DG Flugzeugbau GmbH
Flight manual DG-500M
4.5.12 Aerobatics
Permissible only without ballast in the wings and with the engine
retracted
Execute only the approved manoeuvres.
Wing flap setting for all manoeuvres 0°.
Approved manoeuvres
1. Spins
2. Inside Loop Entry Speed 200 km/h (108 kts)
3. Chandelle Entry Speed 200 km/h (108 kts)
4. Lazy Eight Entry Speed 200 km/h (108 kts)
Spins:
Caution: Prolonged spinning is only possible at aft C.G. positions, this
means single seated. It is not necessary to extend the dive brakes during
spin recovery. The DG-500M shows a very large nose down pitch after
leaving the spin. So you have to flare out correspondingly.
With medium and forward C.G. positions prolonged spinning is not
possible. The DG-500 M will terminate the spin by itself after a certain
number of turns dependent on the C.G. position. The nose down pitch
and speed will be high so with these C.G. positions not more than 1 turn
spins should be executed, to avoid high g-loads.
In addition there is a tendency that the spin will turn into a spiral dive
after 1 or 2 turns. Reaching this state you have to recover immediately.
Inducing the spin: (Normal procedure)
Gradually bring the sailplane into a stall. When it starts to burble, pull
the stick back completely and kick in full rudder in the spin direction.
Recovering from the spin:
Apply full rudder opposite against direction of the spin, pause, then ease
stick forward until the rotation ceases, centralize the controls and
carefully pull out of the dive. The ailerons should be kept neutral during
recovery. Height loss during recovery is approx. 100 m (320 ft), the max.
speed is 200 km/h (108 kts).
Issued: April 1997 App. 4.26
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