FM 4-20.105-1 Airdrop of Supplies and Equipment: Dual Row Airdrop Systems (Volume, August 2006) - page 3

 

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FM 4-20.105-1 Airdrop of Supplies and Equipment: Dual Row Airdrop Systems (Volume, August 2006) - page 3

 

 

Chapter 3
Notes. 1. This drawing is not drawn to scale.
2. All dimensions are given in inches.
43
27
18
12
8
Stack
Pieces
Width
Length
Material
Instructions
Number
(inches)
(inches)
2
3
26
43
Honeycomb
Glue together to form base.
3
18
43
Honeycomb
Center and glue to top of base.
1
18
43
¾-inch
Use in next step.
Plywood
2
4
43
4x4 Lumber
Nail one piece to the 18-inch by 43
inch by ¾-inch plywood, at 1 ½
inches from the edge.
1
18
43
¾-inch
Nail on top of the 4X4 lumber and
Plywood
glue to the 18-inch by 43-inch
honeycomb.
1
18
43
Honeycomb
Cut out an 12-inch by 27-inch section
centered on the honeycomb and glue
to the 18-inch by 43-inch by ¾-inch
plywood (shown above).
Figure 3-3. Honeycomb Stacks Prepared (Continued)
3-4
FM 4-20.105-1/TO 13C7-1-51 VOL I
29 August 2006
Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
STACK
STACK
STACK
3
2
1
4
63
134
Stack Number
Position of Stack on Platform
Place stack:
1
4 inches from front edge of platform and centered.
2
63 inches from the front edge of the platform and centered.
3
134 inches from the front edge of the platform and centered.
Figure 3-4. Honeycomb Stacks Placed on Platform
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-5
Chapter 3
INSTALLING DRIVE-OFF AIDS ON PLATFORM
3-4. Install the drive-off aids on the platform as described in Paragraph 2-7.
Note. The use of the drive-off aids is optional.
PREPARING TRUCK
3-5. Prepare the truck as described below.
Make sure the fuel tank is no more than ¾ full. Prepare the fuel tank filler cap and fuel filler
opening as shown in Figure 3-5. Prepare the fuel tank drain plug as shown in Figure 3-6.
Note. Certain units may be authorized a waiver allowing 95% fuel. One way to verify the tank
is 95% full is to fill the tank and withdraw 1 ¼-gallons with a hand pump.
CAUTION
A full tank does not allow for expansion and is a danger to the aircraft
and air crew.
Make sure the batteries and battery compartment comply with AFMAN 24-204(I)/TM 38-250.
Prepare the cab of the truck as shown in Figure 3-7.
2
1
1 Tie the fuel filler cap to the body of the truck with type III nylon cord.
2 Tape the fuel filler opening.
Figure 3-5. Fuel Tank Filler Cap and Opening Prepared
3-6
FM 4-20.105-1/TO 13C7-1-51 VOL I
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
1
1 Place a 12-inch length of cloth-backed tape over the fuel tank drain plug.
Figure 3-6. Fuel Tank Drain Plug Prepared
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-7
Chapter 3
2
10
9
4
7
6
5
8
1
Remove all doors, covers, and supporting bows (not shown).
2
Tape the windshield glass on both sides in an X formation.
3
Remove and pad the mirrors. Secure them under the driver's seat with type III nylon cord
(not shown).
4
Tie the engine start switch in the engine stop position with type I, ¼-inch cotton webbing.
5
Tie the steering wheel to the seat frame in two places with type III nylon cord, or use the
retractable steering wheel locking cable. If the locking cable is used, secure it to the
steering wheel with type III nylon cord, not a padlock.
6
Tie the emergency brake handle in the off position with type III nylon cord.
7
Place the transmission and four-wheel drive levers in the neutral position.
8
Tie the seat cushions to the seat frames with type III nylon cord. Fold the passenger seats
in four-door trucks and secure them with the pins provided.
9
Tie the fire extinguisher in place in it’s designed rack with two lengths of type III nylon cord.
10
Tape all instrument panel gauges.
Figure 3-7. Cab Prepared
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
Secure and pad radio equipment in the cab section as shown in Figure 3-8.
2
1
3
1
Secure communications equipment in its mount with chains and padlocks.
2
Tie the equipment to its mount with 1-inch tubular nylon webbing.
3
Pad the front of the equipment generously with cellulose wadding taped in place. Pad the
radio handset with cellulose wadding and tie the handset to the mount with type III nylon
cord.
