PPL » Aircraft Tech Knowledge (A) » Stalling and Spinning

12.68.2

Describe the stalling angle of attack, with reference to:

(a) disruption of streamline flow over the upper surface of the aerofoil;

(b) reduction of lift and increase of drag.

12.68.4

Describe the symptoms of a developing stall.

12.68.6

Explain how:

(a) the stall is associated with a particular angle of attack and not a particular airspeed;

(b) a reduction in angle of attack is critical to recovery.

12.68.8

Explain how the stalling IAS is affected by:

(a) load factor;

(b) aircraft weight;

(c) altitude;

(d) power;

(e) flap extension;

(f) damage, ice, frost, or other contamination of the wings.

12.68.10

Describe the possible consequences of using ailerons near, during and in the recovery from a stall.

12.68.12

Define the term autorotation and the conditions leading to it .

12.68.14

Define a spin, with reference to:

(a) stalled condition of flight;

(b) simultaneous motion about three axes (rolling, pitching, yawing);

(c) high rate of descent at low airspeed;

(d) the difference between a spin and a spiral dive.

12.68.16

State what actions can be taken to avoid a spin.

12.68.18

Explain the ‘standard’ recovery action from a developed spin.