MIL-T-12407 Trucks: Patient Transport, Van Conversion, Diesel Or Gasoline Engine Driven, 4X2 And 4X4, Modified CommercialThis specification covers forward control, diesel or gasoline engine driven, four-wheel, two-wheel and four-wheel drive commercial trucks converted for use as 4 litter patient or 8 seated passenger patient transport vehicles.

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MIL-T-12407X(AT)

3.2.6 Ratings. Vehicle and component ratings shall be the manufacturer's published ratings. Vehicle and component ratings shall not be raised to meet the requirements of this specification. When published ratings are not available, verification of the ratings shall be available to the engineering office of the procuring activity.

* 3.2.7 Standard frame and driveline. The chassis frame and driveline shall be the chassis manufacturer's standard and shall not be spliced to extend the wheelbase.

3.2.8 Wheelbase. The wheelbase shall be not less than 123 inches.

3.2.9 Angle of approach, ramp breakover, and departure. The vehicle, loaded to the required GVW, with bumpers and rear step (with step down if folding style), shall provide not less than the following clearances, measured in accordance with SAE J689:

Approach angle -20 degrees Ramp breakover -10 degrees Departure angle -10 degrees

3.2.10 Interchangeability The vehicle chassis, body, equipment, seats, and component parts shall-be fabricated and assembled through the use of tooling which ensures production of interchangeable parts and assemblies.

3.2.11 Strength. Materials, fabrication, and attachment of all vehicle equipment and furnishings shall be adequate to withstand working stresses including dynamic loads encountered in mobile operations and all normal usage.

3.2.12 Accessibility. The design of the vehicle and optional equipment shall permit access for routine servicing and shall permit access for replacement and adjustment of component parts and accessories with minimal disturbance of other components and systems.

3.2.13 Asbestos. Asbestos materials shall not be used in any form in any part of the vehicle.

3.3 Performance. The vehicle shall meet the following performance requirements. For

4x4 model vehicles, performance requirements shall be met with front wheel drive disengaged except that a vehicle equipped with interaxle compensating devices shall meet the performance requirements with the front wheel drive engaged.

3.3.1 Speeds and gradeability. High and low speed requirements shall be met with the vehicle loaded to the required GVW as specified in 3.2.5. The vehicle shall be capable of maintaining a high speed of not less than 70 miles per hour (mph) on smooth, approximately level road surfaces, with the engine operating within the recommended maximum revolutions per minute (rpm).