4 Remove antennas and stow with the doors. Pad the antenna mounts with cellulose
wadding taped in place (not shown).
Figure 3-8. Communications Secured and Padded
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-9
Chapter 3
Prepare the front of soft-top trucks with foldable windshields as shown in Figure 3-9.
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
1
2
10- by 80-inch Honeycomb
5
TAPE
10
DIAGRAM 1
1 Tape all lights and reflectors.
2 Cut a 10-inch by 80-inch piece of honeycomb. Taper crush 5 inches the length of the
honeycomb. Tape the 10-inch width of the honeycomb (See diagram 1). Place the
honeycomb flush on the front end of the hood with the taper up and to the rear of the
vehicle. Cut an 18-inch by 80-inch piece of honeycomb. Position on top of and flush with
the front of the 10-inch by 80-inch piece of honeycomb. Tie the two pieces of honeycomb
together with type III nylon cord around the 80 inch length. Tape top piece of honeycomb
where the type III nylon cord will come in contact.
Figure 3-9. Front of Truck Prepared
3-10
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
8
9
20
3
6
36 x 83
4
7
5
6
3 Place two 36-inch by 83-inch pieces of honeycomb, with cutouts as shown, on top of the
previously positioned honeycomb and flush with the front. Tape the 36 inch sides and front
edge on the top piece of honeycomb.
4 Secure the 36-inch by 83-inch honeycomb pieces with a length of type III nylon cord. Tie
the type III nylon cord to the left hood latch over the honeycomb, through the center of the
grill, over the right side of the honeycomb and tie to the right hood latch.
5 Run a length of type III nylon cord through the securing tie on the bottom two layers of
honeycomb and through the securing tie on the top two layers of honeycomb on each side
of the load.
6 Cut a 4-inch by 80-inch length of honeycomb. Position the honeycomb behind the installed
honeycomb. Mark and crush an area for the windshield wipers.
7 Cover the breather cap with one layer of felt and tape in place with cloth-backed tape.
Figure 3-9. Front of Truck Prepared (Continued)
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-11
Chapter 3
9
8
8 Cut four 4-inch by 4-inch by ½-inch pieces of felt. Position two pieces of felt under each
end of the 4-inch by 80-inch honeycomb. Pad and tape the hood latches and tape the 4
inch by 4-inch pieces of felt in position.
9 Fill the void between the 4-inch by 80-inch honeycomb and the windshield with cellulose
wadding. Ensure the entire void is filled to prevent the windshield from breaking.
Figure 3-9. Front of Truck Prepared (Continued)
3-12
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
¾-INCH PLYWOOD
DIAGRAM 2
1
6
1-INCH HOLES
10
11
12
10 Lay the windshield down. Cut a 19-inch by 78-inch piece of honeycomb to protect the
windshield. Cut out an opening for the windshield wiper motor. Position honeycomb on
top of the windshield.
11 Cut and position the 19-inch by 78-inch by ¾-inch piece of plywood, as shown in diagram
2, on top of the 19-inch by 78-inch honeycomb with the holes toward the rear of the
vehicle.
12 Secure a length of ½-inch tubular nylon through the ½-inch hole in the plywood and
through the top door hinge bracket on each side of the load.
Figure 3-9. Front of Truck Prepared (Continued)
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-13
Chapter 3
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
DIAGRAM 3
86
4 EACH 2 X 6 CUTOUTS THROUGH TOP AND
BOTTOM PIECES OF ¾ X 33 X 86 PYWOOD
6
2
4
6
31
TOP VIEW
2
2 X 4 X 31 LUMBER
2 X 4 X 33 LUMBER
5
2 X 4 X 37 LUMBER
8 ½-INCHES TYPICAL
BETWEEN LUMBER
4 X 4 X 94 LUMBER
REAR
FRONT
4 X 4 X 86 LUMBER
SIDE VIEW
2 X 4 X 86 LUMBER
Figure 3-9. Front of Truck Prepared (Continued)
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
14
13 Build the soft top HMMWV front attitude control system (ACS) as described below and as
shown in diagram 3 on previous page.
• Make four 2- by 6-inch cutouts through the top and bottom of the plywood sheets 21
¾-inches in from the edge of the plywood as shown in diagram 3.
