FM 4-20.112 AIRDROP OF SUPPLIES AND EQUIPMENT: RIGGING TYPICAL SUPPLY LOADS (February 2009) - page 9

 

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FM 4-20.112 AIRDROP OF SUPPLIES AND EQUIPMENT: RIGGING TYPICAL SUPPLY LOADS (February 2009) - page 9

 

 

Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
39
38
37
36
35
34
34 Position four (M231) powder canisters on top of the two pre-positioned lashings on top of
the base stack with the canister openings facing toward the rear edge of the platform and
flush against the previously positioned plywood.
35 Place a 30- by 24-inch piece of honeycomb over the four canisters.
36 Place a second layer of four (M231) powder canisters on top of the 30- by 24-inch piece of
honeycomb.
37 Place a second layer of 30- by 24-inch piece of honeycomb over the second layer of
canisters.
38 Place a third layer of four (M231) powder canisters on top of the 30- by 24-inch piece of
honeycomb.
39 Secure the pre-positioned lashings over the canisters. Pad between the canisters and load
binders with a piece of felt.
Figure 8-19. Ammunition Positioned and Secured (Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-49
Chapter 8
41
40
42
43
40 Cut a 24- by 30- by ½-inch piece of plywood. Position the piece in a vertical position and
flush against the previously positioned (M231) powder canisters. Ensure the 30-inch edge
is flush against the honeycomb base stack.
41 Secure the two pre-positioned lashings on top of the powder canisters using two D-rings
and two load binders. Pad under the load binders using a piece of felt.
42 Place a 15-foot lashing, 5-inches from the previously positioned plywood in a left to right
direction according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO
13C7-1-5. Ensure the D-ring is positioned on top of the right stacks of projectiles.
43 Place a 15-foot lashing, 26-inches from the previously positioned plywood in a left to right
direction according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO
13C7-1-5. Ensure the D-ring is positioned on top of the right stacks of projectiles.
Figure 8-19. Ammunition Positioned and Secured (Continued)
8-50
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
49
48
47
46
45
44
44 Position four (M231) powder canisters on top of the two pre-positioned lashings on top of
the base stack with the canister openings facing toward the rear edge of the platform and
flush against the previously positioned plywood.
45 Place a 30- by 24-inch piece of honeycomb over the four canisters.
46 Place a second layer of four (M231) powder canisters on top of the 30- by 24-inch piece of
honeycomb.
47 Place a second layer of 30- by 24-inch piece of honeycomb over the second layer of
canisters.
48 Place a third layer of four (M231) powder canisters on top of the 30- by 24-inch piece of
honeycomb.
49 Secure the pre-positioned lashings over the canisters. Pad between the canisters and load
binders with a piece of felt.
Figure 8-19. Ammunition Positioned and Secured (Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-51
Chapter 8
51
50
50 Cut, position, and center two 21- by 31-inch pieces of honeycomb over the canisters and
fuse boxes flush with the rear stack of projectiles. Tape the edges of the honeycomb and
secure to a convenient point on the load using type III, nylon cord.
51 Cut, position, and center a 31- by 96-inch piece of honeycomb over the canisters and fuse
boxes flush with the previously positioned honeycomb piece. Tape the edges of the
honeycomb and secure to a convenient point on the load using type III, nylon cord.
Figure 8-19. Ammunition Positioned and Secured (Continued)
8-52
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
CONSTRUCTING THE FRONT ENDBOARD
8-24. Construct the front endboard as shown in Figure 8-20.
Notes.
1. This drawing is not to scale.
2. All dimensions are in inches.
3. Make cutouts 2- by 2 inches.
TOP
6
6
8
6
38
2 each, ¾-inch plywood
6
12
60
BOTTOM
Step:
1. Cut two 3/4- by 60- by 38-inch pieces of plywood.
2. Make 2- by 2-inch cutouts as shown.
3. Nail two pieces of plywood flush together with 6d nails to make the front endboards.
4. Pad the cutouts with cellulose wadding and secure using 2-inch masking tape.
Figure 8-20. Front Endboard Constructed
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-53
Chapter 8
CONSTRUCTING THE REAR ENDBOARD
8-25. Construct the rear endboard as shown in Figure 8-21.
Notes.
