Page 482 - PPL-engelsk 2025
P. 482
Principles of flight
Differentiated aileron deflection
The upward aileron moves up more
than the downward aileron moves
down (as shown here on the right,
top).
Frieze aileron
The outer part of the upward aileron
goes down into the free air flow
under the wing and creates form
drag.
Control lines
The control lines are rigged so that
aileron deflection causes the rudder
to also be activated.
The illustrations below and the next page show how the drag is changed by the
above design changes.
The aileron changes,
as shown here, cause
the aircraft to turn to
the desired side due
to the changed drag
at the wing tips.
Flight Theory PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 482
