Flight Instructors Training Procedures _revised AIC_x

1. AIM
DEFINITION
AEROBATICS
SLOW ROLL (AXIAL)
An aeroplane is said to slow roll when, starting and ending in straight and level flight, it is rotated
around its longitudinal axis through 360° whilst maintaining altitude.
WHAT THE INSTRUCTOR IS TO TEACH
i. Discuss the aerodynamic principles involved.
ii. The air exercise briefing:
a. Applicable Procedures and Checklists.
b. Aeroplane handling techniques:- Demonstration and Observation.
c. Considerations of airmanship and engine handling.
d. Similarity of previous exercises.
e. De-briefing after flight.
WHY IT IS BEING TAUGHT
To teach the student how to initiate and maintain a constant rate of roll and how to recover accurately
to straight and level flight, as well as the principles involved in the slow roll and any adverse conditions
that may result, including their corrective action such as:
i. Aileron overbalance.
ii. Aileron snatch.
iii. IAS and aeroplane limitations.
HOW THE EXERCISE APPLIES TO FLYING
i. This is the basic aerobatic manoeuvre in the rolling plane.
ii. It is used in combination with manoeuvres in other planes, i.e. Barrel Roll, Roll off the Top, Half
Roll Pull through.
2. PRINCIPLES INVOLVED
i. NEWTON’S LAWS
ii. PLANE OF MOVEMENT
a. Perfect Roll
iii. RATE OF ROLL
a. Aileron effectiveness and rolling moment – use of rudder.
b. Damping in roll.
c. Effect of forward speed (V) and density altitude.
iv. ADVERSE AILERON YAW
v. RECOVERY
a. To straight and level flight.
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