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Chapter 2
STOWING CARGO PARACHUTES
2-12. 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 2-23.
1
2
7
1 Prepare, position, and stow two G-11B cargo parachutes according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
2 Install type VIII nylon webbing cargo parachute restraint strap according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5. Use tie-down clevis 7
and 7A.
Figure 2-23. Cargo Parachutes Stowed
2-32
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the M101, M101A1, or M101A2, ¾-Ton Cargo Trailer for Low-Velocity Airdrop
INSTALLING THE EXTRACTION SYSTEM
2-13. Install the extraction force transfer coupling
(EFTC) extraction 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 2-24.
1
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 front mounting holes for the EFTC brackets.
Install an actuator, with a 12-foot cable, to the EFTC mounting brackets according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.Safety tie the cable to
tie-down ring D6 and several other convenient points with type I, ¼-inch cotton webbing.
2 Attach a 9-foot (2-loop), type XXVI nylon sling to be used as a deployment line according to
FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
3 Fold the excess deployment line, and secure the folds in place according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
Figure 2-24. Extraction System Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
2-33
Chapter 2
INSTALLING THE RELEASE SYSTEM
2-14. Prepare the M-1 cargo parachute release assembly according to FM
4-20.102/MCRP
4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5. Install the release assembly as shown in Figure
2-25.
3
2
1
2
4
1 Place the M-2 cargo parachute release assembly on top of the accompanying load and install
it according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
2 Attach the riser extensions to the upper suspension links and the suspension slings to the
lower suspension links of the M-1 parachute release assembly.
3 Safety tie the top of the release assembly with type III nylon cord according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
4 Safety tie the bottom of the release assembly with type III nylon cord according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
Figure 2-25. M-2 Cargo Parachute Release Assembly Installed
2-34
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the M101, M101A1, or M101A2, ¾-Ton Cargo Trailer for Low-Velocity Airdrop
INSTALLING PROVISIONS FOR EMERGENCY RESTRAINTS
2-15. Install the provisions for emergency restraints on the load according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
PLACING EXTRACTION PARACHUTE
2-16. 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. Rig the extraction
line in an extraction line bag according to TM 10-1670-286-20/TO 13C5-2-41. Place the extraction
parachute and extraction line on the load for installation in the aircraft.
MARKING RIGGED LOAD
2-17. 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 2-26. 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
2-18. Use the equipment listed in Table 2-1 to rig this load.
27 March 2009
FM 4-20.113/TO 13C7-3-51
2-35
Chapter 2
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
5,920 pounds
Maximum Allowed
8,000 pounds
Height
72 inches
Width
108 inches
Overall Length
163 inches
Overhang: Front
0
Rear
0
Center of Balance (CB) (from front edge of the platform)
70 inches
Extraction System with 12-foot cable (adds 18 inches to the length of the load)
Figure 2-25. M101A2, ¾-Ton Trailer and Accompanying Load on a Type V Platform Rigged for
Low-Velocity Airdrop
2-36
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the M101, M101A1, or M101A2, ¾-Ton Cargo Trailer for Low-Velocity Airdrop
Table 2-1. Equipment Required for Rigging the M101, M101A1, and M101A2, ¾ Ton Cargo
Trailer 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
4030-00-678-8562
Clevis, suspension, 3/4-inch (medium)
4
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 wadding)
As required
8305-00-958-3685
Felt, 1/2-inch thick
As required
1670-00-003-4391
Knife, miniature, cutter
1
1670-01-183-2678
Leaf, extraction line (line bag) ( add 2 for C-17)
