Attachment 1-Salient Characteristics 26K HelMAS.pdf

26K HelMAS Salient Characteristics

1) The 26K HelMAS system shall be capable of loading any helicopter that requires approach shoring, but does NOT require the TLG assembly, to include CH-47s, LUH-72s, and MH-6s. It shall be also be capable of loading equipment with small caster wheels.

2) The system shall be compatible with C-130, C17 & C5 aircraft.

3) When under a full load, no pressures on aircraft cargo floor or cargo ramp will exceed 50 psi.

4) Each left/right ramp component assemblies shall be rated at 26,000 lbs. maximum single axle, 36" wide, no thicker than 4”, two carry handles on each side.

5) The optional center ramp assemblies, when required for a Tail Landing Gear (TLG) or Nose

Landing Gear (NLG) shall be rated at 13,000 lbs. maximum single axle (6,500 lbs. per single tire), 24” wide, no thicker than 4”, two carry handles on each side. *

6) HelMAS assembly will have pooched plate surface, providing the minimum friction coefficient of:

Dry: 80 and Wet: 63

Per Pendulum Test Value (PTV) with Four S (96) hard rubber slider

7) HelMAS assembly will have a minimum total length of 244 inches.

8) All components that come in contact with the aircraft cargo floor or cargo door have smooth belting bonded securely to the base (e.g. Ramp Pads, and Stands).

9) All components must be certified by ATTLA # 2012.02.06.02 Rev 1.

10) All components must NOT subject to DoD Manual 4140.65-M, and are to be compliant with the

International Standards for Phytosanitary Measures (ISPM), United States Department of

Agriculture (USDA), Animal Plant Health Inspection Service (APHIS) Plant Protection and Quarantine

(PPQ) program, and the International Plant Protection Convention (IPPC).

11) Rated capacity shall be no more than 50% of breaking strength (2 to 1 safety factor)

12) Each HelMAS, and sub-component, will be fabricated by a welder certified by the American

Welding Society (AWS).

See individual component salient characteristics on following pages

Item 1A – Ramp, Q6946

a. Single axle rating - 26,000 lbs. per single axle

b. Multiple axle rating (spaced GREATER THAN 50”apart) - 20,000 lbs. per axle/40,000 total weight

c. Multiple axle rating (spaced LESS THAN 50” apart) – 26,000 lbs. combined axle weights

d. 94” Length, 36” Wide, 4” Thick

e. 2 Steel carry handles on each side of ramp

f. Traction provided by pooched plate top surface

g. Pooched plate surface will provide the minimum friction coefficient of:

Dry: 80 and Wet: 63

Per Pendulum Test Value (PTV) with Four S (96) hard rubber slider

h. Ramps pin to Ramp Pads and to Stands using ¾” Steel Rods and Retaining Clips

Item 1D – Ramp, Q6971 *

a. Single axle rating - 13,000 lbs. per axle

b. Multiple axle rating (spaced GREATER THAN 50”apart) - 10,000 lbs. per axle/20,000 total weight

c. Multiple axle rating (spaced LESS THAN 50” apart) – 13,000 lbs. per axle

d. 94” Length, 24” Wide, 4” Thick

e. 2 Steel carry handles on each side of ramp

f. Traction provided by pooched plate top surface

g. Pooched plate surface will provide the minimum friction coefficient of:

Dry: 80 and Wet: 63

h. Ramps pin to Ramp Pads and to Stands using ¾” Steel Rods and Retaining Clips

Item 2 – Ramp Pad, Q5467

a. 40” Length, 8” Wide, 4” Tall

b. Smooth belting bonded to underside to prevent “metal-to-metal” contact with aircraft.

(eliminates the requirement for parking shoring)

c. Ramps and Wedges pin to Ramp Pads using ¾” Steel Rods and Retaining Clips

Item 2B – Ramp Pad, Q6708 *

a. 24” Length, 8” Wide, 4” Tall

b. Smooth belting bonded to underside to prevent “metal-to-metal” contact with aircraft.

(eliminates the requirement for parking shoring)

c. Ramps and Wedges pin to Ramp Pads using ¾” Steel Rods and Retaining Clips

Item 3 – 13”-15” Stand, Q6030

a. Adjustable height 13” -15” uses ¾” Zinc Coated Steel Pins and Retaining Clips for height adjustment

b. Smooth belting bonded to underside to prevent “metal-to-metal” contact with aircraft.

c. Ramps pin to Stands using ¾” Steel Rods and Retaining Clips

Item 5A – 36”x 28” Wedge, Q6947

a. Single axle rating - 26,000 lbs. per axle

b. 28” Length, 36” Wide, Incline height 0” - 4”

c. Smooth belting bonded to underside to prevent “metal-to-metal” contact with aircraft.

d. Traction provided by pooched plate top surface

e. Pooched plate surface will provide the minimum friction coefficient of:

Dry: 80 and Wet: 63

f. Wedges pin to Ramp Pads using ¾” Steel Rods

Item 5C – 24”x 28” Wedge, Q6915 *

a. Single axle rating - 13,000 lbs. per axle

b. 28” Length, 24” Wide, Incline height 0” - 4”

c. Smooth belting bonded to underside to prevent “metal-to-metal” contact with aircraft.

d. Traction provided by pooched plate top surface

e. Pooched plate surface will provide the minimum friction coefficient of:

Dry: 80 and Wet: 63

f. Wedges pin to Ramp Pads using ¾” Steel Rods

* The optional center ramp assembly may be required for certain helicopters that have a Tail

Landing Gear or Nose Landing Gear.