The flaps deployment system is linked to the pitot-static system to
prevent flaps deployment at speeds exceeding V
FE
141 km/h
(76 KIAS). At speeds higher than 130 km/h (70 KIAS), the pilot is
notified by the flashing of the FLAPS 0 LED about the approaching
the flaps limit V
FE
.
Flaps emergency control
If an error is detected during the flaps extension or retraction, the
system switches to emergency mode. FLAPS 0 and I will illuminate.
In this mode, the FLAPS 0 button is used for manual retraction, and
the FLAPS I button for extension. The flaps only move while the
respective button is pressed.
Elevator trim tab control
The Trim Tab of the Elevator is controlled by a Ray Allen servo.
It is controlled by three position, centre-sprung switches on the
Side-Sticks.