MIL-T-46797 Truck, With High Lift Dump Mechanism: Dump, Cargo And Stake Body Types, Diesel And Gasoline Engine Driven, 24,000 Gvw, 4X2, CommercialThis specification covers diesel and gasoline engine driven, four-wheel, two-rear-wheel drive, commercial trucks with a high lift dump mechanism. The truck has a minimum gross vehicle weight GVW of 24,000 pounds for normal operating conditions. Vehicles procured under this specification are commercial items which shall be warranted by the manufacturer as specified in procurement documents.

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MIL-T-46797B(AT)

(q)    Wide base type tires and wheels, if required (see 3.4.10). (r)     Disc type wheels, if required (see 3.4.10).

(s)     Bias ply tires, if required (see 3.4.10.1).

(t)     Spare wheel or rim, if required (see 3.4.10.3).

(u)    Spare tire, if required (see 3.4.10.4).

(v)    Desiccant type air dryer, if required (see 3.4.11.1(j)).

(w)   Automatic slack adjusters, if required (see 3.4.11.1(k)).

(x)    Brake controls for use from a towing vehicle, if required (see 3.4.11.3).

(y)    Individual driver and passenger seats, if required (see 3.4.12). (z)     Tools, if required (see 3.4.16.1).

(aa)   Air operated horn, in addition, if required (see 3.4.21). (ab)   Engine hour meter, if required (see 3.4.22).

(ac)   Swing center racks, if required (see 3.5.3).

(ad)   Composite type floor construction, if required (see 3.5.3.6).

(ae)   Hydraulic fluid conforming, to MIL-H-46170, if required (see 3.5.5.4.1).

6.3  Performance prediction.  Completed copies of SAE Truck Ability Prediction Procedure form and computation for tow speed requirements for each vehicle model furnished under contract shall be submitted as specified in the contract.  Unless other conditions are cited in the contract, computations should be made for normal atmospheric pressure, normal ambient air temperature, and still, dry air.  The SAE Work Sheet Item I should include vehicle model number, wheelbase, engine model number, transmission model number, and vehicle type.  The factors to be used in predicting truck ability (see 3.3.1.1) 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.  0.173

Table 5                                             -  Velocity Factor.  250.0

Table 6                                             -  Altitude Factor.  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

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