• Nail two pieces of plywood with the 2- by 4-inch pieces of lumber between them as
shown in diagram 3 using 8d nails every 6 inches. Nail one 4- by 4- by 94-inch piece
of lumber on top of the plywood sandwich, centered and 6-inches from the front edge
using 40d nails every 10 inches.
• Nail one 4- by 4- by 86-inch piece of lumber on the bottom front edge of the plywood
sandwich using 40d nails every 10 inches.
• Nail one 2- by 4- by 86-inch piece of lumber to the bottom of the 4- by 4- by 86-inch
piece of lumber previously installed using 10d nails every 10 inches.
14 Build two honeycomb stacks using nine 14- by 20-inch sheets of honeycomb glued
together with a ¾- by 14- by 20-inch piece of plywood glued to the bottom. Place one on
each seat with the plywood to the bottom.
Figure 3-9. Front of Truck Prepared (Continued)
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-15
Chapter 3
17
16
15
18
19
15 Position front ACS on the honeycomb stacks with the 2-inch by 4-inch piece of lumber
resting on the dash and flush against the windshield.
16 Pad sharp edges around the 4-inch by 4-inch piece of lumber at the cutouts and the front
edges of the cutouts, where the slings will come in contact, with felt and tape to secure.
17 Route a lashing from the front left lifting shackle down through the front left cutout and up
through the rear left cutout over the 4-inch by 4-inch piece of lumber and load bind in front
of the 4-inch by 4-inch piece of lumber. Pad and tape load binder with felt. Repeat for right
side.
18 Route a 30-foot lashing over the ACS board 6 inches forward of the rear of the plywood
edge, down and around frame of vehicle and up to top of ACS board. Position the load
binder on top right side of ACS board.
19 Route a second 30-foot lashing over the front ACS board in front of the 4-inch by 4-inch
piece of lumber down and around the frame of vehicle and up to top of ACS board.
Position the load binder on top left side of ACS board.
Figure 3-9. Front of Truck Prepared (Continued)
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Prepare and secure the pioneer tool kit according to TM 9-2320-280-10/TO 36A12-1A-2091
1/TM 2320-10/6B, and as shown in Figure 3-10.
1
2
3
1
Tape all sharp edges of the pioneer tools. Pad the ax head with cellulose wadding.
2
Place the tools in the rack, and secure them with the straps provided, and with type III
nylon cord.
3 Close and latch the tool rack. Tie the rack in place with type III nylon cord.
Figure 3-10. Pioneer Tool Kit Secured
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-17
Chapter 3
Prepare the underside of the truck as shown in Figure 3-11.
1
2
3
1
Pad the lower control arms on the front and rear of the truck with cellulose wadding taped
in place.
2
Pass a 15-foot lashing over the right frame rail, under the oil pan, and over the left frame
rail. Make sure the lashing goes over the exhaust pipe and then under it. Make sure the
wires running along the frame rail are to the outside of the lashing. Place a 12- by 12-inch
piece of honeycomb and a 2- by 6- by 16-inch piece of lumber between the lashing and the
oil pan. Fasten the lashing with a D-ring and a load binder.
3 Install another lashing just to the rear of the lashing installed in step 2. Route the lashing
in the same way.
Figure 3-11. Underside of Truck Prepared
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STOWING ACCOMPANYING LOAD
3-6. Use the procedures shown in Figure 3-12 to stow 16 boxes of 105-mm ammunition and truck
equipment.
Note. The accompanying load may vary from the one shown. Ensure the load is properly
secured and weighs between 800 and 2,000 pounds.
2
1
4
3
1
Lay two 30-foot lashings lengthwise across the cargo bed, passing them through the left
and right tie-down rings in the cargo floor.
2
Lay two 15-foot lashings widthwise across the cargo bed passing through the center and
rear tie-down rings in the cargo floor.
3
Cover the cargo floor using two pieces of honeycomb to make a 52-inch by 80-inch layer.
Position the rear of the layer 1 ½ inches from the rear of the cargo bed.
4 Space four 15-foot lashings evenly across the width of the cargo bed.
Figure 3-12. Ammunition and Truck Equipment Stowed
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-19
Chapter 3
7
6
8
9
5
5
Position 16 boxes of 105-mm ammunition on the honeycomb in two layers of eight boxes.
6
Bind the boxes together with the four side-to-side lashings placed in step 4.
7
Secure the lashings placed in step 2.
8
Join the left front and right rear 30-foot lashings placed in step 1 with two D-rings and load
binder.
