A-A-58004 Truck, Fire Fighting, Water Tanker, 4,000 Gallon CapacityThis commercial item description \(CID\) covers a commercial water tanker truck. The tanker has a 6x4 chassis with a diesel engine and an automatic transmission; a two person cab with two doors; a 4,000 gallon water tank; a 1,250 gallon per minute \(gpm\) fire pump; equipment compartments; and hose. The water tanker truck is intended to: store and transport water over paved roads, gravel roads, or unimproved surfaces, and draft, pump, and transfer water in support of brush, structural, and aircraft fire fighting vehicles.

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A-A-58004F

2.1 Administration.

2.1.1 Environmental conditions.

2.1.1.1 Altitude. Unless otherwise specified (see 6.2), the tanker, including the pumping system,

shall be designed for operation at 2,000 feet above sea level.

2.1.1.2 Temperature range. The tanker shall be capable of satisfactory storage and operation in

temperatures ranging from 0� to 125� F. The tanker shall be equipped with a winterization

system that extends the operational range of the tanker. The winterization system shall protect

the agent pump, agent piping systems, firefighting systems, and water tank to 0� F. It shall also

include the vehicle engine oil and coolant systems. While in operation, the appropriate systems

requiring winterization shall be powered by the tanker. While in storage, the winterization

system shall be powered through the electrical shoreline connection (see 2.9.1).

2.1.2 Foreign object damage. All loose metal parts, such as pins, shall be securely attached to the

vehicle with wire ropes or chains. "Dog tag" style beaded chains shall not be provided.

Removable panels, if provided, shall be attached with captive fasteners.

2.1.3 Mobility.

2.1.3.1 Operating terrain. The tanker shall operate on paved and graded gravel roads.

2.1.3.2 Acceleration. The fully loaded tanker shall accelerate from 0 to 35 miles per hour (mph)

within 25 seconds on a level, paved road.

2.1.3.3 Maximum speed. The fully loaded tanker shall attain a minimum top speed of 50 mph on

a level, paved road.

2.1.4 Overall dimensions. Overall dimensions shall be the minimum consistent with the

operational performance and the design constraints necessary to achieve the specified

performance. Overall dimensions shall not exceed:

Length

390 inches

Width

102 inches (excluding mirrors)

Height

120 inches

2.1.5 Turning diameter. The fully loaded tanker shall have a wall to wall turning diameter of less

than three times the length of the vehicle.

2.1.6 Angles of approach and departure. The fully loaded tanker shall have angles of approach

and departure of not less than 20� as required by 5.3.2.3 of NFPA 1906. The rational is that

vehicle will be used for wildland fire fighting.

2.1.7 Vehicle Stability. Vehicle shall comply with roll over stability criteria as defined by NFPA

1901, paragraph 4.13.