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|  MIL-T-12407X(AT)
(ac)
If air conditioning is not required (see 3.6.10).
(ad)
Two spotlights in lieu of a single spotlight, if required (see 3.7.1.1).
(ae)
Removal of spotlight(s) and floodlight for shipment, if required (see 3.7.2).
(af)
Auxiliary, 110-volt circuit, if required (see 3.7.3).
*
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. 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 1 should
include the vehicle model number, wheelbase engine model number, and vehicle type. The factors
to be used in predicting truck ability (site 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 tire furnished by the
contractor in accordance with this specification.
Table 2
- Altitude Factor. 1.00
Table 3
- Rolling Factor. 2.080
Table 4
- Area Factor. 0.092
Table 5
- Velocity Factor. 432.0
Table 6
- Altitude Factor. 1.00
Table 7
- Chassis Friction Horsepower. 4.5
Table 8
- Grade Factor. 0.62
Table 8A
- Correction Factor. Not required
Table 9
- Road Factor. 0.0.
6.4 Oxygen tank. The following are the appropriate dimensions, weights, and capacities
of the various sizes of oxygen cylinders referenced in this specification (Tanks shall conform to
DOT specification 3AA2015):
"E"
"M"
Outside diameter (0.250 -0) inches
4.250
7
Overall heights w/valve (inches)
29
46
Capacity (cubic feet)
22.100
106
Weight, empty (pounds)
20
75
Weight, full (pounds)
22
83
6.5 International Standardization Agreement. Certain provisions of this specification
pertaining to litter handling capability (see 3.6.1, table II, 3.6.3, and figure 1) are the subject of
international standardization agreement, STANAG No. 2040. When an amendment, revision, or
cancellation of this specification is proposed which will affect or violate the international
agreement concerned, the preparing activity will take appropriate reconciliatory action through
international standardization channels including departmental standardization office, if required.
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