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Chapter 8
1
3
2
TIEDOWN
TIEDOWN
PROVISION 6
PROVISION 5
1 Center the spare tire on the rear of the trailer deck between tiedown provisions 5 and 6.
2 Pass a 15-foot lashing through the left tiedown provisions 5 and 6 and through the wheel.
Place cellulose wadding under each tiedown lashing where it touches the trailer and the
center of the tire. Secure the lashing with a D-ring and load binder.
3 Repeat step two for the right side of the trailer.
Figure 8-10. Spare Tire Stowed
8-10
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-Foot, Type V Platform for Low-Velocity Airdrop
Note. All measurements are given in inches.
36
36
6 x 12
HONEYCOMB
36
2 X 6 156
LUMBER
Step:
1. Cut one 2- by 6- by 156-inch piece of lumber.
2. Cut four
6- by 12-inch pieces of honeycomb. Position the first piece of 6- by 12-inch
honeycomb on top of the 2- by 6- 156-inch piece of lumber flush with the front edge of the
lumber.
3. Position the second piece of 6- by 12-inch honeycomb on top of the lumber 36 inches from
the rear edge of the first piece of honeycomb.
4. Position the third piece of 6- by 12-inch honeycomb on top of the lumber 36 inches from the
rear edge of the second piece of honeycomb.
5. Position the fourth piece of 6- by 12-inch honeycomb on top of the lumber flush with the rear
edge of the lumber.
6. Tape each piece of honeycomb to the lumber in two places.
7. Repeat steps 1 through 6 to prepare the second body protection board.
Figure 8-11. Body Protection Boards Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
8-11
Chapter 8
1
3
2
TIEDOWN
TIEDOWN
PROVISION 5
PROVISION 2
1 Position a body protection board 8 inched from the front edge of the trailer on each side.
2 Pass a 15-foot lashing through the left tiedown provision 25 and through its own D-ring.
Repeat the procedure for the other side of the trailer. Secure the lashings with D-ring and a
load binder.
3 Repeat step two using tiedown provision 5.
Figure 8-12. Body Protection Boards Secured
8-12
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-Foot, Type V Platform for Low-Velocity Airdrop
LIFTING AND POSITIONING THE TRAILER
8-5. Install the lifting slings and position the trailer as shown in Figure 8-13.
3
2
1
4
TIEDOWN
TIEDOWN
PROVISION 6
PROVISION 2
1 Attach a 12-foot (2-loop), type XXVI nylon sling to tiedown provision 2 on each side of the
trailer with a large suspension clevis.
2 Attach a 12-foot (2-loop), type XXVI nylon sling to tiedown provision 6 on each side of the
trailer with a large suspension clevis.
3 Pass a 3-foot (2-loop), type XXVI nylon sling through the end loops of the slings installed in
step 2. Join the ends of the 3-foot sling with a 2-point link.
4 Position the trailer on the honeycomb stacks so the rear of the trailer is flush with the front of
the platform and the front of the trailer overhangs the rear of the platform 4 to 6 inches.
5 Remove the lifting slings (not shown).
Figure 8-13. Trailer Lifted and Positioned on Platform
27 March 2009
FM 4-20.113/TO 13C7-3-51
8-13
Chapter 8
LASHING TRAILER TO PLATFORM
8-6. Lash the 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 Figures 8-14 through 8-16.
Note. Pad any sharp edges on the load where a lashing may pass.
Note. Left, right, front, and rear refer to the trailer, NOT the platform.
2
1
1A
1
Lashing
Tie-down
Instructions
Number
Clevis Number
Pass lashing:
1
1
Through the right top lifting provision at the rear of the trailer.
2
1A
Through the left top lifting provision at the rear of the trailer
Figure 8-14. Lashings 1 and 2 Installed
8-14
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-Foot, Type V Platform for Low-Velocity Airdrop
Note. Left, right, front, and rear refer to the trailer, NOT the platform.
TIEDOWN
TIEDOWN
TIEDOWN
TIEDOWN
PROVISION 1 PROVISION 3 PROVISION 4 PROVISION 5
7
3
9
5
11
4
3
2
6
5
Lashing
Tie-down
Instructions
Number
Clevis Number
Pass lashing:
3
2
Through left tiedown provision 5.
4
2A
Through right tiedown provision 5.
5
3
Through left tiedown provision 3.
6
3A
Through right tiedown provision 3.
7
4
Through left tiedown provision 5.
