Definitions

Question 1

Critical speed

Answer 1

The speed, beneath which, after engine failure, control of the aircraft is lost- no rudder controllability

Question 2

Vyse

Answer 2

Single engine best rate of climb speed- blue line

Question 3

Basic weight

Answer 3

The weight of the aircraft structure including engines, unusable fuel and oil

Question 4

Service ceiling

Answer 4

The maximum altitude where the aircraft can maintain a climb rate of 50ft per minute

Question 5

Vmca

Answer 5

The minimum control speed relating to sudden engine failure - at takeoff configuration. A certification, theoretical speed.

Question 6

Absolute ceiling

Answer 6

The maximum altitude whereby rate of climb falls to zero at full power conditions

Question 7

TORA

Answer 7

The length of the runway available for the ground run of an aircraft at takeoff

Question 8

Counter rotating propellers

Answer 8

Propellers which rotate in opposite directions to each other

Be76

Question 9

Contra-rotating propellers

Answer 9

Problems which rotate in same direction as each other

Question 10

ASDA

Answer 10

Accelerate Stop Distance Available

The length of the take off run available plus the stopway (if available) if takeoff is aborted and aircraft brought to a stop

Question 11

Take off Safety Speed Vtoss

Answer 11

Nominal speed to give a safety margin between minimum control speed and stall speed.

Greater of 1.1 x Vmca and 1.2 x stalling speed

The speed above which the aircraft is safely controllable

Question 12

Vso

Answer 12

The stall speed in landing configuration

Question 13

Vs1

Answer 13

Stall speed in clean configuration

Question 14

Vfe

Answer 14

Maximum flap extension speed

Question 15

Vlo

Answer 15

Maximum landing gear operating speed

Question 16

Vle

Answer 16

Maximum gear extension speed

Question 17

Vsse

Answer 17

Single engine safety speed above stall speed and minimum control speed - provide a greater margin of safety for deliberate asymmetric operations and training

Question 18

Red line speed

Answer 18

Signifies Vmca and Vne

Question 19

Critical engine

Answer 19

The engine which creates the largest yawing moment when failed in any given set of conditions

Question 20

Asymmetric blade effect

Answer 20

At reduced power and resulting high angle of attack, the downgoing blade produces more thrust than the upgoing one creating an offset thrust line.

Question 21

Vxse

Answer 21

The single engine speed for best angle of climb

Question 22

Define ‘drift down’

Answer 22

Is the maximum thrust/ minimum rate of descent necessitated by engine failure in a multi engine aeroplane in climb or cruise whereby the aircraft cannot maintain current altitude and maintain terrain clearance

Question 23

What is zero thrust setting?

Answer 23

To simulate feathered prop- typically 13” MAP with aircraft to stay in selected trims

Question 24

ICAO wake turbulence minima - light twin engine aircraft

Answer 24

Light twin following a heavy aircraft- 6NM / 3 mins

Question 25

Define load factor

Answer 25

The ratio of lift to weight