2
Line extraction:
1670-01-064-4452
60-foot (1-loop), type XXVI (for C-130)
1
1670-01-107-7652
160-foot (1-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- 96-inch
1
5510-00-220-6148
2- by 6- by 96-inch
3
5510-00-220-6250
2- by 12- by 96-inch
1
5315-00-753-3885
Nail, steel, common, 16D
As required
1670-00-753-3928
Pad, energy-dissipating (honeycomb)
20 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, 12-foot:
1670-01-162-2372
Clevis assembly (type V)
20
1670-01-162-2376
Extraction bracket assembly
1
1670-01-162-2381
Tandem link assembly (Multipurpose link)
4
5530-00-128-4981
Plywood, 3/4-inch
1 sheet
27 March 2009
FM 4-20.113/TO 13C7-3-51
2-37
Chapter 2
Table 2-1. Equipment Required for Rigging the Type I, D-5B Tractor-Dozer for Low-Velocity
Airdrop (Continued)
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
3
1670-01-063-7761
16-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
55
1670-01-483-8259
Towplate release mechanism (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
8305-00-263-3591
Nylon, type VIII
As required
8305-00-268-2455
Nylon, tubular, 1-inch, OD 7
As required
2-38
FM 4-20.113/TO 13C7-3-51
27 March 2009
Chapter 3
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
DESCRIPTION OF THE LOAD
3-1. The M1101 HMT-L (Figure 3-1) is rigged on a 12-foot, type V airdrop platform using two G-11-B
cargo parachutes. The M1101 HMT-L is 99 ½ inches high (reducible to 52 ½ inches), 87 ½ inches wide,
135 inches long, and weighs 1,360 pounds. The trailer must be rigged with an accompanying load. The
accompanying load must not weigh more than 2,040 pounds. The accompanying load shown in this
chapter consists of 18 ammunition boxes weighing approximately 1,800 pounds.
Figure 3-1. M1101 HMT-L ¾-Ton Trailer
27 March 2009
FM 4-20.121/TO 13C7-6-21
3-1
Chapter 3
PREPARING PLATFORM
3-2. Prepare a 12-foot, type V airdrop platform as shown in Figure 3-2.
CLEVISES 4A THROUGH 1A
REAR
FRONT
CLEVISES 4 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 each platform side rail using bushing holes 1, 2, and 3.
3. Install a suspension bracket assembly to each platform side rail using bushing holes 18, 19,
and 20.
4. Starting at the front of each platform side rail, install clevises on the bushings bolted to holes
4, 6, 9, and 23.
5. Starting at the front of the platform, number the clevises 1 through 4 on the right side and 1A
through 4A on the left side
6. 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 3-2. Platform Prepared
3-2
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
BUILDING AND POSITIONING HONEYCOMB STACKS
3-3. Build the honeycomb stacks as shown in Figures 3-3 and 3-4. Position the stacks as shown in Figure
3-5.
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
7
4
20
24
24 X 44 X ¾
12 X 44 X ¾
PLYWOOD
PLYWOOD
2 X 4 X 24
LUMBER
REAR
FRONT
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
1
4
22
42
Honeycomb
Glue two pieces together to form two
stacks of two pieces of honeycomb.
Place the stacks flush together along
the 42-inch side forming a 42- by 44-
inch base.
3
44
12
Honeycomb
Glue the pieces flush on the rear edge
of the stack.
3
44
24
Honeycomb
Glue the pieces flush on the front edge
of the stack.
2
22
42
Honeycomb
Glue the pieces on top of the stack with
the 22-inch sides flush along the 44-
inch side of the stack.
2
44
12
Honeycomb
Glue the pieces flush on the rear edge
of the stack.
2
44
24
Honeycomb
Glue the pieces flush on the front edge
of the stack.
Figure 3-3. Honeycomb Stack 1 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-3
Chapter 3
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
1
2
22
42
Honeycomb
Glue the pieces on top of the stack with
the 22-inch sides flush along the 44-
inch
side of the stack.
2
44
12
Honeycomb
Glue the pieces flush on the rear edge
of the stack.
2
44
24
Honeycomb
Glue the pieces flush on the front edge
of the stack.
1
44
12
Honeycomb
Cut a 4- by 7-inch cutout, 20 inches
from the end of the honeycomb. Glue
the honeycomb flush on the rear of the
stack with the cutout toward the rear.
2
44
12
¾-Inch
Plywood
Cut a 4- by 7-inch cutout, 20 inches
from the end of the plywood. Glue the
plywood flush on the rear of the stack
with the cutout toward the rear.
