Главная Manuals FM 4-20.105-2 Airdrop of Supplies and Equipment: Dual Row Airdrop Systems, Volume II (August 2006)
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*FM 4-20.105-2/TO 13C7-1-51 VOL II
Field Manual
Headquarters
Department of the Army
No. 4-20.105-2
Department of the Air Force
Technical Order
Washington, DC, 29 August 2006
No. 13C7-1-51 Volume II
Airdrop of Supplies and Equipment:
Dual Row Airdrop Systems
Volume II
Contents
Page
PREFACE
iii
Scope
iii
Chapter 9
RIGGING 105-MILLIMETER (MM) AMMUNITION MASS SUPPLY LOAD
ON DUAL ROW AIRDROP SYSTEM PLATFORM
9-1
Description of Load
9-1
Preparing Platform
9-1
Building Honeycomb Stacks
9-3
Positioning Honeycomb and Securing First Ammunition Stack
9-4
Constructing and Placing Endboards
9-8
Installing Lashings on First Ammunition Stack
9-10
Positioning and Securing Second Ammunition Stack
9-16
Installing Lashings on Second Ammunition Stack
9-17
Installing the Attitude Control System (ACS) and Suspension Slings
9-21
Installing Outrigger Assemblies
9-27
Stowing Cargo Parachutes
9-27
Stowing Deployment Parachute
9-28
Installing Parachute Release System
9-29
Installing Mast Release Knives
9-30
Marking Rigged Load
9-31
Equipment Required
9-31
Chapter 10
RIGGING M-GATOR WITH ACCOMPANYING LOAD ON DUAL ROW
AIRDROP SYSTEM PLATFORM
10-1
Description of Load
10-1
Preparing Platform
10-1
Distribution Restriction: Approved for public release; distribution is unlimited.
*This publication supersedes FM 4-20.105/TO 13C7-1-51 dated 1 April 2002.
i
Preface
Building and Positioning the Honeycomb Stacks
10-3
Preparing the M-Gator
10-6
Positioning the M-Gator
10-9
Lashing the M-Gator
10-10
Building M-Gator Box
10-13
Positioning M-Gator Box
10-16
Lashing M-Gator Box
10-17
Constructing Endboards for Ammunition Stack 1
10-20
Positioning First Ammunition Stack
10-21
Lashing Endboard of First Ammunition Stack
10-23
Constructing Endboards for Second Ammunition Stack
10-25
Positioning Second Ammunition Stack
10-26
Lashing Endboard of Second Ammunition Stack
10-28
Positioning the Attitude Control System (ACS) and Installing Suspension
Slings
10-30
Installing Outrigger Assemblies
10-35
Stowing Cargo Parachutes
10-35
Stowing Deployment Parachute
10-36
Installing Parachute Release System
10-37
Installing Mast Release Knives
10-38
Marking Rigged Load
10-39
Equipment Required
10-39
Chapter 11
RIGGING THE MASS SUPPLY LOAD ON DUAL ROW AIRDROP
SYSTEM PLATFORM
11-1
Description of Load
11-1
Preparing Platform
11-1
Building and Positioning the Mass Supply Boxes
11-3
Installing Lashing on Mass Supply Boxes
11-11
Installing the Attitude Control System (ACS) and Suspension Slings
11-19
Installing Outrigger Assemblies
11-25
Stowing Cargo Parachutes
11-25
Stowing Deployment Parachute
11-26
Installing Parachute Release System
11-27
Installing Mast Release Knives
11-28
Marking Rigged Load
11-29
Equipment Required
11-29
Appendix A
VERIFYING THE CENTER OF BALANCE ON A DRAS PLATFORM LOAD . A-1
GLOSSARY
Glossary-A-1
REFERENCES
References-1
ii
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Preface
SCOPE
The purpose of this manual is to provide the latest approved procedures for rigging Dual Row Airdrop System
(DRAS) platforms. This manual is written for use by the parachute rigger.
The procedures contained in this manual are typical and serve as the standard from which all DRAS platform
rigging is derived. Due to the uniqueness of some equipment and items, the procedures in a specific rigging
chapter may be different from those in chapters 1 and 2. When procedures are different, those in the
specific chapter will be followed. When an item of equipment is specified to be used for which its
minimum or maximum capacity is exceeded, a notice of exception will be printed at the beginning of each
paragraph in each rigging chapter where the exception is authorized.
Chapters 1 and 2 contain specific limitations and general information about the rigging of DRAS airdrop
platform loads for low-velocity airdrop from the C-17 (Globemaster) aircraft, shows and tells how to prepare,
attach, and safety tie some of the components and systems used in the specific rigging chapters of FM 4
20.105-2/TO 13C7-1-51 VOL II.
USER INFORMATION
This publication applies to the Active Army, the Army National Guard/Army National Guard of the United
States, and United States Army Reserve, unless otherwise stated.
