Why? The added air has the same density of the outside air.

Mike
MU-2


"G.R. Patterson III" wrote in message
...


"Louis L. Perley III" wrote:

Saw an article today about an aircraft that would change it's buoyancy,
so
it would float up like a balloon and then change buoyancy and glide
down.
Interesting stuff, although I doubt we'll see it anytime soon. Is
something
like this even practical?

A similar technique that's been around quite a while is an internal air
bladder
for LTA craft that use helium and hydrogen. Pump the bladder full of air,
and
the buoyancy of the craft changes.

George Patterson
A diplomat is a person who can tell you to go to hell in such a way
that
you look forward to the trip.