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|  MIL-T-62518A
(ay)
Rechargeable electrical system, if required in addition to PTO (see 3.6.9).
(az)
Auxiliary engine, if required in addition to PTO (see 3.6.10).
(ba)
Auxiliary engine fuel tank, if required (see 3.6.10.6).
(bb)
Air compressor (furnished only with auxiliary engine), if required
(see 3.6.10.9).
(bc)
If a ground hydraulic tool outlet is not required (see 3.6.11.1).
(bd)
If a basket(s) hydraulic tool outlet and hose are not required (see 3.6.11.1.1).
(be)
Hydraulic capstan hoist, if required (see 3.6.11.3).
(bf)
Hydraulic impact wrench and drill, if required (see 3.6.11.4).
(bg)
Hydraulic chain saw, if required (see 3.6.11.5).
(bh)
Hydraulic chain saw, pole mounted, if required (see 3.6.11.6).
(bi)
Hydraulic circular saw, pole mounted, if required (see 3.6.11.7).
(bj)
Hydraulic pruner, pole mounted, if required (see 3.6.11.8).
(bk)
Hydraulic hose reel, if required (see 3.6.11.11).
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, class. 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 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, tabulated
454 kg (1,000 pounds)) and the engine rpm
(to nearest 100 revolutions) which is required
for 80 km/h (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.
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