The proponent of this publication is the United States Training and Doctrine Command (TRADOC). You are
encouraged to report any errors or omissions and to suggest ways of making this a better manual.
Army personnel, send your comments on DA Form 2028 directly to:
Director
Aerial Delivery and Field Services Department
USA Quartermaster Center and School
710 Adams Avenue
Fort Lee, Virginia 23801-1502
Air Force personnel, send your reports on AFTO Form 22 through your respective command Weapons and
Tactics to:
Headquarters
Air Mobility Command (AMC/A39T)
402 Scott Drive, Unit 3AI
Scott AFB, Illinois 62225-5302
Air Force personnel in Special Operations Command, send your reports on AFTO Form 22. HQ AMC/A39T
will consolidate and forward changes to:
Director
Aerial Delivery and Field Services Department
USA Quartermaster Center and School
710 Adams Avenue
Fort Lee, Virginia 23801-1502
Also send an information copy of AFTO Form 22 to:
542d MSUG/GBMUDE
380 Richard Ray Blvd
STE 104
Robins AFB, Georgia 31098-1640
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
iii
Chapter 9
Rigging 105-Millimeter (MM) Ammunition Mass Supply
Load on Dual Row Airdrop System Platform
DESCRIPTION OF LOAD
9-1. The mass supply load (Figure 9-1) is rigged on an 18-foot dual row platform. The rigged weight is
12,980 pounds. The load is rigged with 96 containers of 105-mm ammunition. Each individual 105-mm
ammunition container weighs approximately 108 pounds. All 105-mm ammunition packaged as shown and
listed in FM 4-20.153/MCRP 4-11.3B/TO 13C7-18-41, as certified for airdrop, may be rigged using these
procedures. Each load is 98 ½ inches high, 94 inches wide, 216 inches long, and the center of balance is 91
inches from the front edge of the platform. The load is rigged with two to four G-11D cargo parachutes.
The M-1 release is used with this load. The minimum allowable weight is 7,500 pounds and the maximum
allowable weight is 14,500 pounds.
PREPARING PLATFORM
9-2. Inspect, or assemble and inspect, a dual row airdrop platform with outrigger assemblies and
outrigger platform support weldments according to TM 10-1670-268-20&P/TO 13C7-52-22 and as shown
in Figure 9-2.
Figure 9-1. 105-mm Ammunition Mass Supply Load Rigged on DRAS Platform
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-1
Chapter 9
CLEVISES
37A THROUGH 1 A
LEFT
REAR
FRONT
RIGHT
CLEVISES
37 THROUGH 1
Step:
1. Starting at the front of each platform side rail, install clevises on the bushings bolted on
holes 1, 2 (tripled), 3, 4, 5, 6, 7 (tripled), 8, 9 (tripled), 10 (tripled), 11, 13, 14 (tripled), 15,
16, 17, 18 (tripled on the right side and doubled on the left side), 20, 21, 22, 23 (tripled), 24
(tripled), 25, 26, 27, 28, 29, and 30 (tripled).
2. Starting at the front of each platform side rail, number the clevises 1 through 37 on the
right side and 1A through 37A on the left side.
3. Label the tie-down rings according to Figure 2-2.
Figure 9-2. Platform Prepared
9-2
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
BUILDING HONEYCOMB STACKS
9-3. Build the honeycomb stacks for the load as shown in Figure 9-3.
Note. All measurements are given in inches.
3
36
36
76
12
13 ½
24
13 ½
12
REAR
CENTER
FRONT
Stack
Pieces
Width
Length
Material
Instructions
Number
(inches)
(inches)
1 and 2
3
76
12
Honeycomb
Glue flush together to form a front
stack.
3
76
24
Honeycomb
Glue flush together to form a center
stack and center 13 ½ inches from
the front stack.
3
76
12
Honeycomb
Glue flush together to form a rear
stack and center 13 ½ inches from
the center stack.
2
76
36
Honeycomb
Glue one piece flush with the front
edge of the front stack. Glue one
piece flush with the rear edge of the
rear stack. Glue both pieces to the
center stack leaving a 3-inch gap in
the center.
Figure 9-3. Honeycomb Stacks Prepared
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-3
Chapter 9
POSITIONING HONEYCOMB AND SECURING FIRST AMMUNITION
STACK
9-4. Position the honeycomb and secure the first stack of 105-mm ammunition as shown in Figure 9-4.
Note. All measurements are given in inches.
2
1
FRONT
11
1 Position the first honeycomb stack 11 inches from the front edge of the platform and
centered.
2 Form two 30-foot lashings as shown in Figure 2-14. Center them over the honeycomb as
shown.
Figure 9-4. Honeycomb Positioned and Ammunition Secured
9-4
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
CAUTION
Only ammunition listed in FM 4-20.153/MCRP 4-11.3B/TO 13C7-18
41 may be airdropped. Hazardous material must be packaged,
marked, and labeled as required by AFMAN 24-204 (I)/TM 38-250.
