maybe because the Wrights didn't fly for hours at a time, and only had to
hold their heads up for a matter of minutes?

"Gill Couto" wrote in message
news:gusHb.24528$J77.3186@fed1read07...
I want to ask you folks a question: why isn't there a glider where
the pilot flies face-down? The Wrights did it, the Horten (?) wing,
and hang gliders are about the only thing you can fly facing the
earth. I don't see why a sailplane couldn't be flown that way, but no
designers appear to even consider the possibility. Ideas?

GillCouto.com