1. This drawing is not to scale.
2. All dimensions are in inches.
3. Make cutouts 2- by 2 inches.
6
6
TOP
8
6
38
2 each, ¾-inch plywood
6
12
10
25
25
4
60
BOTTOM
Step:
1. Cut two 3/4- by 60- by 38-inch pieces of plywood.
2. Make 2- by 2-inch cutouts as shown.
3. Nail two pieces of plywood flush together with 6d nails to make the rear endboards.
4. Pad the cutouts with cellulose wadding and secure using 2-inch masking tape.
Figure 8-21. Rear Endboard Constructed
8-54
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
LASHING THE AMMUNITION STACK AND THE ENDBOARDS
8-26. Lash the ammunition stack and the endboards 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.
Notes.
1. Place an endboard centered at the front and rear of the ammunition stack.
2. When positioning the rear endboards ensure that the 4- by- 10-inch cutout is centered over the
platform extraction bracket and that the nuts and bolts are not covered.
3. Prior to routing the lashings, pad with cellulose and tape all cutouts.
3
4
2
1
A1
B1
C6
B6
Lashing Number
Tiedown Ring
Instructions
Number
1 and 2
A1 to B6
Route the pre-positioned lashing from tie-down ring A1
through the top right edge cutout of the front endboard.
Route the pre-positioned lashing from tie-down ring B6
through the top right edge cutout of the rear endboard.
Secure the lashings on top using two D-rings and a load
binder.
3 and 4
B1 to C6
Route the pre-positioned lashing from tie-down ring B1
through the top left edge cutout of the front endboard.
Route the pre-positioned lashing from tie-down ring C6
through the top left edge cutout of the rear endboard.
Secure the lashings on top using two D-rings and a load
binder.
Figure 8-22. Ammunition Stack and Endboards Lashed
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-55
Chapter 8
6
8
6
5
15
2A
14
1A
7
8
2
5
7
1
Lashing Number
Clevis Number
Instructions
5
1 and 15
Route a 15-foot lashing through clevis 1 and through its
own D-ring. Route the lashing through the top left cutout of
the front endboard. Route a 15-foot lashing through clevis
15 and through its own D-ring. Route the lashing through
the top left cutout of the rear endboard. Secure with a load
binder and D-rings on the left side.
6
1A and 15A
Route a 15-foot lashing through clevis 1A and through its
own D-ring. Route the lashing through the top right cutout of
the front endboard. Route a 15-foot lashing through clevis
15A and through its own D-ring. Route the lashing through
the top right cutout of the rear endboard. Secure with a load
binder and D-rings on the right side.
7
2 and 14
Route a 15-foot lashing through clevis 2 and through its
own D-ring. Route the lashing through the second left
cutout from the top of the front endboard. Route a 15-foot
lashing through clevis 14 and through its own D-ring. Route
the lashing through the second cutout from the top of the
rear endboard. Secure with a load binder and D-rings on
the left side.
8
2A and 14A
Route a 15-foot lashing through clevis 2A and through its
own D-ring. Route the lashing through the second right
cutout from the top of the front endboard. Route a 15-foot
lashing through clevis 14A and through its own D-ring.
Route the lashing through the second right cutout from the
top of the rear endboard. Secure with a load binder and D-
rings on the right side.
Figure 8-22. Ammunition Stack and Endboards Lashed (Continued)
8-56
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
11
6
10
5
4
9
Lashing Number
Clevis Number
Instructions
9
4 and 4A
Pass a 30-foot lashing through both clevises and through
the third cutouts from the top in the front endboard. Secure
the lashing to the front right side.
10
5 and 5A
Pass a 30-foot lashing through both clevises and through
the second cutouts from the top in the front endboard.
Secure the lashing to the front right side.
11
6 and 6A
Pass a 30-foot lashing through both clevises and through
the top cutouts in the front endboard. Secure the lashing to
the front right side.
Figure 8-22. Ammunition Stack and Endboards Lashed (Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-57
Chapter 8
12
9
10
12
13
14
Lashing Number
Clevis Number
Instructions
12
9 and 9A
Pass a 30-foot lashing through both clevises and through
the top cutouts in the rear endboard. Secure the lashing to
the rear right side.
13
10 and 10A
Pass a 30-foot lashing through both clevises and through
the second cutouts from the top in the rear endboard.
Secure the lashing to the rear right side.
14
12 and 12A
Pass a 30-foot lashing through both clevises and through
the third cutouts from the top in the rear endboard. Secure
the lashing to the rear right side.
