FM 4-20.119 Airdrop of Supplies and Equipment: Rigging 105-Millimeter Howitzers (MAY 2006) - page 6

 

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FM 4-20.119 Airdrop of Supplies and Equipment: Rigging 105-Millimeter Howitzers (MAY 2006) - page 6

 

 

Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
Note. Lashings used below are all 30-foot lashings. Form 30-foot lashings according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
8
6
9
7
10
7
14
12
9
8
10
9
19A
9
7
12
14
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
6
7 and 8A
Through both clevises and over the top of the load. Secure the
lashing on the side.
7
19A
Through clevis 19A and through both lower cutouts in the rear
endboard. Do not secure the lashing.
8
12 and 11A
Through both clevises and over the top of the load. Do not secure
the lashing.
9
9 and 13A
Through clevis 9, through the right upper cutout in the rear endboard
and through clevis 13A. Secure the lashing on the side.
10
14 and 9A
Through clevis 14, through the left lower cutout in the rear endboard,
and through clevis 9A. Secure the lashing on the side.
Figure 5-3. First Group of Ammunition Boxes Lashed to Platform (Continued)
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-9
Chapter 5
STOWING AND LASHING SECOND GROUP OF AMMUNITION
BOXES
5-4. Stow 28 boxes of ammunition on the platform and lash the boxes together as shown in Figure 5-4.
Lash the ammunition to the platform as shown in Figure 5-5.
NOTICE OF EXCEPTION
Exception to FM
4-20.102/MCRP
4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5 is granted to rig ammunition with one layer
of honeycomb.
4
3
5
1
2
6
1 Center a 96- by 36-inch piece of honeycomb against the second endboard.
2 Form four 30-foot lashings according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5. Center two 30-foot lashings 18 inches apart on the honeycomb.
3 Place eight boxes flush over the honeycomb and lashings.
4 Place six boxes over those placed in step 3, leaving an empty space on the left and right
side.
5 Center a 96- by 36-inch piece of honeycomb against the honeycomb placed in step 1.
6 Place two 30-foot lashings on the honeycomb as in step 2.
Figure 5-4. Second Group of Ammunition Boxes Stowed
5-10
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
8
9
7
10
7 Place eight boxes flush over the honeycomb and lashings.
8 Place four boxes on the left side of the stack.
9 Place four boxes on the right side of the stack.
10 Place two 24- by 38-inch pieces of honeycomb in the empty space.
Figure 5-4. Second Group of Ammunition Boxes Stowed (Continued)
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-11
Chapter 5
Notes. 1. All measurements are given in inches.
2. These drawings are not drawn to scale.
14
3 X 3 CUTOUT
11
36
24
15
48
24
24
96
14
15
13
12
11
11 Construct the rear endboard using ¾- by 96- by 15-inch plywood as shown. Place the
endboard against the rear of the boxes.
12 Place two ¾- by 76- by 36-inch pieces of plywood flush over the first stack of boxes.
13 Secure the lashings placed in step 2 over the load.
14 Make the cutouts as shown in two ¾- by 96- by 36-inch pieces of plywood. Place the
plywood over the last row of boxes with the cutout facing the rear.
15 Secure the lashing placed in step 6 on top of the boxes as far to the left as possible.
Figure 5-4. Second Group of Ammunition Boxes Stowed (Continued)
5-12
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
Note. Lashings used below are all 30-foot lashings. Form 30-foot lashings according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
2
1
2
4
16
18
20
21
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
1
16 and 17A
Through both clevises and over the top of the load. Secure the
lashing on the top.
2
18 and 19A
Pre-positioned in Figure 5-3 through clevis 18. Pass the lashing
through the lower cutouts in the second endboard. Secure the
lashing on the right.
3
20 and 22A
Through both clevises and over the top of the load. Secure the
lashing on top and as far to the left as possible.
4
21 and 23A
Through both clevises and through the cutouts in the rear endboard.
Secure the lashing in the rear.
Figure 5-5. Second Group of Ammunition Boxes Lashed to Platform
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-13
Chapter 5
BUILDING AND PLACING HONEYCOMB STACKS
5-5. Build the honeycomb stacks for the howitzers as shown in Figure 5-6. Place the stacks as shown in
Figure 5-7.
