Главная Manuals FM 4-20.127 Airdrop of Supplies and Equipment: Rigging M198, 155-MM Howitzer (JUNE 2004)
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FM 4-20.127/TO 13C7-10-191
Table 1-1. Equipment Required for Rigging a M198, 155-mm Howitzer for Low-Velocity Airdrop
National Stock
Item
Quantity
Number
8040-00-273-8713
Adhesive paste, 1-gal
As required
1670-01-035-6054
Bridle, extraction line bag (for DES
)
1
4030-00-090-5354
Clevis, large
3
4030-00-432-2516
Clevis, suspension, with screw pin and sleeve, shackle
4
8305-00-880-8155
Cloth, coated (nylon, type II, 17 oz, green, 60 in)
As required
4020-00-240-2146
Cord, nylon, type III, 550-lb
As required
1670-00-434-5787
Coupling, airdrop, EFTC with cable, 20-ft
1
1670-00-360-0328
Cover, clevis, large
5
8135-00-664-6958
Cushioning material, packaging, cellulose wadding
As required
1670-01-183-2678
Leaf, extraction line, (line bag) (add 1 for DES
)
2
1670-00-003-4391
Knife, parachute bag (for DES
)
1
Line, drogue (for DES
)
1670-01-064-4452
60-ft 1-loop, type XXV I
1
Line, extraction, type XXVI nylon webbing
1670-01-062-6313
60-ft (3-loop, C-130
)
1
1670-01-107-7651
140-ft (3-loop, C-17, C-5)
1
Link
1670-01-493-6418
Assembly small, two-point, 3 3/4-in
2
1670-01-483-8259
C-17 TRM link
1
Lumber:
5510-00-220-6148
2- by 6- by 12-in
2
2- by 6- by 45-in
2
2- by 6- by 85-in
2
5510-00-220-6248
2- by 10- by 12-in
6
5510-00-220-6248
2- by 10- by 57-in
4
Nail, steel wire, common,
5315-00-164-5121
20d
As required
5315-00-010-4659
8d
As required
1-31
FM 4-20.127/TO 13C7-10-191
Table 1-1. Equipment Required for Rigging a M198, 155-mm Howitzer for Low-Velocity
Airdrop (Continued)
National Stock
Item
Quantity
Number
1670-00-753-3928
Pad, energy dissipating, honeycomb, 3- by 36- by
96-in
34
sheets
Parachute:
1670-01-016-7481
Cargo: G-11B/C
/
1670-00-040-8135
Cargo extraction 28-foot
1
1670-01-063-3715
Cargo extraction,15-foot (Drogue for DES
)
1
Platform, airdrop type
V
, 24-ft
1670-01-353-8425
Bracket assembly, coupling
1
1670-01-353-8424
Bracket, assembly, extraction
1
1670-01-162-2372
Clevis assembly, type
V
, tiedown clevis
26
1670-01-162-2381
T
andem link assembly (Multipurpose link)
2
5530-00-128-4981
Plywood, 3/4-in by 48- by 96 inch sheet
4
1670-01-097-8817
Release, cargo parachute, M-2
1
Sling, cargo airdrop
For suspension:
1670-01-062-6305
9-ft (4-loop), type XXVI nylon webbing
4
1670-01-062-6307
12-ft (4-loop), type XXVI nylon webbing
8
For deployment:
1670-01-062-6304
9-ft (2-loop), type XXVI nylon webbing
1
For riser extentsion
:
1670-01-062-6311
120-ft (2-loop), type XXVI nylon webbing
5
5340-00-040-8219
Strap, parachute release, multicut
2
7510-00-266-5016
T
ape, adhesive, 2-in
As required
7510-00-266-6710
T
ape, masking, 2-in
As required
1670-00-937-0271
Tie-down assembly, 15-ft
28
5365-00-937-0147
D-ring, heavy duty, 10,000-lb
29
1670-00-937-0272
Binder, load, 10,000
27
Webbing:
8305-00-268-2411
Cotton, 1/4-in, type I
As required
Nylon:
8305-00-082-5752
Tubular, 1/2-in
As required
8305-00-263-3591
T
ype VIII
As required
1-32
FM 4-20.127/TO 13C7-10-191
Chapter 2
Rigging M198, 155-MM Howitzer with Accompanying
Ammunition Load on a Type V Platform
DESCRIPTION OF LOAD
2-1. The M198, 155-mm howitzer is rigged on a 24-foot, type V airdrop
platform for low-velocity airdrop from C-130, C-17, and C-5 aircraft.