9 Join the left rear and right front 30-foot lashings placed in step 1 in the same way as in
step 8.
Figure 3-12. Ammunition and Truck Equipment Stowed (Continued)
3-20
FM 4-20.105-1/TO 13C7-1-51 VOL I
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
10
11
10 Close the tailgate. Secure it to the chain hook brackets with a double length of ½-inch
tubular nylon.
11 Wrap the truck tarpaulin bows in cellulose wadding and tape the wadding in place. Position
the bows with the legs on the outside of the sideboards on the front of the cargo bed.
Secure the bows to the top crew compartment cross-member with type III nylon cord.
Figure 3-12. Ammunition and Truck Equipment Stowed (Continued)
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-21
Chapter 3
Notes. 1. All measurements are given in inches.
2. This drawing is not drawn to scale.
PLYWOOD
¾ X 12 X 24
12
HONEYCOMB
(12 X 24)
13
14
12 Cut twelve 12-inch by 24-inch pieces of honeycomb. Form two rear ACS support stacks by
gluing six layers of 12-inch by 24-inch honeycomb. Cut two 12-inch by 24-inch by ¾-inch
pieces of plywood and glue one piece on top of each stack as shown in diagram above.
13 Position the rear ACS support stacks on the front edge of the rear wheel wells. Secure the
support stacks with two lengths of type III nylon cord to a convenient point on the load.
14 Wrap the cross pieces of the center beam support with cellulose wadding and tape
padding in place. Place the center support beam, doors, and cargo covers in the cargo bed
and secure with type III nylon cord to convenient points on the load.
Figure 3-12. Ammunition and Truck Equipment Stowed (Continued)
3-22
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
LIFTING AND POSITIONING TRUCK AND INSTALLING OPTIONAL
DRIVE-OFF AIDS
3-7. Install the lift slings and position the truck on the honeycomb stacks as shown in Figure 3-13. Attach
the optional drive-off aids to the wheels of the truck as shown in Chapter 2.
3
4
1
Attach a 9-foot (2-loop) type XXVI nylon sling to each airlift bracket on the hood of the truck
with a medium clevis (not shown).
2
Attach a 12-foot (2-loop) type XXVI nylon sling to each rear lifting shackle with a medium
clevis. Route the slings through the sling guides on each side of the tailgate (not shown).
3
Position the truck with the front cross member on the front edge of stack 1. Ensure the
center frame cross member rests squarely on the 6 inch part of honeycomb on stack 2.
4
Install the drive-off aids on the rear wheels before completely lowering the rear of the truck.
5 Remove the lift kit (not shown).
Figure 3-13. Truck Positioned
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-23
Chapter 3
LASHING TRUCK
3-8. Lash the truck to the platform according to Chapter 2 and as shown in Figures 3-14 through 3-17.
4
3
1
2
2A
2
1
1A
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
1
1
Through left front tie-down provision.
2
1A
Through right front tie-down provision.
3
2
Through right front tie-down provision.
4
2A
Through left front tie-down provision.
Figure 3-14. Lashings 1 through 4 Installed
3-24
FM 4-20.105-1/TO 13C7-1-51 VOL I
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
7
5
6
7
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
5
6
Around right front lower control arm.
6
6A
Around left front lower control arm.
7
7
Through tiedown bracket behind right front coil spring.
8
7A
Through tiedown bracket behind left front coil spring.
Figure 3-15. Lashings 5 through 8 Installed
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-25
Chapter 3
10
12
9
12
11
8
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
9
8A and 8
Through clevis 8A and back through its own D-ring through stack 2.
Load bind to clevis 8.
10
11
Through tiedown bracket in front of right rear coil spring.
11
11A
Through tiedown bracket in front of left rear coil spring.
12
12
Around right rear lower control arm.
13
12A
Around left rear lower control arm.
Figure 3-16. Lashings 9 through 13 Installed
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16
17
15
14
15A
16A
15
16
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
14
15
Through left rear tiedown point.
15
15A
Through right rear tiedown point.
16
16
Through right rear tiedown point behind the coil spring.
17
16A
Through left rear tiedown point behind the coil spring.
Figure 3-17. Lashings 14 through 17 Installed
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-27
Chapter 3
INSTALLING SUSPENSION SLINGS AND REAR ATTITUDE
CONTROL SYSTEM
3-9. Construct, inspect, and position the rear Attitude Control System (ACS) according to Chapter 2 and
as shown in Figure 3-18. Install the suspension slings and secure ACS according to Chapter 2 and as
shown in Figure 3-19.