4
44
24
¾-Inch
Plywood
Glue two pieces of 44- by 24- by ¾-inch
plywood together flush.
5
24
2- by 4-Inch
Lumber
Nail a 2- by 4- by 24-inch piece of
lumber flush along each 24-inch side of
the plywood. Nail a third piece of 2-by
4- by 24-inch lumber centered between
the outside pieces of lumber. Nail the
remaining two pieces of 2- by 4- by 24-
inch lumber 11 ½ inches in from each
24 inch side of the plywood.
Figure 3-3 Honeycomb Stack 1 Prepared (Continued)
3-4
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
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
2 X 6 X 18
LUMBER
10 X 24 X ¾
10 X 24 X ¾
PLYWOOD
PLYWOOD
17
17
26
66
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
2
3
66
26
Honeycomb
Cut the three pieces as shown
above. Use one piece as the base
and place the others to the side.
14
10
24
Honeycomb
Glue four pieces together to form
two stacks of two layers. Glue the
stacks with the 24-inch side flush
along the 26-inch side and back
corner of the base.
Glue another 26- by 66-inch piece of
honeycomb, flush on top of the
stack.
Glue six pieces together to form two
stacks of three layers. Glue the
stacks with the 24-inch side flush
along the 26-inch side and back
corner of the base.
Figure 3-4. Honeycomb Stack 2 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-5
Chapter 3
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
2
Glue t 26- by 66-inch piece of
honeycomb, flush on top of the stack
Glue four pieces together to form
two stacks of two layers. Glue the
stacks with the 24-inch side flush
along the 26-inch side and back
corner of the base.
2
10
24
¾-Inch
Plywood
4
18
2- by 6-Inch
Center two pieces of lumber, flush,
Lumber
with the 6 inch side of the lumber
along the 10 inch side of the
plywood. Make two stacks. Glue
the lumber stacks on top of the two
pieces of honeycomb.
Figure 3-4. Honeycomb Stack 2 Prepared (Continued)
STACK 2
STACK 1
REAR
FRONT
24
11
Step:
1. Position stack 1 centered and 24 inches from the front edge of the platform. Ensure the
4- by 7-inch cutout faces the rear of the load.
2. Position stack 2 centered and 7 ½ inches from the rear edge of stack 1.
Figure 3-5. Honeycomb Stacks Positioned on Platform
3-6
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
PREPARING THE TRAILER AND ACCOMPANYING LOAD
ENDBOARDS
3-4. Prepare the trailer as shown in Figure 3-6. Build and position the accompanying load endboards as
shown in Figures 3-7 and 3-8.
3
6
6
5
4
1
1 Lower the front support leg.
2 Remove the tarp and bows and set aside (not shown).
3 Remove the third from the front bow support bracket. Tape the nuts and bolts to the bracket
itself and set aside.
4 Install the support legs on the rear of the trailer.
5 Engage the parking brakes.
6 Tape all lights and reflectors.
Figure 3-6. Trailer Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-7
Chapter 3
8
9
7
7 Safety-tie the chain hook to themselves using a length of type III, nylon cord. Secure the
excess chain to the drawbar with type III nylon cord.
8 Pad the electrical cable coupler with cellulose padding and tape. Secure the coupler to
the drawbar with type III, nylon cord.
9 S-fold the break-away cable and secure the excess cloth-backed tape. Secure the cable
to the drawbar with type III, nylon cord.
Figure 3-6. Trailer Prepared (Continued)
3-8
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
Note. All measurements are given in inches.
12
10
10
11
7
7
10 Starting at the front of the trailer, number the tie-down provisions 1A through 6A on the
right side of the trailer bed and 1B through 6B on the left side of the trailer.
11 Place two 36- by 86-inch pieces of honeycomb stacked, centered and flush against the
bulkhead (front of the trailer).
12 Center the 30-foot lashings 7-inches from each 86-inch edge on the honeycomb. Roll the
excess lashing and place on top of the bulkhead and tailgate.
