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Chapter 3
Table 3-1. Equipment Required for Rigging the M1101 HMT-L ¾-Ton Trailer on a 12-Foot, Type
V Platform for Low-Velocity Airdrop
National
Item
Quantity
Stock Number
8040-00-273-8713
Adhesive paste, 1-gal.
As required
4030-00-090-5354
Clevis, suspension, 1-inch (large)
5
4020-00-240-2146
Cord, nylon, type III, 550-lb
As required
1670-00-434-5783
Coupling, airdrop extraction force transfer, w/12-ft. cable
1
1670-00-360-0328
Cover, clevis
2
8135-00-664-6958
Cushioning material (Cellulose padding)
As required
8305-00-958-3685
Felt, 1/2-inch thick
As required
1670-01-183-2678
Leaf, extraction line (line bag) ( add 2 for C-17)
2
Line extraction:
1670-01-062-6313
60-foot (3-loop), type XXVI (for C-130)
1
1670-01-107-7651
140-foot (3-loop), type XXVI (for C-17)
1
1670-01-064-4452
60-foot (1-loop), type XXVI (for C-17), (drogue line)
1
1670-00-783-5988
Link assembly, type IV (C-17 only)
1
1670-01-493-6418
Link assembly, two-point, small, 3 ¾-inch
1
Lumber:
5510-00-220-6146
2- by 4- by 96-inch
3
5510-00-220-6148
2- by 6- by 96-inch
3
5315-00-010-4659
Nail, steel, common, 6D
As required
1670-00-753-3928
Pad, energy-dissipating (honeycomb)
15 sheets
1670-01-016-7841
Parachute, cargo, G-11B
2
Parachute, cargo, extraction:
1670-01-063-3715
15-foot (add one for C-17)
1
Platform, airdrop, type V, 20-foot:
1670-01-162-2372
Clevis assembly (type V)
14
1670-01-162-2376
Extraction bracket assembly
1
1670-01-247-2389
Link, suspension bracket, type V
2
1670-01-162-2381
Tandem link assembly (Multipurpose link)
2
5530-00-128-4981
Plywood, 3/4-inch
4 Sheets
3-34
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the M1101 High Mobility Trailer, Light Variant (HMT-L), ¾-Ton Cargo Trailer on a 12-Foot, Type V
Platform for Low-Velocity Airdrop
Table 3-1. Equipment Required for Rigging the M1101 HMT-L ¾-Ton Trailer on a 12-Foot, Type
V Platform for Low-Velocity Airdrop
National
Item
Quantity
Stock Number
1670-01-097-8816
Release, cargo parachute, M-1
1
Sling, cargo, airdrop:
1670-01-062-6301
3-foot (2-loop), type XXVI
1
1670-01-062-6304
9-foot (2-loop), type XXVI
1
1670-01-062-6303
12-foot (2-loop), type XXVI
4
1670-01-062-6302
20-foot (2-loop), type XXVI
2
5340-00-040-8219
Strap, parachute, release, multi-knife
2
7501-00-266-5016
Tape, adhesive, 2-inch
As required
1670-00-937-0271
Tie-down assembly, 15-foot
38
1670-01-483-8259
Link, parachute, connector (H-block) (C-17 only)
1
Webbing:
8305-00-268-2411
Cotton, 1/4-inch, type I
As required
8305-00-082-5752
Nylon, tubular, 1/2-inch
As required
8305-00-261-8585
Nylon, type VIII
As required
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-35
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Chapter 4
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform
for Low-Velocity Airdrop
DESCRIPTION OF THE LOAD
4-1. The 1 ½-ton trailer (Figure 4-1) is rigged on a 12-foot, type V airdrop platform using two G-11 cargo
parachutes. The 1 ½-ton trailer is 98 inches high (reducible to 55 inches), 83 inches wide, 166 ½ inches
long, and weighs
2.650 pounds. The trailer must be rigged with an accompanying load. The
accompanying load must not weigh more than 3,000 pounds. The accompanying load shown in this
chapter consists of 24 ammunition boxes weighing approximately 2,280 pounds.
Figure 4-1. 1 ½-Ton Trailer
27 March 2009
FM 4-20.121/TO 13C7-6-21
4-1
Chapter 4
PREPARING PLATFORM
4-2. Prepare a 12-foot, type V airdrop platform as shown in Figure 4-2.