Notes. 1. All measurements are given in inches.
2. These drawings are not drawn to scale.
30
TOP VIEW
20
6
6
Stack
Pieces
Width
Length
Material
Instructions
Number
(inches)
(inches)
1 and 4
7
30
20
Honeycomb
Glue and form a stack.
3
30
20
Honeycomb
Center a cut 6 inches wide and 6 inches
deep in a 30-inch side. Glue these
pieces flush on the stack.
2
30
20
¾-inch
Make cuts as above and place on
plywood
honeycomb.
3
12
8
¾-inch
Glue flush along uncut 30-inch edge and
plywood
centered.
1
12
8
Honeycomb
Glue flush over plywood placed above.
Figure 5-6. Honeycomb Stacks Prepared
5-14
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
Notes. 1. All measurements are given in inches.
2. These drawings are not drawn to scale.
LAYERS 3 THROUGH 10 OF
PLYWOOD AND HONEYCOMB
8 ½
27 ½
25
8 ½
21 ½
25
TOP LAYER
Stack
Pieces
Width
Length
Material
Instructions
Number
(inches)
(inches)
2
2
72
36
Honeycomb
Glue to form a base.
1
25
36
¾-inch
Make cutouts as shown and center on
plywood
base.
3
25
36
Honeycomb
Make cutouts as shown and place flush
on plywood.
1
25
36
¾-inch
Make cutouts as shown and place flush
plywood
on honeycomb.
3
25
36
Honeycomb
Make cutouts as shown and place flush
on plywood.
1
25
30
Honeycomb
Make cutouts as shown and place flush
on top.
Figure 5-6. Honeycomb Stacks Prepared (Continued)
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-15
Chapter 5
Notes. 1. All measurements are given in inches.
2. These drawings are not drawn to scale.
PLYWOOD
(3/4 X 30 X 6)
PLYWOOD
(3/4 X 30 X 6)
PLYWOOD
(3/4 X 21 X 6)
Stack
Pieces
Width
Length
Material
Instructions
Number
(inches)
(inches)
3
9
30
16
Honeycomb
Glue to form a base
1
30
10
Honeycomb
Place honeycomb even with one edge of
base.
1
30
6
¾-inch
Place plywood flush along outside edge
plywood
of honeycomb placed above.
1
30
6
¾-inch
Place plywood flush on base next to
plywood
honeycomb placed above.
1
21
6
¾-inch
Center plywood on the lower piece of
plywood
plywood.
Figure 5-6. Honeycomb Stacks Prepared (Continued)
5-16
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
Notes. 1. All measurements are given in inches.
2. These drawings are not drawn to scale.
LAYERS 4 THROUGH 10 OF
PLYWOOD AND HONEYCOMB
8 ½
27 ½
25
8 ½
21 ½
25
TOP LAYER
Stack
Pieces
Width
Length
Material
Instructions
Number
(inches)
(inches)
5
3
72
36
Honeycomb
Glue to form a base.
1
25
36
¾-inch
Make cutouts as shown and center on
plywood
base.
3
25
36
Honeycomb
Make cutouts as shown and place flush
on plywood.
1
25
36
¾-inch
Make cutouts as shown and place flush
plywood
on honeycomb.
2
25
36
Honeycomb
Make cutouts as shown and place flush
on plywood.
1
25
30
Honeycomb
Make cutouts as shown and place flush
on top.
Figure 5-6. Honeycomb Stacks Prepared (Continued)
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-17
Chapter 5
Notes. 1. All measurements are given in inches.
2. These drawings are not drawn to scale.
PLYWOOD
(3/4 X 30 X 6)
PLYWOOD
(3/4 X 21 X 6)
PLYWOOD
(3/4 X 30 X 6)
Stack
Pieces
Width
Length
Material
Instructions
Number
(inches)
(inches)
6
2
30
16
Honeycomb
Glue to form a base
1
30
10
Honeycomb
Place honeycomb even with one edge of
base.
1
30
6
¾-inch
Place plywood flush along outside edge
plywood
of honeycomb placed above.