Figure 3-6. Trailer Prepared (Continued)
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-9
Chapter 3
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
3. Do not nail the plywood pieces together.
TOP
3
3
7
3
30 X 40 X ¾
3
PLYWOOD
30
1
7
3
4
40
BOTTOM
1 Cut four 30- by 40- by ¾-inch plywood endboards as shown.
2 Pad the cutouts with cellulose padding and tape (not shown).
Figure 3-7. End Boards Built
3-10
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
1
3
2
1 Center two endboards on the base stack of honeycomb and against the front of the
trailer.
2 Route a 30-foot lashing through the bottom cutouts of the endboards from front to rear.
Tape the lashing to the front of the endboard to temporarily hold it in place.
3 Place a 30- by 36-inch piece of honeycomb centered against the rear of the endboard.
Figure 3-8. Front End Board Positioned
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-11
Chapter 3
POSITION THE ACCOMPANYING LOAD IN THE TRAILER
3-5. Stow the accompanying load of 24 ammunition boxes in the trailer as shown in Figure 3-9 through
3-11. The accompanying load must not weigh more than 2,040 pounds. 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 are 1,800 pounds of 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
2
1 Route a 15-foot lashing through trailer tiedown ring 1A to a point 8 inches from the D-
ring, over the previously positioned honeycomb, and through trailer tie-down ring 1B.
2 Repeat step one for trailer tiedown rings 2A and 2B, 3A and 3B, 4A and 4B, 5A and 5B,
and 6A and 6B.
Figure 3-9. Lashings Pre-Positioned on the Trailer Bed
3-12
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
4
3
2
1
1 Center six ammunition boxes on top of the honeycomb in the trailer bed and flush against
the honeycomb of the front endboards.
2 Center six ammunition boxes on top of the first layer of ammunition boxes.
3 Center six ammunition boxes on top of the second layer of ammunition boxes.
4 Center six ammunition boxes on top of the third layer of ammunition boxes.
Figure 3-10. Accompanying Load Positioned
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-13
Chapter 3
1
2
3
4
6
5
1 Place a 36- by 74- by ¾-inch piece of plywood lengthwise on top of the ammunition
boxes. Pad the plywood with cellulose padding and tape where the lashings cross the
plywood.
2 Route the running end of the pre-positioned lashing from trailer tie-down provision 1B up
through the carrying handles of the ammunition stack, over the top of the plywood, down
through the carrying handles on the opposite side and secure with a D-ring and load
binder.
3 Repeat step two for the pre-positioned lashings at 2B to 2A, 3B to 3A, 4B to 4A, 5B to
5A, and 6B to 6A.
4 Place a 30- by 36-inch piece of honeycomb flush against the rear of the ammunition
boxes.
5 Position the two remaining endboards centered and flush against the rear of the
honeycomb piece.
6 Route the pre-positioned 30-foot lashing on the right side, beneath the ammunition stack,
over the front and rear endboards and secure on top of the load using two D-rings and a
load binder. Repeat for the pre-positioned lashing on the left side of the ammunition
stack.
Figure 3-11. Accompanying Load Secured
3-14
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
LASH THE AMMUNITION IN THE TRAILER
3-6. Lash the accompanying load of 24 ammunition boxes in the trailer as shown in Figures 3-12 through
3-14.
1
1 Attach a type V, platform clevis to each trailer tie-down provision. Face the clevises on
1A, 2A, 3A, 1B, 2B and 3B toward the rear of the trailer. Face the clevises on 4A, 5A,
6A, 4B, 5B and 6B toward the front of the trailer.
Figure 3-12. Type V Platform Clevises Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-15
Chapter 3
6
3
5
2
1
4
1A
6A
5A
4A
3A
2A
Lashing
Trailer
Instructions
Number
Tiedown
Ring Number
1
4A and 4B
Route the pre-positioned 30-foot lashing from the bottom cutouts of the
front endboards to the trailer tiedown rings. Secure the ends to the tie-
down rings with a D-ring and loadbinder.
2
5A and 5B
Route a 30-foot lashing from the center cutouts of the front endboards
to the trailer tiedown rings. Secure the ends to the tiedown rings with
a D-ring and loadbinder.
