Principles of Flight Chapter 3 – Stability and Control
Jan 05, 2016
Principles of Flight
Chapter 3 – Stability and Control
Stability
An Aircraft must be stable in flight in order to perform well
Also we must be able to control the aircrafts movement.
Yaw
Aircraft turns left or right
Controlling - Yaw
Using the rudder pedals the pilot moves the rudder left or right to change the aircrafts direction.
Pitch
Aircrafts noses Up or Down
Controlling - Pitch
Moving the stick forwards/back lifts or lowers the aircrafts nose by generating more or less lift at the tail
It uses Elevators to do this
Roll
Aircraft “twists”
Controlling - Roll
Moving the stick left/right rolls the aircraft by generating more lift on one side.
It does this by moving flaps known as Ailerons
Trimming
When an aircraft pitches involuntarily it needs to be trimmed.
Small flaps mounted on the Elevators called “Trimming tabs” jut out from the elevators to increase the camber.
Aileron and Rudder trimming is the same
Flaps
Flaps increase wing camber and/or area
Flaps
Flaps allow aircraft to fly safely at slow speeds
They are mounted on the inside of the wings and can hinge down to increase lift at slow speeds
Slats
Like flaps at the front of the wingThey slide out of the leading edge and
are used at low speedPositioned on leading edge of the wing