3
3 Position six 105-mm ammunition containers on top of the honeycomb and centered on the
pre-positioned lashings on the front of the stack.
Note. Ensure the rear edge does not cover the 3-inch channel in the honeycomb stack.
Figure 9-4. Honeycomb Positioned and Ammunition Secured (Continued)
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-5
Chapter 9
10
11
FRONT
9
8
7
6
5
4
FRONT
4
Place a 36- by 76-inch piece of honeycomb on top of the positioned ammunition
containers.
5
Position six 105-mm ammunition containers on top of the 36- by 76-inch piece of
honeycomb.
6
Place a 36- by 76-inch piece of honeycomb on top of the positioned ammunition
containers.
7
Position six 105-mm ammunition containers on top of the 36- by 76-inch piece of
honeycomb.
8
Place a 36- by 76-inch piece of honeycomb on top of the positioned ammunition
containers.
9
Position six 105-mm ammunition containers on top of the 36- by 76-inch piece of
honeycomb.
10
Secure the pre-positioned 30-foot lashing around the four layers of 105-mm ammunition
boxes and secure it on top with two D-rings and a load binder.
11
Place a 36- by 76-inch piece of honeycomb in the 3-inch channel and against the rear of
the front layers of 105-mm ammunition containers.
Figure 9-4. Honeycomb Positioned and Ammunition Secured (Continued)
9-6
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
15
14
13
FRONT
12
12
Position six 105-mm ammunition containers on top and centered on the pre-positioned
lashings on the rear stack of honeycomb stack 1.
13
Repeat steps 4 through 9 for the rear stack of honeycomb stack 1.
14
Secure the pre-positioned 30-foot lashing around the four layers of 105-mm ammunition
boxes and secure it on top with two D-rings and a load binder.
15 Place a 6- by 76-inch piece of honeycomb in between the two stacks on top of the 36- by
76-inch piece of honeycomb.
Figure 9-4. Honeycomb Positioned and Ammunition Secured (Continued)
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-7
Chapter 9
CONSTRUCTING AND PLACING ENDBOARDS
9-5. Construct four endboards and place them on the load as shown in Figure 9-5.
Notes. 1. This drawing is not to scale.
2. All dimensions are in inches.
3. All cutouts are 2 inches by 3 inches.
2
5
2
3
10
PLYWOOD
(¾ X 48 X 80)
10
1
10
5
1 Cut four pieces of ¾- by 48- by 80-inch plywood to make four endboards.
2 Make eight 2- by 3-inch cutouts in each endboard as shown. Pad all cutouts with cellulose
wadding and tape in place.
Figure 9-5. Endboards Constructed and Placed
9-8
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
3
4
4
FRONT
5
3
Position one endboard at the front and rear of stack 1.
4
Construct a 30-foot lashing and route it horizontally around the cell and through each of
the third from the top cutouts.
5 Secure the lashings with two D-rings and a load binder on the right side centered between
the two stacks of ammunition containers.
Figure 9-5. Endboards Constructed and Placed (Continued)
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-9
Chapter 9
INSTALLING LASHINGS ON FIRST AMMUNITION STACK
9-6. Lash the load to the platform according to Chapter 2, Volume I of this manual and as shown in
Figure 9-6.
2
1
8
FRONT
5
Lashing
Tiedown
Instructions
Number
Clevis
Number
1
5 and 5A
Route a 15-foot lashing through clevis 5 and through its own D-ring.
Route the lashing through the front right bottom cutout of the
endboard. Route a 15-foot lashing through clevis 5A and through its
own D-ring. Route the lashing through the front left bottom cutout of
the endboard. Secure centered on the endboard with two D-rings
and a load binder.
2
8 and 8A
Route a 15-foot lashing through clevis 8 and through its own D-ring.
Route the lashing through the front right, third from the top, cutout of
the endboard. Route a 15-foot lashing through clevis 8A and through
its own D-ring. Route the lashing through the front left, third from the
top, cutout of the endboard. Secure centered on the endboard with
two D-rings and a load binder.
Figure 9-6. Lashings Installed for First Stack
9-10
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
4
3
11
10
FRONT
Lashing
Tiedown
Instructions
Number
Clevis
Number
3
10 and 10A
Route a 15-foot lashing through clevis 10 and through its own D-
ring. Route the lashing through the front right, second from the top,
cutout of the endboard. Route a 15-foot lashing through clevis 10A
and through its own D-ring. Route the lashing through the front left,
second from the top, cutout of the endboard. Secure centered on the
endboard with two D-rings and a load binder.
4
11 and 11A
Route a 15-foot lashing through clevis 11 and through its own D-
ring. Route the lashing through the front right top cutout of the
endboard. Route a 15-foot lashing through clevis 11A and through
its own D-ring. Route the lashing through the front left top cutout of
the endboard. Secure centered on the endboard with two D-rings
and a load binder.
