
17.92

14.63







I. *


STable 18. Motor fuels and cylinder oil consumed by tractors of different types
and sizes, Pacific ,ortlwe'zt ]/


~~________________pORLI'r :OPIF" HIGH-VHEaL WRACTOS-S__________
:Gasoline 2/Distillate 2/:Total motor fuel 2A Cylinder oil
: : Per : : er
Size of Per Perr eer trw-.-tor Per :tractor
S tractor :Tractors: tractor tractor : tractor :per 10- :tractor:per 10-
S... (.drawbar per per : per hourr da:,' per :hour day
Horsepower) : yea r ______ ear ear ______ ____f ue :,ar ___of use
SNumher Gallons Gallons : GaGallons GalIon.s Gallns:uallons

10 276 : 46 : 2 2 17.L 11.2 .60

15 : 23 : 989 117 1105 : 7.5 29.4 : .3

18 4 : 1600 : : 1600 : 31.1 45 : .84

20 1 : 2610 : 610 : 2.t 80.0 : 1.00

: 22 5 1410 : : 1410 : 54.4 : 3.3 : .91

S 26 2 : 810 : : 810 ,.2: 17.5 .80
Total or
Saverge : 417 971 : 74 : 1045 : 28.0 33.8 : .87


__TRAC3-L-.HIt(C TRACTORS


20 19 1106 1106 : 21.3 S6.6 .70

25 : 71 : 2140 2140 31.3 : 70.1 :1.04

39 9 : 270 : 2709 : 37.9 : 79.8 :1.12

50 : 253 : 35897 : : ,337 : 55.4 100.5 :1.43
Total or
average : 122 23552' : :,.8 : 7 1. :1.09

_/ Based on normal consumption of motor fuels and cylinder oil.

2/ Average of all tractors.





28.


Table 19. Cost of motor fuels and lubricants consumed by tractors of different
types and sizes, Pacific Northwest l/


ORDINARY" HIGH- HEEL TRACTORS__________
Gaso- :Distil-: Total Other
:line 2/:late 2/: motor fuels 2/ : Cylinder oil : oils and grease
Size of : Per : Per : Per :Per trac-: Per :Per trac- Per :Per trac-
tractor :tractor:tractor: tractor:tor per :tractor:tor per :tractor:tor per
(drawbar per : per : per :10-hour per :10-hour : per :10-hour
horsepower) year ,year : "ear :day of use: year :day of use: year :day of use
:Dollars :Dollars :Dollars :Dollars :Dollars:Dollars :Dollars:Dollars

10 38.50: 3.64 : 42.14: 2.27 : 7.47: .40 : 3.35 : .18

15 : 147.66: 9.46 : 157.12: 3.91 : 20.62: .51 : 9.5 : .24

18 : 279.54: : 279.54: 5.43 : 30.20: .59 : 12.89 : .25

20 : 365.40: : 365.40: 4.55 : 38.40: .48 : 20.08 : .25

22 : 224.07: : 224.07: 1.47 : 19.73: .48 : 10.66 : .26

26 : 159.12: : 139.12: 6.21 : 13.58: .60 : 6.06 : .2?
Total or : : :
average : 149.71: 6.02 : 15j.73: 4.18 : 10.01: .51 : 8.89 : .24


TR ACK-LA' IJC, TRACTORS

20 : 169.32: : 169.32: 3.26 : 22.90: .44 : 52.00 : 1.00

25 :333.19: :53t.19: 4.?7 : 40.75: .61 : 74.06 1.10

39 : 431.85: : 431.35: '.04 : 54.60: .76 : 82.23 : 1.15

50 : 570.59: : 570.59: 8.12 : 60.00: .85 : 91.42 : 1.30
Total or : : :
average 3 .9.70: :559.70: 5.47 42.68: .5 : 74.24 : 1.13

'/ Based on normal consumption of notor fuels and lubricants at prices paid
in 1935.

/ AveZ sgc of all tractors.







2j.

Table 20. Cost of cash repairs and labor on repairs for tractors of different
types and sizes, Pacific Northwest


OrDIIIARY HIGH-WHEEL TRACTORS
: :Farm labor on repairs
S:Cash repairs 1/:Owner and famil,-: Hired Cost 3/
Size of : : Per : Per : Per : Per
tractor :Tractors:Reports:tracto.r:R eports:tractor :Reports :tractor:tractor
(drawbar : :. p'r : : per : : per : per
horsepower) year : year 2 year 2/: year 2/
Number Number :.Dollars:Nuriber : Days :1umbcr : Days : Dollars

