HyperWar: USMC Staff Officer's Field Manual for Amphibious Operations [Chapter 6]

Chapter VI
Engineering

Page

Material and Labor Required for 300 Yards of Wire Entanglement 1

Camouflage Paints 2

Daily Water Requirements 3

Thickness Required for Protection Against Single Shots by Direct-Fire Weapons 4-5

Thickness Required for Over-Head Protection Against Penetration plus Explosion 6

Thickness Required for Protection Against Penetration from Projectiles and Bombs Exploding Within 50 Feet 7

Time and Labor for Constructing Entrenchments 8

Steel Road and Landing Mats 9

Vehicle and Poster Capacities Steel Panel Fixed Bridge, Bailey Type 10

Proportions, Batch Quantities, and Unit Quantities for Concrete Mixes 11-13

Functions of Numbers 14-15

Fiber Ropes, Wire Ropes, Etc. 16

Safe Load of Hooks 17

Properties of Chains 18

Weights of Common Materials 19

Contents of Lumber in Board Feet 20

Properties of Explosives 21

Equivalents of Measure 22-24

	Page
Material and Labor Required for 300 Yards of Wire Entanglement		1
Camouflage Paints		2
Daily Water Requirements		3
Thickness Required for Protection Against Single Shots by Direct-Fire Weapons		4-5
Thickness Required for Over-Head Protection Against Penetration plus Explosion		6
Thickness Required for Protection Against Penetration from Projectiles and Bombs Exploding Within 50 Feet		7
Time and Labor for Constructing Entrenchments		8
Steel Road and Landing Mats		9
Vehicle and Poster Capacities Steel Panel Fixed Bridge, Bailey Type		10
Proportions, Batch Quantities, and Unit Quantities for Concrete Mixes		11-13
Functions of Numbers		14-15
Fiber Ropes, Wire Ropes, Etc.		16
Safe Load of Hooks		17
Properties of Chains		18
Weights of Common Materials		19
Contents of Lumber in Board Feet		20
Properties of Explosives		21
Equivalents of Measure		22-24

Material and Labor Required for 300 Yards of Wire Entanglement

Type of Entanglements Pickets Short 400-Yd. reels Concertinas Staples made of ¹/2-in round drift pins Weight of material per linear yd. of entangle-
ment Man-hours to erect 300-yd. of entangle-
ment

Extra long Long Medium

Double-apron 4- and 2-pace 91 182 12-13 10 54

Double-apron 6- and 3-pace 61 122 11-12 7 45

High-wire (less guy wires) 181 15-18 12 72

Low-wire 4- and 2-pace 91 182 9 7.5 45

Four-strand fence 91 2 3¹/2-4 4 18

Double-belt concertina (pyramidal) 92 4 2 90 270 14 36

Triple-belt concertina (pyramidal) 46 92 6 3 135 270 21 90

Triple-belt Dannert concertina 146 4 2 54 15 27

1. Lower number of reels applies when screw pickets are used; higher number when U-shiped pickets are used. Add difference between these two to the larger number when wooden pickets are to be used.
2. Average weight when any issue metal pickets are used.
3. With exception of triple-belt concertina, man-hours are based on use of screw pickets. When driven pickets are used, add 20 per cent to man-hours. With experienced troops, reduce man-hours by one-third. Increase man-hours by 50 per cent for night work.

Material and Labor Required for 300 Yards of Wire Entanglement
Type of Entanglements	Pickets	Short	400-Yd. reels	Concertinas	Staples made of ¹/2-in round drift pins	Weight of material per linear yd. of entangle- ment	Man-hours to erect 300-yd. of entangle- ment
Extra long	Long	Medium
Double-apron 4- and 2-pace		91		182	12-13			10	54
Double-apron 6- and 3-pace		61		122	11-12			7	45
High-wire (less guy wires)		181			15-18			12	72
Low-wire 4- and 2-pace			91	182	9			7.5	45
Four-strand fence		91		2	3¹/2-4			4	18
Double-belt concertina (pyramidal)		92		4	2	90	270	14	36
Triple-belt concertina (pyramidal)	46	92		6	3	135	270	21	90
Triple-belt Dannert concertina		146		4	2	54		15	27
1. Lower number of reels applies when screw pickets are used; higher number when U-shiped pickets are used. Add difference between these two to the larger number when wooden pickets are to be used. 2. Average weight when any issue metal pickets are used. 3. With exception of triple-belt concertina, man-hours are based on use of screw pickets. When driven pickets are used, add 20 per cent to man-hours. With experienced troops, reduce man-hours by one-third. Increase man-hours by 50 per cent for night work.

