wrote in message
oups.com...

I note that some gliders are controlle with a joystick which
makes me curious as to how the control surfaces are powered.

Assuming these are useable by people who lack the forearms of
a truck driver, how are they powered?

Do these systems use electric servos with a battery recharged
on the ground? Do they use vaccumm assist from a venturi?

Just asking?

--

FF


You really need to visit the nearest gliderport and take a ride. Assuming
you are in the USA, check www.ssa.org and click the button "Where to fly" to
find the nearest location.

One of the great beauties of gliders is their simplicity. Usually, the only
"power" in the glider is a small battery to power the radio and a few
instruments. Everything else is powered by the pilot.

The control forces in modern gliders are small enough that pilots can fly
with their finger tips most of the time. If you see a glider pilot with
"truck driver forearms", it's from assembling the glider, not flying it.

Bill Daniels