CLEVISES 6A THROUGH 1A
FRONT
REAR
CLEVISES 6 THROUGH 1
Step:
1. Inspect, or assemble and inspect, a 12-foot, type V airdrop platform as outlined in TM 10-
1670-268-20&P/TO 13C7-52-22.
2. Install a tandem link to the front of each platform side rail using holes 1, 2, and 3.
3. Install a tandem link to the front of each platform side rail using holes 22, 23, and 24.
4. Install a clevis on bushing 2 of each front tandem link.
5. Install a clevis on bushing 4 of each rear tandem link.
6. Starting at the front of each platform side rail, install clevises on the bushings bolted to holes
9, 16, 17, and 20.
7. Starting at the front of the platform, number the clevises 1 through 6 on the right side and 1A
through 6A on the left side
8. Label the tie-down rings according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
Figure 4-2. Platform Prepared
4-2
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
BUILDING AND POSITIONING HONEYCOMB STACKS
4-3. Build the honeycomb stacks as shown in Figures 3-3 through 3-5 Position the stacks as shown in
Figure 4-6.
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
3
12
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
1
9
36
40
Honeycomb
Glue pieces together to form a base.
6
18
24
Honeycomb
Make a 3- by 12-inch cutout on each
piece of honeycomb. Place three
pieces on each side of the base with the
cutout to the front and facing outward
on the stack.
Figure 4-3. Honeycomb Stack 1 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-3
Chapter 4
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
2
6
12
48
Honeycomb
Glue 6 pieces of honeycomb together to
form a base.
1
12
48
¾-inch
Glue flush on top of the base.
Plywood
2
12
48
Honeycomb
Glue flush on top of the plywood.
Figure 4-4. Honeycomb Stack 2 Prepared
4-4
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
12
4
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
3
12
36
40
Honeycomb
Glue together to form a base. Make
a 4- by 8-inch cutout on each side to
the front of the top two layers
Figure 4-5. Honeycomb Stack 3 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-5
Chapter 4
STACK 3
STACK 1
STACK 2
REAR
FRONT
24
11
Step:
1. Position stack, 1 centered and flush, with the front edge of the platform.
2. Position stack 2 centered and 11 inches from the rear edge of stack 1.
3. Position stack 3 centered and 24 inches from the rear edge of stack 2.
Figure 4-6. Honeycomb Stacks Positioned on Platform
4-6
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
PREPARING THE TRAILER
4-4. Prepare the trailer as shown in Figure 4-7.
1
1 Remove the rack assembly, bows, and trailer cover.
Figure 4-7. Trailer Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-7
Chapter 4
2
4
3
6
5
2 Tape the trailer cover hooks.
3 Tape the hose, safety chains, and inter-vehicular cable to the drawbar.
4 Tape the hand brakes in the locked position using cloth-backed tape.
5 Tape the taillights and reflectors.
6 Tape the tailgate chains.
Figure 4-7. Trailer Prepared (Continued)
4-8
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
STOWING THE ACCOMPANYING LOAD AND TRAILER
COMPONENTS
4-5. Stow the accompanying load of 24 ammunition boxes in the trailer as shown in Figure 4-8. The
accompanying load must not weigh more than 3,000 pounds and must not exceed the height of the trailer
body. If the load includes a hazardous material, it must be packaged, marked, and labeled in compliance
with AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P 4030.19I/DLAI4145.3.The load must
comply with the restrictions and meet the requirements outlined in FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5.The accompanying load shown in these procedures as 2,280 pounds
of 105-millimeter ammunition stowed in the trailer.
CAUTION
Only ammunition listed in FM4-20.153/MCRP 4-11.3B/TO 13C7-
18-41 may be airdropped.
1
3
2
1 Place two 36- by 74-inch pieces of honeycomb in the front of the trailer.
2 Place two 36- by 54-inch pieces of honeycomb in the center of the trailer.
3 Make a 9- by 11-inch cutout on each side of two 36- by 74-inch pieces of honeycomb,
with the cutouts facing the front of the trailer, in the rear of the trailer.
Figure 4-8. Accompanying Load and Trailer Components Stowed
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-9
Chapter 4
4
5
4 Place six boxes of ammunition against the front wall of the trailer. Center a seventh box
of ammunition flush against the six ammunition boxes.
5 Place four boxes of ammunition against the tailgate of the trailer. Center a fifth box of
ammunition flush against the four ammunition boxes.