--1--

Camouflage Paints

Name Form issued Mix Remarks¹

Oleoresinous paint (emulsifiable)² Paste Cloth: 1 part of paste to 3 of solvent.
Other surface: Equal parts paste and solvent. Water, gasoline, or mineral spirits are suitable solvents. Coverage 400-600 sq. ft. per gal. on cloth, 450-750 sq. ft. per gal. on wood or painted metal.

Cold-water protein binder paint² Powder paste 10 lb. powder to 1 gal. water. 2 parts paste to 1 part water This paint is stocked at present but its procurement is discontinued. Coverage on cloth 200-300 sq. ft. per gal.

Gasoline-soluble paint³ Powder 9 lb. powder to 1 gal. gasoline Coverage 500-600 sq. ft. per gal. on metal. Can be removed with gasoline.

Lusterless enamel⁴ Liquid Ready-mixed. May be thinned with mineral spirits. 500-600 sq. ft. per gal. on metal.

Bituminous emulsions (pigmented³ and nonpigmented)⁵ Viscous liquid 1 part paint to 1 to 2 parts water. Coverage on 2ood 300-350 sq. ft. per gala. 100 sq. ft. per gal. on earth. Surfaces coated with this paint cannot be repainted with any other type of paint.

Ready-mixed oil paint Liquid Ready-mixed. May be thinned with mineral spirits or gasoline. 400-475 sq. ft. per gal. on wood. 500-600 sq. ft. per gal. on metal.

Cut-back asphalt (rapid cure)⁵ Liquid Thin with gasoline. 100 sq. ft. per gal. on earth.

1. Coverage figures are based upon undiluted paints.
2. Available in the following standard colors:
Light green Sand Earth brown Loam Olve drab White
Dark green Field-drab Earth yellow Earth red-Black

3. Available in O.D. only.
4. Available in O.D. and black only.
5. Available in natural (black) only.

Name	Form issued	Mix	Remarks¹
Oleoresinous paint (emulsifiable)²	Paste	Cloth: 1 part of paste to 3 of solvent. Other surface: Equal parts paste and solvent. Water, gasoline, or mineral spirits are suitable solvents.	Coverage 400-600 sq. ft. per gal. on cloth, 450-750 sq. ft. per gal. on wood or painted metal.
Cold-water protein binder paint²	Powder paste	10 lb. powder to 1 gal. water. 2 parts paste to 1 part water	This paint is stocked at present but its procurement is discontinued. Coverage on cloth 200-300 sq. ft. per gal.
Gasoline-soluble paint³	Powder	9 lb. powder to 1 gal. gasoline	Coverage 500-600 sq. ft. per gal. on metal. Can be removed with gasoline.
Lusterless enamel⁴	Liquid	Ready-mixed. May be thinned with mineral spirits.	500-600 sq. ft. per gal. on metal.
Bituminous emulsions (pigmented³ and nonpigmented)⁵	Viscous liquid	1 part paint to 1 to 2 parts water.	Coverage on 2ood 300-350 sq. ft. per gala. 100 sq. ft. per gal. on earth. Surfaces coated with this paint cannot be repainted with any other type of paint.
Ready-mixed oil paint	Liquid	Ready-mixed. May be thinned with mineral spirits or gasoline.	400-475 sq. ft. per gal. on wood. 500-600 sq. ft. per gal. on metal.
Cut-back asphalt (rapid cure)⁵	Liquid	Thin with gasoline.	100 sq. ft. per gal. on earth.

--2--

Daily Water Requirements

Unit consumer Conditions of use Gallons
per unit
per day Remarks

Man In combat:
Minimum
1/2
For periods not exceeding 3 days.

Normal 1 Drinking and cooking only.

In bivouac 2 Minimum for all purposes.

Temporary camp 5 Desirable for all purposes at all times (does not include bathing).

Temporary camp with bathing facilities 15

Semipermanent camp 30-60 Includes allowance for waterborne sewage system.

