MIL-PRF-83817 Truck, Lift, Fork, 4,000 Pound Capacity, Variable Reach, Rough TerrainThis document covers a variable reach, rough terrain forklift truck with a 4,000 pound lift capacity at a reach of 23.5 feet which is air-transportable in C-130,C-17, and C-5 aircraft. The truck will be used primarily to load and unload palletized cargo to and from 8 feet wide by 20 feet long ISO shipping containers. The forklift will operate on hard paved surfaces, soft soil, mud, snow, and sand, on level and hilly terrain.

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MIL-PRF-83817B

3.3.9.9.1 Adjustable cab. If the vehicle is designed to operate with the cab in only one position,

the ROPS/FOPS is only required in that position. If the vehicle is designed to operate with the

cab in multiple discrete positions, the ROPS/FOPS is required in each discrete position.

3.3.9.10 Heater and defroster. The heater and defroster normally provided on the contractor s

standard, commercial model shall be provided.

3.3.9.11 Towing hitch. A pintle type, towing hitch shall be installed at the center rear of the

forklift, with the center of the hitch opening 22 to 30 inches above ground level. The pintle shall

be capable of sustaining a rearward, horizontal force of at least three times the gross vehicle

weight (GVW) of the forklift. The pintle type, towing hitch shall be designated as a retrieval

device only, either by marking on the forklift or in the operator s manual.

3.3.9.12 Towing lugs. Two lugs, one on each side of the towing hitch, used for towing or

securing safety chains shall be installed. The lugs shall be of sufficient diameter to accept

common chains and hooks three inches in diameter and capable of sustaining a rearward,

horizontal force of at least three times the GVW of the forklift for a maximum of 500 feet.

3.3.9.13 Tires. The tires shall be pneumatic, with an off-road tread pattern. Tire loading shall

not exceed the tire load limits specified in Tire and Rim Association Yearbook when using the

off the road 5 MPH tables.

3.3.9.14 Horn. The manufacturer s standard horn shall be provided.

3.3.9.15 Aircraft loading fork attachment. The forklift shall be equipped with an aircraft loading

fork attachment to be used for positioning fixed tongue, rolling stock of one or two fixed axles,

at least 2,000 lbs tongue weight, and at least 10,000 lbs gross weight when measured with

horizontal tongue. It is acceptable to provide a means of stopping the boom from extending to

meet this requirement. If a stop is required, the boom stopper shall be engaged and disengaged

by the seated operator.

3.3.9.15.1 Aircraft loading operations. Use of the aircraft loading attachment may be limited to

operations that support loading rolling stock into and out of cargo aircraft including but not

limited to the C-130, C-17, and C-5. The aircraft loading ramp must be no steeper than the level

kneeled, aft ramp of the C-5 with a sufficient loading envelope to allow the forklift to enter the

aircraft in operational mode, (see 3.6.1). Operations are limited to hard paved surfaces with level

terrain with the forklift in first gear. The operator, without leaving their seat and while

maintaining full control of the forklift, shall be able to see the pintle on the ALFA during all

operations. The aircraft loading attachment shall be retained using MIL-DTL-25959 qualified

tiedown adjusters and the associated MIL-DTL-6458 qualified chain connected to the aircraft

loading fork attachment. The Aircraft Loading Fork Attachment must be removed to meet air-

transport mode requirements (see 3.6.3.1). The aircraft loading fork attachment is not approved

for any other operations. The following features shall be included:

a. Two steel D-ring devices with a minimum inside diameter of 2.0 inches and not

more than 0.75 inches thick allowing secure retention on the forks / fork carriage