wrote in message
...
I was wandering aimlessly around the internet and found the Hexcel
web site.

They have a lot more products than they use to have, one of which is
pretty much made for uses as BMW .

http://www.hexcel.com/products/indus...exmc-materials

There is a chart there which shows Hexmc as being a bit stiffer than

Steel and about half the weight of aluminum. And slightly lighter
than Magnesium.

Dan

Specific Tensile Modulus appears to be the ratio of weight to
stiffness. Notice how similar the metals are despite their greatly
differing densities. All four plus wood are suitable for aircraft.

-jsw