The howitzer is dropped with an accompanying load of ammunition, water
cans, and gun equipment weighing 1,509 pounds. The load requires five
G-11C cargo parachutes.
PREPARING PLATFORM
2-2. Prepare a 24-foot, type V airdrop platform according to TM 10-1670-268-
20&P/TO 13C7-52-22. Install four suspension brackets, two tandem links,
and 48 clevis assemblies as shown in Figure 2-1.
Notes:
1. The nose bumper may or may not be installed.
2. Measurements given in this chapter are from the front edge of the
platform, NOT from the front edge of the nose bumper.
2-1
FM 4-20.127/TO 13C7-10-191
TIE-DOWN
CLEVISES 22A THROUGH 1A
RINGS
D
TIE-DOWN
C
LEFT
RINGS
B
ROW B
A
ROW A
REAR
FRONT
RIGHT
CLEVISES 22 THROUGH 1
Step:
1.
Inspect, or assemble and inspect, the platform according to TM 10-1670-268-
20&P/TO 13C7-52-22.
2.
Install a suspension bracket in holes 9, 10, and 11 on each platform side rail.
Face the flat part of the link to the front of the rail.
3.
Install a suspension bracket in holes 38, 39, and 40 on each platform side
rail. Face the flat part of the link to the rear of the rail.
4.
Install a tandem link on each platform side rail holes 1, 2, and 3.
5.
Install a clevis on bushings 1 and 4 on each front tandem link.
6.
Install a clevis on bushings 3 and 4 on each rear suspension bracket.
7.
Starting at the front of each platform side rail, install clevises on each plat-
form side rail using bushings bolted on holes 6, 20, 23, 25, 27, 30, 33, 34, 36,
42, 43, 44, 45, and 46, 47 (triple), 48 (triple).
8.
Starting at the front of each platform side rail, number the clevises bolted to the
right side from 1 through 22 and those bolted to the left side from 1A through 22A.
9.
Starting at the front of the platform, label the two tie-down rings in the first 11
panels A and B from right to left. Label the four tie-down rings in the last panel
A, B, C, and D from right to left. Starting with the first panel, number the tie-down
rings 1 through 12.
Figure 2-1. Platform Prepared
2-2
FM 4-20.127/TO 13C7-10-191
RIGGING ACCOMPANYING AMMUNITION LOAD
2-3. Rig the accompanying ammunition load (two groups of eight projectiles
each) on the rear of the platform as shown in Figures 2-2 through 2-7.
B11
A11
D12
C12
B12
A12
4
3
2
1
1
Pass a 15-foot lashing through tie-down rings A12 and A11.
2
Pass a 15-foot lashing through tie-down rings B12 and A11.
3
Pass a 15-foot lashing through tie-down rings C12 and B11.
4
Pass a 15-foot lashing through tie-down rings D12 and B11.
Figure 2-2. Lashings Positioned
2-3
FM 4-20.127/TO 13C7-10-191
1
1
Center two 96- by 31-inch pieces of honeycomb on top of the lashings 6 inches
from the rear edge of the platform.
Figure 2-3. Honeycomb Positioned
2-4
FM 4-20.127/TO 13C7-10-191
1
2
2
1
Bind each group of projectiles together with a 15-foot lashing. Place one group of
projectiles on each end of the honeycomb 3 inches from each side. Face the base
ends of the projectiles to the rear of the platform.
