Earl Colby Pottinger wrote:

Really, then name one useful thing learnt from the non-building of the X-33.

Multi-lobe composite pressure vessels are hard to make. Very hard to
make.

Cryopumping in composite structures is a serious problem.


There. That's two things.

--
Scott Lowther, Engineer
Remove the obvious (capitalized) anti-spam
gibberish from the reply-to e-mail address