Permanent camp 60-100

Horse, mule, or other large domestic animals Minimum 3-5 A horse can go for 48 hours without water.

Normal 10 Drinks from 3 to 5 gallons at a watering and requires 5 minutes to drink.

Motors (consumption per vehicle) Level and rolling country 1/6 to 1/2 Depends on size of vehicle.

Locomotives (consumption per locomotive) Mountainous country 1/4 to 1 Do.

Standard military Variable 150 gallons per train mile.

Commercial Variable 200 gallons per train mile.

Shower bath Semipermanent buildings (coonsumption per fixture) 300 Depends on number of using personnel and freuqency of use.

Water closet Do. 40 Do.

Lavatory, basin or sink Do. 20 Do.

Urinal Do. 49 Do.

Unit consumer	Conditions of use	Gallons per unit per day	Remarks
Man	In combat: Minimum	1/2	For periods not exceeding 3 days.
Normal	1	Drinking and cooking only.
In bivouac	2	Minimum for all purposes.
Temporary camp	5	Desirable for all purposes at all times (does not include bathing).
Temporary camp with bathing facilities	15
Semipermanent camp	30-60	Includes allowance for waterborne sewage system.
Permanent camp	60-100
Horse, mule, or other large domestic animals	Minimum	3-5	A horse can go for 48 hours without water.
Normal	10	Drinks from 3 to 5 gallons at a watering and requires 5 minutes to drink.
Motors (consumption per vehicle)	Level and rolling country	1/6 to 1/2	Depends on size of vehicle.
Locomotives (consumption per locomotive)	Mountainous country	1/4 to 1	Do.
Standard military	Variable	150 gallons per train mile.
Commercial	Variable	200 gallons per train mile.
Shower bath	Semipermanent buildings (coonsumption per fixture)	300	Depends on number of using personnel and freuqency of use.
Water closet	Do.	40	Do.
Lavatory, basin or sink	Do.	20	Do.
Urinal	Do.	49	Do.

--3--

Thickness Required for Protection Against Single Shots by Direct-Fire Weapons

Materials Small arms
and MG
(7.92) fire at
100 Yds. AT Rifle
(7.92) fire
at
100 Yds. 20-mm
AT fire
at
200 Yds. 37-mm
AT fire
at
400 Yds. 50-mm
AT fire
at
400 Yds. 75-mm
direct
fire
500-1000
Yds. 88-mm
direct
fire
500-1000
Yds. Remarks

Solid Walls¹

Brick Masonry (feet) 1¹/2 2 2¹/2 5

Concrete¹ (do) 1 1¹/2 2 3¹/2 4 4¹/2 6¹/2 Ordinary concrete walls.

Concrete (reinf.)² (do) ¹/2 1 1¹/2 3 3¹/2 4 5 Structurally reinforced.

Stone masonry (do) 1 1¹/2 2¹/2 3¹/2 4¹/2 5

Wood (do) 2 3 4 These figures can be taken as guide only.

Timber (do) 3 5

Walls of Loose Materials Packed Between Boards¹

Brick rubble(feet) 1 2 2¹/2 5 6

Clay (dry) (do) 3 4 Add 50 percent if wet.

Loam (dry) (do) 2 3 4 Add 50 percent if wet.

Gravel, small stone (do) 1 2 2¹/2 5 6

Sand (dry) (do) 1 2 2¹/2 5 6 Add 50 percent if wet.

Sandbags Filled With:³

Brick rubble (inches) 20 30 30 60 70

Clay (dry) (do) 40 60 Add 50 percent if wet.

Loam (dry) (do) 30 50 60 Add 50 percent if wet.

Gravel, small stone (do) 20 30 30 60 70

Sand (dry) (do) 20 30 30 60 70 Add 50 percent if wet.

