DG Flugzeugbau GmbH
Flight manual DG-500M
Controls and indicators in the DEI
(digital engine indicator) only in front DEI
37) Ignition switch: on
ignition up=on, down=off
off
To operate the switch, the toggle has to be pulled out first (safety lock
against inadvertent operation). The ignition is only on, if the ignition
switches in both cockpits are in the "on" position.
This means, that for operation from the front seat the ignition switch in the
rear cockpit must be always in the "on" position. For operation from the
rear seat, the ignition switch in the front cockpit must be "on".
In addition to the ignition the ignition switches control the following
functions:
a) ignition "on": 1. automatic extension of the powerplant
2. electric fuel pump "on"
3. starter motor relais unlocked (as soon as
engine is extended)
b) ignition "off": 1. automatic retraction of the powerplant (as
soon as propeller is aligned)
2. electric fuel pump "off"
3. starter motor relais blocked
4. activation of the automatic propellerbrake and
propeller aligning system (Option)
Note: Extend the engine only via the ignition switch if you want to start the
motor immediately following the extension (in the air and on the ground
after landing for taxiing). Otherwise when switching off the ignition the
engine will retract again (propeller aligned).
Issued: April 1997 7.9
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