Sling Load Inspector Certification Course
What is the suspension web sequence for the A-22 CARGO BAG?
1, 2, 3, 4 clockwise or counterclockwise
What is the lifting leg sequence for CARGO NETS when rigging the load?
1, 3, 4, 2
What is the sling leg numbering sequence for a load with six sling legs?
1, 3, 5, 6, 4, 2
The nine flight and landing aircraft formations are
1. Heavy Left 2. Heavy Right 3. Vee 4. Echelon Left 5. Echelon Right 6. Staggered Trail Left 7. Staggered Trail Right 8. Trail 9. Diamond
The obstacle ratio for daytime operations when determining usable and unusable area.
10:1
Cargo Hook Reach Pendant (Short) Rated Capacity
11,000 lbs
3x Medium Clevis Rated Capacity
11,250 lbs
Total Number of Chain Links on a 10,000 lb Sling Set
110-115
Weight of the 25,000 lb Sling Set
114 lbs
Sling Leg Length of the 10,000 lb Sling Set
12 ft
Sling Leg Length on a 25,000 lb Sling Set
12 ft
Static electricity can jump at up to what distance?
12 inches
What is the maximum authorized length variation of the sling legs on a three (3) leg single-point load?
12 inches
2x 25,000 lb (25K) Sling Leg Rated Capacity
12,500 lbs
Large Clevis Rated Capacity
12,500 lbs
Type IV Connector Link Rated Capacity
12,500 lbs
5,000 lb Cargo Net Volume Capacity
125 cubic ft
Diameter of Landing Point Size 6
125 meters
The obstacle ratio for nighttime operations when determining usable and unusable area
14:1
5,000 lb Cargo Net Size
15' x 15'
4x Medium Clevis Rated Capacity
15,000 lbs
2x Large Clevis Rated Capacity
15,750 lbs
Diameter of Landing Point Size 7
150 meters
Do not hold the discharge wand within how many inches of the metal hook end?
16 inches
CH-47D Fore/Aft Cargo Hook Capacity
17,000 lbs
10,000 lb Cargo Net Size
18' x 18'
3x 25,000 lb (25K) Sling Leg Rated Capacity
18,750 lbs
In what order of the sequence is this sling leg?
2
Sling Leg F
2
UH-1H/UH-1N Flight Time
2 hours, 20 minutes
UH-60A/UH-60L/M Flight Time
2 hours, 20 minutes
CH-47D Flight Time
2 hours, 30 minutes
The signalman is positioned where if the aircraft emergency landing procedure is to the LEFT?
2 o'clock
Daytime distance between aircraft in flight
2 to 3 rotor disks
What type of tape is used during rigging of typical sling load operations?
2" Pressure Sensitive Tape
Breakaway ties are made of either
2" pressure sensitive tape or 1/4" cotton webbing
A-22 Cargo Bag Maximum Capacity
2,200 lbs
1x 10,000 lb (10K) Sling Leg Rated Capacity
2,500 lbs
3x Large Clevis Rated Capacity
23,625 lbs
How deep should the grounding rod be inserted into sandy or loose soil?
24 inches
Diameter of Landing Point Size 1
25 meters
CH-47D Tandem Cargo Hook Capacity
25,000 lbs
Cargo Hook Reach Pendant (Long) Rated Capacity
25,000 lbs
Two-Point Link Assembly Rated Capacity
25,000 lbs
CH-47D Center Cargo Hook Capacity
26,000 lbs
In what order of the sequence is this sling leg?
3
Sling Leg B
3
Nighttime distance between aircraft in flight
3 to 5 rotor disks
4x Large Clevis Rated Capacity
31,500 lbs
Diameter of Landing Point Size 2
35 meters
10,000 lb Cargo Net Volume Capacity
380 cubic ft
In what order of the sequence is this sling leg?