1
1 Position the rear ACS on the rear ACS support stacks 12 inches from the rear of the
stacks with the 4-inch by 4-inch piece of lumber facing the front of the truck.
CAUTION
Insure the ACS is centered on the load.
Figure 3-18. Rear Attitude Control System Positioned
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2
3
1
5
4
1 Install a 3-foot (4-loop), type XXVI nylon sling to clevises 4 and 5. Connect an 11-foot (4
loop), type XXVI nylon sling to the center of the 3-foot sling with a 3 ¾-inch two-point link.
2 Route the sling over ACS 4-inch by 4-inch piece of lumber from front to rear. Pad and tape
the 11-foot sling with felt from a point 6 inches below the 4-inch by 4-inch piece of lumber
to a point 6-inches above the top of the ACS.
3 Safety tie the 3 ¾-inch two-point link to the ACS 4x4 with a loop of type III nylon cord.
Ensure the tie is tight.
4 Install a 3-foot (4-loop), type XXVI nylon sling to the other end of the 11-foot sling with a 3
¾-inch two-point link. Pad and tape the link with felt (not shown). See Chapter 2.
5 Repeat steps 1 through 4 on the left side of load using clevises 4A and 5A.
Figure 3-19. Slings Installed and ACS Secured
29 August 2006
FM 4-20.105-1/TO 13C7-1-51 VOL I
3-29
Chapter 3
7
6
10
3
6 Route a lashing from clevis 3 under right ACS 4-inch by 4-inch piece of lumber from rear to
front, around the ACS 4-inch by 4-inch lumber and back to clevis 3.
7 Route a lashing from clevis 10 under right ACS 4-inch by 4-inch piece of lumber from front
to rear, up and around the ACS 4- by 4-inch piece of lumber and back to clevis 10.
8 Repeat steps 7 through 9 on the left side of load using clevises 3A and 10A (not shown).
9 Ensure the ACS is straight and centered on load. Load binders on both sides of the load
must be closed at the same time in the following sequence: 3 and 3A, 10 and 10A.
Figure 3-19. Slings Installed and ACS Secured (Continued)
3-30
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11
12
16
15
10
17
14
13
9
10
Install a 3-foot (4-loop), type XXVI nylon sling to clevises 13 and 14. Connect an 11-foot
(4-loop), type XXVI nylon sling to the center of the 3-foot sling with a 3 ¾-inch two-point
link.
11
Route the sling through the clevis on the ACS from rear to front. Pad and tape the 11-foot
sling with felt from a point 6 inches below the clevis to a point 6 inches above the top of the
ACS.
12
Safety tie the 3 ¾-inch two-point link to the ACS clevis with a loop of type III nylon cord.
Ensure the tie is tight.
13
Install a 3-foot (4-loop), type XXVI nylon sling to the other end of the 11-foot sling with a 3
¾-inch two-point link. Pad and tape the link (not shown). See Chapter 2.
14
Repeat steps 10 through 13 on the left side using clevises 13A and 14A (not shown).
15
Route a 30-foot lashing from clevis 9, through the right rear ACS clevis from outside to
inside, rear to front, around the ACS 4-inch by 4-inch piece of lumber and back to clevis 9.
16
Route a lashing from clevis 17 through right rear ACS clevis from outside to inside, front to
rear, around ACS 4-inch by 4-inch piece of lumber and back to clevis 17.
17
Repeat steps 15 and 16 on left side of load using clevises 9A and 17A (not shown).
Figure 3-19. Slings Installed and ACS Secured (Continued)
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3-31
Chapter 3
21
18
20
18
Remove all slack from the right front sling and lay sling across the top of the ACS 4-inch by
4-inch piece of lumber from front to rear. Tie two lengths of type III nylon cord over the
sling, behind all lashings, and around ACS 4-inch by 4-inch piece of lumber forming a
crisscross pattern.
19
Repeat step 18 for left front sling (not shown).
20
Remove all slack from the right rear sling. Tie a length of type III nylon cord around the 11
foot sling and the ACS sling.
21
Tie a length of type III nylon cord around the 11-foot nylon sling, behind all lashings, and
the ACS 4-inch by 4-inch piece of lumber, tie the ends together.
