Phase 2 Flashcards
What is the publication for basic operations and equipment
TM 4-48.09
Publication for single point load rigging procedures
TM 4-48.10
Publication for dual point load rigging procedures
TM 4-48.11
When is a sling load used?
- Cargo compartment can’t carry the load
- load exceeds helicopter’s internal load
- ground crew must load or unload cargo
- A/C can’t land at LZ to offload
UH 60 A/L/M ACL
A- 8,000 lbs
LM- 9,000 lbs
CH-47 ACL different weights
17,000 Fore and Aft
26,000 Center
25,000 Fore and Aft Combo
Cargo Hook Releases
UH-60 Pilot and Crew chief can release electronically
CH-47 Pilot and crew chief can release electronically/ crew release manually. Center hook has no release lever for ground crew
What are the 3 units?
- Supported Unit
- Aviation (Supporting) Unit
- Receiving Unit
Supported Unit Responsibilities
Selecting/Controlling PZ
Getting all equipment needed for sling load
Inspecting and rigging load
Aviation Unit Responsibilities
Coordinate with Supported and Receiving unit
Advise supported unit on load limitations
Advise on suitability of PZ/LZs
Provide assistance in returning equipment
Receiving unit responsibilities
Selects/controls the LZ
Derigs load
Returns and rigs back equipment
Sing load classifications (CUPS)
- certified
- unique
- prohibited
- suitable
10k sling set characteristics
(APEX FITTING)
DULL GRAY ALUMINUM
PIN SIZE 1 1/8 INCH DIAM.
(SLING LEG)
1 Leg- 2500 lbs
ROPE COLOR OLIVE DRAB
LENGTH 12 FEET
ROPE DIAMETER 7/8 INCH
(CHAIN)
LINKS 110 - 115
LENGTH 8 FEET
TOTAL WEIGHT 52 LBS
25k sling set characteristics
(APEX FITTING)
GOLD COLORED STEEL
PIN SIZE 1 1/2 INCH DIAM.
(SLING LEG)
1 Sling Leg- 6250 lbs
ROPE COLOR BLACK
LENGTH 12 FEET
ROPE DIAMETER 1 1/4 INCH
(CHAIN)
LINKS 84 - 88
LENGTH 8 FEET
TOTAL WEIGHT 114 LBS
Where is the damage criteria chart found?
TM 4-48.09 Chapter 6
Pressure Sensitive Tape rated capacity
80 lbs per wrap, can be used as breakaway
Type 3 Nylon (550 cord) rated capacity and characteristics
- 550 lbs
- White round and smooth to the touch
- Used as a permanent tie
1/4 inch cotton webbing rated capacity and characteristics
-80 lbs
- white, flat and rough to the touch
-Used as a breakaway tie
3/8 Inch hemp rope rated capacity
3,180 lbs
7/16 inch nylon rope
4,500 lbs
Used as a collar on the cargo net, to secure and rappel
CGU-1/B Rated Capacity
5,000 lbs
Large Suspension clevis capacity
12,500 lbs
Medium/small Suspension clevis capacity
6,250 lbs
5/8 in screw pin clevis capacity
4,420 lbs
ADS Rated Capacity
10,000 lbs
Type IV Connector Link Rated Capacity
12,500 lbs
Criteria for ADS unserviceability
Three or more consecutive loose or broken stitches
Five stitches loose or broken in the same area
What 5 things must all ground crew wear?
- ACH
- Goggles
- Earplugs
- Gloves
- Sleeves rolled down
What are the 3 phases of a sling load operation?
Phase 1: Preparation and rigging
Phase 2: Inspection
Phase 3: Sling Load Operation
Where can 7382s be found?
AASLT HB Appendix C
Appendix I of TM 4-48.09
3 Factors of inflight stability
-Proper weight. Must be 500 lbs
-Proper Drag surface. Nose/down link correct
-Proper Air Speed. Determined by Aviation CDR or pilot in command
How to increase stability
-Reduce airspeed (least preferred)
-Increase weight
-Redistribute weight
-Alter drag surface
-Install drogue chute
What are certified sling loads
Items of equipment that have completed the evaluation and TESTING REQUIRED BY THE ARMY NATICK SOLDIER CENTER (NSC) for sling load verification
What are unique sling loads
Equipment carried on a ONE TIME OR LOW FREQUENCY BASIS.
- high risk load
- must be approved by highest risk approving authority
what is a prohibited load
Equipment that is PROHIBITED from sling loads as determined by each service and are considered safety hazards if carried
What are suitable sling loads
Haven’t been certified but have demonstrated ACCEPTABLE STATIC LIFT AND FLIGHT CHARACTERISTICS.