Figure 9-6. Lashings Installed for First Stack (Continued)
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-11
Chapter 9
6
5
15
16
REAR
Lashing
Tiedown
Instructions
Number
Clevis
Number
5
16 and 16A
Route a 15-foot lashing through clevis 16 and through its own D-
ring. Route the lashing through the rear right bottom cutout of the
endboard. Route a 15-foot lashing through clevis16A and through its
own D-ring. Route the lashing through the rear left bottom cutout of
the endboard. Secure close to the left side of the endboard with two
D-rings and a load binder.
6
15 and 15A
Route a 15-foot lashing through clevis 15 and through its own D-
ring. Route the lashing through the rear right, third from the top
cutout of the endboard. Route a 15-foot lashing through clevis 15A
and through its own D-ring. Route the lashing through the rear left,
third from the top, cutout of the endboard. Secure close to the left
side of the endboard with two D-rings and a load binder.
Figure 9-6. Lashings Installed for First Stack (Continued)
9-12
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
8
7
12
14
REAR
Lashing
Tiedown
Instructions
Number
Clevis
Number
7
14 and 14A
Route a 15-foot lashing through clevis 14 and through its own D-
ring. Route the lashing through the rear right, second from the top,
cutout of the endboard. Route a 15-foot lashing through clevis14A
and through its own D-ring. Route the lashing through the rear left,
second from the top, cutout of the endboard. Secure close to the left
side of the endboard with two D-rings and a load binder.
8
12 and 12A
Route a 15-foot lashing through clevis 12 and through its own D-
ring. Route the lashing through the rear right top cutout of the
endboard. Route a 15-foot lashing through clevis 12A and through
its own D-ring. Route the lashing through the rear left top cutout of
the endboard. Secure close to the left side of the endboard with two
D-rings and a load binder.
Figure 9-6. Lashings Installed for First Stack (Continued)
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-13
Chapter 9
10
9
2A
19
FRONT
2
Lashing
Tiedown
Instructions
Number
Clevis
Number
9
2 and 19
Route a 15-foot lashing through clevis 2 and through its own D-ring.
Route the lashing to the front top left cutout of the endboard. Route
a 15-foot lashing through clevis 19 and through its own D-ring.
Route the lashing to the rear top left endboard cutout. Secure the
two lashings together, centered on the left side, with two D-rings and
a load binder.
10
2A and 19A
Route a 15-foot lashing through clevis 2A and through its own
D-ring. Route the lashing to the front top right cutout of the
endboard. Route a 15-foot lashing through clevis 19A and through
its own D-ring. Route the lashing to the rear top right endboard
cutout. Secure the two lashings together, centered on the right side,
with two D-rings and a load binder.
Figure 9-6. Lashings Installed for First Stack (Continued)
9-14
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
12
11
14
13
FRONT
18
13
9
6
Lashing
Tiedown
Instructions
Number
Clevis
Number
11
6 and 6A
Route a 15-foot lashing through each clevis and through its own
D-ring. Pass both lashings over the ammunition boxes and secure
them on top of the load with two D-rings and a load binder.
12
9 and 9A
Route a 15-foot lashing through each clevis and through its own
D-ring. Pass both lashings over the ammunition boxes and secure
them on top of the load with two D-rings and a load binder.
13
13 and 13A
Route a 15-foot lashing through each clevis and through its own
D-ring. Pass both lashings over the ammunition boxes and secure
them on top of the load with two D-rings and a load binder.
14
18 and 18A
Route a 15-foot lashing through each clevis and through its own
D-ring. Pass both lashings over the ammunition boxes and secure
them on top of the load with two D-rings and a load binder.
Figure 9-6. Lashings Installed for First Stack (Continued)
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-15
Chapter 9
POSITIONING AND SECURING SECOND AMMUNITION STACK
9-7. Position the second honeycomb stack, lashings, ammunition boxes and endboards as shown in
Figure 9-7.
3
2
REAR
4
1
1
Center the second honeycomb stack 8 inches from the rear endboard of the first
ammunition stack.
2
Repeat steps 2 through 15 as shown in Figure 9-4 to place and secure the second
ammunition stack.
3
Position one endboard at the front and rear of the second ammunition stack.
4 Construct a 30-foot lashing and route it horizontally around the second ammunition stack
and through each of the third from the top cutouts. Secure the lashing with two-D-rings
and a load binder on the right side centered between the two stacks of the second
ammunition stack.
Figure 9-7. Honeycomb, Lashings, Ammunition and Endboards Placed for Second Stack
9-16
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
INSTALLING LASHINGS ON SECOND AMMUNITION STACK
9-8. Lash the second ammunition stack to the platform as shown in Figure 9-8.