Figure 4-8. Accompanying Load and Trailer Components Stowed (Continued)
4-10
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
6
6 Place 12 additional boxes of ammunition on top of the boxes placed in steps 4 and 5.
Figure 4-8. Accompanying Load and Trailer Components Stowed (Continued)
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-11
Chapter 4
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
14
7
5
7
29
24
9
7 Make a 5- by 29-inch cutout as shown in six 14- by 36-inch pieces of honeycomb.
Figure 4-8. Accompanying Load and Trailer Components Stowed (Continued)
4-12
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
9
8
8
11
10
10
8 Place three pieces of the honeycomb with the 5- by 29-inch cutouts over each wheel
well.
9 Place eight 36- by 14-inch pieces of honeycomb next to the honeycomb placed in step 8.
10 Place four 36- by 14-inch pieces of honeycomb on each side of the rear ammunition
boxes.
11 Fill in open areas with filler honeycomb.
Figure 4-8. Accompanying Load and Trailer Components Stowed (Continued)
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-13
Chapter 4
12
12 Place the rack assembly on top of the ammunition boxes.
Figure 4-8. Accompanying Load and Trailer Components Stowed (Continued)
4-14
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
14
13
13
15
14
14
13 Pad all sharp areas of the rack assembly and bows with cellulose padding and tape.
14 Tie the bows together with type III nylon cord
15 Secure the bows and trailer cover to the rack assembly with type III nylon cord.
Figure 4-8. Accompanying Load and Trailer Components Stowed (Continued)
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-15
Chapter 4
BUILDING BODY PROTECTION BOARDS
4-6. Build the body protection boards as shown in Figure 4-9.
Note. All measurements are given in inches.
4
2
3
13
15
FRONT
REAR
57
1
1 Prepare two 2- by 6- by 120-inch pieces of lumber for body protection boards.
2 Tape a 7- by 11-inch piece of honeycomb 13 inches from the front of each board.
3 Tape a 4- by 11-inch piece of honeycomb 57 inches from the front of each board.
4 Tape a 7- by 11-inch piece of honeycomb 15 inches from the rear of each board.
Figure 4-9. Body Protection Boards Built
4-16
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
LASHING BODY PROTECTION BOARDS AND ACCOMPANYING
LOAD TO TRAILER
4-7. Lash the body protection boards and accompanying load to the trailer using twelve 15-foot tie-down
assemblies according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 and
as shown in Figure 4-10.
2
1
1 Place a body protection board on the left side of the trailer.
2 Pass a 15-foot lashing around the front left frame and through its own D-ring. Pass the
free end of the lashing up and around the body protection board once. Pass the free end
of the lashing up and over the top of the trailer.
Figure 4-10. Body Protection Boards and Accompanying Load Lashed to Trailer
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-17
Chapter 4
3
9
4
6
5
7
8
3 Repeat steps 1 and 2 for the right side of the trailer. Secure the lashings in steps 2 and 3
with two D-rings and a load binder on top of the load.
4 Pass a 15-foot lashing around the rear left frame and through its own D-ring. Pass the
free end of the lashing up and around the body protection board once. Pass the free end
of the lashing up and over the top of the trailer. Repeat step for the right side. Secure
the lashings with two D-rings and a load binder.
5 Repeat step 4 for the front of the wheel well. Do not wrap the lashing around the body
protection board.
6 Repeat step 4 for the rear of the wheel well. Do not wrap the lashing around the body
protection board.
7 Pass a 15-foot tie-down strap around the left drawbar and through its own D-ring. Pass
the free end up and over the top of the trailer.
8 Pass a 15-foot tie-down strap through the left rear tie-down provision and through its own
D-ring. Pass the free end up and over the top of the trailer. Secure lashings in steps 7
and 8 with two D-rings and a load binder.
9 Repeat steps 7 and 8 for the right side of the trailer.
Figure 4-10. Body Protection Boards and Accompanying Load Lashed to Trailer (Continued)
4-18
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
LIFTING AND POSITIONING THE TRAILER
4-8. Install the lifting slings and position the trailer as shown in Figures 4-11 and 4-12.
3
6
2
1
4
1 Wrap a 3-foot (2-loop), type XXVI nylon sling around each side of the drawbar. Ensure the
slings pass between the drawbar and the lifting handle.
2 Attach a large suspension clevis through the ends of each 3-foot sling.
3 Attach an 11-foot (2-loop), type XXVI nylon sling to each large front suspension clevis.
4 Safety tie the caste wheel to the drawbar lifting handles with type III nylon cord.
5 Wrap a 3-foot sling around the left frame at the rear of the trailer (not shown). Attach a large
suspension clevis through the ends of the sling (not shown). Repeat step for the right side
(not shown).