Figure 8-22. Ammunition Stack and Endboards Lashed (Continued)
8-58
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
18
16
15
19
17
13
11
8
7
3
Lashing Number
Clevis Number
Instructions
15
3 and 3A
Pass a 30-foot lashing through both clevises and over the
top of the front stacks of the 155-mm projectiles. Secure the
lashing on the right side using a D-ring and load binder.
16
7 and 7A
Pass a 30-foot lashing through both clevises and over the
top of the second stacks of the 155-mm projectiles. Secure
the lashing on the right side using a D-ring and load binder.
17
8 and 8A
Pass a 30-foot lashing through both clevises and over the
top of the third stacks of the 155-mm projectiles. Secure the
lashing on the right side using a D-ring and load binder.
18
11 and 11A
Pass a 30-foot lashing through both clevises and over the
top of the fourth stacks of the 155-mm projectiles. Secure
the lashing on the right side using a D-ring and load binder.
19
13 and 13A
Pass a 30-foot lashing through both clevises and over the
top of the rear stacks of the 155-mm projectiles. Secure the
lashing on the right side using a D-ring and load binder.
Figure 8-22. Ammunition Stack and Endboards Lashed (Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-59
Chapter 8
INSTALLING SUSPENSION SLINGS AND DEADMAN’S TIE
8-27. Install the suspensions slings and deadman’s tie according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 8-23.
2
1
3
1 Pass one end of a 12-foot (2-loop), type XXVI nylon suspension sling through the bell portion
of a large suspension clevis. Bolt the clevis to the suspension hole of the right front tandem
link.
2 Install on the left front tandem link and the right rear and left rear tandem links a 12-foot (2-
loop), type XXVI nylon suspension sling as in step 1.
3 Raise the slings and install the deadman's tie according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
Figure 8-23. Suspension Slings and Deadman’s Tie Installed
8-60
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
BUILDING AND POSITIONING PARACHUTE STOWAGE
PLATFORM
8-28. Build and position the parachute stowage platform as shown in Figure 8-24.
1
2
3
Notes.
1. Ensure the suspension sling safety tie and the suspension slings are positioned on top of the
honeycomb pieces placed in steps 1 through 3.
2. Prior to lowering the suspension slings, position and secure the parachute platform and release
platform.
1 Cut and position one 36- by 60-inch piece of honeycomb with the 60-inch edge flush with
the rear edge of the ammunition stack. Tape the edges of the honeycomb with 2-inch
adhesive tape and secure the honeycomb to a convenient point on the load with type III
nylon cord.
2 Cut and position a second 36- by 60-inch piece of honeycomb against the front edge of the
first piece of honeycomb. Tape the edges and secure with type III nylon cord.
3 Cut and position a 36- by 36-inch piece of honeycomb flush against the front edge of the
second piece of honeycomb. This will be used for the M-1 release. Tape the edges and
secure with type III nylon cord.
Figure 8-24. Parachute Stowage Platform Positioned and Secured
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-61
Chapter 8
PREPARING AND STOWING CARGO PARACHUTES
8-29. Prepare and stow the 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 8-25.
3
1
2
8
11
2
1 Prepare, position, and stow three G-11B cargo parachutes on top of the pre-positioned
honeycomb at the rear of the load according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5.
2 Install the parachute restraints to the bushings bolted to platform clevises 8 and 8A and 11
and 11A.
3 Install the parachute release straps according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5.
Figure 8-25. Cargo Parachutes Prepared and Stowed
8-62
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
INSTALLING THE RELEASE SYSTEM
8-30. Prepare, attach, and safety an M-1 cargo parachute release according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 8-26.
3
3
2
4
5
3
3
4
1
1 Prepare and install the M-1 cargo parachute release according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 and position the M-1 cargo parachute
release assembly centered on the 36- by 36-inch honeycomb release platform.
2 Attach the suspension slings and riser extensions according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
3 S-fold the excess suspension slings and riser extensions. Secure with type I ¼-inch cotton
webbing.
4 Restrain the parachute release according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-
AB-MMO-010/TO 13C7-1-5.Tape the loose deadman’s using a single wrap of masking
tape.
5 Secure the arming wire and lanyard to the parachute carrying handle. S-fold any excess in
the lanyard and secure using a single wrap of masking tape.