8
4A
Through right tiedown provision 5.
9
5
Through left tiedown provision 4.
10
5A
Through right tiedown provision 4.
11
6
Through left tiedown provision 1.
12
6A
Through right tiedown provision 1.
Figure 8-15. Lashings 3 through 12 Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
8-15
Chapter 8
Note. Left, right, front, and rear refer to the trailer, NOT the platform.
14
13
7A
7
Lashing
Tie-down
Instructions
Number
Clevis Number
Pass lashing:
13
7
Through lunette.
14
7A
Through lunette.
Figure 8-16. Lashings 13 and 14 Installed
8-16
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-Foot, Type V Platform for Low-Velocity Airdrop
INSTALLING AND SAFETY TIEING THE SUSPENSION SLINGS
8-7. Install and safety tie the suspension slings as shown in Figure 8-17.
2
7
3
1
4
6
6
5
1 Attach a 12-foot (2-loop), type XXVI nylon sling to each front suspension bracket with a large
suspension clevis.
2 Connect a 3-foot (3-loop), type XXVI nylon sling to each 12-foot sling with a 3 ¾-inch two-
point link.
3 Attach a 16-foot (2-loop), type XXVI nylon sling to each rear suspension bracket with a large
suspension clevis.
4 Raise the slings and install a deadman’s tie on the suspension slings as shown in FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
5 Pad each suspension sling where it makes contact with the load box with felt and tape.
6 Secure all suspension slings to the body protection boards with type III nylon cord.
7 Pad each 3 ¾-inch two-point link with a 10- by 8-inch piece of felt and tape.
Figure 8-17. Suspension Slings Installed and Safety Tied
27 March 2009
FM 4-20.113/TO 13C7-3-51
8-17
Chapter 8
PREPARING THE PARACHUTE STOWAGE PLATFORM
8-8. Prepare the honeycomb support stacks for the parachute stowage platform as shown in Figure 8-18.
Construct the parachute stowage platform as shown in Figure 8-19. Secure the parachute stowage platform
as shown in Figure 8-20.
Note. All measurements are given in inches.
1
2
23
1 Form two support stacks with eighteen 12- by 32-inch pieces of honeycomb in each stack.
2 Position each support stack flush with the rear edge of the platform and 23 inches from each
side rail.
Figure 8-18. Parachute Stowage Platform Support Stacks Prepared
8-18
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-Foot, Type V Platform for Low-Velocity Airdrop
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
3. All holes are 2-inches in diameter.
2
2
2 X 4 X 60 LUMBER
24
¾ X 48 X 60
PLYWOOD
2” HOLES
1
2 X 4 X 60 LUMBER
1 Build the parachute stowage platform as shown.
Figure 8-19. Parachute Stowage Platform Built
27 March 2009
FM 4-20.113/TO 13C7-3-51
8-19
Chapter 8
1
2
3
A11
A12
1 Place the parachute stowage platform on the honeycomb supports with the 2- by 4- by 60-
inch pieces of lumber facing down and parallel to the front of the load.
2 Route a 15-foot lashing through the front and center holes of the parachute stowage platform
and through tiedown ring A11. Secure the lashing with a D-ring and load binder. Repeat the
procedure on the left side using tiedown ring B11.
3 Route a 15-foot lashing through the rear and center holes of the parachute stowage platform
and through tiedown ring A12. Secure the lashing with a D-ring and load binder. Repeat the
procedure on the left side using tiedown ring D12.
Figure 8-20. Parachute Stowage Platform Installed
8-20
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-Foot, Type V Platform for Low-Velocity Airdrop
STOWING CARGO PARACHUTES
8-9. Prepare, stow, and restrain three 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 8-21.
1
3
2
44
6
1 Position three 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 the front parachute restraint strap using type VIII nylon webbing on bushings 44 and
44A.
3 Install the rear parachute restraint strap using type VIII nylon webbing on clevis 6 and 6A.
4 Install the parachute release strap according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5.
Figure 8-21. Cargo Parachutes Positioned and Restrained
27 March 2009
FM 4-20.113/TO 13C7-3-51
8-21
Chapter 8
INSTALLING PARACHUTE RELEASE SYSTEM
8-10. 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 8-22.
6
3
2
4
6
1
5
1 Center a 36- by 36-inch pieces of honeycomb 24 inches from the front edge of the trailer bed.
Tape the edges of the honeycomb and secure the honeycomb in place 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 front and rear M-1 parachute release safety ties to convenient points on the load with
type III nylon cord.