22 Repeat steps 20 and 21 for left rear sling (not shown).
Figure 3-19. Slings Installed and ACS Secured (Continued)
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INSTALLING OUTRIGGER ASSEMBLIES
3-10. Assemble, install, and safety the mast and foot assemblies on the DRAS platform according to TM
10-1670-268-20&P/TO 13C7-52-22 and as shown in Chapter 2, Figures 2-42 through 2-44 and Figure 2
45 steps 1, 2, and 3.
STOWING CARGO PARACHUTES
3-11. Prepare, stow, and restrain three G-11D cargo parachutes on top of the hood of the truck as shown in
Chapter 2 and as shown in Figure 2-27.
1
11
6
1 Restrain the parachutes using type VIII nylon webbing tied to bushings 6, 6A, 11, and 11A.
Figure 3-20. Cargo Parachutes Installed
29 August 2006
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3-33
Chapter 3
STOWING DEPLOYMENT PARACHUTE
3-12. Prepare, stow, and install the deployment parachute according to Chapter 2, Section V and as shown
in Figure 3-21.
Figure 3-21. Deployment Parachute Installed
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FM 4-20.105-1/TO 13C7-1-51 VOL I
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
INSTALLING PARACHUTE RELEASE SYSTEM
3-13. Build an M-1 release stack as shown in Figure 3-22. Prepare and install an M-1 release system
according to Chapter 2, Section VI and as shown in Figure 3-23.
2
1
1 Cut eight 24-by 24-inch pieces of honeycomb and glue together to form the M-1 release
parachute stack. Ensure the support stack is higher than the highest point in the cargo
bed. Tape the top edges of the honeycomb.
2 Center the M-1 release support stack in front of the rear ACS. Secure the support stack to
convenient points in the cargo bed with two lengths of ½-inch tubular nylon webbing.
Figure 3-22. Parachute Release Stack Positioned
29 August 2006
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3-35
Chapter 3
1
2
4
6
7
5
1 Center the M-1 release on the support stack.
2 Attach riser extensions and suspension slings to the M-1 release.
Note. Remove the buffers from the ends of the suspension slings that attach to the M-1 release.
3 Group the riser extensions together and tie with type I, ¼-inch cotton webbing, making
three ties (not shown).
4 S-fold the slack in the rear suspension slings on top of the rear ACS. Make two ties with
type I, ¼-inch cotton webbing around each sling and the rear ACS.
5 S-fold the slack in the front suspension slings on top of the crew compartment cross
member. Make two ties with type I, ¼-inch cotton webbing around each sling and the cross
member.
6 Safety tie to a convenient place on the load with type III nylon cord.
7 Secure arming wire and lanyard to a carrying handle of a parachute with three alternating
half hitches and an overhand knot in the running end.
Figure 3-23. M-1 Parachute Release Installed
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
INSTALLING MAST RELEASE KNIVES
3-14. Install the mast release knives according to Chapter 2, Figure 2-45, steps 4 through 10 and as shown
in Figure 3-24.
1
2
2
1
1 The length of the left and right ½-inch tubular nylon webbing from the base of the guillotine
knives to the lower suspension links of the M-1 release is 67 inches (shown in steps 5
through 7 of Figure 2-45).
2 Tie a length of type III nylon cord through the left tailgate sling guide and to the body of the
right top guillotine knife that measures 86-inches from the tailgate sling guide to the base
of the guillotine knife. Repeat for right tailgate sling guide and left lower guillotine knife
(shown in steps 9 and 10 of Figure 2-45).
Note. All measurements are from knot to knot.
Figure 3-24. Mast Release Knives Installed
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3-37
Chapter 3
MARKING RIGGED LOAD
3-15. Mark the rigged load according to Chapter 2, Section IX and as shown in Figure 3-25. A Shipper’s
Declaration for Dangerous Goods is required. If the load varies from the one shown, the weight, height,
CB, and parachute requirements must be recomputed.
EQUIPMENT REQUIRED
3-16. The equipment required to rig these loads is listed in Table 3-1.
CAUTION
Make the final rigger inspection required by Chapter 2, Section IX
before the load leaves the rigging site.