3
6A and 6B
Route a 30-foot lashing from the center cutouts of the front endboards
to the trailer tiedown rings. Secure the ends to the tiedown rings with
a D-ring and loadbinder.
4
3A and 3B
Route a 30-foot lashing from the bottom cutouts of the rear endboards
to the trailer tiedown rings. Secure the ends to the tiedown rings with
a D-ring and loadbinder.
5
2A and 2B
Route a 30-foot lashing from the center cutouts of the rear endboards
to the trailer tiedown rings. Secure the ends to the tiedown rings with
a D-ring and loadbinder.
6
1A and 1B
Route a 30-foot lashing from the top cutouts of the rear endboards to
the trailer tiedown rings. Secure the ends to the tiedown rings with a
D-ring and loadbinder.
Figure 3-13. Lashings 1 through 6 Installed on Accompanying Load
3-16
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
8
7
7
Lashing
Trailer
Instructions
Number
Tiedown
Ring Number
7
1A and 6A
Pass a 15-foot lashing through trailer tie-down 1A and back through its
own D-ring. Route the lashing through the bottom right cutout of the
front endboard, across the front endboard, and through the top left
cutout of the front endboard. Pass a 15-foot lashing through trailer tie-
down 6A and back through its own D-ring. Route the lashing through
the bottom right cutout of the rear endboard, across the rear endboard,
and through the top left cutout of the rear endboard. Secure the
running ends of the lashings centered on the left side using two D-
rings and a load binder.
8
1B and 6B
Pass a 15-foot lashing through trailer tie-down 1B and back through its
own D-ring. Route the lashing through the bottom left cutout of the
front endboard, across the front endboard, and through the top right
cutout of the front endboard. Pass a 15-foot lashing through trailer tie-
down 6B and back through its own D-ring. Route the lashing through
the bottom left cutout of the rear endboard, across the rear endboard,
and through the top right cutout of the rear endboard. Secure the
running ends of the lashings centered on the right side using two D-
rings and a load binder.
Figure 3-14. Lashings 7 and 8 Installed on Accompanying Load
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-17
Chapter 3
POSITIONING AND SECURING THE BOWS AND TARP AND
PREPARING THE TRAILER
3-7. Position and secure the bows and tarp as shown in Figure 3-15. Finish preparing the trailer as shown
in Figure 3-16
2
3
1
1 Tie the support bows together with type III, nylon cord. Pad and tape the ends of the
bows with cellulose padding and tape. Tie the support bows on top of the load with type
III nylon cord.
2 Fold the tarp to approximately 32-inches wide and 44-inches in long. Place the
previously removed bow support brackets inside the tarp. Place the tarp between the
support bows on the rear of the stack and secure with type III nylon cord.
3 Place two 36- by 34-inch pieces of honeycomb between the bows to the front of the tarp.
Secure the honeycomb to load with type III, nylon cord. Tape the edges of the
honeycomb where the type III nylon cord makes contact.
Figure 3-15. Support Bows and Tarp Positioned and Secured
3-18
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
1
2
3
1 Close the tailgate and secure the safety pin to itself by routing type III, nylon cord through
the O-ring and back through the safety pin. Ensure the pin does not move once secured.
2 Remove the rear trailer supports and replace them in their stowage racks on the front of
the trailer. Secure the rear supports with type III, nylon cord.
3 Disengage the hand brakes to the “OFF” position. Secure the hand brakes in place with
type III, nylon cord.
Figure 3-16. Trailer Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-19
Chapter 3
Note. All measurements are given in inches.
6
4
16
7 1/2
5
4 Place a 14- by 86-inch piece of honeycomb flush with the top of the front of the trailer.
5 Make a 7 ½- high by 16-inches long cutout, centered on the bottom edge, of a 22 ½- by
86-inch piece of honeycomb. Place the honeycomb flush with the top of the honeycomb
in step 4.
6 Make a 7 ½- high by 16-inches long cutout, centered on the bottom edge, of a 22 ½- by
86- by ¾-inch piece of plywood. Place the plywood flush with the top of the honeycomb
in step 5. Secure all the pieces of honeycomb and plywood with several lengths of type
III nylon cord to places on the load.