Figure 8-22. M-1 Parachute Release Installed
8-22
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-Foot, Type V Platform for Low-Velocity Airdrop
INSTALLING EXTRACTION SYSTEM
8-11. Install the extraction system as shown in Figure 8-23.
3
1
4
2
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.
3 Use a 24-foot cable and safety tie the cable to the platform clevises with type I, ¼-inch cotton
webbing.
4 Secure the excess deployment line with type I, ¼-inch cotton webbing.
Figure 8-23. Extraction System Installed
27 March 2009
FM 4-20.113/TO 13C7-3-51
8-23
Chapter 8
PLACING EXTRACTION PARACHUTE
8-12. 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
8-13. 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
8-14. 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 8-24. 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
8-15. Use the equipment listed in Table 8-1 to rig this load.
8-24
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-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
12,350 pounds
Maximum Weight Load
15,750 pounds
Height
90 inches
Width
108 inches
Overall Length
306 inches
Overhang: Front
0
Rear
0 inches
Center of Balance (CB) (from front edge of the platform)
146 inches
Extraction System with 24-foot cable (adds 18 inches to the length of the load)
Figure 8-24. 15-Ton Trailer Rigged on a 24-Foot, Type V Platform for Low-Velocity Airdrop
27 March 2009
FM 4-20.113/TO 13C7-3-51
8-25
Chapter 8
Table 8-1. Equipment Required for Rigging the 15-Ton Trailer on a 24-Foot, Type V Platform
for Low-Velocity Airdrop
National
Item
Quantity
Stock Number
8040-00-273-8713
Adhesive paste, 1-gal.
As required
1670-01-035-6054
Bridle, extraction line bag
1
4030-00-090-5354
Clevis, suspension, 1-inch (large)
8
4020-00-240-2146
Cord, nylon, type III, 550-lb
As required
1670-00-434-5782
Coupling, airdrop extraction force transfer, w/24-ft. cable
1
8135-00-664-6958
Cushioning material (Cellulose padding)
As required
8305-00-958-3685
Felt, ½-inch
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
Link assembly, two-point, small, 3 ¾-inch:
Lumber:
5510-00-220-6274
2- by 4- by 96-inch
2
5510-00-220-6148
2- by 4- by 168-inch
2
5315-00-010-4659
Nail, steel, common, 8D
As required
1670-00-753-3928
Pad, energy-dissipating (honeycomb)
21 sheets
1670-01-016-7841
Parachute, cargo, G-11B
3
Parachute, cargo, extraction:
1670-01-063-3716
22-foot
1
1670-01-063-3715
15-foot (C-17 only)
1
Platform, airdrop, type V, 24-foot:
1670-01-162-2372
Clevis assembly (type V)
14
1670-01-162-2376
Extraction bracket assembly
4
1670-01-162-2381
Tandem link assembly (Multipurpose link)
2
5530-00-128-4981
Plywood, 3/4-inch
2 sheets
8-26
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging 15-Ton Tilt Bed Trailer, on a 24-Foot, Type V Platform for Low-Velocity Airdrop
Table 8-1. Equipment Required for Rigging the 15-Ton Trailer on a 24-Foot, Type V Platform
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
2
1670-00-753-3790
9-foot (2-loop), type XXVI
1
1670-01-062-6303
12-foot (2-loop), type XXVI
4
1670-01-063-7761
16-foot (2 loop), type XXVI
2
1670-01-062-6313
60-foot (3-loop), type XXVI
3
1670-00-040-8219
Strap, parachute, release, multi-cut
2
7501-00-266-5016
Tape, adhesive, 2-inch
As required
1670-00-937-0271
Tie-down assembly, 15-foot.
23
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
8-27
This page intentionally left blank.
Chapter 9
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-
Mounted Air Compressor on a 16-Foot, Type V Platform for
Low-Velocity Airdrop
DESCRIPTION OF THE LOAD
9-1. The Ingersol-Rand model, 250-CFM, trailer-mounted air compressor (Figure 9-1) is rigged on a 16-
foot, type V airdrop platform using two G-11 cargo parachutes. The unrigged trailer weighs 7,345 pounds
with the fuel tank ½ full. The trailer is 204inches long, 77 inches high, and 96 inches wide.
Figure 9-1. Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor
27 March 2009
FM 4-20.121/TO 13C7-6-21
9-1
Chapter 9
PREPARING PLATFORM
9-2. Prepare a 16-foot, type V airdrop platform as shown in Figure 9-2.
