Plastic 737?

[tomgoodman]

Oh, now I see!

Here's more than you ever wanted to know about the plastics used in aerospace composites:

http://www.angelfire.com/ma/ameyavaidya/c_matrix.htm

It certainly is! I once heard Burt Rutan "simplify" his description when the audience became a little dazed: "Well, think bed sheets and honey."