Specifications

Proposal Number PSDF #P09-0004
The apparatus cab shall be of the latest in automotive design, styling and appearance.
CAB MATERIALS AND CONSTRUCTION
The extruded aluminum xl cab shall have the following material gauges as a minimum:
 Cab floor - 3/16" (.190") aluminum
 Front skin - 3/16" (.190") aluminum
 Cab side panels - 3/16" (.190") aluminum
 Cab rear wall - 3/16" (.190") aluminum
 Cab driver's floor - 3/16" (.190") aluminum
 Cab officer's floor - 3/16" (.190") aluminum
 Cab crew area floor - 3/16" (.190") aluminum
 Cab roof - 3/16" (.190") aluminum
 Cab doors - 3/16" (.190") aluminum
Roof Rail Section Extending from the front to the rear of the cab above the doors the cab shall have and
extruded aluminum section. This section shall be designed to interlock with the roof sheet and incorporate
the door drip molding in one single piece.
Upper Transverse Member Amid ship in the cab there shall be a boxed beam header assembly located
transverse in the cab from left to right.
Front Door B-Post This vertical box section of the cab located behind each of the front doors provides the
slam post for the door latch assembly. This section also is a main member in the cab skeletal system. The B-
Post ties into the Upper Transverse Member to provide torsional stiffness in the open space design of the cab.
Rear Door B-Post The box assembly design of the rear door B-post provides an anchor for the rear door
latch assembly. This section is the main vertical support at the cab rear corner providing the anchor point for
the rear wall structural lattice network.
Roof Panel Rails - The roof panel sub-assembly shall have extruded hat section supports bonded to the roof
skin. These roof hat sections shall be joined to the Cab Roof Rail Section to complete the upper cab skeletal
structure. These completed Roof Panel Rails shall provide a grid for maximum roof crush and deflection
strength. The roof shall support a minimum weight of 250 lbs. / sq. ft. without permanent roof deformation.
Rear Wall Rails - The rear wall assembly shall have extruded hat section supports bonded to the wall skin.
These sections shall be joined to the Roof Panel Rails and to the rear door slam post and floor provide a rear
wall grid structure with maximum strength.
Cab Front Wall - The front wall of the cab shall be designed with a double wall construction to reduce the
effects of exterior noise in the crew and operator compartment.
CAB CRASHWORTHINESS TEST
Dynamic tests shall be performed to evaluate the crashworthiness of the proposed vehicle cab configuration
to the requirements of NFPA 1901-09 section 14.3.2.
Cab roof strength shall be tested utilizing the dynamic preload criteria from SAE J24221 paragraph 5
specifications and procedures.
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