1
30
6
¾-inch
Place plywood flush on base next to
plywood
honeycomb placed above.
1
21
6
¾-inch
Center plywood on the lower piece of
plywood
plywood.
Figure 5-6. Honeycomb Stacks Prepared (Continued)
5-18
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
Notes. 1. This drawing is not drawn to scale.
2. All dimensions are given in inches.
STACK
STACK
1
2
STACK
STACK
STACK
STACK
6
4
5
3
Stack Number
Position of Stack on Platform
Note. Stack locations are approximate. Exact placement will vary because
of differences in individual guns. Be sure that the stacks rest solidly on the
platform or on the plywood decking.
1
Place on the plywood decking with the right front corner 28 inches from the
right front corner of the plywood and the left front corner of the stack 4 inches
from the front edge of the plywood.
2
Center the front edge against stack 1.
3
Align on the rear section of plywood decking on a central axis with stacks 1
and 2.
4
Place at the rear of the platform with the right rear corner of the stack 35
inches from the right rail. Let the left side of the stack overhang the rear edge
of the platform from the point at which the extraction bracket meets the rear
edge of the platform.
5
Center in front of the stack 4.
6
Align on the third ammunition stack on a central axis with stacks 4 and 5.
Figure 5-7. Honeycomb Stacks Placed
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-19
Chapter 5
PREPARING HOWITZERS
5-6. Prepare both howitzers as shown in Figures 3-9 through 3-17 and in Figure 5-8. Further prepare the
front howitzer as shown in Figure 5-9 and the rear howitzer as shown in Figure 5-10.
Notes. 1. This drawing is not drawn to scale.
2. All dimensions are given in inches.
1
LUMBER
2 X 4 X 6 3/4
3 ¾
2
2
LUMBER
PLYWOOD
2 X 6 X 18
¾ X 3 X 5 1/2
1 Tilt the left sight assembly forward.
2 Construct the breech operating handle support as shown.
Figure 5-8. Both Howitzers Prepared
5-20
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
4
2
3
5
6
6
4
3 Place the breech operating handle support over the rails as shown with the upright piece
under the operating handle. Place the breech in the down position with the handle resting
on the support.
4 Pass a 15-foot lashing over the operating handle around the ends of the wood support and
around the rails. Secure the lashing under and between the rails.
5 Pass a 15-foot lashing around the breech block assembly and under the operating handle.
Pad the lashing around the bottom of the breech the sides of the rails and the right side of
the breech with a 43- by 3-inch piece of ½-inch felt. Secure the lashing on the right.
6 Safety the lashing installed in step 5 in place with a length of type III nylon cord. Pass the
cord around the lashing on the left, cross the cord under the lashing and pass both free
ends around the bottom part of the breech assembly. Cross the ends of the cord under
the lashing on the right and tie it over the lashing.
Figure 5-8. Both Howitzers Prepared (Continued)
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-21
Chapter 5
1
1 Install a medium suspension clevis onto each of the brackets on the underside of the gun
carriage.
Figure 5-9. Front Howitzer Prepared
5-22
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
1
3
2
1
3
1 Tie the collimator boxes for both howitzers together or make a 36- by 36-inch box for two
collimators and secure the gun tube with ½-inch tubular nylon webbing.
2 Form a 30-foot lashing according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5. Pass a 30-foot lashing over the collimator and around both trails.
Secure the lashing on the top.
3 Bevel the left side of the muzzle support block 45 degrees.
Figure 5-10. Rear Howitzer Prepared
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-23
Chapter 5
PLACING HOWITZER ON HONEYCOMB STACKS, LASHING
HOWITZER, AND INSTALLING PROTECTIVE HONEYCOMB
5-7. Place the howitzers on the platform as shown in Figure 5-11. Lash the howitzers together and install
protective honeycomb as shown in Figure 5-12.
1
2
3
1 Position the rear howitzer on stacks 4, 5, and 6. The breech assembly must overhang the
rear edge of the platform 17 inches.
2 Position the front howitzer on stacks 1, 2, and 3. The breech assembly must overhang the
front edge of the platform 17 inches.