RIGGED LOAD DATA
Weight: M998
10,912 pounds
M1038
11,165 pounds
M1097
10,097 pounds
Maximum load allowed
12,750 pounds
Height
98 inches
Width
94 inches
Overall Length
228 inches
Overhang: Front
12 inches
Rear
0 inches
Center of Balance (from front edge of platform):
M998
89 inches
M1038
91 inches
M1097
90 inches
Figure 3-25. M998/M1038/M1097 Cargo/Troop Carriers Rigged on DRAS Platform
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
Table 3-1. Equipment Required for Rigging M998/M1038/M1097 Cargo/Troop Carrier on
DRAS Platform
National Stock Number
Item
Quantity
8040-00-273-8713
Adhesive paste, 1-gallon
As required
4020-00-240-2146
Cord, nylon, type III, 550-pound
As required
Clevis,
4030-00-090-5354
Large
3
4030-00-678-8562
Medium
6
1670-00-360-0328
Cover, clevis, large
3
8135-00-664-6958
Cushioning material, packaging, cellulose wadding
As required
8305-00-191-1101
Felt, ½-inch
As required
1670-01-493-6418
Link assembly, two-point, 3 ¾-inch
9
Lumber:
5510-00-220-6146
2- by 4-inch
As required
5510-00-220-6148
2- by 6-inch
As required
5510-00-220-6274
4- by 4-inch
As required
5530-00-618-8073
Plywood, ¾-inch
5 sheets
Nail, steel wire, common,
5315-00-010-4659
8d
As required
5315-00-753-3883
10d
As required
5315-00-010-4666
40d
1670-00-753-3928
Pad, energy dissipating, honeycomb
18 sheets
1670-01-487-5461
Static line assembly release away
1
Parachute:
Cargo:
1670-01-016-7841
G-11D
3
1670-00-040-8135
Cargo extraction: 28-foot (deployment parachute)
1
Platform, dual row, 18-foot
1670-01-485-1654
Rail, DRAS
2
1670-01-486-1342
Roller Pad, DRAS
4
1670-01-486-1656
Panel Assembly, Main
9
1670-01-162-2372
Clevis assembly
36
1670-01-097-8816
Release, cargo parachute, M-1
1
Sling, cargo airdrop
For suspension:
1670-01-062-6310
11-ft (4-loop), type XXVI nylon webbing
4
1670-01-062-6306
3-ft (4-loop), type XXVI nylon webbing
8
For deployment:
1670-01-062-6306
3-ft (4-loop), type XXVI nylon webbing
1
For riser extension:
1670-01-062-6313
60-ft (3-loop), type XXVI nylon webbing
3
29 August 2006
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3-39
Chapter 3
Table 3-1. Equipment Required for Rigging M998/M1038/M1097 Cargo/Troop Carrier on
DRAS Platform (Continued)
National Stock Number
Item
Quantity
For ACS:
1670-01-063-7761
16-ft (2-loop), type XXVI nylon webbing
1
For lifting:
1670-01-062-6304
9-ft (2-loop), type XXVI nylon webbing
2
1670-01-062-6303
12-ft (2-loop), type XXVI nylon webbing
2
1670-00-040-8219
Strap, parachute release, multicut
2
1670-00-937-0271
Knife release, cargo (guillotine)
6
1670-01-487-5464
Outrigger assembly
1
7510-00-266-5016
Tape, adhesive, 2-in
As required
1670-00-937-0271
Tie-down assembly, 15-ft
45
1670-00-725-1437
Tie-down, cargo, aircraft, (CGU-1B)
3
Webbing:
8305-00-268-2411
Cotton, ¼-in, type I
As required
Nylon:
8305-00-082-5752
Tubular, ½-in
As required
8305-00-263-3591
Type VIII
As required
SECTION II - RIGGING THE M1097 VARIANT CARGO/TROOP CARRIER
DESCRIPTION OF LOAD
3-17. The M1097 variant cargo/troop carrier (Figure 3-26) is rigged on a DRAS platform with an
accompanying load weighing a minimum of 800 pounds and a maximum of 2,000 pounds. It is 202 inches
long, 85 inches wide and its height is 102 inches.
Figure 3-26. M1097 Variant Cargo/Troop Carrier
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
PREPARING PLATFORM
3-18. Inspect, or assemble and inspect, a DRAS platform with outrigger assemblies and outrigger platform
support weldments and link assemblies according to TM 10-1670-268-20&P/TO 13C7-52-22 and as
shown in Figure 3-27.
CLEVISES
18A THROUGH 1 A
LEFT
REAR
FRONT
RIGHT
CLEVISES
18 THROUGH 1
Step:
1. Starting at the front of each platform side rail, install clevises on the bushings bolted on
holes 1 (triple), 2, 3, 5, 7, 9, 10, 13 (double), 15, 16, 18, 25, 27, 28, 29, and 30.
