points shall have a minimum clear opening of four inches to allow attachment of
the chain with a
Documentation and Certification.
All documentation and certification shall be available
during the First Article Test and upon request be furnished to the engineer during the First Article tests.
Required certifications from OEMs.
Pintle hook rating.
Axle load rating.
Engine compatibility with requirements as stated in purchase description.
Transmission rated for gross engine horsepower and compatibility with towing
requirements as stated in purchase description.
WP-ASD air transportability certification, where no park shoring is required.
EMI test (with signature of appropriate QAR that was present),
Miles per gallon certification.
Certify gross and net horsepower and torque in accordance with SAE J690. This
shall include forms shown in Figure 1 and 3. A "Description of Engine and
Equipment" table and "Power Absorbing Accessories, Equipment and
Attachments" table shall be included.
Tire rated for 4.5 G.V.W. loadings.
Cooling system will maintain the oil below transmission's recommended
maximum `effort, continuous use, temperature during 125° F ambient conditions.
Analytical Review. Contractor shall supply certification or verifying calculations, upon
request of the Engineering Activity, that any component or system is in compliance with
this specification. The calculation shall have all variables labeled and well defined, and
be presented in an easy to read format.
Dimensions and tolerances A Dimensions and tolerances not specified shall be as close as is
consistent with the best shop practices. Where dimensions and tolerances may affect the
interchangeability, operation or performance of the tractor, they shall be held or limited accordingly.
The unloaded tractor shall:
Maintain a forward speed of at least 15 miles per hour (MPH), plus 1.5, minus O MPH, on a
level paved road.
Maintain a reverse speed of at least 2.5 MPH on a level paved road.
Ascend and descend a 12 percent grade without spillage of any fluid.
Negotiate a 10 percent side slope in each direction without spillage of any fluid,
Negotiate, in each direction, a ramp with a 20.8 percent minimum slope connecting two
horizontal surfaces. The ramp length shall beat least 1.2 times the wheelbase of the