Notes. 1. Do not allow the howitzers to overhang either side of the platform.
2. Fuzes packed in 21 metal ammunition boxes can be rigged at this time. Place them on
the third ammunition stack and secure them with the binding lashings. Lash the boxes
together horizontally.
3 Unfasten the rear binding lashing on the third stack of boxes and pass it through the holes
in the spade assembly of the rear howitzer. Secure the lashing on top of the plywood
decking or fuze boxes, if rigged on this load.
Figure 5-11. Howitzers Placed on Honeycomb Stacks
5-24
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
1
1 Lash the inside trails of the howitzers together with two 15-foot lashings as shown.
Figure 5-12. Howitzers Lashed Together and Protective Honeycomb Installed
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-25
Chapter 5
5
3
4
2
6
2 Bend a 24- by 96-inch piece of honeycomb over the rear howitzer cylinders. Tape the
sides of the honeycomb and tie the honeycomb in place with a length of type III nylon cord
tied to the wheel hubs.
3 Place a 24- by 96-inch piece of honeycomb lengthwise over the front howitzer. Tape the
sides of the honeycomb and tie it to convenient points on the howitzer and type III nylon
cord.
4 Bend a 36- by 96-inch piece of honeycomb lengthwise over the gun tube and spade
assembly of the front howitzer. Tape the sides of the honeycomb and tie it to the howitzer
with type III nylon cord.
5 Tie two 96- by 36-inch pieces of honeycomb to the left side of the load, covering the gun
tube of the rear howitzer and the trail of the front howitzer. Tape the sides of the
honeycomb and tie the honeycomb to the howitzer trails with type III nylon cord.
6 Bend a piece of honeycomb cut to fit over the sight assembly of the front howitzer. Tape
the sides of the honeycomb and tie it in place with type III nylon cord.
Figure 5-12. Howitzers Lashed Together and Protective Honeycomb Installed (Continued)
5-26
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
LASHING HOWITZERS
5-8. Lash the howitzers to the right side of the platform as shown in Figure 5-13. Lash the howitzers to
the left side of the platform as shown in Figure 5-14.
Note. Do not tighten the lashings until all are installed. Tighten the lashings in pairs on
opposite sides.
2
1
3
4
4
2
11
8
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
1
2
Around wheel hub.
2
4
Around trail, near side.
3
8
Through medium clevis installed under front howitzer, far side.
4
11
Around wheel hub.
Figure 5-13. Lashings on Right Side Installed
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-27
Chapter 5
5
6
8
7
19
17
15
13
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
5
13
Around trail of rear howitzer, near side, and through cutout of
endboard.
6
15
Through lunette of front howitzer.
7
17
Around trail on far side of front howitzer.
*8
19
Through lunette on rear howitzer.
* 30-foot lashing.
Figure 5-13. Lashings on Right Side Installed (Continued)
5-28
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
9
11
12
10
27
25
24
22
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
9
22
Around saddle of rear howitzer.
10
24
Around saddle of rear howitzer.
11
25
Through lunette, front howitzer.
12
27
Around wheel hub, rear howitzer.
Figure 5-13. Lashings on Right Side Installed (Continued)
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-29
Chapter 5
4
2
3
1
2A
4A
6A
12A
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
1
2A
Around saddle of front howitzer.
2
4A
Around wheel hub of front howitzer.
3
6A
Through lunette of rear howitzer
*4
12A
Around saddle of front howitzer
* 30-foot lashing.
Figure 5-14. Lashings on Left Side Installed
5-30
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
8
9
6
10
5
7
14A
15A
16A
18A
20A
21A
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
5
14A
Around trail on far side of rear howitzer.
*6
15A
Around trail and up through hole in firing platform, rear howitzer.
*7
16A
Through medium clevis installed under front howitzer, near side.
*8
18A
Around trail on far side of front howitzer.
9
20A
Through lunette, rear howitzer.
10
21A
Around trail on far side of rear howitzer.
* 30-foot lashing.
Figure 5-14. Lashings on Left Side Installed (Continued)
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-31
Chapter 5
14
11
13
12
24A
25A
27A
29A
Lashing
Tiedown
Instructions
Number
Clevis
Number
Pass lashing:
11
24A
Around wheel hub.