2. Starting at the front of the platform, number the clevises 1 through 18 on the right side and
1A through 18A on the left side.
3. Label the tie-down rings according to Chapter 2, Figure 2-2.
Note. The clevis attached to bushing 13 is clevis number 9 and the doubled clevis is number 10.
Figure 3-27. Platform Prepared
BUILDING AND PLACING HONEYCOMB STACKS
3-19. Prepare the honeycomb stacks for the M1097 as shown in Figure 3-3. Position the honeycomb
stacks as shown in Figure 3-4.
INSTALLING OPTIONAL DRIVE-OFF AID ON PLATFORM
3-20. Install the drive-off aid as shown in Chapter 2, Figure 2-5.
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3-41
Chapter 3
PREPARING TRUCK
3-21. Prepare the truck as described below.
Make sure the fuel tank is no more than ¾ full. Prepare the fuel tank filler cap and fuel filler
opening as shown in Figure 3-5. Prepare the fuel tank drain plug as shown in Figure 3-6.
Note. Certain units may be authorized a waiver allowing 95% fuel. One way to verify the tank
is 95% full is to fill the tank and withdraw 1 ¼-gallons with a hand pump.
CAUTION
A full tank does not allow for expansion and is a danger to the aircraft
and air crew.
Make sure the batteries and battery compartment comply with AFMAN 24-204(I)/TM 38-250.
Prepare the cab of the truck as shown in Figure 3-7.
Secure and pad radio equipment in the cab section as shown in Figure 3-8.
Remove the bar in the top of the cab and pad with cellulose wadding and tape as shown in Figure
3-28.
Prepare front of vehicle as shown in Figure 3-28.
Prepare and secure the pioneer tool kit according to TM 9-2320-280-10/TO 36A12-1A-2091
1/TM 2320-10/6B and as shown in Figure 3-10.
Prepare the underside of the truck as shown in Figure 3-11.
1
2
1 Remove bar in the top of the cab and pad with cellulose wadding and tape.
2 Tape all lights and reflectors.
Figure 3-28. Front of Truck Prepared
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Rigging M998/M1038/M1097 Cargo/Troop Carrier HMMWV on Dual Row Airdrop System Platform
8
9
20
6
4
36 x 83
5
3
10- by 80-inch Honeycomb
5
3
TAPE
10
DIAGRAM 1
3 Cut a 10- by 80-inch piece of honeycomb. Taper crush the length of the honeycomb
5 inches. Tape the 10-inch wide side of honeycomb. Place the honeycomb flush on the
front end of the hood with the taper up and to the rear of the vehicle. Cut an 18- by 80-inch
piece of honeycomb. Position on top and flush with the front of the 10- by 80-inch piece of
honeycomb. Tie the two pieces together with type III nylon cord around the 80-inch length.
Tape the top piece of honeycomb where the type III nylon cord makes contact.
4 Place two 36- by 83-inch pieces of honeycomb with the cutout on top of the previously
positioned honeycomb flush with the front. Tape on top of the 36-inch sides and front edge
of the top piece of honeycomb.
5 Secure the 36- by 83-inch pieces of honeycomb with type III nylon cord. Tie the type III
nylon cord to the left hood latch and route it over the honeycomb, through the grill, over the
honeycomb, and secure it to the right hood latch.
Figure 3-28. Front of Truck Prepared (Continued)
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3-43
Chapter 3
9
10
6
8
11
6 Run a length of type III nylon cord through the securing ties on the bottom two layers of
honeycomb and through the securing ties on the top two layers of honeycomb on each
side of load.
7 Remove the breather cap. Place a layer of felt over the intake hole, and tape the felt in
place (not shown).
8 Cut and position two 12- by 83-inch pieces of honeycomb behind the 36- by 83-inch pieces
of honeycomb. Tape along the top 12-inch sides and secure the honeycomb with a length
of type III nylon cord to the hood latch and door hinge.
9 Cut a 21- by 83-inch piece of honeycomb and place it in front of the windshield. Make
cutouts where the honeycomb makes contact with the ammunition rack braces.
10 Tape along the 21-inch edges on each side and secure it in place with a length of type III
nylon cord.
11 Tape the hood latch with 2-inch cloth-backed tape.
Figure 3-28. Front of Truck Prepared (Continued)
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