FLIGHT CONTROLS (ASM) Flashcards
How many static dischargers are there?
26
How does the elevator work
Mechanically actuated elevators
Electrically positioned pitch trim system
Which direction does the servo tabs move
Proportional with the elevator
Purpose of the servo tabs
Reduce forces required
Which direction do the spring tabs move
Opposite of elevator
Purpose of the spring tabs
At high speeds where aerodynamic load is greater, tab functions in moving elevator
How does the pitch trim system work
Signal sent to HSCU channel which commands motor in HSA
What drives the HSA
2 DC motors
How are the Ailerons linked together
A torque tube and cables that supply mechanical input the hydraulic actuators
Pertaining to the Aileron system, what side is the autopilot servo on. What side is the artificial feel unit.
Autopilot servo - Left side
Artificial feel unit - Right side
When does Rudder Sys 1 automatically shutoff
Above 135KIAS
Purpose of Rudder Hardover Protection
Selects mechanical reversion mode
When does Rudder Hardover Protection occur
Rudder deflected above 5º
Force 130lb opposite rudder deflection
Both engines above 56% N2
How does the flap system move
Signal to FECU which drives FPDU
How are the spoilers commanded and actuated
Electrically commanded and hydraulically actuated
How many spoilers are there
4 total, 2 per wing
What do the outboard spoilers provide
Speed brake/Ground
What do the inboard spoilers provide
Ground
When does the Ground Spoiler automatically deploy
Airplane on ground
Main landing gear running above 25 kt
Thrust levers below 30º
When can you deploy speed brakes
Thrust lever below 50º
Flaps 0 - 9º