*12
25A
Around trail on far side of rear howitzer.
13
27A
Around saddle and under elevating wheel shaft.
14
29A
Around wheel hub.
* 30-foot lashing.
Figure 5-14. Lashings on Left Side Installed (Continued)
5-32
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
INSTALLING SUSPENSION SLINGS AND COVERING LOAD
5-9. Install the suspension slings according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-
010/TO 13C7-1-5 and as shown in Figure 5-15. Cover the load as shown in Figure 5-15.
5
8
1
7
3
6
4
2
1
Place a 10- by 16-foot piece of cotton duck cloth over the load. Tie the cover in place with
type III nylon cord.
2
Pass a 3-foot (4-loop), type XXVI nylon webbing sling through a 5 ½-inch two-point link.
Place both ends of the sling in the bell portion of a large suspension clevis. Bolt the clevis
to the right rear suspension link. Repeat for left side.
3
Attach a 16-foot (4-loop), type XXVI nylon webbing sling to each of the 5 ½-inch two-point
links installed in step 2.
4
Attach a 16-foot (4-loop), type XXVI nylon webbing sling to each front suspension link with
a large suspension clevis.
5
Extend the slings and install the deadman’s tie 6 to 8 inches above the highest point of the
load according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-
5.
6
Safety the right rear two-point link to the lunette of the front howitzer with type III nylon
cord. Safety the left rear two-point link to the nearest howitzer trail (left side not shown)
7
Safety the right rear sling to the lunette of the front howitzer at a point where the sling
passes the lunette. Use type III nylon cord.
8
Safety the right front suspension sling to the nearest howitzer trail with type III nylon cord.
Safety the left front suspension slings to the wheel hub of the front howitzer (left side not
shown).
Figure 5-15. Suspension Slings and Load Cover Installed
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-33
Chapter 5
PREPARING STOWAGE PLATFORM AND STOWING CARGO
PARACHUTES
5-10. Prepare the parachute stowage platform as shown in Figure 5-16. Prepare the left parachute stowage
platform support as shown in Figure 5-17. Prepare the right parachute stowage platform support as shown
in Figure 5-18. Assemble the stowage platform as shown in Figure 5-19. Stow five G-11 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 5-20.
Notes. 1. This drawing is not drawn to scale.
2. All dimensions are given in inches.
2 ½
2 ½
LUMBER
(2 X 6 X 48)
1
PLYWOOD
2
(¾ X 48 X 96)
24
2-INCH HOLE
1 Prepare the parachute stowage platform as shown.
2 Tie the lumber to the plywood through each of the holes with a length of type III nylon cord.
Figure 5-16. Parachute Stowage Platform Prepared
5-34
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
36
Notes. 1. This drawing is not drawn to scale.
2. All dimensions are given in inches.
TOP LAYER
16
8
36
12
LAYERS 14
THROUGH 20
20
8
12
36
LAYERS 8
THROUGH 13
24
12
12
24
LAYERS 2
12
THROUGH 7
36
BASE LAYER
24
LAYERS 2
12
12
THROUGH 7
12
12
Pieces
Width
Length
Material
Instructions
(inches)
(inches)
1
24
36
Honeycomb
Make cutout on base as shown.
6
12
12
Honeycomb
Place flush on narrow end of base. Do not glue
at this time
6
24
12
Honeycomb
Place flush on wide end of base. Do not glue at
this time.
6
24
36
Honeycomb
Make cutout as shown and glue flush on stack.
7
20
36
Honeycomb
Make cutout as shown and glue flush along 36-
inch side.
1
16
36
Honeycomb
Make cutout as shown and glue flush along
angled sides.
Figure 5-17. Left Parachute Platform Support Constructed
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-35
Chapter 5
36
Notes.
1. This drawing is not drawn to scale.
2. All dimensions are given in inches.
TOP LAYER
16
8
36
12
LAYERS 14
THROUGH 20
20
8
12
36
LAYERS 8
THROUGH 13
24
12
12
LAYERS 2
12
THROUGH 7
12
36
BASE LAYER
24
24
LAYERS 2
12
12
THROUGH 7
12
Pieces
Width
Length
Material
Instructions
(inches)
(inches)
1
24
36
Honeycomb
Make cutout on base as shown.