Figure 3-16. Trailer Prepared (Continued)
3-20
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
LIFTING AND POSITIONING THE TRAILER
3-8. Install the lifting slings and position the trailer as shown in Figures 3-17 and 3-18.
4
2
3
5
1
1 Attach two large suspension clevises to each rear lifting provision.
2 Attach a 12-foot (2-loop), type XXVI nylon webbing sling to each clevis at the rear of the
trailer.
3 Pass a 3-foot (2-loop), type XXVI, nylon sling through the lunette of the trailer. Place both
ends of the 3-foot sling on a large clevis.
4 Attach a 12-foot (2-loop), type XXVI nylon webbing sling to the large clevis 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).
5 Lift the load and raise the front support leg and secure it to the drawbar in several places with
type III nylon cord.
Figure 3-17. Trailer Lifting Slings Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-21
Chapter 3
1
2
1 Position the trailer centered on the platform from side to side with the axle centered between
the 6-inch cutout of honeycomb stack 1.
2 Position the trailer drawbar centered on honeycomb stack 2.
3 Remove the lifting slings and large suspension clevises (not shown).
Figure 3-18. Trailer Positioned
3-22
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
INSTALLING SIDE BOARDS
3-9. Install the side boards as shown in Figure 3-19.
1
5
2
4
3
1 Cut two, 2- by 6- by 77-inches pieces of lumber to be used as side boards. Cut six, 6- by 10-
inch pieces of honeycomb. Position two of the honeycomb pieces flush along each end of the
lumber piece and secure with tape. Center the third honeycomb piece on each piece of
lumber and secure with tape.
2 Position each side board flush along the side of the trailer centered below the front and rear
tarp eyelets.
3 Route a 30-foot lashing under the trailer frame at the front of the trailer, double wrap the
lashing around the 2- by 6-inch lumber alternating wraps on the left and right, and secure on
the right side on top of the load, using two D-rings and a loadbinder.
4 Route a 30-foot lashing under the trailer frame behind the rear wheel well, double wrap the
lashing around the 2- by 6-inch lumber alternating wraps on the left and right, and secure on
top of the load, using two D-rings and a loadbinder.
Note. Do not route the lashing over the brake lines or electrical wiring.
5 Pad the bow support brackets on the left and right side of the trailer with felt and tape.
Figure 3-19. Side Boards Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-23
Chapter 3
LASHING LOAD TO PLATFORM
3-10. 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 3-20.
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.
2
3
1
2
1
Lashing
Clevis
Instructions
Number
Number
Pass lashing:
1
1
Through the trailers right rear shackle.
2
1A
Through the trailers left rear shackle.
3
2
Through the trailers left front shackle.
4
2A
Through the trailers right front shackle.
Figure 3-20. Trailer Lashed to Platform
3-24
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
Note. Left, right, front, and rear refer to the trailer, NOT the platform.
6
7
4
5
3
Lashing
Clevis
Instructions
Number
Number
Pass lashing:
5
3
Through the trailers left rear shackle.
6
3A
Through the trailers right rear shackle.
7
4
Through the trailers left front shackle.
8
4A
Through the trailers right front shackle.
Figure 3-20. Trailer Lashed to Platform (Continued)
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-25
Chapter 3
BUILDING AND INSTALLING THE PARACHUTE STOWAGE
PLATFORM
3-11. Build the parachute stowage platform as shown in Figure 3-21. Install the parachute stowage
platform as shown in Figure3-22.
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
3. All holes are 2 inches in diameter.
4. Use 8d nails.
2 X 4 X 35
LUMBER
2 X 4 X 25
LUMBER
3
3
REAR
FRONT
40 X 35 X ¾
PLYWOOD
35
4 X 4 X 25
LUMBER
2
6 3/4
20
40
Step:
1. Cut a 40- by 35- by ¾- inch piece of plywood. Drill six 2-inch holes as shown.
2. Nail a 2- by 4- by 25-inch piece of lumber two inches from the front edge of the plywood
and centered.
3. Nail a 2- by 4- by 35-inch piece of lumber flush and 6 ¾ inches from the rear edge of the
plywood.
