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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 Egglick on 9/21/2007 10:06:47 AM , Rating: 2
Studies have shown that lowering the speed limit doesn't positively impact accident rates. I also highly doubt that the material of a vehicles body has any effect on whether you crash said vehicle.

I think higher accident rates are mainly the result of significantly more cars and people on the road.

By CascadingDarkness on 9/21/2007 1:33:59 PM , Rating: 2
I think higher accident rates are mainly the result of significantly more cars and people on the road.

This statement is totally opposite.

The word rate would imply a scale or percentage. I would expect the number of accidents to increase with amount of cars. While the rate (percentage), of say, accidents per thousand, decreases with safety improvements increase.

By Egglick on 9/22/2007 12:15:59 AM , Rating: 3
When you reach a point where there is overcrowding, traffic jams, and roads which weren't built to handle this amount of increased traffic, the rate will go up as well as the number .

"Nowadays you can buy a CPU cheaper than the CPU fan." -- Unnamed AMD executive
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