6
12
12
Honeycomb
Place flush on narrow end of base. Do not glue
at this time
6
24
12
Honeycomb
Place flush on wide end of base. Do not glue at
this time.
13
24
36
Honeycomb
Make cutout as shown and glue flush on stack.
1
20
36
Honeycomb
Make cutout as shown and glue flush along 36-
inch side.
Figure 5-18. Right Parachute Platform Support Constructed
5-36
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
2
1
1 Place the base layers of the left and right parachute stowage platform supports with the
wide ends to the rear, 4 inches from the rear edge of the platform and 90 inches apart.
Glue the upper layers to the supports to the base.
2 Fit the parachute stowage platform to the honeycomb supports.
Note. At this time trim the supports and stack 5 as necessary to allow for the lashings and for firm
support of the parachute stowage platform. The supports may be moved as necessary.
Figure 5-19. Parachute Stowage Platform Assembled and Placed
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-37
Chapter 5
5
3
7
6
1
26
23
1 Lash the parachute stowage platform to clevis 26 through the center and rear holes on the
right side.
2 Lash the parachute stowage platform to clevis 28A through the center and rear holes on
the left side (not shown).
3 Lash the parachute stowage platform to clevis 23 through the center and front holes on the
right side.
4 Lash the parachute stowage platform to clevis 26A through the center and front holes on
the left side (not shown).
5 Prepare and install five G-11 cargo parachutes.
6 Tie the front parachute restrain strap to the first bushing on each rear suspension link.
7 Tie the rear parachute restraint strap to the first bushing after the suspension link on each
rail.
Figure 5-20. Cargo Parachutes Stowed
5-38
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
INSTALLING EXTRACTION SYSTEM
5-11. Install the EFTC extraction system on the 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 5-21. If applicable install the EPJS according
to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
4
2
1
1 Install the EFTC mounting brackets to the rear set of holes on the left platform side rail.
2 Install the actuator according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-
010/TO 13C7-1-5.
3 Install the latch assembly and latch assembly adapter to the extraction bracket according
to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5 (not shown).
4 Install a 20-foot cable according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
5 Install a 12-foot (2-loop), type XXVI nylon webbing deployment line. S-fold the slack and
tie the folds with type I, ¼-inch cotton webbing (not shown).
Figure 5-21. EFTC Installed
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-39
Chapter 5
INSTALLING RELEASE SYSTEM
5-12. Prepare and install an M-2 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 5-22.
2
1
3
1 Center the M-2 release on the honeycomb in front of the parachutes.
2 Secure the release to convenient points on the load with type III nylon cord.
3 S-fold and tie slack in the suspension slings with type I, ¼-inch cotton webbing.
Figure 5-22. M-2 Release Installed
5-40
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
INSTALLING PROVISIONS FOR EMERGENCY RESTRAINTS
5-13. Install provisions for emergency restraint on the front of the platform according to FM
4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5.
PLACING EXTRACTION PARACHUTES
5-14. Select the extraction parachute and extraction line needed using the extraction line requirements
table in FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5. Rig the extraction
line in an extraction line bag according to TM 10-1670-286-20/TO13C5-2-41. Place the extraction
parachute and extraction line on the load for installation in the aircraft.
MARK RIGGED LOAD
5-15. Marked 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 5-23. Complete Shipper’s Declaration for Dangerous Goods
according to AFMAN 24-204(I)/TM 38-250. If the load varies from the one shown, the weight, height,
CB, tip-off curve, and parachute requirements must be recomputed.
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-41
Chapter 5
CAUTION
Make the final rigger inspection required by 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: Load shown
22,660 pounds
Maximum load allowed
25,000 pounds
Height
98 inches
Width
108 inches
Overall Length
274 inches
Overhang: Front
17 inches
Rear (EFTC)
18 inches
Rear (EPJS)
30 inches
Center of Balance (from front edge of platform)
110 inches
Figure 5-23. Two M119 Howitzers Rigged for Low-Velocity Airdrop on a Type V Platform
5-42
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
EQUIPMENT REQUIRED
5-16. Use the equipment listed in Table 5-1 to rig the load shown.
