Flight Instructors Training Procedures _revised AIC_x

1. AIM
DEFINITION
AEROBATICS
STALL TURN
A stall turn is a method of changing direction through 180°, using the minimum amount of space in the
horizontal plane, during which the speed decreases below the normal straight and level stalling speed.
WHAT THE INSTRUCTOR IS TO TEACH
i. Discuss the aerodynamic principles involved.
ii. The air exercise briefing:
a. Applicable procedures and check lists.
b. Aeroplane handling techniques:- Demonstration and Observation.
c. Consideration of airmanship and engine handling.
d. Similarity to previous exercises.
e. De-briefing after flight.
HOW THE EXERCISE APPLIES TO FLYING
To teach the student to handle the aeroplane at very low airspeed, whilst changing direction through
180°.
WHY IT IS BEING TAUGHT
i. Teaches the student co-ordination.
ii. It is a confidence building manoeuvre.
iii. Handling the aircraft at very low airspeeds.
iv. To teach the student to accurately perform the stall turn manoeuvre.
2. PRINCIPLES INVOLVED
1. Discuss:
i. Aerodynamic factors affecting the stall turn.
ii. Flight below normal straight and level stalling speed.
iii. Pitching to the vertical plane during the approach and recovery phases of the
manoeuvre.
2. Turn – Rudder application:
i. Slipstream.
ii. Torque.
iii. Further effect of rudder.
iv. Gyroscopic effect.
v. Weathercock effect.
vi. Change of direction through 180°.
3. DIVE – Recovery.
4. DISCUSS:
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