2
Cut four 5- by 13-inch pieces of honeycomb and two 10- by 13-inch pieces of
honeycomb. Place the 10- by 13-inch pieces of honeycomb between the slots at the
rear of the projectile groups. Place a 5- by 13-inch piece of honeycomb on each end
of the rear of the projectile groups.
Figure 2-4. Projectiles Positioned
2-5
FM 4-20.127/TO 13C7-10-191
Notes:
1. This drawing is not to scale.
2. All measurements are given in inches.
29 1/2
37
29 1/2
4
2
12
4
2
24
PLYWOOD
3
3/4 X 24 X 96
1
96
1
Cut three endboards as shown above.
Figure 2-5. Endboards Prepared
2
3
3
1
1
Place two endboards against the rear of the load.
2
Place one endboard against the front of the load.
3
Tape all cutouts and edges where the lashings will contact the endboards.
Figure 2-6. Endboards Positioned
2-6
FM 4-20.127/TO 13C7-10-191
1
3
C12
B12
2
1
Place two 36- by 31-inch pieces of honeycomb between the two projectile groups.
2
Pass the pre-positioned lashing in tie-down rings A11 and B12 through the lower
cutouts in the right side of endboards. Secure the lashing with a D-ring and load
binder on the right side of the projectiles.
3
Repeat step 2 for tie-down rings B11 and C12 for the left side of the endboards.
Figure 2-7. Projectiles Lashed to Platform
2-7
FM 4-20.127/TO 13C7-10-191
21A
5
4
6
4
14
18
21
4
Pass a 15-foot lashing through clevis 21 and through its own D-ring. Pass the
lashing around the center cutouts of the endboards. Invert clevis 14, and secure
the lashing with a D-ring and load binder to clevis 14.
5
Repeat step 4 for clevises 21A and 14A.
6
Form a 30-foot lashing according to FM 4-20.102/NAVSEA SS400-AB-MMO-010/
TO 13C7-1-5. Pass one end of the lashing through clevis 18 and the other end
through clevis 18A. Secure the ends of the lashing on top of the projectiles with two
D-rings and a load binder.
Note: Leave a little slack in the lashing. When the howitzer is positioned
on the platform, the lashing will tighten itself.
Figure 2-7. Projectiles Lashed to Platform (Continued)
2-8
FM 4-20.127/TO 13C7-10-191
10
8
9
7
8
7
D12
A12
7
Place a 29- by 31-inch piece of honeycomb flush on top of each projectile group.
8
Place a 3/4- by 29- by 31-inch piece of plywood on top of each piece of honeycomb
placed in step 7.
9
Pass the pre-positioned lashing in tie-down rings A12 and A11 over the top of the
projectile group. Secure the lashing on top with a D-ring and load binder.
10
Repeat step 9 for tie-down rings D12 and B11 for the left projectile group.
Figure 2-7. Projectiles Lashed to Platform (Continued)
2-9
FM 4-20.127/TO 13C7-10-191
11
12
15
16
11
Form a 30-foot lashing according to FM 4-20.102/NAVSEA SS400-AB-MMO-010/
TO 13C7-1-5. Run the lashing through clevises 15 and 15A and through the upper
cutouts in the rear endboards. Secure the lashing on the right side of the rear
endboards with two D-rings and a load binder.
12
Form a 30-foot lashing according to FM 4-20.102/NAVSEA SS400-AB-MMO-010/
TO 13C7-1-5. Run the lashing through clevises 16 and 16A and through the lower
cutouts in the rear endboards. Secure the lashing on the left side of the rear
endboards with two D-rings and a load binder.
Figure 2-7. Projectiles Lashed to Platform (Continued)
2-10
FM 4-20.127/TO 13C7-10-191
14
13
19
17
13
Form a 30-foot lashing according to FM 4-20.102/NAVSEA SS400-AB-MMO-010/
TO 13C7-1-5. Run the lashing through clevises 17 and 17A and through the lower
cutouts in the front endboard. Secure the lashing on the right side of the front
endboard with two D-rings and a load binder.