4
Sling Leg E
4
UH-1H Cargo Hook Capacity
4,000 lbs
Wind direction within this many degrees left or right of land heading is considered to be a head wind.
45 degrees
In what order of the sequence is this sling leg?
5
Sling Leg C
5
Aircraft will not be able to land in a tail wind that exceeds
5 knots
5,000 lb Cargo Net Load Zone Area
5 square ft
2x 10,000 lb (10K) Sling Leg Rated Capacity
5,000 lbs
5,000 lb Cargo Net Rated Capacity
5,000 lbs
CGU-1/B Rated Capacity
5,000 lbs
Silver Load Binder Rated Capacity
5,000 lbs
UH-1N Cargo Hook Capacity
5,000 lbs
If the ground at a landing site can support a ______________ vehicle, then a ____________ helicopter is supported.
5-ton; Size 1-5
If the ground at a landing site can support a ______________ vehicle, then a ____________ helicopter is supported.
5-ton; Size 3-5
Diameter of Landing Point Size 3
50 meters
A-22 Cargo Bag Minimum Capacity
500 lbs
Minimum Capacity for Any Sling Load
500 lbs
Weight of the 10,000 lb sling set
52 lbs
Type III (3) Nylon Cord Rated Capacity
550 lbs
5,000 lb Cargo Net Weight
58 lbs
A-22 Cargo Bag Weight
58 lbs
In what order of the sequence is this sling leg?
6
Sling Leg D
6
10,000 lb Cargo Net Load Zone Area
6 square ft
5,000 lb Cargo Net Mesh Width
6"
1x 25,000 lb (25K) Sling Leg Rated Capacity
6,250 lbs
Medium Clevis Rated Capacity
6,250 lbs
Small Clevis Rated Capacity
6,250 lbs
How deep should the grounding rod be inserted into firm ground?
6-8 inches
What is the distance between lights in the Inverted "Y" light formation?
7 meters from base to directional 14 meters from end-to-end in the left stem 14 meters from base to left stem
2x Medium Clevis Rated Capacity
7,500 lbs
2x Small Clevis Rated Capacity
7,500 lbs
3x 10,000 lb (10K) Sling Leg Rated Capacity
7,500 lbs
10,000 lb Cargo Net Mesh Width
7.5"
10,000 lb Sling Set Diameter/Width
7/8"
Chain Length on a 10,000 lb Sling Set
8 ft
Chain Length on a 25,000 lb Sling Set
8 ft
UH-60A Cargo Hook Capacity
8,000 lbs
Type I (1), 1/4-Inch Cotton Webbing Rated Capacity
80 lbs
Diameter of Landing Point Size 4
80 meters
Total Number of Chain Links on a 25,000 lb Sling Set
84-88
Aircraft will not be able to land in a cross wind that exceeds
9 knots
UH-60L/M Cargo Hook Capacity
9,000 lbs
10,000 lb Cargo Net Weight
96 lbs
10,000 lb Cargo Net Color
Black
Sling Leg Color on a 25,000 lb Sling Set
Black
Component 1
Bolt and Lock Nut
The grabhook assembly should be inspected for the presence of what components?
Bolt and locknut; snap ring
Rigging a 5,000 lb (5K) cargo net with a grab hook link count of three (3) creates a unique load.
False
The number 2 aircraft is to the LEFT of the number 1 aircraft in a HEAVY LEFT formation
False
TM 4-48.09
Multiservice Helicopter Sling Load: Basic Operations and Equipment
TM 4-48.11
Multiservice Helicopter Sling Load: Dual-Point Load Rigging Procedures
TM 4-48.10
Multiservice Helicopter Sling Load: Single-Point Load Rigging Procedures
WHATF: "W" Factor
Wind
Is the cargo hook manual release on the UH-60 reachable by the ground crew?
Yes
Rule of the Apex: Is the 10,000 lb (10K) APEX SPACER compatible with the CH-47D?
