The rudder provides yaw control
about the airplane’s vertical axis.
The A and B FLT CONTROL switches
control hydraulic shutoff valves for the
rudder and the standby rudder.
about the airplane’s vertical axis.
The A and B FLT CONTROL switches
control hydraulic shutoff valves for the
rudder and the standby rudder.
- Each set of rudder pedals is
mechanically connected by
cables to the input levers of
the main and standby rudder
PCUs.
At speeds above approximately 135 kts, both hydraulic system
A and B pressure are each reduced within the main PCU by
approximately 25% each. This function limits full rudder
authority in flight after takeoff and before landing.
A and B pressure are each reduced within the main PCU by
approximately 25% each. This function limits full rudder
authority in flight after takeoff and before landing.
Flight Controls SGR
B737-700/800/900 Flight Controls - Yaw Control