Table 5-1. Equipment Required for Rigging Two M119 Howitzers for Low-Velocity Airdrop
on a Type V Platform
National Stock Number
Item
Quantity
8040-00-273-8713
Adhesive, paste, 1-gallon
As required
Clevis, suspension:
5
4030-00-678-8562
3/4-inch (medium) emergency restraint
2
4030-00-090-5354
1-inch (large)
5
8305-00-184-2034
Cloth, cotton duck, 60-inch
As required
4020-00-246-0688
Cord, nylon, type III
As required
Coupling, airdrop, extraction force transfer with
1
1670-00-434-5787
20-foot cable
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
1670-01-183-2678
Leaf, extraction line
2
1670-01-064-4452
Line, drogue, 60-foot (1-loop) type XXVI nylon webbing
1
Line, extraction, type XXVI nylon webbing:
1670-01-062-6313
60-foot (3-loop)
1
Or
1670-01-107-7651
140-foot (3-loop)
1
Link assembly, two-point:
1670-01-493-6418
3 3/4-inch
21
1670-01-493-6420
5 1/2 -inch
2
Lumber:
5510-00-220-6146
2- by 4-inch
As required
5510-00-220-6196
2- by 6-inch
As required
5510-00-220-6246
2- by 8-inch
As required
Nail, steel wire, common:
5315-00-010-4659
8d
As required
5315-00-164-5121
20d
As required
1670-00-753-3928
Pad, energy-dissipating, honeycomb
31 sheets
Parachute:
1670-01-016-7841
Cargo, G-11
5
1670-00-040-8135
Cargo, extraction, 28-foot
1
1670-01-063-3715
Drogue, 15-foot
1
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-43
Chapter 5
Table 5-1. Equipment Required for Rigging Two M119 Howitzers for Low-Velocity Airdrop
on a Type V Platform (Continued)
National Stock Number
Item
Quantity
Platform, airdrop, type V, 20-foot
1670-01-353-8425
Bracket assembly, coupling
1
1670-01-353-8424
Bracket assembly, extraction
1
1670-01-162-2372
Clevis assembly
58
1670-01-247-2389
Suspension link
4
Tandem link
2
Plywood,
5530-00-129-7777
½-inch
As required
5530-00-128-4981
¾-inch
As required
1670-01-097-8817
Release, cargo parachute, M-2
1
Sling, cargo airdrop:
For deployment line:
1670-01-062-6303
12-foot (2-loop), type XXVI nylon webbing
1
For lifting:
1670-01-063-7760
11-foot (2-loop), type XXVI nylon webbing
3
For riser extension:
1670-01-062-6302
20-foot (2-loop), type XXVI nylon webbing
20
For suspension:
1670-01-062-6301
3-foot (2-loop), type XXVI nylon webbing
2
1670-01-063-7761
16-foot (2-loop), type XXVI nylon webbing
4
1670-00-040-8219
Strap, parachute release, multicut
2
7515-00-266-5016
Tape, adhesive, 2-in
As required
1670-00-937-0271
Tie-down assembly, 15-ft
100
1670-01-483-8259
Tow release mechanism (H-block for 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
8305-00-263-3591
Type VIII webbing
As required
5-44
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
SECTION II-RIGGING HOWITZERS WITH SIXTY-THREE BOXES OF
AMMUNITION
DESCRIPTION OF LOAD
5-17. Two M119, 105-millimeter howitzers are rigged on a 20-foot type V platform with an accompanying
load of 63 boxes of ammunition and 21 cans of fuzes (when required). This load requires four G-11 cargo
parachutes.
PREPARING PLATFORM
5-18. Prepare a 20-foot, type V airdrop platform as described below.
Inspecting platform. Inspect, or assemble and inspect, the platform as outlined in TM 10-1670-
268-20&P/TO 13C7-52-22.
Note. If the platform must be assembled, install the suspension bracket assemblies when
assembling the platform. See Figure 5-24 for the location of the suspension bracket assemblies.
