Microlight Flight Lessons

Exercise 10A Slow Flight Aim To become familiar with the feel of the aircraft in slow flight just above the stall speed, and to recognise the symptoms of the incipient stall. Also to restore the air- craft to safe flight before the stall occurs.

Stall and stall speed In steady level flight, as airspeed is reduced angle of attack will also increase In steady level flight, as airspeed is reduced angle of attack will also increase This will happen whenever the airspeed is reduced, regardless of whether the aircraft is level or gliding This will happen whenever the airspeed is reduced, regardless of whether the aircraft is level or gliding

If flown too slowly the angle of attack will exceed the critical angle and the air flow will stall Stalled flow Controlled flight is not possible below this critical speed/angle

Indications of slow flight VS 5

In a turn

The Incipient Stall Last warning of the approaching stall

Airmanship Pre stall check Pre stall check H.A.S.E.LL H.A.S.E.LL H – Height min 1000ft agl for exercise H – Height min 1000ft agl for exercise A – Airframe secure A – Airframe secure S – Security straps, Helmets, Loose articles S – Security straps, Helmets, Loose articles E – Engine- Temp E – Engine- Temp L – Location – Airspace, Drift, Habitation. L – Location – Airspace, Drift, Habitation. Lookout – Lookout – Clearing turn. Look above and below Lookout – Lookout – Clearing turn. Look above and below This check should be repeated once every 3 to 4 minutes or more often in poor visibility This check should be repeated once every 3 to 4 minutes or more often in poor visibility