Figure 8-26. M-1 Cargo Parachute Release Installed
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-63
Chapter 8
INSTALLING THE EXTRACTION SYSTEM
8-31. Install the 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 8-27.
1
2
3
D6
2
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.
2 Install a 16-foot EFTC cable according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-
AB-MMO-010/TO 13C7-1-5 and safety the cable to tiedown ring D6 with one turn of type I,
1/4-inch cotton webbing.
3 Attach a 9-foot (2-loop) type XXVI nylon sling according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 to be used as a deployment line. S-fold
the excess and tie it in two places with type I, 1/4-inch cotton webbing.
Figure 8-27. Extraction System Installed
8-64
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
PLACING EXTRACTION PARACHUTE
8-32. 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
8-33. 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
8-34. 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 8-28. 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
8-35. Use the equipment listed in Table 8-2 to rig this load.
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-65
Chapter 8
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.
CB
RIGGED LOAD DATA
Weight:
12,300 pounds
Minimum Weight
3,780 pounds
Maximum Suspended Weight
14,000 pounds
Height
73 inches
Width
108 inches
Overall Length
144 inches
Overhang: Front
0 inches
Rear
0 inches
Center of Balance (from front edge of the platform)
77 inches
Extraction System with 16-foot cable (adds 18 inches to length of platform)
EFTC
Figure 8-28. 155-MM Ammunition (MACS PAC) Rigged on a 12-Foot, Type V Platform for Low-
Velocity Airdrop
8-66
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
Table 8-2. Equipment Required for Rigging 155-MM Ammunition (MACS PAC) Rigged on a
12-Foot, Type V Platform for Low-Velocity Airdrop
National Stock Number
Item
Quantity
8040-00-273-8713
Adhesive, paste, 1-gallon
As required
8305-00-880-8155
Clevis, suspension: 1-inch (large)
5
4020-00-240-2146
Cord, nylon, type III
As required
1670-00-434-5785
Coupling, airdrop, extraction force transfer with
As required
16-foot cable
1
1670-00-360-0328
Cover, clevis, large
3
8135-00-664-6958
Cushioning material, packaging, cellulose wadding
As required
8310-00-958-3685
Felt, ½-inch thick
As required
1670-01-183-2678
Leaf, extraction line (line bag) (add 2 for C-17)
Line, extraction, type XXVI nylon webbing:
1670-01-062-6313
60-foot (3-loop), type XXVI
1
1670-01-468-9178
140-foot (6-loop), type XXVI
1
1670-01-064-4452
60-foot (1-loop), type XXVI for C-17 drogue line
1
1670-01-493-6418
Link assembly, two-point:
1
5351-00-010-4659
Nail, steel wire, common 8d
As required
1670-00-753-3928
Pad, energy-dissipating, honeycomb
44 sheets
Parachute:
1670-01-016-7841
Cargo, G-11
3
1670-00-063-3716
Cargo, extraction, 22-foot
1
1670-01-063-3715
Cargo, extraction, 15-foot for C-17
1
Platform, airdrop, type V, 16-foot
1
1670-00-128-4981
Plywood, ¾- by 48- by 96-inches
8 sheets
1670-01-353-8425
Bracket assembly, EFTC
1
1670-01-162-2372
Bracket assembly, extraction
1
1670-01-162-2376
Clevis assembly
48
1670-01-162-2381
Tandem link
4
1670-01-097-8817
Release, cargo parachute, M-1
1
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-67
Chapter 8
Table 8-2. Equipment Required for Rigging 155-MM Ammunition (MACS PAC) Rigged on a
12-Foot, Type V Platform for Low-Velocity Airdrop (Continued)
National Stock Number
Item
Quantity
Sling, cargo airdrop:
1670-01-062-6304
9-foot (2-loop), type XXVI nylon webbing
1
1670-01-063-7761
16-foot (2-loop), type XXVI nylon webbing
4
1670-01-062-6313
60-foot (3-loop), type XXVI nylon webbing
4
5340-00-040-8219
Strap parachute release, multicut
2
7501-00-266-5016
Tape, adhesive, 2-inch
As required
7501-00-266-6710
Tape, masking
As required
1670-00-937-0271
Tiedown assembly, 15-foot
52
1670-01-483-8259
Towplate release mechanism (H-block) (C-17)
1
Webbing:
8305-00-268-2411
Cotton, 1/4-inch, type I
As required
Nylon:
8305-00-082-5752
Tubular, 1/2-inch
As required
8305-00-268-2455
Tubular, 1/2-inch, OD 7
As required
8305-00-268-2455
Tubular, 1-inch
As required
8305-00-263-3591
Type VIII webbing
As required
8-68
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
SECTION III-RIGGING THE MACS PAC ON A 16-FOOT, TYPE V PLATFORM
DESCRIPTION OF LOAD
8-36. Ninety-six 155-mm projectiles, 72 power canisters and 12 fuse cans are rigged for low-velocity
airdrop on a 16-foot, type V platform. The load uses three G-11B cargo parachutes. Refer to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 for the weight limitations and for
the number of parachutes to be used.