6 Attach a 12-foot (2-loop), type XXVI nylon sling to each rear suspension clevis.
Figure 4-11. Trailer Lifting Slings Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-19
Chapter 4
2
1
22
1 Place the trailer on the honeycomb with the axle centered on honeycomb stack 2 and the
rear edge of the trailer flush with the front edge of the platform.
2 Ensure the front edge of the lunette overhangs the rear of the platform by 22 inches.
3 Remove the lifting slings (not shown).
Figure 4-12. Trailer Positioned
4-20
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
LASHING LOAD TO PLATFORM
4-9. Lash trailer to the platform according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-
010/TO 13C7-1-5 and as shown in Figure 4-13.
Note. Pad any sharp edges on the load where a lashing may pass. Use cellulose padding and
masking tape.
Note. Left, right, front, and rear refer to the trailer, NOT the platform.
9
7
5
1
3
6
1
4
3
2
Lashing
Tie-down
Instructions
Number
Clevis Number
Pass lashing:
1
1
Through left wheel.
2
1A
Through right wheel.
3
2
Through left rear tie-down provision.
4
2A
Through right rear tie-down provision.
5
3
Through left wheel.
6
3A
Through right wheel.
7
4
Through lunette.
8
4A
Through lunette.
9
6
Through left front tie-down provision.
10
6A
Through right rear tie-down provision.
Figure 4-13. Trailer Lashed to Platform
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-21
Chapter 4
INSTALLING AND SAFETY TIEING THE SUSPENSION SLINGS
4-10. Install and safety tie the suspension slings according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 4-14.
5
1
4
2
3
1 Attach a 12-foot (2-loop), type XXVI nylon sling to each tandem link using a large suspension
clevis.
2 Wrap a 10-by 30-inch piece of felt around each sling where it makes contact with the load.
Tie the padding in place using type III nylon cord.
3 Tape the padding using pressure sensitive tape the full length of the felt and extend the tape
over on the suspension slings 6 inches on each end.
4 Install the deadman’s tie according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
5 Safety tie the suspension slings to the body protection boards using type III nylon cord.
Figure 4-14. Suspension Slings Installed and Safety Tied
4-22
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
BUILDING AND INSTALLING THE PARACHUTE STOWAGE
PLATFORM
4-11. Build the parachute stowage platform as shown in Figure 4-15. Install the parachute stowage
platform as shown in Figure 4-16.
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
34
17
2 X 4 X 13
2 X 4 X 13
LUMBER
LUMBER
2-INCH
HOLES
¾ X 48 X 60
PLYWOOD
2 X 4 X 60 LUMBER
Step:
1. Cut a ¾- by 48- by 60-nch piece of plywood.
2. Make a 17- by 34-inch cutout in the center of the front of the plywood.
3. Nail a 2- by 4- by 13-inch piece of lumber on each side of the front of the plywood using
sixpenny nails. Nail a 2- by 4- by 60-inch piece of lumber on the rear of the plywood
using sixpenny nails.
4. Drill six 2-inch holes as shown.
Figure 4-15. Parachute Stowage Platform Built
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-23
Chapter 4
2
3
1
3
5
5A
1 Center a 26- by 36-inch piece of honeycomb on the drawbar.
2 Center the parachute stowage platform on top of the honeycomb.
3 Lash the parachute stowage platform to clevises 5 and 5A with two 15-foot tie-downs.
Figure 4-16. Parachute Stowage Platform Installed
4-24
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
STOWING CARGO PARACHUTES
4-12. Prepare, stow, and restrain two G-11B cargo parachutes according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 4-17.
2
1
1 Position two G-11B cargo parachutes on the parachute stowage platform according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
2 Install a parachute restraint strap using type VIII nylon webbing on the drawbar lifting handle
on each side of the drawbar.
Figure 4-17. Cargo Parachutes Positioned and Restrained
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-25
Chapter 4
INSTALLING PARACHUTE RELEASE SYSTEM
4-13. Prepare and install an M-1 parachute release system according to FM
4-20.102/MCRP
4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 4-18.
3
2
4
1
5
6
1 Place a 36- by 36-inch piece of honeycomb on top of the load, and secure it with type III
nylon cord.