Yes
Rule of the Apex: Is the 10,000 lb (10K) APEX SPACER compatible with the UH-60A/L/M?
Yes
Rule of the Apex: Is the TYPEXXVI Nylon Webbing Apex (in donut or basket hitch configuration) compatible with the UH-1H/N?
Yes
Rule of the Apex: Is the 25,000 lb (25K) APEX SPACER compatible with the CH-47D?
Yes; use of the spacer on this aircraft is OPTIONAL.
Component 7
Yoke
TEAM: "M" Factor
Mission
In what order of the sequence is this sling leg?
1
Sling Leg A
1
25,000 lb Sling Set Diameter/Width
1 1/4"
If the ground at a landing site can support a ______________ vehicle, then a ____________ helicopter is supported.
1 1/4-ton; Size 1 or Size 2
How does an inspector simplify the DA Form 7382?
1. Write A L S on the outer and upper righthand side of the form. 2. Circle blocks 3 and 5. 3. Carry over the blocks with X's in the rigger's column to the inspector's column. 4. Fill out all of block 12 except for the signature.
Each sling leg has a rated capacity of how much of the total capacity of the set?
1/4
What is the distance between lights in the "T" light formation?
10 meters each from base to directional and between points on the left stem
The signalman is positioned where if the aircraft emergency landing procedure is to the RIGHT?
10 o'clock
10,000 lb Cargo Net Rated Capacity
10,000 lbs
15-Foot Tie-Down Strap Rated Capacity
10,000 lbs
Black Load Binder Rated Capacity
10,000 lbs
Type XXVI (26) 3-Foot, 2-loop Nylon Webbing Rated Capacity
10,000 lbs
Diameter of Landing Point Size 5
100 meters
CATS: "A" Category
A-22 Cargo Bag
CATS
Acronym used to determine under which circumstances sling leg variation is authorized at six (6) inches.
ACL
Allowable Cargo Load
WHATF: "A" Factor
Altitude
TEAM: "E" Factor
Amount of Equipment
Landing Zone (LZ)
Any area used for rotary wing flight operations
Obstacle
Anything 18" high, wide, deep or larger
What section of the Sling Load Inspector Handbook contains a list of commonly found sling load deficiencies?
Appendix G
CATS Categories
C: Cargo Nets A: A-22 Cargo Bag T: Tandem Load S: Single-Point Load with TWO (2) Sling Legs
Type of Helicopter or Operation Supported on Landing Point Size 4
CH-47/CH-53/H-3
CATS: "C" Category
Cargo Nets
The three types of loads
Certified Suitable Unique
What type of lights must be used if pilots are using Night Vision Goggles (NVGs)?
Chemlights or beacon lights
What is the distro order for the DA Form 7382?
Copy #1 goes to the supporting aviation unit. Copy #2 is secured to the load itself. Copy #3 goes to the supported unit.
Component 5
Coupling Link
Daytime distance between aircraft in landing points
Determined by aircraft touchdown point size
Nighttime distance between aircraft in landing points
Determined by aircraft touchdown point size
In heavy formations the distance between the first and third aircraft is
Doubled
Sling Leg chains are marked at what interval?
Every 10 links
Component 6
Eye
(Vertical Distance x 57.3)/(Horizontal Distance)
Formula for determining ground slope
(12500 x number of attachment points) x (0.63)
Formula for large clevis conversion
(6250 x number of attachment points) x (0.60)
Formula for small/medium clevis conversion
Nighttime Angle of Approach at a landing zone must be no more than this amount for inbound aircraft.
Four (4) degrees
WHATF: "F" Factor
Fuel
Hookup Team Protective Equipment
Goggles, Ear Plugs, Leather Gloves, Shockproof Gloves, Helmet, Static Discharge Wand with Grounding Rod, Flashlight with Wand (for night operations)
Wind direction within 45 degrees left or right of land heading is considered to be a:
Head wind
HLZ/PZ
Helicopter Landing Zone/Pickup Zone
Component 4
Hook
Which hand and arm signal may be used as a transitional signal?
