Page 778 - PPL-engelsk 2025
P. 778
Aircraft general knowledge
At the bottom of the gyro instruments is a roll indicator in the form of a transom
bubble. If you are in a turn, you can see whether the roll matches the turning
radius you are in.
If the roll is too small, the ball is thrown sideways from the direction of rotation.
The top two situations in the figure on the next page show examples of this.
You correct for this by “stepping on the ball” (giving rudder to the same side as
the ball is) or increasing the roll in the turn.
In the lower situation you can
see that the spirit level is in the
middle - here the roll is carried
out with correct coordination
of the rudders.
A short film here.
8.12.8.3 Attitude indicator
The attitude indicator is a substitute for the real horizon, when we are flying in
conditions where the natural horizon is hidden. During VFR Night or IFR flight it
is indispensable for the pilot. The gyro horizon replaces the natural horizon.
The gyro rotates around a vertical axis. It is suspended in two gimbal rings, where
the outermost has its longitudinal shafts stored in the instrument housing.
Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 778