Thickness Required for Protection Against Single Shots by Direct-Fire Weapons
Materials	Small arms and MG (7.92) fire at 100 Yds.	AT Rifle (7.92) fire at 100 Yds.	20-mm AT fire at 200 Yds.	37-mm AT fire at 400 Yds.	50-mm AT fire at 400 Yds.	75-mm direct fire 500-1000 Yds.	88-mm direct fire 500-1000 Yds.	Remarks
Solid Walls¹
Brick Masonry (feet)	1¹/2	2	2¹/2	5
Concrete¹ (do)	1	1¹/2	2	3¹/2	4	4¹/2	6¹/2	Ordinary concrete walls.
Concrete (reinf.)² (do)	¹/2	1	1¹/2	3	3¹/2	4	5	Structurally reinforced.
Stone masonry (do)	1	1¹/2	2¹/2	3¹/2	4¹/2	5
Wood (do)	2	3	4					These figures can be taken as guide only.
Timber (do)	3	5
Walls of Loose Materials Packed Between Boards¹
Brick rubble(feet)	1	2	2¹/2	5	6
Clay (dry) (do)	3	4						Add 50 percent if wet.
Loam (dry) (do)	2	3	4					Add 50 percent if wet.
Gravel, small stone (do)	1	2	2¹/2	5	6
Sand (dry) (do)	1	2	2¹/2	5	6			Add 50 percent if wet.
Sandbags Filled With:³
Brick rubble (inches)	20	30	30	60	70
Clay (dry) (do)	40	60						Add 50 percent if wet.
Loam (dry) (do)	30	50	60					Add 50 percent if wet.
Gravel, small stone (do)	20	30	30	60	70
Sand (dry) (do)	20	30	30	60	70			Add 50 percent if wet.

--4--

Thickness Required for Protection Against Single Shots by Direct-Fire Weapons
(cont'd.)

Materials Small arms
and MG
(7.92) fire at
100 Yds. AT Rifle
(7.92) fire
at
100 Yds. 20-mm
AT fire
at
200 Yds. 37-mm
AT fire
at
400 Yds. 50-mm
AT fire
at
400 Yds. 75-mm
direct
fire
500-1000
Yds. 88-mm
direct
fire
500-1000
Yds. Remarks

Loose Parapets of:¹

Clay (feet) 3¹/2 5 Add 50 percent if wet.

Laom (do) 3 4 5 Add 50 percent if wet.

Sand (do) 2 3 4 Add 50 percent if wet.

1. Thickness given to the nearest half foot.
2. For 3,000 pounds per square in ch concrete.
3. Thichness for walls made of sandbags given in multipoles of filled bag widths. (10 inches)
4. One burst of five shots.
NOTE:
Protective thickness given is for a single shot only. Where direct-fire wseapons are able to get five or six hits in the same area, the required protective thickness is approximatley twice that indicated.

Thickness Required for Protection Against Single Shots by Direct-Fire Weapons (cont'd.)
Materials	Small arms and MG (7.92) fire at 100 Yds.	AT Rifle (7.92) fire at 100 Yds.	20-mm AT fire at 200 Yds.	37-mm AT fire at 400 Yds.	50-mm AT fire at 400 Yds.	75-mm direct fire 500-1000 Yds.	88-mm direct fire 500-1000 Yds.	Remarks
Loose Parapets of:¹
Clay (feet)	3¹/2	5						Add 50 percent if wet.
Laom (do)	3	4	5					Add 50 percent if wet.
Sand (do)	2	3	4					Add 50 percent if wet.
1. Thickness given to the nearest half foot. 2. For 3,000 pounds per square in ch concrete. 3. Thichness for walls made of sandbags given in multipoles of filled bag widths. (10 inches) 4. One burst of five shots. NOTE: Protective thickness given is for a single shot only. Where direct-fire wseapons are able to get five or six hits in the same area, the required protective thickness is approximatley twice that indicated.

--5--

Required Thickness in Feet of Overhead Cover for Protection Against Penetration plus Explosion

Protective material High-explosive shell General-Purpose bombs

75-mm 105-mm 155-mm 100-lb. 250-lb. 500-lb.

Reinforced concrete (4,000 lb./sq. in.) 1¹/2 2¹/2 3¹/2 3¹/2 4¹/2 6

Stone masonry or plain concrete 2 3¹/2 5 6 8 9¹/2

Logs, 8-inch minimum diameter wired 3 5 7 7 9 12

Crushed stone 4 7 9 9 12 16

Tamped earth 8 14 18 18 24 32

Protective material	High-explosive shell	General-Purpose bombs
75-mm	105-mm	155-mm	100-lb.	250-lb.	500-lb.
Reinforced concrete (4,000 lb./sq. in.)	1¹/2	2¹/2	3¹/2	3¹/2	4¹/2	6
Stone masonry or plain concrete	2	3¹/2	5	6	8	9¹/2
Logs, 8-inch minimum diameter wired	3	5	7	7	9	12
Crushed stone	4	7	9	9	12	16
Tamped earth	8	14	18	18	24	32

--6--

Thickness of Materials Required to Protect Against Penetration of Fragments From Projectiles and Bombs Exploding at a Distance of 50 Feet.
Thicknesses listed in table will give protection at 25 feet except in rare cases.