Notes.
1. The load shown is using metal crates. However, wooden crates may be used with three
lashings and a load binder.
2. If the metal locking rods are missing, three lashings, D-rings and load binders will be needed.
PREPARING PLATFORM
8-37. Prepare a 16-foot, type V platform as shown in Figure 8-29.
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-69
Chapter 8
CLEVISES
22A THROUGH 1A
LEFT
REAR
FRONT
RIGHT
CLEVISES
22 THROUGH 1
Step:
1. Inspect, or assemble and inspect, a 16-foot, type V platform as outlined in TM 10-1670-
268-20&P/TO 13C7-52-22.
2. Install a tandem link to the front of each platform side rail using holes 1, 2, and 3.
3. Install a tandem link to the rear of each platform side rail using holes 30, 31, and 32.
4. Install clevises on bushings 2 and 3 of each front tandem link.
5. Install clevises on bushings 1 and 3 of each rear tandem link.
6. Starting at the front of each platform side rail, install clevises on the bushings bolted to
holes 4, 6, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, and 29.
7. Starting at the front of the platform, number the clevises 1 through 22 on the right side, and
1A through 22A on the left side.
8. Label the tiedown rings according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
Figure 8-29. Platform Prepared
8-70
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
BUILDING HONEYCOMB STACKS 1 AND 2 AND POSITIONING
STACK 1
8-38. Prepare honeycomb stacks 1 and 2 and position stack 1 as shown in Figure 8-30.
1
FRONT
1 Position stack 1 centered 6 inches from the front edge of the platform.
Stack
Pieces
Width
Length
Material
Instructions
Number
(Inches)
(Inches)
1 and 2
2
36
88
Honeycom
Form a two layer base 88 inches long and
b
60 inches wide. Alternate the layers of
honeycomb. Center the stack 6 inches
from the front edge of the platform.
2
24
88
Honeycom
Included with the first step.
b
8
15
5
Honeycom
Place two pieces of honeycomb on each
b
corner of the base with the 5-inch sides
facing the left and right sides of the
platform.
4
15
10
Honeycom
Center two pieces of honeycomb along
b
each side of the base with the 10-inch
sides facing the left and right sides of the
platform.
16
15
10
Honeycom
Evenly space two layer pieces of
b
honeycomb between the center and
corner pieces. The spaces between the
pieces are 4 1/2 inches.
Note. Do not glue the 15- by 5 and 15- by 10-inch honeycomb stacks to the base stack. Slight
adjustments may be necessary as you place the projectiles.
Figure 8-30. Honeycomb Stacks 1 and 2 Prepared and Stack 1 Positioned on the Platform
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-71
Chapter 8
POSITIONING AND SECURING THE FIRST AMMUNITION STACK
8-39. Position and secure the first ammunition stack as shown in Figure 8-31.
1
1 Tie the four center eyelets of each bundle together with 1-inch tubular nylon webbing.
Secure with a surgeon’s knot locking knot and cover with cloth backed tape. Use for lifting
purposes only.
THREE LASHINGS
Note. The racks of projectiles will need three lashings if the locking pins of the racks are missing.
Figure 8-31. Ammunition Positioned and Secured
8-72
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
2
2
2 Position three sets of projectiles flush on the honeycomb on each side. Fit the skids at the
bottom of the bundles into the slots in the honeycomb stack.
Figure 8-31. Ammunition Positioned and Secured (Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-73
Chapter 8
3
4
3
3 Place a 15-foot tiedown lashing 8 inches from the front and rear edge of honeycomb stack
1 in a right to left direction according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
4 Place a 15-foot tiedown lashing 24 inches from the front and rear edge of honeycomb
stack 1 in a right to left direction according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5.