2 Center an M-1 parachute release assembly on top of the honeycomb.
3 Attach the parachute riser extensions to the parachute release connectors.
4 Attach the suspension slings to the lower suspension links.
5 Fold the excess suspension slings and safety tie with type I, ¼-inch cotton webbing.
6 Tie the parachute release safety ties to the trailer cover hooks.
Figure 4-18. M-1 Parachute Release Installed
4-26
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
INSTALLING EXTRACTION SYSTEM
4-14. Install the extraction system as shown in Figure 4-19.
D6
3
2
1
1 Install the components of the EFTC according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5. Use the rear mounting holes for the EFTC actuator
brackets.
2 Attach a 9-foot (2-loop), type XXVI nylon sling to be used as a deployment line.
3 Use a 12-foot cable and safety tie the cable to tie-down ring D6 on the platform with type I,
¼-inch cotton webbing.
Figure 4-19. Extraction System Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-27
Chapter 4
PLACING EXTRACTION PARACHUTE
4-15. Select the extraction parachute and extraction line needed using the extraction line requirements
table in FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5. Place the extraction
parachute and line on the load for installation in the aircraft.
INSTALLING PROVISIONS FOR EMERGENCY RESTRAINTS
4-16. Select and install the provisions for the emergency aft restraints according to the emergency aft
restraint requirements table in FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-
5.
MARKING RIGGED LOAD
4-17. Mark the rigged load according to FM
4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-
010/TO 13C7-1-5, and as shown in Figure 4-20. Complete Shipper's Declaration for Dangerous Goods. If
the load varies from the one shown, the weight, height, CB, and parachute requirements must be
recomputed.
EQUIPMENT REQUIRED
4-18. Use the equipment listed in Table 4-1 to rig this load.
4-28
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
CAUTION
Make the final rigger inspection required by AR 59-4 and FM 4-
20.102/MCRP
4-11.3J/NAVSEA SS400-AB-MMO-010/TO
13C7-1-5
before the load leaves the rigging site.
C/B
RIGGED LOAD DATA
Weight: Load Shown
7,360 pounds
Max Weight Load
8,080 pounds
Height
81 inches
Width
108 inches
Overall Length
170 ½ inches
Overhang: Front
0 inches
Rear (Parachute Stowage Platform)
22 inches
Center of Balance (CB) (from front edge of the platform)
72 inches
Extraction System with 16-foot cable (adds 0 inches to the length of the load)
Figure 4-20. 1 ½-Ton trailer Rigged on a 12-Foot, Type V Platform for Low-Velocity Airdrop
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-29
Chapter 4
Table 4-1. Equipment Required for Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform
for Low-Velocity Airdrop
National
Item
Quantity
Stock Number
8040-00-273-8713
Adhesive paste, 1-gal.
As required
4030-00-090-5354
Clevis, suspension, 1-inch (large)
10
4020-00-240-2146
Cord, nylon, type III, 550-lb
As required
1670-00-434-5783
Coupling, airdrop extraction force transfer, w/12-ft. cable
1
1670-00-360-0328
Cover, clevis
2
8135-00-664-6958
Cushioning material (Cellulose padding)
As required
8305-00-958-3685
Felt, 1/2-inch thick
As required
1670-01-183-2678
Leaf, extraction line (line bag) ( add 2 for C-17)
2
Line extraction:
1670-01-062-6313
60-foot (3-loop), type XXVI (for C-130)
1
1670-01-107-7651
140-foot (3-loop), type XXVI (for C-17)
1
1670-01-064-4452
60-foot (1-loop), type XXVI (for C-17), (drogue line)
1
1670-00-783-5988
Link assembly, type IV (C-17 only)
1
1670-01-493-6418
Link assembly, two-point, small, 3 ¾-inch
1
Lumber:
5510-00-220-6146
2- by 4- by 96-inch
1
5510-00-220-6148
2- by 6- by 120-inch
2
5315-00-010-4659
Nail, steel, common, 6D
As required
1670-00-753-3928
Pad, energy-dissipating (honeycomb)
5 sheets
1670-01-016-7841
Parachute, cargo, G-11B
2
Parachute, cargo, extraction:
1670-01-063-3715
15-foot (add one for C-17)
1
1670-00-687-5458
22-foot
1
Platform, airdrop, type V, 20-foot:
1670-01-162-2372
Clevis assembly (type V)
12
1670-01-162-2376
Extraction bracket assembly
1
1670-01-247-2389
Link, suspension bracket, type V
2
1670-01-162-2381
Tandem link assembly (Multipurpose link)
2
5530-00-128-4981
Plywood, 3/4-inch
1 Sheet
4-30
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
Table 4-1. Equipment Required for Rigging the 1 ½-Ton Trailer on a 12-Foot, Type V Platform
for Low-Velocity Airdrop
National
Item
Quantity
Stock Number
1670-01-097-8816
Release, cargo parachute, M-1
1
Sling, cargo, airdrop:
1670-01-062-6301
3-foot (2-loop), type XXVI
4
1670-01-062-6304
9-foot (2-loop), type XXVI
1
1670-01-063-7760
11-foot (2-loop), type XXVI
2
1670-01-062-6303
12-foot (2-loop), type XXVI
4
1670-01-062-6302
20-foot (2-loop), type XXVI
2
5340-00-040-8219
Strap, parachute, release, multi-knife
2
7501-00-266-5016
Tape, adhesive, 2-inch
As required
1670-00-937-0271
Tie-down assembly, 15-foot
24
1670-01-483-8259
Link, parachute, connector (H-block) (C-17 only)
1
Webbing:
8305-00-268-2411
Cotton, 1/4-inch, type I
As required
8305-00-082-5752
Nylon, tubular, 1/2-inch
As required
8305-00-261-8585
Nylon, type VIII
As required
27 March 2009
FM 4-20.113/TO 13C7-3-51
4-31
This page intentionally left blank.