Installing suspension links. Install a suspension link on the of each rail according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5, and as shown in Figure 5-
24
Installing tandem links. Install a tandem link on the front of each rail according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5, and as shown in Figure 5-
24.
Installing and numbering clevises. Bolt and number 54 clevis assemblies according to FM 4-
20.102/MCRP 4-11.3J/NAVSEA SS400-AB-MMO-010/TO 13C7-1-5, and as shown in Figure 5-
24.
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-45
Chapter 5
Note. Measurements given in the chapter are from the front edge of the platform, NOT from the
front edge of the nose bumper.
CLEVISES
28A THROUGH 1 A
LEFT
REAR
FRONT
RIGHT
CLEVISES
26 THROUGH 1
Step:
1. Inspect, or assemble and inspect a 20-foot Type V platform as outlined in TM 10-1670-
268-20&P/TO 13C7-52-22.
2. Install a suspension bracket assembly to each platform side rail using holes 6, 7, and 8.
3. Install a tandem link to each platform side rail using holes 1, 2, and 3.
4. Install a suspension bracket assembly to each platform side rail using holes 33, 34, and
35.
5. Install a clevis on bushings 1 (tripled), 2, 3, and 4 of each of the front tandem links.
6. Install a clevis on bushings 1, 2, 3, and 4 of each of the right front suspension bracket
assemblies.
7. Install a clevis on bushings 1 (tripled), 2, 3, and 4 of each of the left front suspension
bracket assemblies.
8. Install a clevis on bushing 2 of each second suspension bracket assembly.
9. Starting at the front of right platform side rail, install clevises on the bushing bolted on
holes 9, 11, 13, 15, 18, 20, 21, 23, 24, 26, 27, 30, 37, 38, 39, and 40.
10. Starting at the front of left platform side rail, install clevises on the bushing bolted on holes
11, 12, 16, 18, 19, 20, 21, 22, 23, 24, 26, 27, 30, 31, 38, 39, and 40.
11. Starting at the front of the platform number the clevises bolted to the right side from 1
through 26 and 1A through 28A on the left side.
12. Label the tie-down rings according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5.
Figure 5-24. Platform Prepared
5-46
FM 4-20.119/TO 13C7-10-31
10 May 2006
Rigging Two M119 Howitzers for Low-Velocity Airdrop on Type V Platform
STOWING AND LASHING FIRST GROUP OF AMMUNITION BOXES
5-19. Stow 33 boxes of ammunition on the platform and lash the ammunition boxes together as shown in
Figure 5-25. Lash the ammunition to platform as shown in Figure 5-26.
NOTICE OF EXCEPTION
Exception to FM
4-20.102/MCRP
4-11.3J/NAVSEA SS400-AB-
MMO-010/TO 13C7-1-5 is granted to rig ammunition with one layer
of honeycomb.
2
1
3
1 Place honeycomb, lashings, and 33 boxes of ammunition on the platform as shown in
Figure 5-2, steps 1 through 6.
2 Cover the boxes with two layers of ¾-inch plywood. Alternate two 74- by 17-inch and two
74- by 45- inch pieces as shown.
3 Secure the four pre-positioned lashings on the side of the boxes as shown.
Figure 5-25. First Group of Ammunition Boxes Stowed
10 May 2006
FM 4-20.119/TO 13C7-10-31
5-47
Chapter 5
3
2
1
8
5
3
1 Form three 30-foot lashings according to FM 4-20.102/MCRP 4-11.3J/NAVSEA SS400-
AB-MMO-010/TO 13C7-1-5. Pass a 30-foot lashing through clevises 3 and 3A and over
the top of the boxes. Secure the lashing on the side.
2 Pass a 30-foot lashing through clevises 5 and 5A and over the top of the boxes. Secure
the lashing on the side.
3 Pass a 30-foot lashing through clevises 8 and 9A and over the top of the boxes. Secure
the lashing on the side.
Figure 5-26. First Group of Ammunition Boxes Lashed to Platform
5-48
FM 4-20.119/TO 13C7-10-31
10 May 2006

 

 

 

 

 

 

 

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