Material Thickness
measured
in-- High-explosive shell General-purpose bombs

75-mm 105-mm 155-mm 100-
pound 250-
pound 500-
pound 1000-
pound

Solid walls Inches

Brick masonry " 8 13 17 8 10 13 17

Concrete (plain) " 8 15 18 9 12 15 18

Concrete (reinforced) " 7 12 15 7 9 12 15

Timber " 12 20 24 12 15 20 26

Walls of loose material packed bewteen boards: Inches

Brick rubble " 15 24 30 16 20 24 30

Gravel, small stones " 15 24 30 16 20 24 30

Earth " 20 30 36 20 24 28 36

Sandbags will with:¹ Inches

Brick rubble " 20 30 30 20 20 30 30

Gravel, small stones " 20 30 30 20 20 30 30

Sand " 20 30 30 20 30 40 40

Parapets of:² Feet

Sand (dry) " 2 3 3 2 3 4 4

Earth (dry) " 2 3 4 3 4 4 5

1. Figurees given in multiples of width or thickness of sandbags.
2. Figures given to nearest 1/2 foot.

Thickness of Materials Required to Protect Against Penetration of Fragments From Projectiles and Bombs Exploding at a Distance of 50 Feet. Thicknesses listed in table will give protection at 25 feet except in rare cases.
Material	Thickness measured in--	High-explosive shell	General-purpose bombs
75-mm	105-mm	155-mm	100- pound	250- pound	500- pound	1000- pound
Solid walls	Inches
Brick masonry	"	8	13	17	8	10	13	17
Concrete (plain)	"	8	15	18	9	12	15	18
Concrete (reinforced)	"	7	12	15	7	9	12	15
Timber	"	12	20	24	12	15	20	26
Walls of loose material packed bewteen boards:	Inches
Brick rubble	"	15	24	30	16	20	24	30
Gravel, small stones	"	15	24	30	16	20	24	30
Earth	"	20	30	36	20	24	28	36
Sandbags will with:¹	Inches
Brick rubble	"	20	30	30	20	20	30	30
Gravel, small stones	"	20	30	30	20	20	30	30
Sand	"	20	30	30	20	30	40	40
Parapets of:²	Feet
Sand (dry)	"	2	3	3	2	3	4	4
Earth (dry)	"	2	3	4	3	4	4	5
1. Figurees given in multiples of width or thickness of sandbags. 2. Figures given to nearest 1/2 foot.

--7--

Time and Labor for Constructing Entrenchments^*

Type of Emplacement Excavation (cu.ft.) Numbmer of men working Approximate time (hours)

Shallow connecting Trench (10-yd Section) 150 6 1

Standard Trench, (10-yd. Sec. with one fire pos.) 515 6 6¹/2

Special Trench (2-yd. Sec.) 45 1 2¹/2

One-Man Foxhole 35 1 1¹/2

Two-Man Foxhole 60 2 2¹/2

Prone Shelter 2¹/2 1 1

* Standard tools, average soil

Time and Labor for Constructing Entrenchments^*
Type of Emplacement	Excavation (cu.ft.)	Numbmer of men working	Approximate time (hours)
Shallow connecting Trench (10-yd Section)	150	6	1
Standard Trench, (10-yd. Sec. with one fire pos.)	515	6	6¹/2
Special Trench (2-yd. Sec.)	45	1	2¹/2
One-Man Foxhole	35	1	1¹/2
Two-Man Foxhole	60	2	2¹/2
Prone Shelter	2¹/2	1	1
* Standard tools, average soil

--8--

Steel Road and Landing Mats

a. Characteristics and comparison of steel landing mats.