CLEVISES 9A THROUGH 1A
REAR
FRONT
CLEVISES 9 THROUGH 1
Step:
1. Inspect, or assemble and inspect, a 16-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 clevis on bushings 1 and 2 of each front tandem link.
4. Install a tandem link to the rear of each platform side rail using holes 30, 31, and 32.
5. Install a clevis on bushings 2, 3, and 4 of each rear tandem link.
6. Starting at the front of each platform side rail, install clevises on the bushings bolted to holes
11, 12, 20, and 22.
7. Starting at the front of the platform, number the clevises 1 through 9 on the right side and 1A
through 9A 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 9-2. Platform Prepared
9-2
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
BUILDING AND POSITIONING HONEYCOMB STACKS
9-3. Build the honeycomb stacks as shown in Figures 9-3 through 9-6. Place the honeycomb stacks as
shown in Figure 9-7.
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
½ X 36 X 8
PLYWOOD
¾ X 36 X 8
PLYWOOD
FRONT
REAR
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
1
7
36
60
Honeycomb
Glue to form a base.
3
36
36
Honeycomb
Glue flush with the front edge on top of
base.
1
36
8
¾-inch
Place plywood on top of the 36- by 36-
Plywood
inch honeycomb 2 inches from the front
edge of the stack.
1
36
8
Honeycomb
Glue honeycomb flush on top of the36-
by 8-inch plywood.
2
36
8
Honeycomb
Glue plywood on top of the 36- by 36-
inch honeycomb 21 inches from the
front edge of the stack.
1
36
8
½-inch
Glue plywood on top of the 36- by 8-
Plywood
inch honeycomb 21 inches from the
front edge of the stack.
Figure 9-3. Honeycomb Stack 1 Built
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-3
Chapter 9
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
¾ X 36 X 10
¾ X 36 X 8
¼ X 36 X 10
PLYWOOD
PLYWOOD
PLYWOOD
¾ X 36 X 6
¼ X 36 X 6
PLYWOOD
PLYWOOD
FRONT
REAR
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
2
36
8
¾-inch
Glue plywood on top of the ½- by 36- by 8-
Plywood
inch plywood 21 inches from the front edge
of the stack.
1
36
8
Honeycomb
Glue honeycomb flush on top of the36- by 8-
inch plywood 21 inches from the front edge
of the stack.
2
36
6
¾-inch
Glue plywood on top of the 36- by 36-inch
Plywood
honeycomb flush against the 36- by 8-inch
honeycomb.
1
36
6
¼-inch
Glue plywood on top of the ¾- by 36- by 6-
Plywood
inch plywood.
1
36
6
Honeycomb
Glue honeycomb on top of the ¼- by 36- by
6-inch plywood.
2
36
14
Honeycomb
Glue honeycomb on top of the base flush
with the rear edge of the stack.
3
36
10
Honeycomb
Glue honeycomb on top of the 36- by 14-
inch honeycomb 2 inches from the rear
edge.
2
36
10
¾-inch
Glue plywood on top of the 36- by 10-inch
Plywood
honeycomb.
1
36
10
¼-inch
Glue plywood on top of the ¾- by 36- by 10-
Plywood
inch plywood.
1
36
10
Glue honeycomb on top of the ¼- by 36- by
10-inch plywood.
Figure 9-3. Honeycomb Stack 1 Built (Continued)
9-4
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
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
1
12
48
Honeycomb
Form base.
4
12
12
Honeycomb
Glue two pieces of honeycomb on each
end of the base flush with each edge.
3
1
12
48
Honeycomb
Form base.
4
12
12
Honeycomb
Glue two pieces of honeycomb on each
end of the base flush with each edge.
Figure 9-4. Stacks 2 and 3 Built
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-5
Chapter 9
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
STRONGBACK
¾ X 36 X 10
PLYWOOD
FRONT
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
4
6
36`
58
Honeycomb
Glue to form base.
3
36
16
Honeycomb
Glue flush on the front edge of the
honeycomb base.
3
36
10
Honeycomb
Center and glue honeycomb on top of
the 36- by 16-inch honeycomb.
2
36
10
¾-inch
Glue plywood on top of the 36- by 16-
Plywood
inch honeycomb.
1
36
10
Honeycomb
Glue honeycomb on top of the ¾- by
36- by 16-inch plywood.
