11.9 Flight Controls Flashcards
Three main axes of an aircraft
Lateral axis
Longitudinal axis
Vertical axis
Motions around the axes of an aircraft
Pitch
Roll
Yaw
Motion around the lateral axis
Pitch = nose up, nose down
Motion around the longitudinal axis
Roll = wing up, Wong down
Motion around the vertical axis
Yaw = nose left, nose right
Flight controls divided into two groups
Primary flight controls
Secondary flight controls
The primary flight controls
Ailerons
Roll spoilers
Elevators
Rudder
Ailerons consist of
Two ailerons and two sets of roll spoilers used for roll control
Cables must be inspected for
Broken wires
Worn areas
Corrosion
Broken wire on surface in the cable can be detected by
Rubbing a cloth back and forth along the cable
Forces that 1-cable transmission transmits
Pull forces
Most cable transmission systems used in aircrafts
2-cable transmissions
2-cable transmissions use what to transmit force
Quadrants
2 cable transmissions transmit what movement to the cables
Push and pull movements
Three main types of quadrant
Normal quadrants
Single quadrants
Tension regulators
The metal of a cable usually is
Steel
Cable tension regulator ensures
that the Tension in a cable system is kept constant at different temperatures
Cable tension regulator consists of
- Two quadrant halves, mounted on a common axle
- Spring loaded cross head, mounted on a guide
- Pull rods
On warm aircraft what does the cable tension regulator do
Compensates for the increased cable tension
On cold aircraft what does the tension regulator do
Compensates for the reduced cable tension
Cable pulleys are used to
Change the direction of the cable run
Pressure seals are used to maintain
Air tight seal around a cable that passes through a hole in a pressure bulkhead
Fairleads are used to
Guide and support a cable along its routing
Fairleads allow a maximum cable directions change of
3 degrees
