| 摘要 |
A boom carrying vehicle such as a fire engine having an extremely high-strength, low-weight frame including a chassis having front and rear wheels, a cab mounted proximate said front wheels, a turntable mounted proximate said rear wheels, a boom mounted on said turntable, an engine mounted on said chassis immediately forward of said rear wheels, said chassis being fabricated from a plurality of box sections extending lengthwise of the vehicle and a cross box section connecting the lengthwise box sections in the area of the rear axle so as to provide high torque resistance to the chassis both when it is being driven and when it is stationary with the boom in operation, a control panel and an operator platform located between the engine and the cab, and a fan assembly for directing air heated by the engine toward the control panel to prevent freezing thereof in cold weather.
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