2
36
24
Honeycomb
Glue flush on the rear edge of the
honeycomb base.
2
3 ½
24
2 X 4
Glue lumber on top of the 36- by 24-
Lumber
inch honeycomb lengthwise, 3inches
from each side.
Strong-
1
36
24
¾-inch
Place plywood to form base of the
back
Plywood
strongback.
4
36
3 ½
2 X 4
Evenly space lumber side-to-side on top
Lumber
of the ¾- by 36- by 24-inch plywood.
1
36
24
¾-inch
Place plywood on top of the 2- by 4- by
Plywood
36-inch lumber. Use sixpenny nails to
nail the strongback together.
Figure 9-5. Stack 4 Built
9-6
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
30
36
FRONT
Stack
Width
Length
Number
Pieces
(Inches)
(Inches)
Material
Instructions
5
1
30
36
Honeycomb
Form base.
Figure 9-6. Stack 5 Built
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-7
Chapter 9
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
10
STACK 3
56
4
R
F
E
R
STACK 5
STACK 4
40
STACK 1
O
A
R
N
T
STACK 2
56
10
Step:
1. Center stack one flush with the front edge of the platform.
2. Place stack two 56 inches from the front edge of the platform and 10 inches from the right
side rail.
3. Place stack three 56 inches from the front edge of the platform and 10 inches from the left
side rail.
4. Center stack four 40 inches from the rear edge of stack 1.
5. Center stack five 4 inches from the rear edge of the platform.
Figure 9-7. Honeycomb Stacks Positioned on Platform
9-8
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
PREPARING TRAILER
9-4. Prepare the trailer as shown in Figures 9-8 through 9-16.
1
2
3
B7
A7
4
D8
A8
1 Remove the spare tire from the drawbar and center it on honeycomb stack 5.
2 Route a 15-foot lashing through tiedown ring A7and around the tie. Secure the lashing with a
D-ring and load binder.
3 Route a 15-foot lashing through tiedown ring B7and around the tie. Secure the lashing with a
D-ring and load binder.
4 Route a 15-foot lashing through tiedown ring D8, through its own D-ring, over and under the
tire, to tiedown ring A8. Secure the lashing to tiedown ring A8 with a D-ring and load binder.
Figure 9-8. Spare Tire Lashed to Platform
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-9
Chapter 9
1
5
4
3
2
1 Tape all lights and reflectors on the trailer.
2 Lower the front jack stand and lock it in place.
3 Place the hand brakes in the released position.
4 Tie the chains and air hoses to the trailer tongue with type III nylon cord.
5 Tie the intervehicular cable to the trailer tongue with type III nylon cord.
Figure 9-9. Front of Trailer Prepared
9-10
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
2
1
3
4
1 Tie the two eighty pound breakers in place with type III nylon cord.
2 Tie the two tamping feet with type III nylon cord.
3 Tie the six chisels together with type III nylon cord. Pad the chisels with cellulose wadding
and tape.
4 Tape the fuel nozzle in place in the left engine compartment.
Figure 9-10. Left Engine Compartment and Storage Box 1 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-11
Chapter 9
5
6
5 Close and lock the storage box lid. If a lock is not available, tie the lock rings with type III
nylon cord.
6 Safety tie the storage box with ½-inch tubular nylon webbing around each end.
Figure 9-10. Left Engine Compartment and Storage Box 1 Prepared (Continued)
9-12
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
1
2
4
3
1 Secure the toolbox in place with type III nylon cord wrapped around the toolbox and through
the hole in the bottom of the storage box.
2 Place the goggles and protective gear in the storage box compartment and pad with cellulose
wadding.
3 Safety tie the fire extinguisher in place with type III nylon cord.
4 Pad the goggles, protective gear, and miscellaneous parts with cellulose wadding.
Figure 9-11. Storage Box 2 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-13
Chapter 9
1
4
2
3
1 Close and lock the storage box lid. If a lock is not available, tie the lock rings with type III
nylon cord.
2 Safety tie the storage box with ½-inch tubular nylon webbing around each end Safety tie the
fire extinguisher in place with type III nylon cord.
3 Adjust the jack stand to the shortest position. Raise and tie it in place with ½-inch tubular
nylon webbing.
