Peter Duniho wrote:
"G.R. Patterson III" wrote in message
...

To elaborate a bit: Ramapriya's assertion that "the angle of the
wings can't
be varied" is incorrect. The angle of the wings can be and is
varied, by
using the elevator control to adjust the pitch attitude of the
aircraft, and
thus of the wings.

My bad. What I intended saying was that the wings on their own can't be
tilted about, barring use of flaps; they're after all rigid structures.
Cheers,

Ramapriya