Figure 8-31. Ammunition Positioned and Secured (Continued)
8-74
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
10
9
8
7
5
10
9
8
6
7
5
5 Position four powder canisters on each of the pre-positioned lashings with the canister
openings to the center.
6 Place a 30- by 27-inch piece of honeycomb over each group of four canisters.
7 Place a second layer of powder canisters on top of the 30- by 27-inch piece of honeycomb
which was placed over each group.
8 Place a second layer of 30- by 27-inch honeycomb over the second layer of each canister
group.
9 Place a third layer of four powder canisters on top of the 30- by 27-inch piece of
honeycomb over each group.
10 Secure the pre-positioned lashings over the canisters. Pad the area between the canisters
and the load binders with a piece of felt.
Figure 8-31. Ammunition Positioned and Secured (Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-75
Chapter 8
11
14
12
11 Cut four 24- by 24-inch pieces of honeycomb and place them between the canisters to
form a box.
12 Place six fuse cans in the honeycomb box.
13 Cut an 18- by 24-inch piece of honeycomb and position it over the fuse cans. (Not shown)
14 Place six fuse cans on top of the 18- by 24-inch piece of honeycomb.
15 Cut two 18- by 24-inch pieces of honeycomb and place on top of the second layer of fuse
cans to fill the empty space in the honeycomb box. (Not shown)
16
16 Cut and center a 30- by 88-inch piece of honeycomb over the canisters.
Figure 8-31. Ammunition Positioned and Secured (Continued)
8-76
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
CONSTRUCTING ENDBOARDS
8-40. Construct four endboards as shown in Figure 8-32.
Notes.
1. This drawing is not to scale.
2. All dimensions are in inches.
Step:
1. Cut eight 3/4- by 60- by 38-inch pieces of plywood.
2. Make 2- by 3-inch cutouts as shown.
3. Nail two pieces of plywood flush together with 6d nails to make the four endboards.
4. Pad the cutouts with cellulose wadding and tape.
Figure 8-32. Endboards Constructed
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-77
Chapter 8
LASHING THE FIRST AMMUNITION STACK AND USING THE
FIRST AND SECOND ENDBOARDS
8-41. Lash the first ammunition stack and use the first and second endboards according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 8-33.
3
1
2
4
8
7
6
4
Lashing Number
Tiedown Clevis
Instructions
Number
1
4 and 4A
Pass a 30-foot lashing through both clevises and through
the third cut-out from the top of the front endboard. Secure
the lashing to the front right side with two D-rings and a load
binder.
2
6 and 6A
Pass a 30-foot lashing through both clevises and through
the second cut-out from the top of the front endboard.
Secure the lashing to the front right side with two D-rings
and a load binder.
3
7 and 7A
Pass a 30-foot lashing through both clevises and through
the top cut-out of the rear endboard. Secure the lashing to
the right side with two D-rings and a load binder.
4
8 and 8A
Pass a 30-foot lashing through both clevises and through
the third cut-out from the top of the rear endboard. Secure
the lashing to the right side with two D-rings and a load
binder.
Figure 8-33. First Ammunition Stack Lashed Using the First and Second Endboards
8-78
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
6
8
5
5
7
7
2
1
11
10
Lashing Number
Tiedown Clevis
Instructions
Number
5
1 and 10
Route a 15-foot lashing through clevis 1 and through its
own D-ring. Route the lashing through the second cut-out
from the top of the front endboard of the left side. Route a
15-foot lashing through clevis 10 and through its own D-
ring. Route the lashing through the second cut-out from the
top of the rear endboard on the left side. Secure with a load
binder and D-rings on the left side.
6
1A and 10A
Route a 15-foot lashing through clevis 1A and through its
own D-ring. Route the lashing through the second cut-out
from the top of the front endboard of the right side. Route a
15-foot lashing through clevis 10A and through its own D-
ring. Route the lashing through the second cut-out from the
top of the rear endboard on the right side. Secure with a
load binder and D-rings on the right side.
7
2 and 11
Route a 15-foot lashing through clevis 2 and through its
own D-ring. Route the lashing through the third cut-out from
the top of the front endboard of the left side. Route a 15-foot
lashing through clevis 11 and through its own D-ring. Route
the lashing through the third cut-out from the top of the rear
endboard on the left side. Secure with a load binder and D-
rings on the left side.
