Aircraft Componants, Systems, And Control Surfaces

Question 1

Function of trim tabs

Answer 1

Tap can be used to trim out the holding force and ease the task of the pilot

Question 2

Describe empennage

Answer 2

The tail assembly usually includes

• the fixed horizontal stabiliser
• the fixed vertical stabiliser
• and movable control surfaces

Question 3

Explain the centre of gravity

Answer 3

The point of balance of the aircraft, the point through which weight is said to act.

The position of the centre of gravity depends on the weight and position of all individual aircraft parts and the load that it carried.

All aircraft controls act around the centre of gravity

Question 4

Function of elevator

Answer 4

The elevator is a control surface located on the horizontal stabiliser that is Utilised to control the aircraft pitch

Question 5

Function of flaps

Answer 5

Generally used for takeoff and landing. providing greater lift, better aicraft control at slow speed

Question 6

Describe fuselage

Answer 6

Fuselage forms the body of the aircraft to which the wings tail engine and undercarriage are attached

Question 7

Speed brakes

Answer 7

Control services that are primarily to reduce speed rapidly during Landing or manoeuvering

Question 8

Describe the construction of aircraft windows

Answer 8

Constructed by laminating several thin clear polyvinyl butyl plastic sheets between piles of preformed and pre tempered glass layers

Lamination is used for redundancy

Question 9

Slats

Answer 9

Small auxiliary control surface at directs relatively high velocity air into the Boundry layer to re-energise it

Question 10

Describe the function of aileron

Answer 10

Ailerons are used to roll the aircraft around the longitudinal axis

Question 11

Function of the control yoke

Answer 11

Allows the pilot to change The aircraft movement on the lateral and longitudinal axis

Question 12

Describe wings

Answer 12

The wings are designed to generate lift and are exposed to heavy loads in manoeuvres and turbulence well in excess of the total weight of the aircraft

Question 13

Describe the three planes of aircraft movement

Answer 13

Pitch: the nose needs to be raised or lowered on the lateral axis

Roll: the aircraft wings move on the longitudinal axis. Therefore rotating the aircraft on the longitudinal axis

Yaw: The aircraft knows needs to be swung left or right this movement is conducted on the vertical or normal axis

Question 14

Describe the functions of the undercarriage

Answer 14

The undercarriage houses the landing gear which is used to manoeuvre the aircraft and support the aircraft at a convenient height,

the undercarriage also houses weapons bays and absorbs the kinetic energy of landing

Question 15

The function of a Rudder

Answer 15

The rudder is used to control the aircraft in yaw

Question 16

Lift augmentation

Answer 16

With the flap extended the distance between the camber line and the cord line is increased, from the definition of camber the camber of the airflow is now increased therefore so does the coefficient of lift and total lift

Question 17

Split flap

Answer 17

The split flap as the name implies has a movable flap that moves independently of the upper surface of the aerofoil

Question 18

Function of the rudder pedals

Answer 18

Allows the pilot to change the aircraft direction on the vertical axis

Question 19

Leading edge flap

Answer 19

Leading edge flaps are as the name implies a flap fitted to the leading edge, the effect is to increase the camber of the aerofoil thus also the lift