B737-700/800/900 Flight Controls
- The Captain’s control wheel is
connected by cables to the
aileron power control units
(PCUs) through the aileron feel
and centering unit.
- The First Officer’s control wheel is
connected by cables to the spoiler
power control units ( PCUs) through
the spoiler mixer.
- The two control wheels are connected by a
cable drive system which allows actuation of
both ailerons and spoilers by either control
wheel. With total hydraulic power failure the
ailerons can be mechanically positioned by
rotating the pilots' control wheels.
Roll Control
The roll control surfaces consist of hydraulically
powered ailerons and flight spoilers, which are
controlled by rotating either control wheel.
The roll control surfaces consist of hydraulically
powered ailerons and flight spoilers, which are
controlled by rotating either control wheel.
Flight Controls SGR
