DG Flugzeugbau GmbH
Flight manual DG-500M
Note: To activate the automatic extension it is necessary to switch the switch in
the DEI to "Avionik + engine" prior to switching on the ignition.
Otherwise the automatic system will not be activated (safety interconnection).
Both ignition switches must be in the "on" position, this will be displayed by the
green control light in the DEI.
4.5.6.3 Extension and starting the engine after landing
The same procedure see 4.6.2 may be used after landing for taxying.
Operate the ignition switch after touch down. On very uneven runways
extend the engine after stopping the aircraft to reduce wear of the
extension-retraction unit.
4.5.7 Approach and landing
4.5.7.1 With the engine retracted
It is recommended to dump the waterballast before landing even on
airfields. Dump the ballast before an outlanding in any case. Abeam the
landing point extend the landing gear and set the wing flap to landing
setting (+10° for normal landing, L for short landing).
In calm weather approach with approx.105 km/h (57 kts) (ballast
dumped!). With strong wind fly faster! The very effective Schempp-
Hirth dive brakes make a short landing possible. So a slip is not
necessary as a landing technique.
Caution: In a sideslip with full rudder deflection there is a rudder
control force reversal and the angle of yaw becomes very large.
It is recommended to limit the rudder deflection to about 75% of the full
movement. When recovering from the sideslip by neutralizing the
ailerons the rudder returns by itself to neutral too.
Pilots should investigate the full sideslip at height before using
sideslipping on an approach.
Strong crosswind offers no problem. Do not approach too slowly with
fully extended airbrakes otherwise the aircraft may drop during flare out.
When flaring out keep the airbrake setting you were using, opening them
further may drop the sailplane.
You can land the DG-500M on soft fields with the landing gear
extended, as there is no tendancy of nosing over. During ground roll the
wing flaps may be kept in the landing position.
Issued: April 1997 App. 4.22
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