4
3
2
REAR
1
27
26
24
22
Lashing
Tiedown
Instructions
Number
Clevis
Number
1
22 and 22A
Route a 15-foot lashing through clevis 22 and through its own D-
ring. Route the lashing through the front right and left bottom cutouts
of the endboard. Secure the lashing with a D-ring and load binder to
clevis 22A.
2
24 and 24A
Route a 15-foot lashing through clevis 24 and through its own D-
ring. Route the lashing through the front right and left, third from the
top, cutouts of the endboard. Secure the lashing with a D-ring and
load binder to clevis 24A.
3
26 and 26A
Route a 15-foot lashing through each clevis and through its own D-
ring. Route the lashing on clevis 26 through the front right and left,
second from the top, cutout of the endboard. Secure both lashings
together on the left side of the load with two D-rings and a load
binder.
4
27 and 27A
Route a 15-foot lashing through each clevis and through its own D-
ring. Route the lashing on clevis 27 through the front right and left
top, cutout of the endboard. Secure both lashings together on the
left side of the load with two D-rings and a load binder.
Figure 9-8. Lashings Installed for Second Stack
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-17
Chapter 9
8
7
6
5
28
30
32
REAR
35
Lashing
Tiedown
Instructions
Number
Clevis
Number
5
35 and 35A
Route a 15-foot lashing through each clevis and through its own D-
ring. Route the lashings through the rear right and left bottom
cutouts of the endboard. Secure both lashings centered at the rear
with two D-rings and a load binder.
6
32 and 32A
Route a 15-foot lashing through each clevis and through its own D-
ring. Route the lashings through the rear right and left, third from the
top, cutouts of the endboard. Secure both lashings centered at the
rear with two D-rings and a load binder.
7
30 and 30A
Route a 15-foot lashing through each clevis and through its own D-
ring. Route the lashings through the rear right and left, second from
the top, cutouts of the endboard. Secure both lashings centered at
the rear with two D-rings and a load binder.
8
28 and 28A
Route a 15-foot lashing through each clevis and through its own D-
ring. Route the lashings through the rear right and left top cutouts of
the endboard. Secure both lashings centered at the rear with two D-
rings and a load binder.
Figure 9-8. Lashings Installed for Second Stack (Continued)
9-18
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
9
10
37A
20
REAR
37
Lashing
Tiedown
Instructions
Number
Clevis
Number
9
20 and 37
Route a 15-foot lashing through clevis 20 and through its own D-
ring. Route the lashing through the front top left cutout of the front
endboard. Route a15-foot lashing through clevis 37 and through its
own D-ring. Route the lashing to the rear top left cutout of the rear
endboard. Secure the two lashings together centered on the left
side of the load with two D-rings and a load binder.
10
20A and 37A
Route a 15-foot lashing through clevis 20A and through its own D-
ring. Route the lashing through the front top right cutout of the front
endboard. Route a 15-foot lashing through clevis 37A and through
its own D-ring. Route the lashing to the rear top right cutout of the
rear endboard. Secure the two lashings centered on the right side
of the load with two D-rings and a load binder.
Figure 9-8. Lashings Installed for Second Stack (Continued)
29 August 2006
FM 4-20.105-2/TO 13C7-1-51 VOL II
9-19
Chapter 9
14
13
12
11
REAR
33
29
25
23
Lashing
Tiedown
Instructions
Number
Clevis
Number
11
23 and 23A
Route a 15-foot lashing through each clevis and through its own D-
ring. Pass both lashings over the ammunition boxes and secure
them on top of the load with two D-rings and a load binder.
12
25 and 25A
Route a 15-foot lashing through each clevis and through its own D-
ring. Pass both lashings over the ammunition boxes and secure
them on top of the load with two D-rings and a load binder.
13
29 and 29A
Route a 15-foot lashing through each clevis and through its own D-
ring. Pass both lashings over the ammunition boxes and secure
them on top of the load with two D-rings and a load binder.
14
33 and 33A
Route a 15-foot lashing through each clevis and through its own D-
ring. Pass both lashings over the ammunition boxes and secure
them on top of the load with two D-rings and a load binder.
Figure 9-8. Lashings Installed for Second Stack (Continued)
9-20
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
INSTALLING THE ATTITUDE CONTROL SYSTEM (ACS) AND
SUSPENSION SLINGS
9-9. Construct, inspect and position the ACS according to Chapter 2 of this manual and as shown in
Figure 9-9. Install the suspension slings and secure the ACS according to Chapter 2, Volume I and as
shown in Figure 9-10.
1
2
REAR
FRONT
1 Position the front ACS centered on top of the front ammunition stacks. The ACS 4- by 4
inch piece of lumber must face the rear of the platform.
2 Position the rear ACS centered on top of the rear ammunition stacks. The ACS 4- by 4
inch piece of lumber must face the front of the platform.
