The speed brakes consist of flight
spoilers and ground spoilers.
Hydraulic System B powers all eight
flight spoilers, four on the upper
surface of each wing.
Hydraulic system A powers all four
ground spoilers, two on the upper
surface of each wing.
The SPEED BRAKE lever controls the
spoilers. When the SPEED BRAKE
lever is actuated all the spoilers extend
when the airplane is on the ground and
only the flight spoilers extend when the
airplane is in the air.
spoilers and ground spoilers.
Hydraulic System B powers all eight
flight spoilers, four on the upper
surface of each wing.
Hydraulic system A powers all four
ground spoilers, two on the upper
surface of each wing.
The SPEED BRAKE lever controls the
spoilers. When the SPEED BRAKE
lever is actuated all the spoilers extend
when the airplane is on the ground and
only the flight spoilers extend when the
airplane is in the air.
- Compression of any landing gear
strut enables the flight spoilers to
deploy. Compression of the right
main landing gear strut enables
the ground spoilers to deploy.
B737-700/800/900 Flight Controls - Speed Brakes
Flight Controls SGR
