Bob Fry schreef:

jo PS1 I am very happy with the tone of this discussion: only
jo positive reactions,

Hmmm. This may be the first negative one. If someone doesn't
understand Re, should they be designing an airplane? I don't think
one can pick up sufficient fluid and structural mechanics on Usenet to
be a reliable aircraft designer.

Bob, I do not consider your reply negative. Concerns about excessive
risks are very positive indeed. Thanks very much!