MIL-T-11663 Truck, Materials Handling, Container Hoisting, Rear Hoist, 21,000 To 32,000 Pounds Gvw, 4X2This specification covers diesel or gasoline engine driven, four-wheel, two-rear-wheel drive materials handling trucks having gross vehicle weights GVW of 21,000 to 32,000 pounds, for normal operating conditions. Vehicles procured under this specification are commercial items which shall be warranted by the manufacturer as specified in acquisition documents.

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MIL-T-11663K

(t)     Tilt type cab, if required (see 3.4.12)

(u)    Individual driver and passenger seats, if required (see 3.4.12). (v)    Periscope for type II vehicles, if required (see 3.4.12.1).

(w)   Air operated horn, in addition, if required (see 3.4.21).

6.3  Performance prediction.  SAE Truck Ability Prediction Procedure computations and computations for low speed and maximum geared speed will be required by the contract.  The SAE Work Sheet item 1 should include vehicle model number, engine model number and vehicle type and class.  Unless other conditions are cited in the contract, computations should be for normal atmospheric pressure, normal ambient air temperature, and still, dry air.  The factors to be used in predicting truck ability (see 3.3.1) are established as follows for the corresponding SAE Truck Ability Prediction Procedure Tables:

Table 1                        - Tire Factor.  This factor must relate to the size of tires furnished by the contractor in accordance with this specification.

Table 2                        - Altitude Factor.  1.00

Table 3                        - Rolling Factor.  1.613

Table 4                        - Area Factor.  .208

Table 5                        - Velocity Factor.  250.0

Table 6                        - Altitude Fctor.  1.00

Table 7                        - Chassis Friction Horsepower.  Use applicable power unit GVW (to nearest, higher, 1000 pounds) and the engine rpm (to nearest

100 revolutions) which is required for 50 mph geared speed.  For GVW and engine speed beyond the range of this table, factors shall be extrapolated.

Table 8                        - Grade Factor.  0.75

Table 8A                     - Correction Factor.  Not required. Table 9                        - Road Factor.  0.0

*    6.4  Subject term (key word) listing.

Container hoisting Lifting capacity Stabilizing jack Telescopic mast Truck, commercial Truck, nontactical

Truck, materials handling, container hoisting.

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