Chapter 5
Rigging 400-Gallon Water Trailer on a 12-Foot, Type V
Platform for Low-Velocity Airdrop
DESCRIPTION OF THE LOAD
5-1. The 1 ½-ton, 2-wheeled, 400-gallon tank trailer (model numbers M107A1, M107A2, M149A1, and
M149A2) (Figure 5-1) is rigged on a 12-foot, type V airdrop platform using two G-11 cargo parachutes.
The M149A1 is shown in these procedures. The empty trailer is 75 inches high, 81 inches wide, 162
inches long, and weighs 6,150 pounds when filled.
Figure 5-1. M149A1 400-Gallon Water Trailer
27 March 2009
FM 4-20.121/TO 13C7-6-21
5-1
Chapter 5
PREPARING PLATFORM
5-2. Prepare a 12-foot, type V airdrop platform as shown in Figure 10-2.
CLEVISES 6A THROUGH 1A
FRONT
REAR
CLEVISES 6 THROUGH 1
Step:
1. Inspect, or assemble and inspect, a 12-foot, type V airdrop platform as outlined in TM 10-
1670-268-20&P/TO 13C7-52-22.
2. Install a tandem link to the front of each platform side rail using holes 1, 2, and 3.
3. Install a tandem link to the rear of each platform side rail using holes 22, 23, and 24.
4. Install a clevis on bushing 2 of each front tandem link.
5. Install a clevis on bushing 4 of each rear tandem link.
6. Starting at the front of each platform side rail, install clevises on the bushings bolted to holes
8, 16, 17, and 20.
7. Starting at the front of the platform, number the clevises 1 through 6 on the right side and 1A
through 6A on the left side.
8. Label the tie-down rings according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
Figure 5-2. Platform Prepared
5-2
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 400-Gallon Water Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
BUILDING AND POSITIONING HONEYCOMB STACKS
5-3. Build the honeycomb stacks as shown in Figures 5-3 through 5-6. Position the stacks as shown in
Figure 5-7.
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
36
8
28
7
4
11
2
5
4
4
2
36
40
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
1
10
40
36
Honeycomb
Stack and glue pieces flush.
1
36
36
Honeycomb
Stack flush and center.
1
28
11
Honeycomb
Place as shown.
2
5
11
Honeycomb
Place as shown.
1
28
7
Honeycomb
Place as shown.
2
5
7
Honeycomb
Place as shown.
1
28
8
Honeycomb
Place as shown.
2
5
8
Honeycomb
Place as shown.
Figure 5-3. Honeycomb Stack 1 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
5-3
Chapter 5
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
20
48
12
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
2
6
48
12
Honeycomb
Glue flush to form a base.
1
20
12
Honeycomb
Center and Glue on top of the base.
Figure 5-4. Honeycomb Stack 2 Prepared
5-4
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 400-Gallon Water Trailer on a 12-Foot, Type V Platform for Low-Velocity Airdrop
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
¾ X 18 X 24
PLYWOOD
24
18
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
3
10
24
18
Honeycomb
Glue flush to form a base.
1
24
18
¾ inch
Glue flush on the base.
Plywood
1
24
18
Honeycomb
Glue flush on plywood.
Figure 5-5. Honeycomb Stack 3 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
5-5
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