Flight Controls Flashcards
What are the three axes of flight?
- Longitudinal (roll)
- Vertical (yaw)
- Latitudinal (pitch)
What are the two kinds of flight controls?
- Primary
- Secondary
How are all of the flight controls operated?
Manually
What are the primary flight controls?
- Ailerons
- Elevator
- Rudder
What are the secondary flight controls?
- Aileron trim surfaces (roll)
- Elevator trim tab (pitch)
- Rudder trim tab (yaw)
- Trim Aid Device (TAD)
How are the secondary flight controls operated and controlled?
Electromechanically
What are the components of the aileron control system?
- Left and right aileron
- Two control sticks
- Interconnect tubes
- Push-pull rods
- Bellcranks
Who adjusts the aileron trim tab?
Maintenance personnel only
What are the components of the elevator system?
- Elevator
- Two control sticks
- Push-pull rods
- Interconnect tube
- Bellcranks
- Elevator cables
- Downsprings
- Bobweight
What is the bobweight used for?
Provides extra weight to give a heavier stick force whenever G-loading is increased. This helps enhance control feedback to help prevent overstressing
What are the components of the rudder system?
- Rudder
- Two control sticks
- Two sets of rudder pedals
- Rudder cables
- Pulleys
- Bellcranks
- Tie rods
- Centering springs
What does a properly trimmed aircraft do?
Greatly reduce pilot workload and fatigue
Who has priority in the event of conflicting trim inputs?
Rear cockpit
What happens when the trim interrupt button is pressed and held?
- Trim disconnects
- TRIM OFF annunciator illuminates
- TAD OFF annunciator illuminates
What happens when the trim interrupt button is released?
- Power is restored to the trim actuators
- TAD OFF annunciator remains illuminated
- TAD will remain disengaged
What provides power to the aileron/elevator trim system?
AIL/EL TRIM circuit breaker on the battery bus circuit breaker panel
What provides power to the rudder trim system?
RUD TRIM circuit breaker on the battery bus circuit breaker panel
What is the purpose of the Trim Aid Device (TAD)?
Assist the pilot in maintaining directional trim, reduce out-of-trim rudder forces, and maintain coordinated flight
The computer calculates inputs to rudder trim for TAD based on what?
- Pitch rate
- Altitude
- Airspeed
- Engine torque
What is required in addition to the TAD system during flight?
Pilot trim inputs
What does TAD do weight on wheels and
Sets the rudder trim to takeoff position
What controls the TAD system?
The TRIM AID switch
What happens to the TRIM AID switch when the trim interrupt button is used?
It turns to the OFF position
How would you restore TAD after using the trim interrupt switch?
Move the TAD switch back to TRIM AID