8
2A and 11A
Route a 15-foot lashing through clevis 2A and through its
own D-ring. Route the lashing through the third cut-out from
the top of the front endboard of the right side. Route a 15-
foot lashing through clevis 11A and through its own D-ring.
Route the lashing through the third cut-out from the top of
the rear endboard on the right side. Secure with a load
binder and D-rings on the right side.
Figure 8-33. First Ammunition Stack Lashed Using the First and Second Endboards
(Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-79
Chapter 8
11
10
9
9
5
3
Lashing Number
Tiedown Clevis
Instructions
Number
9
3 and 3A
Pass a 30-foot lashing through both clevises and over the
top of the load. Secure the lashing on the right side with two
D-rings and a load binder.
10
5 and 5A
Pass a 30-foot lashing through both clevises and over the
top of the load. Secure the lashing on the right side with two
D-rings and a load binder.
11
9 and 9A
Pass a 30-foot lashing through both clevises and over the
top of the load. Secure the lashing on the right side with two
D-rings and a load binder.
Figure 8-33. First Ammunition Stack Lashed Using the First and Second Endboards
(Continued)
8-80
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
POSITIONING STACK 2 AND POSITIONING AND SECURING THE
SECOND AMMUNITION STACK
8-42. Position honeycomb stack 2 and position and secure the second ammunition stack according to FM
4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 8-34.
1
1 Tie the four center eyelets of each bundle together with 1-inch tubular nylon webbing for
lifting purposes only.
2
2 Position stack 2 six inches and centered from the rear edge of the platform.
Figure 8-34. Honeycomb Stack 2 Positioned and the Second Ammunition Stack Positioned
and Secured
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-81
Chapter 8
3
3 Position three sets of projectiles flush on the honeycomb on each side. Fit the skids at the
bottom of the bundles into the slots in the honeycomb stack.
4
5
4
4 Place a 15-foot tiedown lashing 8 inches from the front and rear edge of honeycomb stack
2 in a right to left direction according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
5 Place a 15-foot tiedown lashing 24 inches from the front and rear edge of honeycomb
stack 2 in a right to left direction according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5.
Figure 8-34. Honeycomb Stack 2 Positioned and the Second Ammunition Stack Positioned
and Secured (Continued)
8-82
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
10
11
12
11
10
9
8
7
6
6 Position four powder canisters on each of the pre-positioned lashings with the canister
openings to the center.
7 Place a 30- by 27-inch piece of honeycomb over each group of four canisters.
8 Place a second layer of powder canisters on top of the 30- by 27-inch piece of honeycomb
which was placed over each group.
9 Place a second layer of 30- by 27-inch honeycomb over the second layer of each canister
group.
10 Place a third layer of four powder canisters on top of the 30- by 27-inch piece of
honeycomb over each group.
11 Secure the pre-positioned lashings over the canisters with two D-rings and a load binder.
Pad the area between the canisters and the load binders with a piece of felt.
12 Cut eight 30- by 30-inch pieces of honeycomb and place them in between the powder
canisters.
Figure 8-34. Honeycomb Stack 2 Positioned and the Second Ammunition Stack Positioned
and Secured (Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-83
Chapter 8
13
13 Cut and center a 30- by 88-inch piece of honeycomb over the canisters.
Figure 8-34. Honeycomb Stack 2 Positioned and the Second Ammunition Stack Positioned
and Secured (Continued)
8-84
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
LASHING THE SECOND AMMUNITION STACK AND USING THE
THIRD AND FOURTH ENDBOARDS
8-43. Lash the second ammunition stack and use the third and fourth endboards according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 8-35.
15
13
14
17
12
19
16
15
Lashing Number
Tiedown Clevis
Instructions
Number
12
15 and 15A
Pass a 30-foot lashing through both clevises and through the
third cutout from the top of the front endboard. Secure the
lashing to the front left side with two D-rings and a load binder.
13
16 and 16A
Pass a 30-foot lashing through both clevises and through the
second cutout from the top of the front endboard. Secure the
lashing to the front left side with two D-rings and a load binder.
14
17 and 17A
Pass a 30-foot lashing through both clevises and through the
third cutout from the top of the front endboard. Secure the
lashing to the front left side with two D-rings and a load binder.