14
Form a 30-foot lashing according to FM 4-20.102/NAVSEA SS400-AB-MMO-010/
TO 13C7-1-5. Run the lashing through clevises 19 and 19A and through the upper
cutouts in the front endboard. Secure the lashing on the left side of the front
endboard with two D-rings and a load binder.
Figure 2-7. Projectiles Lashed to Platform (Continued)
2-11
FM 4-20.127/TO 13C7-10-191
PREPARING AND POSITIONING HONEYCOMB STACKS
2-4. Prepare five honeycomb stacks as shown in Figures 2-8 through 2-11
using the materials listed in Table 2-1. Position the honeycomb stacks on
the platform as shown in Figure 2-12.
Table 2-1. Materials Needed to Prepare Honeycomb Stacks
Stack
Width
Length
Pieces
Material
Instructions
Number
(Inches)
(Inches)
1
3
96
36
Honeycom b
See Figure 2-8.
1
96
36
3/4-inch Plywood
2
18
36
3/4-inch Plywood
4
6
36
2- by-6-inch Lumber
4
58
36
Honeycom b
2
7
80
30
Honeycom b
See Figure 2-9.
3
12
30
18
Honeycom b
See Figure 2-10.
1
30
18
3/4-inch Plywood
2
30
18
Honeycom b
4
2*
18
96
Honeycom b
See Figure 2-11.
2*
18
54
Honeycom b
1
18
96
3/4-inch Plywood
1
18
54
3/4-inch Plywood
3*
18
96
Honeycom b
3*
18
54
Honeycom b
1
18
88
3/4-inch Plywood
1
18
48
3/4-inch Plywood
1
18
96
Honeycom b
1
18
54
Honeycom b
5
2
18
96
Honeycom b
See Figure 2-11.
2*
18
54
Honeycom b
1
18
96
3/4-inch Plywood
1
18
54
3/4-inch Plywood
3*
18
96
Honeycom b
3*
18
54
Honeycom b
1
18
88
3/4-inch Plywood
1
18
48
3/4-inch Plywood
1
18
96
Honeycom b
1
18
54
Honeycom b
*Alternate the sizes of honeycomb in each layer.
2-12
FM 4-20.127/TO 13C7-10-191
4
3
2
3
4
1
6
30
30
1
Glue and place three 96- by 36-inch pieces of honeycomb as the base.
2
Glue and place a 3/4- by 96- by 36-inch piece of plywood on top of the base.
3
Glue and place one 3/4- by 18- by 36-inch piece of plywood on top of the 3/4- by
96- by 36-inch piece of plywood, flush with each side edge.
4
Glue and place two 2- by 6- by 36-inch pieces of lumber side by side. Place them
on top of each 3/4- by 18- by 36-inch piece of plywood, flush with each side edge.
5
Nail the pieces of plywood and lumber together using 10d nails (Not Shown).
6
Lay one 15-foot lashing on top of the base stack, 30-inches from each side.
Figure 2-8. Honeycomb Stack 1 Prepared
2-13
FM 4-20.127/TO 13C7-10-191
7
8
7
Center four 58- by 36-inch pieces of honeycomb on top of the lashings. Tape the
front and rear edges of the top and bottom layers of the 58- by 36-inch honeycomb.
NOTE: Do not glue the 58- by 36-inch pieces of honeycomb to the plywood.
8
Pass both lashings (step 6) over the stack. Pass the free ends through their own
D-rings. Pull the lashing tight, and secure them on the front of the stack. Fold
and tape the excess lashings.
Figure 2-8. Honeycomb Stack 1 Prepared (Continued)
1
1
Glue and place seven 80- by 30-inch pieces of honeycomb to form a stack.
Figure 2-9. Honeycomb Stack 2 Prepared
2-14
FM 4-20.127/TO 13C7-10-191
3
2
1
1
Place twelve 30- by 18-inch pieces of honeycomb as the base.