4. Nail a 4- by 4- by 25-inch piece of lumber centered on the plywood. Nail a 2- by 4- by 25-
inch piece of lumber flush on top of the 4- by 4- by 25-inch lumber.
Figure 3-21. Parachute Stowage Platform Built
3-26
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
3
2
1
5
4
1 Place a 14- by 4 ½-inch piece of honeycomb inside the fuel can support bracket. Center a
14- by 7-inch piece of honeycomb on top of the first piece of honeycomb.
2 Place a 6- by 35- by ¾-inch piece of plywood centered on top of the lunette. Place two 6- by
35-inch pieces of honeycomb on top of the plywood. Secure the plywood and honeycomb in
several places with type III nylon cord. Tape the edges of the honeycomb where the type III
nylon cord makes contact.
3 Center the parachute stowage platform on top of the previously positioned pieces, flush
against the plywood on the trailer bulkhead. Ensure the 2- by 4-inch lumber on the bottom of
the platform is sitting on the honeycomb stacks. Pad the holes in the parachute stowage
platform with cellulose padding and tape.
4 Route a 15-foot lashing through platform tiedown ring A5, through the right front hole of the
stowage platform, over the top, down through the center hole, and secure to itself using a D-
ring and loadbinder. Repeat this step on the left side using tiedown ring B5.
5 Route a 15-foot lashing through platform tiedown ring B6, through the right front hole of the
stowage platform, over the top, down through the center hole, and secure to itself using a D-
ring and loadbinder. Repeat this step on the left side using tiedown ring C6.
Figure 3-22. Parachute Stowage Platform Secured
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-27
Chapter 3
INSTALLING AND SAFETY TIEING THE SUSPENSION SLINGS
3-12. 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 3-23.
3
4
2
1
1
1 Attach a 12-foot (2-loop), type XXVI nylon sling to each tandem link and suspension bracket
using a large suspension clevis.
2 Wrap a 12-by 36-inch piece of felt around each sling 28 inches from the large suspension
clevis. 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.
3 Install the deadman’s tie according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
4 Safety tie the suspension slings to the body protection boards using type III nylon cord.
Figure 3-23. Suspension Slings Installed and Safety Tied
3-28
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
STOWING CARGO PARACHUTES
3-13. 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 3-24.
1
3
2
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 according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 using bushings 16 and
16A.
3 Install a parachute release strap according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-
AB-MMO-010/TO 13C7-1-5.
Figure 3-24. Cargo Parachutes Positioned and Restrained
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-29
Chapter 3
INSTALLING PARACHUTE RELEASE SYSTEM
3-14. 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 3-25.
2
5
1
3
3
5
6
4
6
1 Center an M-1 parachute release assembly on top of the honeycomb.
2 Attach the parachute riser extensions to the parachute release connectors.
3 Attach the suspension slings to the lower suspension links.
4 Fold the excess suspension slings and safety tie with type I, ¼-inch cotton webbing.
5 Tie the parachute release safety ties to convenient points on the load.
6 S-fold the slack in the deadman and secure with one turn of masking tape.
Figure 3-25. M-1Parachute Release Installed
3-30
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
INSTALLING EXTRACTION SYSTEM
3-15. Install the extraction system as shown in Figure 3-26.
1
2
D6
3
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 front 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. S-fold and
secure the excess deployment line with two ties of ¼-inch cotton webbing.
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 3-26. Extraction System Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
3-31
Chapter 3
PLACING EXTRACTION PARACHUTE
3-16. 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
3-17. 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
3-18. 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 3-27. 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
3-19. Use the equipment listed in Table 3-1 to rig this load.
3-32
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
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
5,820 pounds
Max Weight Load
6,060 pounds
Height
91 ½ inches
Width
108 inches
Overall Length
163 inches
Overhang: Front
0 inches
Rear (Parachute Stowage Platform)
19 inches
Center of Balance (CB) (from front edge of the platform)
69 inches
Extraction System with 16-foot cable (adds 0 inches to the length of the load)
Figure 3-27. M1101 HMT-L ¾-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
3-33
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