Hover
WHATF: "H" Factor
Humidity
IIF
If it fits
Rule of the Apex: Is the CARGO HOOK REACH PENDANT compatible with the CH-47D?
If it fits
Rule of the Apex: Is the CARGO HOOK REACH PENDANT compatible with the UH-60A/L/M?
If it fits
Rule of the Apex: Is the TOP EYELET OF THE SLING LEG compatible with the CH-47D?
If it fits
Rule of the Apex: Is the TOP EYELET OF THE SLING LEG compatible with the UH-60A/L/M?
If it fits
How is the grounding rod applied?
In the ground at a 45 degree angle away from the hookup team?
Who receives Copy #2 of the DA Form 7382?
It is attached to the load
Certified Loads
Items of equipment and associated rigging procedures rigged in accordance with the US Army Natick Soldier Center
Component 3
Keeper
Suitable Loads
Loads that are not explicitly certified by the Natick Soldier Center but are demonstrated to have acceptable static lift and flight characteristics
Landing Sites should avoid
Locations that are constricted by terrain to the point of requiring Vertical Takeoff and Landing
Type of Helicopter or Operation Supported on Landing Point Size 6
Long Line Sling Load Operations
In what order are loads of the same height but varying weight attached to the cargo hooks of the CH-47?
Medium, Heavy, Light
How many flight and landing formations are there?
Nine (9)
Rule of the Apex: Is the 25,000 lb (25K) APEX SPACER compatible with the UH-60A/L/M?
No
Rule of the Apex: Is the CARGO HOOK REACH PENDANT compatible with the UH-1H/N?
No
Rule of the Apex: Is the TOP EYELET OF THE SLING LEG compatible with the UH-1H/N?
No
Rule of the Apex: Is the TYPE XXVI Nylon Webbing Apex (in donut or basket hitch configuration) compatible with the CH-47D?
No
Rule of the Apex: Is the TYPEXXVI Nylon Webbing Apex (in donut or basket hitch configuration) compatible with the UH-60A/L/M?
No
Rule of the Apex: Is the 10,000 lb (10K) APEX SPACER compatible with the UH-1H/N?
No. The Type XXVI Nylon Webbing Apex must be used for this aircraft.
Rule of the Apex: Is the 25,000 lb (25K) APEX SPACER compatible with the UH-1H/N?
No. The Type XXVI Nylon Webbing must be used for this aircraft.
TEAM: "A" Factor
Number of Aircraft
Type of Helicopter or Operation Supported on Landing Point Size 1
OH-6/OH-58
5,000 lb Cargo Net Color
Olive Drab
Sling Leg Color on a 10,000 lb Sling Set
Olive Drab
Breakaway ties should wrap around the sling legs how many times?
Once
Component 8
Pin
PQDR
Product Quality Deficiency Report
What clock positions relative to the aircraft should be avoided at all times?
Rear of the 8 o'clock and 4 o'clock positions
TM 4-48.09, Appendix D
Reference material covering the fabrication of a field-expedient static discharge wand
On which side is the cargo hook manual release located on the UH-60 model helicopters?
Right side of the aircraft
In a landing zone, the direction of flight should
Run along the longest axis
When using a VS-17 marking panel to mark an obstacle, what safety consideration should be made?
Securing the VS-17 panel to the obstacle, the ground, or another object to prevent it from flying into an aircraft.
Daytime Ground Slope must be equal to or less than this amount without notifying aviation unit for confirmation.
Seven (7) degrees
Aircraft approaches to Landing Sites
Should be along the longest axis and over the lowest obstacle
Landing sites for supply or resupply
Should be co-located with the on-ground short-term or long-term supply storage sites, so as to mitigate the need to further move delivered cargo
Aircraft exits from Landing Sites
Should exit into the wind
What is the first step of filling out the DA Form 7382?