2
Place one 3/4- by 30- by 18-inch piece of plywood on top of the base.
3
Place two 30- by 18-inch pieces of honeycomb on top of the plywood.
Figure 2-10. Honeycomb Stack 3 Prepared
2-15
FM 4-20.127/TO 13C7-10-191
FRONT
5
6
REAR
4
3
2
1
1
Alternate two 18- by 96-inch pieces of honeycomb and two 18- by 54-inch pieces of
honeycomb to form a two-layer 150 inch base.
2
Place one 3/4- by 18- by 96-inch piece of plywood and one 3/4- by 18- by 54-inch
piece of plywood on top of the base to form a 150 inch layer.
3
Alternate three 18- by 96-inch pieces of honeycomb and three 18- by 54-inch pieces
of honeycomb to form three 150 inch layers on top of the plywood.
4
Place one 3/4- by 18- by 88-inch piece of plywood on top of the honeycomb flush
with the front edge of the stack.
5
Place one 3/4- by 18- by 48-inch piece of plywood on top of the 3/4- by 18- by 88-inch
piece of plywood flush with the front edge of the stack.
6
Place one 18- by 96-inch piece of honeycomb and one 18- by 54-inch piece of
honeycomb on top of the stack to form a 150 inch layer.
7
Repeat steps 1 through 6 for honeycomb stack 5.
Figure 2-11. Honeycomb Stacks 4 and 5 Prepared
2-16
FM 4-20.127/TO 13C7-10-191
Notes: 1. This drawing is not to scale.
2. All measurements are given in inches
ACCOMPANYING
LOAD
LEFT
10
51
30
STACK 1
ST
ACK 3
53
STACK 2
REAR
FRONT
30
51
10
RIGHT
14
Stack
Position of Stack on Platform
Number
Place stack:
29 inches from the front edge of the platform and centered.
1
Flush against stack 1 and centered.
2
53 inches from stack 2 and centered. Make sure the highest part of the stack is on
3
the left side of the platform
36 inches from the rear edge of the platform. Place the front outside corner 10 inches
4
from the front right rail. Place the rear outside corner 30 inches from the right rail.
36 inches from the rear edge of the platform. Place the front outside corner
10
5
inches from the left rail. Place the rear outside corner 30 inches from the left rail.
Figure 2-12. Honeycomb Stacks Positioned on Platform
2-17
FM 4-20.127/TO 13C7-10-191
STOWING ACCOMPANYING EQUIPMENT
2-5. Stow the accompanying equipment as shown in Figures 2-13 and 2-14.
1
2
1
Center two 15-foot lashings 18 inches apart between honeycomb stacks 2 and 3.
2
Place one 30- by 53-inch piece of honeycomb on top of the lashings.
Figure 2-13. Accompanying Equipment Stowed
2-18
FM 4-20.127/TO 13C7-10-191
3
4
3
Place seven powder canisters on top of the honeycomb.
4
Wedge a 3- by 30-inch piece of honeycomb on its edge between the rear of the
powder canisters and the front edge of honeycomb stack 3.
6
5
5
Place a 30- by 50-inch piece of honeycomb on top of the seven powder canisters.
6
Place seven powder canisters on top of the honeycomb.
Figure 2-13. Accompanying Equipment Stowed (Continued)
2-19
FM 4-20.127/TO 13C7-10-191
10
9
11
8
7
7
Place a 30- by 50-inch piece of honeycomb on top of the seven powder canisters.
8
Place two powder canisters side by side against the honeycomb placed in step 4.
9
Place a 20-by 30-inch piece of honeycomb on top of the two powder canisters.
10
Tie the section chest closed with two lengths of 1/2-inch tubular nylon webbing.
Center the section chest against the honeycomb placed in step 5.
11
Tie the collimator to the ties on the right side of the section chest with 1/2-inch
tubular nylon webbing.