Type Pierced
Plank Heavy Bar
and rod Irving
grid Light Bar
and rod Sommerfeld

Weight (lb. per sq. ft.) 5.11 3.90 5.56 1.90 1.16

Unit weight and dimensions:

Length 10'0" 12'0" 12'6" 12'0" 75'0"

Width 1'3" 3'0" 1'10⁵/16" 3'0" 10'4¹/2"

Depth ⁷/8" 1" 1" ³/4" ¹/2"

Area covered (sq. ft.) 12.5 36.0 23.24 36.0 778.12

Weight (lb.) including accessories 63.86 140.4 129.24 68.4 935

Bundles:

Number and type of units 30 planks* 14 panels 16 panels 30 panels 1 roll

Weight (lb.) including accessories 1,928 1,966 2,076.6 2,052 935

Quantity for runway, 5,000 x 150:

Number of units 60,000 20,833 32,269 20,833 964

Total weight (tons) 1,928 1,465 2,084.9 712.5 440.34

Cargo Space (cu. ft.) 32,084 81,222 75,092 59,084 36,111

Average laying speed (sq. ft. per man hr.) 125 65 65 125 175

Comparative camouflage potentialities 30%
open area 85%
open area 85%
open area 90%
open area 95%
open area

* Breaks down into six subbundles of five each. One subbundle contains two 5-foot half panels and 4 full panels.

Steel Road and Landing Mats
a. Characteristics and comparison of steel landing mats.
Type	Pierced Plank	Heavy Bar and rod	Irving grid	Light Bar and rod	Sommerfeld
Weight (lb. per sq. ft.)	5.11	3.90	5.56	1.90	1.16
Unit weight and dimensions:
Length	10'0"	12'0"	12'6"	12'0"	75'0"
Width	1'3"	3'0"	1'10⁵/16"	3'0"	10'4¹/2"
Depth	⁷/8"	1"	1"	³/4"	¹/2"
Area covered (sq. ft.)	12.5	36.0	23.24	36.0	778.12
Weight (lb.) including accessories	63.86	140.4	129.24	68.4	935
Bundles:
Number and type of units	30 planks*	14 panels	16 panels	30 panels	1 roll
Weight (lb.) including accessories	1,928	1,966	2,076.6	2,052	935
Quantity for runway, 5,000 x 150:
Number of units	60,000	20,833	32,269	20,833	964
Total weight (tons)	1,928	1,465	2,084.9	712.5	440.34
Cargo Space (cu. ft.)	32,084	81,222	75,092	59,084	36,111
Average laying speed (sq. ft. per man hr.)	125	65	65	125	175
Comparative camouflage potentialities	30% open area	85% open area	85% open area	90% open area	95% open area
* Breaks down into six subbundles of five each. One subbundle contains two 5-foot half panels and 4 full panels.

--9--

Vehicle and Poster Capacities Steel Panel Fixed Bridge, Bailey Type
(tentative, subject to revision by further tests)

NOTE: This document was transcribed from a rather poor pdf file, not hard copy. The legend for this table makes almost no sense to me, so I have provided the original page image -- if you can make more sense of it than I have, more power to you! -- HyperWar

Vehicle Wt
Class
Tons SS DS TS DD TD

Span of Bridge In Feet

60 50 30 120 110 100 80 60 50 40 140 130 120 110 90 80 70 160 150 140 130 110 100 90 180 170 160 150 130 120 110

Posted Capacity in Tons

28 35 45 16 20 23 33 50 60 70 18 22 25 30 41 48 60 21 25 30 35 45 53 61 19 23 29 35 49 57 65

Truck, 1¹/2-T, w/1 T tlr 6

Truck, 1¹/2-T, w/105mm How 6

Tractor d-4 w/dozer 7

Car armored light, M8 8

Truck 2¹/2-T w/1 T tlr 9

Truck 2¹/2-T w/105mm How 9

Car half-track M2 9

Other vehicles under 10-T

Grader med mtzd (Engr) 11

Truck 4-T wrecker 11

Tank light M2A4 12

Truck, 2¹/2-T w/155mm How carr M1 11

Crane trk-mtd (Engr) 12

Truck 4-T cargo (same as distributor water) 13

Truck 4-T ponton 13

Tank light M3 14

Trk tractor 4-5T w/semi-atlr fuel serv F-2(AC) 12

Tractor D-7 w/dozer 15

Truck wrecking C-1 (AC) 16

Tank light M5 16

Trk-tractor 5-6T w/semi-tlr ponton 14

Motor carriage M8 16

H-10 Loading (ASSBO)

