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TPI Composites General Manager Kevin Weldi poses with the new Humvee  (Source: Associated Press)
New composite Humvees shed 900 pounds of weight

Humvees are synonymous with transporting troops on the ground during times of war. The ubiquitous workhorses are also pretty lacking when it comes to protection from enemy fire and improvised explosive devices (IEDs).

The U.S. Army in conjunction with AM General Corp. and TPI Composites Inc. are looking to composite materials to give its soldiers a better chance at surviving treacherous working conditions on Iraq.

Its latest test bed is a Humvee that features a frame and body made of composite materials. Resin material is used to bond together balsa wood, carbon reinforcements, fiberglass and foam. The use of composite materials on the Humvee shaves 900 pounds off the usual 10,000 to 12,000 pound vehicle weight.

"We can put the strength where we need it," said TPI Composites CEO Steven Lockard. "Every pound of weight we save, that weight is being added back to the vehicle in armor and mine-blast protection."

Additional armor could be placed under and around the cabin area of the Humvee to protect the passengers, while the composites materials alone could be used for the hood and fenders.

Predictably, the new composite-bodied Humvees are slightly more expensive than their conventional counterparts and the Army still hasn't made a firm commitment to purchasing the vehicles.

With that said, TPI Composites is fully prepared should the Army give the company the green light. "We could ramp up pretty quickly to most any volume that would be desired," said Lockard.



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By sdifox on 9/21/2007 12:05:06 PM , Rating: 3
quote:
These humvees aren't being made out of straight carbon fiber either. They're using fiberglass, balsa wood, carbon reinforcements (probably some carbon fiber), and foam. So don't compare them to a high performance race car who's chassis costs more than one of these Humvees.


But what we are talking about here is just replacing the body panels more than anything else with the composite material. The weight saving then gets moved to more armour. Sounds good to me.


"We don't know how to make a $500 computer that's not a piece of junk." -- Apple CEO Steve Jobs

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