Figure 2-13. Accompanying Equipment Stowed (Continued)
2-20
FM 4-20.127/TO 13C7-10-191
12
13
FRONT
12
Place two fuse boxes to the left of the section chest. Tie the handles of the fuse
boxes together with type III nylon cord. Tie the fuse boxes to the section chest
latches with type III nylon cord.
13
Pass the 15-foot lashings positioned in step 1 through the handles on the front of
the section chest. Secure the lashings on top of the section chest with D-rings
and load binders.
Figure 2-13. Accompanying Equipment Stowed (Continued)
2-21
FM 4-20.127/TO 13C7-10-191
14
15
16
Stack 4
14
Tape cellulose wadding around the shovels, ax, sledgehammer, pail, and loader.
Place the shovels, ax, and sledgehammer inside the pail. Secure them together
with type III nylon cord.
15
Tape a piece of honeycomb (Not Shown) to the bottom of two water cans. Place
one filled water can on each side of the powder canisters flush against honeycomb
stack 2. Secure the water cans to the powder canisters with type III nylon cord.
16
Place the shovels, ax, sledgehammer, and pail between the powder canisters and
honeycomb stack 4. Secure them to the powder canisters with type III nylon cord.
17
Place the loader between the powder canisters and honeycomb stack 5. Secure
the loader to the powder canisters with type III nylon cord (Not Shown).
Figure 2-13. Accompanying Equipment Stowed (Continued)
2-22
FM 4-20.127/TO 13C7-10-191
1
2
1
Place a 60- by 60-inch canvas cover over the equipment. Secure it with type III
nylon cord.
2
Pass a 15-foot lashing through clevis 4 and through its own D-ring. Pass another
15-foot lashing through clevis 14A and through its own D-ring. Secure the lashings
on top of of the load with two D-rings and a load binder.
Note: Leave a little slack in the lashings. When the howitzer is positioned
on the platform, the lashings will tighten themselves.
Figure 2-14. Accompanying Equipment Lashed to Platform
2-23
FM 4-20.127/TO 13C7-10-191
PREPARING HOWITZER
2-6. Prepare the howitzer as shown in Paragraph 1-5, Figures 1-6 through
1-14.
INSTALLING LIFTING SLINGS AND POSITIONING HOWITZER
2-7. Install lifting slings and position the howitzer on the platform as
shown in Figure 2-15.
1
2
5
3
1
Bolt a 12-foot (4-loop), type XXVI nylon webbing sling to the lifting clevis on each
trail with a large suspension clevis.
2
Bolt a 9-foot (4-loop), type XXVI nylon webbing sling to each top carriage hoisting
link with a large suspension clevis.
Note: Raise the wheels when the howitzer is lifted off the ground. Lock the
wheels in the UP position.
3
Center the right trail on honeycomb stack 4.
4
Center the left trail on honeycomb stack 5 (Not Shown).
5
Let the lunette overhang the rear of the platform by 5 inches.
Figure 2-15. Howitzer Positioned
2-24
FM 4-20.127/TO 13C7-10-191
6
6
Ensure the tube support blocks are resting solidly on honeycomb stack 3.
7
Remove the lifting slings (Not Shown).
Figure 2-15. Howitzer Positioned (Continued)
2-25
FM 4-20.127/TO 13C7-10-191
LASHING HOWITZER
2-8. Lash the howitzer to the platform using thirty-two 15-foot tie-down
assemblies. Install the lashings as shown in Figures 2-16 through 2-20.
4
1
2
1A
5
3
7
B1
A1
3
2
1
Tie-dow n
Lashin g
Clevis
Instruction s
Number
Number
Pass lashing:
1
A1
Through right front tie-dow n provision on low er carriage.
2
B1
Through left front tie-dow n provision on low er carriage.
3
1
Through right front tie-dow n provision on low er carriage.
4
1A
Through left front tie-dow n provision on low er carriage.
5
2
Through right locking plug hole on low er carriage.