15
19 and 19A
Pass a 30-foot lashing through both clevises and through the
second cutout from the top of the front endboard. Secure the
lashing to the front left side with two D-rings and a load binder.
Figure 8-35. Second Ammunition Stack Lashed Using the Third and Fourth Endboards
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-85
Chapter 8
17
17
16
18
19
19
22
21
13
12
16
16
18
18
21
22
Lashing Number
Tiedown Clevis
Instructions
Number
16
12 and 21
Route a 15-foot lashing through clevis 12 and through its own
D-ring. Route the lashing through the second cut-out from the
top of the front endboard of the left side. Route a 15-foot
lashing through clevis 21 and through its own D-ring. Route
the lashing through the second cut-out from the top of the rear
endboard on the left side. Secure with a load binder and D-
rings on the left side.
17
12A and 21A
Route a 15-foot lashing through clevis 12A and through its
own D-ring. Route the lashing through the second cut-out from
the top of the front endboard of the right side. Route a 15-foot
lashing through clevis 21A and through its own D-ring. Route
the lashing through the second cut-out from the top of the rear
endboard on the right side. Secure with a load binder and D-
rings on the right side.
18
13 and 22
Route a 15-foot lashing through clevis 13 and through its own
D-ring. Route the lashing through the third cut-out from the top
of the front endboard of the left side. Route a 15-foot lashing
through clevis 22 and through its own D-ring. Route the
lashing through the third cut-out from the top of the rear
endboard on the left side. Secure with a load binder and D-
rings on the left side.
19
13A and 22A
Route a 15-foot lashing through clevis 13A and through its
own D-ring. Route the lashing through the third cut-out from
the top of the front endboard of the right side. Route a 15-foot
lashing through clevis 22A and through its own D-ring. Route
the lashing through the third cut-out from the top of the rear
endboard on the right side. Secure with a load binder and D-
rings on the right side.
Figure 8-35. Second Ammunition Stack Lashed Using the Third and Fourth Endboards
(Continued)
8-86
FM 4-20.112/TO 13C7-1-8
20 February 2009
Rigging 155-Millimeter (MM) Ammunition Modular Artillery Charge System Package (MACS PAC) on a
Type V Platform for Low-Velocity Airdrop
23
23
24
24
21
20
18
14
22
20
Lashing Number
Tiedown Clevis
Instructions
Number
20
14 and 14A
Pass a 30-foot lashing through both clevises and over the top
of the load. Secure the lashing to the right side with two D-
rings and a load binder.
21
18 and 18A
Pass a 30-foot lashing through both clevises and over the top
of the load. Secure the lashing to the right side with two D-
rings and a load binder.
22
20 and 20A
Pass a 30-foot lashing through both clevises and over the top
of the load. Secure the lashing to the right side with two D-
rings and a load binder.
23
Pass a 45-foot lashing around the entire load through the top
cut-outs of all four endboards passing under all the other
lashings. Secure the lashing on the right side with two D-rings
and a load binder.
24
Pass a 45-foot lashing around the entire load through the top
cut-outs of all four endboards passing under all the other
lashings. Secure the lashing on the right side with two D-rings
and a load binder.
Figure 8-35. Second Ammunition Stack Lashed Using the Third and Fourth Endboards
(Continued)
20 February 2009
FM 4-20.112/TO 13C7-1-8
8-87
Chapter 8
INSTALLING SUSPENSION SLINGS AND DEADMAN’S TIE
8-44. Install the suspension slings and deadman’s tie according to FM 4-20.102/MCRP 4-11.3J/NAVSEA
SS400-AB-MMO-010/TO 13C7-1-5 and as shown in Figure 8-36.
1
2
3
1 Pass one end of a 16-foot (2-loop), type XXVI nylon suspension sling through the bell
portion of a large suspension clevis. Bolt the clevis to the suspension hole of the right front
tandem link.
2 Install on the left front tandem link and the right rear and left rear tandem links a 16-foot (2-
loop), type XXVI nylon suspension sling as in step 1.
3 Raise the slings and install the deadman's tie according to FM 4-20.102/MCRP 4-
11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
Figure 8-36. Suspension Slings and Deadman’s Tie Installed
8-88
FM 4-20.112/TO 13C7-1-8
20 February 2009

 

 

 

 

 

 

 

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