Bob Kuykendall wrote:
No, not true. As I've written elsewhere the manufacturing cost seems
to scale exponentially with span.

I don't pretend to be as knowledgeable as you about gliders, but
i know that exp(15/14) is not very different from 15/14.

One has to chase economies elsewhere.

One must chase economies everywhere.

Mostly in the hourly cost of manpower, e.g. by building in China,
not paying horrendous fees to some university departments to do the
computations when it is certainly possible to get them for free,
and so on. Probably everything else is negligible.


--

Michel TALON