Figure 9-9. ACS Positioned
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FM 4-20.105-2/TO 13C7-1-51 VOL II
9-21
Chapter 9
2
3
1
FRONT
7
4
1 Install a 3-foot (4-loop), type XXVI nylon sling to clevises 4 and 7. Connect an 11-foot (4
loop), type XXVI nylon sling to the center of the sling with a 3 ¾-inch, two-point link.
2 Route the sling through the clevis on the ACS from front to rear. Pad and tape the 11-foot
(4 loop), type XXVI nylon sling with felt from a point 6 inches below the clevis to a point 6
inches above the ACS.
3 Safety tie the 3 ¾-inch, two-point link to the 4- by 4-inch piece of lumber using one-turn
single, type III nylon cord. Ensure the tie is tight.
4 Install a 3-foot (4-loop), type XXVI nylon sling to the other end of the 11-foot (4 loop),
type XXVI nylon sling with a 3 ¾-inch, two-point link. Pad and tape the link with felt (not
shown).
5 Repeat steps 1 through 4 on the left side of the load using clevises 4A and 7A.
Figure 9-10. Suspension Slings Installed and Secured
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FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
8
6
FRONT
7
17
3
1
6 Route a 15-foot lashing from clevis 1 through the right front ACS clevis from outside to
inside, rear to front and around the ACS 4- by 4-inch piece of lumber and back to clevis 1.
7 Repeat above step using clevis 3.
8 Route a 15-foot lashing from clevis 17 through the right front ACS clevis from outside to
inside, front to rear and around the ACS 4- by 4-inch piece of lumber and back to clevis
17.
9 Repeat steps 6 through 8 on the left side of the load using clevises 1A, 3A, and 17A (not
shown).
10 Ensure that the ACS is straight and centered on the load. Load binders on both sides of
the load must be closed at the same time in the following sequence: 1 and 1A, 3 and 3A
and 17 and 17A.
Figure 9-10. Suspension Slings Installed and Secured (Continued)
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FM 4-20.105-2/TO 13C7-1-51 VOL II
9-23
Chapter 9
12
13
11
REAR
34
31
11 Install a 3-foot (4-loop), type XXVI nylon sling to clevises 31 and 34. Connect an 11-foot
(4-loop), type XXVI nylon sling to the center of the sling with a 3 ¾-inch, two-point link.
12 Route the sling through the clevis on the ACS from rear to front. Pad and tape the 11-foot
(4 loop), type XXVI nylon sling with felt from a point 6 inches below the clevis to a point 6
inches above the ACS.
13 Safety tie the 3 ¾-inch, two-point link to the 4- by 4-inch piece of lumber using one-turn
single, type III nylon cord. Ensure the tie is tight.
14 Install a 3-foot (4-loop), type XXVI nylon sling to the other end of the 11-foot (4 loop),
type XXVI nylon sling with a 3 ¾-inch, two-point link. Pad and tape the link with felt (not
shown).
15 Repeat steps 11 through 14 on the left side of the load using clevises 31A and 34A.
Figure 9-10. Suspension Slings Installed and Secured (Continued)
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FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
17
16
REAR
36
21
16 Route a 15-foot lashing from clevis 21 through the right rear ACS clevis from outside to
inside, rear to front and around the ACS 4- by 4-inch piece of lumber and back to clevis
21.
17 Route a 15-foot lashing from clevis 36 through the right rear ACS clevis from outside to
inside, front to rear and around the ACS 4- by 4-inch piece of lumber and back to clevis
36.
18 Repeat steps 16 through 17 on the left side of the load using clevises 21A and 36A (not
shown).
19 Ensure that the ACS is straight and centered on the load. Load binders on both sides of
the load must be closed at the same time in the following sequence: 21 and 21A, and 36
and 36A.
Figure 9-10. Suspension Slings Installed and Secured (Continued)
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FM 4-20.105-2/TO 13C7-1-51 VOL II
9-25
Chapter 9
22
21
20
REAR
20 Extend the slings upward and remove all slack.
21 Tie a length of type III nylon cord around the 11-foot sling and the ACS sling.
22 Tie a length of type III nylon cord around the 11-foot (4 loop), type XXVI nylon sling, behind
all lashings, and around the 4- by 4-inch piece of lumber of the ACS and tie the ends
together.
23 Repeat steps 20 through 22 on all slings (not shown).
Figure 9-10. Suspension Slings Installed and Secured (Continued)
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FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
INSTALLING OUTRIGGER ASSEMBLIES
9-10. Assemble, install and safety tie the mast and foot assemblies on the DRAS platform according to TM
10-1670-268-20&P/TO 13C7-52-22 and as shown in Chapter 2, Volume I, Figures 2-42 through 2-44 and
Figure 2-45, steps 1, 2, and 3.
STOWING CARGO PARACHUTES
9-11. Stow and restrain three G-11D cargo parachutes on top of the stowage platform as shown in Chapter
2, Volume I and Figure 9-11.