10 : 8 : 8 : 15.62: 7 9.1 2 : 1.9 19.18

15 23- : 23 : 41.30: 20 : 3.7 : 4 : .5 : 9.51

18 : 4 .: 4 : 2&.25: .3 : 3.0 2 1.0 : 9.38

20 1 : 1 100.00: 1 : 5.0 : 1 : 5.C, : 22.50

22 : 3 : 3. : 75.00: 3 : 2.7 : : : 6.50

26 : 2 : 2 : 6a.50: 2 : 1.0 : : 2.3
Total or
average : 41 : 41 : 39.76: 36 : 4.5 : 9 : .9 : 11.13


TRHACK-LAI NiG TRACTORPS':

20 : 19 : 19 : 77.37: 19 : 3.4 : 5 : .6 : 10.46

25 : 71 : 71 107.65: 61 : 6.0 .19 : 1.3 : 16.93

39 9 9 76.11: 9 5.2 : 12.61

50 : 23 : 23 : 166.50: 2 0 : 10.7 : 4 : 1.6 : 7.96
Total or : : :
average : 122 : 122 : 111.70: 109 :-1 : g. 1.2 17 .68

I/ Normal cash outlay for new parts and skilled labor on repairs in r'azhino
shops.

2/ Average of all tractors.

3/ Represents the value of the nor.:xal time spc:nt on traci or reaaitr On-: a.
1933 rates for labor.





zJo.


Table 21. Average first cost, age in 1933, years of useful life, depreciation
and interest charges for tractors of different types and
sizes, Pacific Northwest


ORDINARY HIG!T-'IBEL TRACTCFS
Size of tractor: Average : Average : : Depreciation : Interest
(Drawbar Tractors first : age : Useful : per tractor :per tractor
horsepower) : cost : in 1933 : life : per year l/ :per year i/
Number : Dollars : Years : Years : Dollars : Dollars

10 8 : 1272 : S.9 14.0 : 90.90 : 38.16

15 : 23 : 1305 4.8 : 9.4 : 138.72 : 39.15

18 4 : 1550 5.5 : 10.2 : 151.96 : 46.50

20 1 : 1450 : 4.0 : 8.0 : 181.31 : 43.50

22 3 : 1513 4.3 : 9.3 : 162.69 ': 45.40

26 : 2 : 1718 : 2.5 : 8.0 : 214.75 : 51.52
Total or
average : 41 : 1361 : 5.5 : 10.3 : 132.14 : 40.84


TRAC::-LA'unG TR .CTOR3
*m

20 : 19 : 203 2 : 4.5 : 9.2 : 220.86 : 60.96

25 71 : 2933 : 5.2 10.5 : 279.33 : 87.99

39 9 : 306 : 2.. : 9.2 335.43 92.58

50 : 23 :47C1 : 6.7 : 11.1 : 428.92 :142.83
Total or :
average : 122 : 3149 : 5.2 : 10. : 305.7L : 94.46

i/ Computed by dividing the first cost of the tractor by the estimated years


of useful


life.


2/ Charged at the role of 6 percent of one-half of the first cost of the
tr -ctor.







31.


Table 22. Total cost per year and per 10-hour day of use for tractors of


different


types and sizes, Pacific Northwest, 19533 i/


ORDINARY HIGH-'rIEEL TRACTORS
Size of : :Cost______________
tractor : Annual : Per year 'Per 10-hour day of use
(drawbar : Tractors : use of :Excluding:Including:Excluding:Including
horsepower) : : tractor: interest: interest: interest: interest
SIIumber : Hours : Dollars : Dollars : Dollars Dollars

10 8 186 : 178.66 216.82 : 9.60 : 11.65

15 : 23 : 402 : 376.92 : 416.07 : 9.38 : 10.35

18 : 4 : 515 : 510.22 : 556.72 : 9.95 : 10.81

20 1 : 803 727.69 771.19 : 9.06 : 9.60

22 : 3 : 410 : 498.65 : 544.05 : 12.16 : 15.27

26 : 2 : 224 : 438.59 : 489.91 : 19.57 : 21.87
Total or
average : 41 : 373 : 366.66 : 407.50 : 9.83 : 10.92


20

25

39

50
Total or
average


19

71

9

25

122


TRACK-LAYI ING

520 : 552.91

671 : 851.91


TRACTORS

: 615.87

: 939.90


715 : 992.,85 : 1085.41

703 : 1345.39 :1488.22

657 : 911.67 : 100C.13


I/ Based on normal


consumption of fuels and lubri2init7, at pri:. s p:-. L'- in


1933, normal outlay for cash repairs, an--, normal days of lalbc- on r:,)airs,
at 1933 rates for labor. Deprcceiation Aias computed by di'ding the first
cost of the tractor by the esttriated years of useflil life. Interest was
charged at 6 percent of one-half of the average first cost of the tractor.


10.63

12.70

15.89

19.14

13.:3


11.80

14.00

15.18

21.17

15.. .'- 1




UNIVERSITY OF FLORIDA
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