4 Close the left engine compartment cover and safety tie it with type III nylon cord.
Figure 9-12. Storage Box 2, Jack Stand, and Left Engine Compartment Secured
9-14
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
1
2
6
4
5
3
1 Tie the chain saw in place with type III nylon cord in storage box 3.
2 Tie the two jackhammers in place with type III nylon cord.
3 Tie the hammer-nailer in place with type III nylon cord.
4 Pad the chisels with cellulose wadding place them in the rack.
5 Place a layer of cellulose wadding over the chain saw, jackhammers, and hammer-nailer.
6 Place the miscellaneous hoses and cables on top of the cellulose wadding and tie with type
III nylon cord.
Figure 9-13. Storage Box 3 Prepared
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-15
Chapter 9
7
8
9
7 Place a 16- by 45-inch piece of honeycomb on top of the hoses and cables.
8 Close and lock the storage box lid. If a lock is not available, tie the lock rings with type III
nylon cord.
9 Safety tie the storage box with ½-inch tubular nylon webbing around each end Safety tie the
fire extinguisher in place with type III nylon cord.
Figure 9-13. Storage Box 3 Prepared and Secured (Continued)
9-16
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
6
5
2
1
6
3
4
1 Tie the two drill sinkers in place with type III nylon cord in storage box 4.
2 Tie the 2-foot drill rods in place with type III nylon cord.
3 Tie the wood borer in place with type III nylon cord.
4 Tie the accessories in place with type III nylon cord.
5 Fit a piece of honeycomb on top of the drill rods.
6 Fill the two accessory boxes with cellulose wadding.
7 Place a 16- by 45-inch piece of honeycomb on top of the items (not shown).
8 Close and lock the storage box lid. If a lock is not available, tie the lock rings with type III
nylon cord (not shown).
9 Safety tie the storage box with ½-inch tubular nylon webbing around each end Safety tie the
fire extinguisher in place with type III nylon cord (not shown).
10 Adjust the jack stand to the shortest position. Raise and tie it in place with ½-inch tubular
nylon webbing (not shown).
Figure 9-14. Storage Box 4 and Jack Stand Prepared and Secured
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-17
Chapter 9
1
3
2
5
4
1 Place the 4-foot, 6-foot, and 8-foot in the container located on the left rear of the trailer.
2 Close the lid of the container and secure the latch.
3 Tie the air hoses in place with type III nylon cord.
4 Tie the air hose adapters in place with type III nylon cord.
5 Tape the nozzle openings.
Figure 9-15. Rear of the Trailer Prepared
9-18
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
3
2
1
4
5
1 Roll the canvas water hose and tie it with type III nylon cord.
2 Roll the air hoses, tape the connector ends and tie the hoses with type III nylon cord.
3 Place the air hoses and the canvas water hose in the slots provided in the right engine
compartment.
4 Cover the batteries with plastic and tie them in place with type III nylon cord.
5 Place and 11- by 83-inch piece of honeycomb on top of the batteries and hoses. Tie the
honeycomb in place with type III nylon cord.
6 Close the right engine compartment cover and safety tie it with type III nylon cord (not shown).
Figure 9-16. Right Engine Compartment Prepared and Secured
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-19
Chapter 9
LIFTING AND POSITIONING THE TRAILER
9-5. Install the lifting slings as shown in Figure 9-17 and position the trailer as shown in Figure 9-18.
1
1
2
CAUTION
Ensure the rear lift slings clear the hose reels as any pressure on
these reels will result in damage.
1 Attach a 16-foot (4-loop), type XXVI nylon sling to the front outside tiedown provision on each
side of the trailer with a medium suspension clevis.
2 Attach a 16-foot (4-loop), type XXVI nylon sling on the rear inner frame section on each side
of the trailer with a medium suspension clevis.
Figure 9-17. Trailer Lift Slings Installed
9-20
FM 4-20.113/TO 13C7-3-51
27 March 2009
Rigging the Ingersol-Rand Model, 250-CFM, Trailer-Mounted Air Compressor on a 16-Foot, Type V
Platform for Low-Velocity Airdrop
1
4
2
3
CAUTION
Ensure the brake pressure relief valve does not touch the strongback
on honeycomb stack 4.
1 Raise the front jack stand and tie it in place with ½-inch tubular nylon webbing.
2 Place the trailer on the platform with the lunette overhanging the rear of the platform 10
inches.
3 Center the tires on stacks 2 and 3.
4 Center the rear edge of the trailer flush with the front edge of the platform.
Figure 9-18. Trailer Positioned on Platform
27 March 2009
FM 4-20.113/TO 13C7-3-51
9-21
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