FLIGHT CONTROL & TRIM Flashcards
1
Q
Dual Flight Control
A
- standard equipment on a/c
- controls actuate the control surfaces using cables
2
Q
Empennage
A
- horizontal tail surface (stabilator) is all moveable
- slab type w/ anti-servo tab mounted on trailing edge (makes the controls feel heavier & increases stability)
- vertical tail has a rudder (rudder trim & anti-servo tab)
3
Q
Ailerons
A
- fries-type with some differential characteristics
4
Q
Frise type ailerons
A
- aileron being raised pivots on an offset hinge
- leading edge of aileron will be projected into the airflow
- creates parasite drag
- helps equalize drag created by lower aileron & counteracts adverse yaw
- form a slot for lowered aileron for smooth airflow
5
Q
Differential ailerons
A
- aileron being raised travels upward a greater distance than lowered
- increase in drag on lowered wing
- counteracts adverse yaw
6
Q
Adverse yaw
A
- tendency of the a/c to yaw in the opposite direction of the roll
7
Q
How do the flight controls operate
A
- gears, chains, cables, pulleys, bell cranks, pushrods & counterweights
8
Q
Stabilator & rudder anti-servo
A
- will move in the same direction as the control surface when deflected
9
Q
Effects of anti-servo
A
- increases AOA of control surface (more effective control surface)
- increases pilot feedback (harder to move)
- increases stability, relative wind forcing control surface back to neutral
10
Q
Flaps
A
- plain flaps
- extended & retracted using a manual lever in the cockpit
- extended using control cables & pushrods
- 0,10, 25, & 40
- spring-loaded to return to 0
11
Q
Max flap speed
A
- 111 KIAS