Load configurations for CH-47 weight
Heavy: center
Medium: fore (front)
Light: aft (rear)
6 advantages of sling load operations
- Allows RAPID MOVEMENT of heavy oversized equipment or emergency items directly to the user
- Ability to BYPASS surface obstacles
- RAPID RELOCATION of supplies and equipment
- Use of multiple flight routes and landing sites to enhance sustainability and security of ground unit
- Establishment of multiple landing sites to support the maneuvering unit requirements
- Greater MOVEMENT FLEXIBLITY for the ground commander to accomplish the tactical mission
7 limitations of sling load ops
- The weight of the load is restricted to the AIRCRAFTS OPERATING CAPABILITY
- Load instability during flight MAY RESTRICT AIRCRAFT SPEED
- Adverse WEATHER AND DARKNESS (low visibility) may limit sling load ops
- ATMOSPHERIC CONDITIONS (pressure, altitude, temperature, and winds) affect the helicopter lift capacity
- Limited NUMBER OF HELICOPTERS are available during sling loads
- Landing site SURFACE CONDITIONS may restrict helicopter ops (brown out/white out)
- Landing site size must be increased during darkness or reduced visibility areas.
Factors that affect helicopter lift capacity
WHA-TF
W ind H umidity A ltitude T emperature F uel
3 units involved in sling load ops
- Supported unit
- Aviation unit
- Receiving unit
5k Cargo Net Characteristics
Weight- 58 lbs
Size- 15 x 15 feet
Load bearing zone 5 feet x 5 feet
Mesh Size - 6 in x 6 in
10k Cargo Net Characteristics
Weight- 96 lbs
Size- 18 x 18 feet
Load bearing zone 6 feet x 6 feet
Mesh Size - 7.5 in x 7.5 in
Cargo Net link count
3 (10k)
5 (25k)
Cargo Net hook sequence
1324 or 1342
A-22 Cargo Bag weight capacities
58 lbs- Empty
2200- Max
A22 Cargo Bag Link count
3 (10k)
5 (25k)
500 gallon fuel drum capacities and link counts
Drum Empty- 275 lbs
One drum - 4200 lbs
Link Count Front (3)
Link Count Rear (55)
M1151 (HMMWV) Link Counts and weights
Empty- 10,300 lbs
Loaded- 12,100 lbs
25 Sling Set Only
Front Link Count (20) Empty and (30) full
Rear Link Count (3)
4 breakaways ,2 front and 2 rear
M149 Water Trailer and Link Counts
Empty- 2,800 lbs
Loaded- 6,320 lbs
Link count front- 75
Link count rear- 90
1 breakaway
M1101 Light Tactical Trailer Weight and Link Count
Empty- 1,240 lbs
Full- 3,400 lbs
10k Link Count Front (20) and rear(3)
25k Link Count Front (17) and rear (5)
What are the three types of lacing ropes you can use with the A-22 cargo bag?
Type III nylon, 3/8 inch hemp rope, 7/16 in nylon rope
What is the diameter of the 10k apex pin portion?
1 1/8 in
What is the primary lift point on the 500 gallon fuel blivet?
5/8 screw pin clevis
What is the maximum weight of a single fuel blivet?
4200 lbs
How can the large clevis be used?
As a field expedient apex
Where can you find DA Form 7382?
TM 4-48.09 Appendix i
What is the rule of thumb when inspecting the stitching on the A-22 cargo bag?
Three or more lose or broken stitches in a row or five or more in a general area
What is the rated capacity of the small screw pin clevis?
8,650 lbs
What classification of sling load has flown for years without incident?
Suitable
What is the link count for the M1151 up armored HMMWV?
Empty: 30 Front/ 3 Rear Full: 20 Front/ 3 Rear
What is the diameter of the pin portion of the 25k Apex?
1 1/2 in
How is the proper drag surface achieved?
Proper link count
What is the rated capacity of 7/16 inch nylon rope?
4,500 lbs
How many breakaways are required on the M149A2 water trailer?
1 cluster breakaway
What can be used as breakaway material?
One wrap of 1/4 in cotton webbing or 2 inch tape
How will the excess lacing ropes be secured on the A-22 cargo bag?
In a bow knot, and excess secured with 2 inch tape
What is the link count for the M149A2 water trailer?
75 front/ 90 rear
What is the average empty weight of a single fuel blivet?
275 lbs
What are the three means of securing the tow pintle on the M1151 up armored HMMWV?
Pintle cotter pin, type III nylon and 2 inch tape
What is the rated capacity of ½ inch tubular nylon?
1,000 lbs
Who can release the cargo hook from inside the UH-60?
Pilot or crew chief
What are the components of the type IV connector link?
Base plate, 2 aluminum rollers and 1 locking plate
What is the maximum weight of four 500 gallon fuel blivets?
16,800 lbs
Which cargo hook on the CH-47 cannot be released manually?
Center
What would you use to clean the metal portions of any sling set?
Wire brush, Emory cloth or Green scrub pad
How would a CH-47 carry three single point of attachment loads that all have different weights?
Heaviest in the middle, next lower in weight in rear and lightest in the front.
What is the rated capacity of the platform clevis?
7,000 lbs
What is the max weight of the M1151 with the fragment 5 kit installed?
13,100 lbs
What is the rated capacity of the 3/8 inch Hemp rope?
3,180 lbs
Where can the damage criteria chart for sling legs be found?
TM 4-48.09 chapter 6
What material is the rope portion on sling legs?
Double braided nylon
How should the grounding rod be placed into the ground?
6 to 12 inches deep at 45 degree angle facing away from the load.