Basics, Effects of Controls

Chapter 4.1

Objectives

To know the difference between primary and secondary controls

To know the effects of the control surfaces

Primary and Secondary Flight Controls

Primary flight controls

• Control stick or flight stick or yoke

• Rudder pedals and associated rudders

Produce aerodynamic effects

Secondary Flight Controls are devices which produce foreseeable aerodynamic effects

• Change of engine power

• Change of aerodynamic drag

They cause a rotation around the corresponding axis.

The Effects of Flight Controls

As long as the controls remain engaged, the effects too remain constant: the airplane will continue to pivot around the corresponding axis.

The controls need to be returned to their neutral position once the desired position is achieved in order to prevent the plane from continuing to turn.

The primary controls are RATE CONTROLS.

Rudders, Axis of Aircraft

The Three Axis of an Aeroplane

MOCK UP BRIEFING / Training Model

The functions of the commands are discussed and explained at the MOCK-UP of the basic school airplane or in the cockpit of a resting airplane.

Rotational Movement and Determination of the Attitude

Rotational Movement and Determination of the Attitude

Rotational Movement and Determination of the Attitude

Questions

List the different control surfaces and the axis they influence

ELEVATOR / PITCH AXIS
AILERON LONGITUDINAL AXIS
RUDDER VERTICAL AXIS

What is meant by SECONDARY FLIGHT CONTROLS?

A set of aircraft devices whose change generates aerodynamic effects which causes a rotation of the aircraft around an axis. Eg. change in engine power.