6
2A
Through left locking plug hole on low er carriage.
7
3
Through tie-dow n provision on right trail.
8
3A
Through tie-dow n provision on left trail.
Figure 2-16. Lashings 1 through 8 Installed
2-26
FM 4-20.127/TO 13C7-10-191
11
9
15
13
8
7
6
5
Tie-dow n
Lashin g
Clevis
Instruction s
Number
Number
Pass lashing:
9
5
Around trail lock on right trail
10
5A
Around trail lock on left trail.
11
6
Around trail lock on right trail.
12
6A
Around trail lock on left trail.
13
7
Through tie-dow n provision on right trail.
14
7A
Through tie-dow n provision on left trail.
15
8
Through tie-dow n provision on right trail.
16
8A
Through tie-dow n provision on left trail.
Figure 2-17. Lashings 9 through 16 Installed
2-27
FM 4-20.127/TO 13C7-10-191
19
17
11
9
Tie-dow n
Lashin g
Clevis
Instruction s
Number
Number
Pass lashing:
17*
9
Through clevis on right corner of cradle assembly.
18*
9A
Through clevis on left corner of cradle assembly.
19*
11
Through clevis on right corner of cradle assembly.
20*
11A
Through clevis on left corner of cradle assembly.
*30-foot lashing
Figure 2-18. Lashings 17 through 20 Installed
2-28
FM 4-20.127/TO 13C7-10-191
23
21
12
10
Tie-dow n
Lashin g
Clevis
Instruction s
Number
Number
Pass lashing:
21
10
Through tie-dow n provision on right trail.
22
10A
Through tie-dow n provision on left trail.
23
12
Over ammunition load and through lunette.
24
12A
Over ammunition load and through lunette.
Figure 2-19. Lashings 21 through 24 Installed
2-29
FM 4-20.127/TO 13C7-10-191
26
25
27
28
22A
C12
B12
22
Tie-dow n
Lashin g
Clevis
Instruction s
Number
Number
Pass lashing:
25
22
Through muzzle brake.
26
22A
Through muzzle brake.
27
B12
Through lunette.
28
C12
Through lunette.
Figure 2-20. Lashings 25 through 28 Installed
2-30
FM 4-20.127/TO 13C7-10-191
BUILDING AND INSTALLING RELEASE STOWAGE PLATFORM
2-9. Build the release stowage platform as shown in Figure 2-21. Install the
release stowage platform as shown in Figure 2-22.
4
4
3
2
3
1
4
3
2
1
1
Form a base with two 34- by 36-inch pieces of honeycomb.
2
Cut and glue two 34- by 24-inch pieces of honeycomb flush with the rear edge of the base
stack.
3
Cut and glue a 34- by 24-inch piece of honeycomb with a 14- by 12-inch cutout on the 34-
inch edge. Place the cutout to the front.
4
Cut and glue two stacks of four 10- by 12-inch pieces of honeycomb. Place them flush
with the rear right and left corners.
5
Allow the stacks to dry after being glued.
Figure 2-21. Release Stowage Platform Built
2-31
FM 4-20.127/TO 13C7-10-191
1
3
2
1
Invert the platform. Place tape on the left and right top sides of the platform.
2
Place the platform over the top of the gun tube, flush with the tube support lumber.
3
Secure the stowage platform to the load with type III nylon cord at convenient
points on the load.
Figure 2-22. Release Stowage Platform Installed
2-32
FM 4-20.127/TO 13C7-10-191
COVERING LOAD
2-10. Cover the load as shown in Figure 2-23.
1
3
2
1
Center two 12- by 18-inch pieces of honeycomb over the recoil tube.
2
Make a 3- by 36-inch cutout in each front corner of a 36- by 96-inch piece of
honeycomb. Tape along the sides of the honeycomb. Set the honeycomb on
the cradle assembly as shown.
3
Tie the 36- by 96-inch piece of honeycomb in place with type III nylon cord.
Figure 2-23. Load Covered
2-33
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