Wednesday, February 9, 2011

Hummer H, 2002

Hummer H, 2002


The Hummer H1 is a civilian vehicle based on the High Mobility Multipurpose Wheeled Vehicle (HMMWV), popularly known as the Humvee, which was created by AM General.

The Hummer H1 has three common variants: a convertible-like soft top, a four-door hard top pickup truck and a Wagon body version. Other less known variants include a two-door pickup truck and a four-door slantback. At this time, the convertible/soft top and the station wagon versions are the only ones available in the mass market. The two door and four door pickup versions are only available in fleet livery.
Hummer H1

Five engine types and three automatic transmission types can be found in Hummer H1s. The common engine/transmission combinations are:
    * 6.2 L Detroit Diesel V8/GM TH400/3L80 3-speed
    * 6.5 L Detroit Diesel V8/GM 4L80-E 4-speed
    * 5.7 L Vortec 5700 gasoline V8 TBI/GM 4L80-E 4-speed
    * 6.5 L turbo Detroit Diesel V8/GM 4L80-E 4-speed
    * 6.6 L Duramax LLY turbo Diesel/Allison 1000 5-speed (model year 2006)

The Hummer H1 shares some common driveline parts with its HMMWV brethren. Items like brakes, differentials, frame and major body panels (hood, tailgate and quarter panels) are identical between the HMMWV and the Hummer H1. All Hummer H1s and HMMWVs come off the same first stage assembly line, and then are separated midway to either become a military HMMWV or a civilian H1.

Hummer H1s are unique in the way they handle off road. They are inherently very stable, thanks to their wide stance. They also can ford 30 inches (76 cm) of water, climb a 22-inch (56 cm) step, have a stock ground clearance of 16 inches (41 cm) (thanks to its design of tucking driveline components inside a channel, which subsequently intrudes into the cabin space of the vehicle), have approach/departure angles of 72/37.5 degrees and most H1s are equipped with Central Tire Inflation System (CTIS), which enables the driver to increase or decrease the tire air pressure at will.

Hummer H1s have many unusual features. They use inboard brakes. They have geared hubs, allowing the drivetrain's half shafts to be up high for greater clearance. The radiator is up high, sloping back over the engine. Rather than using simple runflat tires, aluminum or rubber inserts are an optional feature for runflat ability. A central tire inflation system is available as an option. Chemical warfare resistant paint is available only on the military version.


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