Truck 6-T cargo 18

Crane trk-mtd, w/crane attachments tlr 15

Truck 4-T w/155mm How carr M1 16

Tank light 18-T 18

Truck 6-T bridge 19

Truck 2¹/2-T w/8 T tlr 17

Tank medium M2A1 21

Truck 7¹/2-T cargo & prime mover 21

Tractor D-4 w/dozer 22

Truck 4-T cargo w/8 T tlr 20

Truck 6-T w/3-in AA M2A2 22

Truck 6-T w/90mm AA M1 23

Motor carriage M7 24

Trk-tractor 6-T w/semi-tlr wrecking C-2 E-16 loading 26

Motor carriage M12 27

Motor carriage M10 29

Trk-tractor 7¹/2-T w/semi-tlr fuel serv F-1 (AC) 26

Truck 7¹/2-T w/155mm gun carr M2 & M3 28

Trk-tractor 5-6T w/20-T semi-tlr 32

Truck 6-T w/16-T tlr 31

Tank medium M3 33

Tank medium M4 34

H-20 loading

Vehicle	Wt Class Tons	SS			DS							TS							DD							TD
		Span of Bridge In Feet
		60	50	30	120	110	100	80	60	50	40	140	130	120	110	90	80	70	160	150	140	130	110	100	90	180	170	160	150	130	120	110
		Posted Capacity in Tons
		28	35	45	16	20	23	33	50	60	70	18	22	25	30	41	48	60	21	25	30	35	45	53	61	19	23	29	35	49	57	65
Truck, 1¹/2-T, w/1 T tlr	6
Truck, 1¹/2-T, w/105mm How	6
Tractor d-4 w/dozer	7
Car armored light, M8	8
Truck 2¹/2-T w/1 T tlr	9
Truck 2¹/2-T w/105mm How	9
Car half-track M2	9
Other vehicles under 10-T
Grader med mtzd (Engr)	11
Truck 4-T wrecker	11
Tank light M2A4	12
Truck, 2¹/2-T w/155mm How carr M1	11
Crane trk-mtd (Engr)	12
Truck 4-T cargo (same as distributor water)	13
Truck 4-T ponton	13
Tank light M3	14
Trk tractor 4-5T w/semi-atlr fuel serv F-2(AC)	12
Tractor D-7 w/dozer	15
Truck wrecking C-1 (AC)	16
Tank light M5	16
Trk-tractor 5-6T w/semi-tlr ponton	14
Motor carriage M8	16

H-10 Loading (ASSBO)
Truck 6-T cargo	18
Crane trk-mtd, w/crane attachments tlr	15
Truck 4-T w/155mm How carr M1	16
Tank light 18-T	18

Truck 6-T bridge	19

Truck 2¹/2-T w/8 T tlr	17

Tank medium M2A1	21

Truck 7¹/2-T cargo & prime mover	21
Tractor D-4 w/dozer	22
Truck 4-T cargo w/8 T tlr	20

Truck 6-T w/3-in AA M2A2	22
Truck 6-T w/90mm AA M1	23
Motor carriage M7	24

Trk-tractor 6-T w/semi-tlr wrecking C-2 E-16 loading	26

Motor carriage M12	27
Motor carriage M10	29

Trk-tractor 7¹/2-T w/semi-tlr fuel serv F-1 (AC)	26

Truck 7¹/2-T w/155mm gun carr M2 & M3	28

Trk-tractor 5-6T w/20-T semi-tlr	32
Truck 6-T w/16-T tlr	31

Tank medium M3	33

Tank medium M4	34

H-20 loading

Chapter VIEngineering

Camouflage Paints

Daily Water Requirements

Required Thickness in Feet of Overhead Cover for Protection Against Penetration plus Explosion

Vehicle and Poster Capacities Steel Panel Fixed Bridge, Bailey Type (tentative, subject to revision by further tests)

Chapter VI
Engineering

Vehicle and Poster Capacities Steel Panel Fixed Bridge, Bailey Type
(tentative, subject to revision by further tests)