Note. If the load varies from the one shown the parachute requirements must be recomputed.
2
3
1
3A
8
3
FRONT
1 Cut and position a 30- by 76-inch piece of honeycomb on top of the front ammunition
stack, and to the front of the ACS. Secure the honeycomb to a convenient point on the
load with type III nylon cord.
2 Prepare and install three G-11D cargo parachutes on top of the honeycomb as shown
above and in Chapter 2, Volume I.
3 Restrain the parachutes as shown in Chapter 2, Volume I using type VIII nylon webbing
tied to clevises 3 and 3A, and 8 and 8A.
Figure 9-11. Cargo Parachute Stowed
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FM 4-20.105-2/TO 13C7-1-51 VOL II
9-27
Chapter 9
STOWING DEPLOYMENT PARACHUTE
9-12. Prepare, stow and install the deployment parachute according to Chapter 2, Section V, Volume I and
as shown in Figure 9-12.
1
FRONT
1 Prepare, stow and install the deployment parachute according to Chapter 2, Section V,
Volume I and as shown above.
Figure 9-12. Deployment Parachute Installed
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FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
INSTALLING PARACHUTE RELEASE SYSTEM
9-13. Build an M-1 parachute release stack, prepare and install an M-1 parachute release system according
to Chapter 2, Section VI, Volume I and as shown in Figure 9-13.
1
2
4
5
FRONT
1
Cut two 18- by 18-inch pieces of honeycomb and glue together. Tape the edges and
position and center the honeycomb to the front of the rear ACS. Secure the honeycomb to
a convenient point on the load using type III nylon cord. Center the M-1 release on the
honeycomb stack.
2
Attach the riser extensions and suspension slings to the M-1 release.
Note. Remove the buffers from the ends of the suspension slings that attach to the M-1 release.
3
Group the riser extensions together and tie with type I, ¼-inch cotton webbing. Make three
ties (not shown). S-fold the slack in the front and rear suspension slings and secure with
type I, ¼-inch cotton webbing.
4
Secure the release to convenient points on the load with type III nylon cord.
5 Secure the arming wire and lanyard to a parachute carrying handle with three alternating
half hitches and a knot in the running end.
Figure 9-13. M-1 Cargo Parachute Release Installed
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FM 4-20.105-2/TO 13C7-1-51 VOL II
9-29
Chapter 9
INSTALLING MAST RELEASE KNIVES
9-14. Install the mast release knives as shown in Chapter 2, Volume I, Figure 2-45, steps 4 through 10 and
as shown in Figure 9-14.
1
2
RIGHT
LEFT
1 The length of the left and right ½-inch tubular nylon webbing from the base of the guillotine
knives to the lower suspension links of the release is 95 inches as shown in Figure 2-45,
steps 5 and 6.
2 Tie a length of type III nylon cord from the upper guillotine knife to the left top lashing on
the rear endboard of the second ammunition stack that measures 72 inches. Repeat for
the lower guillotine knife attaching the type III nylon cord to the right top lashing on the rear
endboard of the second ammunition stack as shown in Figure 2-45, steps 9 and 10. Fold
the slack in the type III nylon cord and tape with 2-inch masking tape.
Note. All measurements are from knot to knot.
Figure 9-14. Mast Release Knives Installed
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FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
MARKING RIGGED LOAD
9-15. Mark the rigged load according to Chapter 2, Section IX, Volume I and as shown in Figure 9-15. A
Shipper’s Declaration for Dangerous Goods is required. If weight varies from the one shown, the weight,
height, CB and parachute requirements must be recomputed.
EQUIPMENT REQUIRED
9-16. The equipment required to rig this load is listed in Table 9-1.
CAUTION
Make the final rigger inspection required by Chapter 2, Section IX,
Volume I before the load leaves the rigging site.
