For those interested in molding carbon fiber D-tubes (aka "Taco Shells"), and other carbon parts where cloth is preferable to unidirectional or mat. Copied and Pasted from SEN (SCAT Electronic Newsletter) <sen@faifreeflight.org> sign up, it's free. This stuff has been in use for about 30 years in FAI FF. Build 'em stiff and light!

Steve
light Carbon information
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Carbon fiber biaxial you can find in R & G composites in Germany 20 , 29
, 30 , 39 grams sq/dm , and T Extreme in different weights , in England
http://www.hyperflight.co.uk/ Carboline (ukranian carbon from Vladimir
models) 26, 38 grams sq/dm and more at good price