Simplify the form
CATS: "S" Category
Single-Point Load with TWO (2) Sling Legs
Unique Loads
Single-use or low-frequency loads that are considered high-risk.
Daytime Angle of Approach at a landing zone must be no more than this amount for inbound aircraft.
Six (6) degrees
How many hand and arm signals are used during sling load operations?
Sixteen (16)
Type of Helicopter or Operation Supported on Landing Point Size 5
Sling Load Operations
Type of Helicopter or Operation Supported on Landing Point Size
Sling Load Operations Using Night Vision Goggles (NVGs)
Component 9
Spacer
Component 2
Spring
Under what conditions is it acceptable to use infrared (IR) marking devices?
Tactical situations
CATS: "T" Category
Tandem Loads
WHATF: "T" Factor
Temperature
TEAM: "T" Factor
Terrain
"One and three, gotta be..."
The first and third lifting legs on a load must alternate in direction from one another.
Daytime marking signal for landing points
The "T" light formation
When using the Type XXVI Nylon Webbing Apex in the nylon donut configuration, at what position should the Type IV Connector Link be placed?
The 3 o'clock or 9 o'clock position
Who is the final authority to change the load order on a CH-47?
The Air Crew
The Hook Up Team consists of
The Hook Up Man and the Static Probe Man
What happens if a breakaway tie is wrapped around a sling leg more than once?
The breaking strength of that tie is increased
Landing points are measured from
The center of one landing point to the center of another
WHATF
The five factors that determine the aircraft's allowable cargo load (ACL)
TEAM
The four main factors in determining the number of landing points at a landing site.
"... Two and four, either or."
The fourth and second lifting legs on a load must alternate in direction from one another, relative to the direction of the third lifting leg.
If an obstacle cannot be removed or reduced, what must happen?
The obstacle must be marked using a "high visibility" method
What should be done if a grabhook assembly is found to have a roll pin?
The roll pin should be drilled out with a 13/64" diameter drill bit and replaced with a bolt and locknut
Who selects the location of helicopter landing sites to best support the operation?
The supported or receiving unit commander with advice from the aviation unit liaison officer
Who receives Copy #3 of the DA Form 7382?
The supported unit
Who receives Copy #1 of the DA Form 7382?
The supporting aviation unit
A-22 Cargo Bag Link Count
Three (3)
Nighttime Ground Slope must be equal to or less than this amount without notifying aviation unit for confirmation.
Three (3) degrees
Why is the grounding rod applied at a 45 degree angle?
To avoid accidental impalement
Why is the Type XXVI Nylon Webbing Apex used on the UH-1 model helicopter?
To avoid metal-on-metal frictional contact when hooking up and delivering the load
Why is the Type IV Connector Link placed at the 3 o'clock or 9 o'clock position when used in the nylon donut configuration?
To avoid metal-on-metal frictional contact with the aircraft cargo hook
Purpose of Sling Load Minimum Capacity Weight
To prevent the sling load from dragging rearward and making contact with the tail rotor of the aircraft.
Every attempt should be made to remove or reduce obstacles in a landing zone.
True
If the ground supports a 5-ton truck, the landing point can support a size 4 helicopter.
True
Number 1 landing point can be marked with a code letter "T" during nighttime operations.
True
The number 2 aircraft is to the RIGHT of the number 1 aircraft in a HEAVY LEFT formation
True
The signal man must maintain direct eye contact with the pilot at all times during sling load operations
True
Type of Helicopter or Operation Supported on Landing Point Size 2
UH-1/H-65
Type of Helicopter or Operation Supported on Landing Point Size 3
UH-60/H-2
Cellulose Webbing
Used to pad and protect breakable and sensitive items in a load
2" masking tape
Used to shatterproof glass on vehicle loads
The #1 and #2 sling legs are always the...
outermost and forward sling legs