RIGGED LOAD DATA
Weight: Load shown
12,980 pounds
Maximum load allowed
14,500 pounds
Height
98.5 inches
Width
94 inches
Overall Length
216 inches
Overhang: Front
0 inches
Rear
0 inches
Center of Balance: (from front edge of platform):
91 inches
Figure 9-15. 105-mm Ammunition Mass Supply Load Rigged on DRAS Platform
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9-31
Chapter 9
Table 9-1. Equipment Required for Rigging 105-mm Ammunition Mass Supply Load on
DRAS Platform
National Stock Number
Item
Quantity
8040-00-273-8713
Adhesive paste, 1-gallon
As required
4020-00-240-2146
Cord, nylon, type III, 550-pound
As required
Clevis,
4030-00-090-5354
Large
5
4030-00-678-8562
Medium
4
1670-00-360-0328
Cover, clevis, large
4
8135-00-664-6958
Cushioning material, packaging, cellulose wadding
As required
8305-00-191-1101
Felt, ½-inch
As required
1670-01-493-6418
Link assembly, two-point, 3 ¾-inch
9
Lumber:
5510-00-220-6146
2- by 4-inch
As required
5510-00-220-6148
2- by 6-inch
As required
5510-00-220-6274
4- by 4-inch
As required
5530-00-618-8073
Plywood, ¾-inch
2 sheets
5315-00-010-4659
Nail, steel wire, common, 8d
As required
1670-00-753-3928
Pad, energy dissipating, honeycomb
21 sheets
1670-01-487-5461
Static line assembly release away
1
Parachute:
Cargo:
1670-01-016-7841
G-11D
4
1670-00-040-8135
Cargo extraction: 28-foot (deployment parachute)
1
Platform, dual row, 18-foot
1670-01-485-1654
Rail, DRAS
2
1670-01-486-1342
Roller Pad, DRAS
4
1670-01-486-1656
Panel Assembly, Main
9
1670-01-162-2372
Clevis assembly
92
1670-01-097-8816
Release, cargo parachute, M-1
1
Sling, cargo airdrop
For suspension:
1670-01-062-6310
11-foot (4-loop), type XXVI nylon webbing
4
1670-01-062-6306
3-foot (4-loop), type XXVI nylon webbing
8
For deployment:
1670-01-062-6306
3-foot (4-loop), type XXVI nylon webbing
1
For riser extension:
1670-01-062-6313
60-foot (3-loop), type XXVI nylon webbing
4
For ACS:
1670-01-063-7761
16-foot (2-loop), type XXVI nylon webbing
2
9-32
FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging 105-Millimeter (MM) Ammunition Mass Supply Load on Dual Row Airdrop System Platform
Table 9-1. Equipment Required for Rigging 105-mm Ammunition Mass Supply Load on
DRAS Platform (Continued)
National Stock Number
Item
Quantity
1670-00-040-8219
Strap, parachute release, multicut
2
1670-00-937-0271
Knife release, cargo (guillotine)
6
1670-01-487-5464
Outrigger assembly
1
7510-00-266-5016
Tape, adhesive, 2-inch
As required
1670-00-937-0271
Tie-down assembly, 15-foot
76
1670-00-725-1437
Tie-down, cargo, aircraft, (CGU-1B)
5
Webbing:
8305-00-268-2411
Cotton, ¼-inch, type I
As required
Nylon:
8305-00-082-5752
Tubular, ½-inch
As required
8305-00-263-3591
Type VIII
As required
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FM 4-20.105-2/TO 13C7-1-51 VOL II
9-33
Chapter 10
Rigging M-Gator with Accompanying Load on Dual Row
Airdrop System Platform
DESCRIPTION OF LOAD
10-1. This load consists of one John Deere Diesel, which has been named the Military Utility Vehicle (M-
Gator) (Figure 10-1). The M-Gator is rigged with an accompanying load of thirty-six 105-mm ammunition
boxes and airdrop related items. The M-Gator and accompanying load are rigged on a DRAS platform with
two G-11D cargo parachutes. The total rigged weight is 8,650 pounds, 97 inches high, 94 inches wide, and
has a center of balance of 90 inches.
PREPARING PLATFORM
10-2. Inspect, or assemble and inspect, a dual row airdrop platform with outrigger assemblies and
outrigger platform support weldments according to TM 10-1670-268-20&P/TO 13C7-52-22 and as shown
in Figure 10-2.
Figure 10-1. Military Utility Vehicle (M-Gator)
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FM 4-20.105-2/TO 13C7-1-51 VOL II
10-1
Chapter 10
CLEVISES
29A THROUGH 1 A
LEFT
REAR
FRONT
RIGHT
CLEVISES
29 THROUGH 1
Steps:
1. Starting at the front of each platform side rail, install clevises on the bushings bolted on
holes 1, 2, 3, 4, 5 (tripled), 6 (tripled), 7, 8, 9, 10, 13, 14, 15, 16, 17, 18, 19, 24 (tripled), 25,
26 (tripled), 27, 28 (tripled), 29, and 30.
2. Starting at the front of each platform side rail, number the clevises 1 through 29 on the
right side and 1A through 29A on the left side.
3. Label the tie-down rings according to Figure 2-2.
Figure 10-2. Platform Prepared
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FM 4-20.105-2/TO 13C7-1-51 VOL II
29 August 2006
Rigging M-Gator with Accompanying Load on Dual Row Airdrop System Platform
BUILDING AND POSITIONING THE HONEYCOMB STACKS
10-3. Build the honeycomb stack for the load as shown in Figure 10-3. Position the honeycomb stack as
shown in Figure 10-4.
Stack
Pieces
Width
Length
Material
Instructions
Number
(inches)
(inches)
1 and 3
2
76
24
Honeycomb
Glue the pieces together to form
stack.
Figure 10-3. Honeycomb Stacks Prepared
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FM 4-20.105-2/TO 13C7-1-51 VOL II
10-3
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