SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Ventus-3M „Performance“
FLIGHT MANUAL
March 2019
Revision –
7.3.47
VI
Emergency system for the spindle drive
If the power plant control unit fails or the operating unit in the instrument
panel no longer responds to the pilot's inputs, the power plant can be
extended and retracted using a separate emergency system.
The emergency system is located on the fuse panel below the folding
instrument panel. It consists of a red switch flap which covers the actual
emergency switch (rocker switch) of the emergency system.
To extend and retract the engine with the emergency system, at least the
following main switches and fuses of the electrical system must be switched
on:
o
Power plant main switch
MAIN/SW Power plant
o
Circuit breaker spindle drive
Spindel drive
o
Fuse emergency system
Emergency System
The emergency system is already activated when the red switch flap is
folded up (operating notification
Emergency mode activated
in the operating
unit). The emergency switch, which controls the spindle drive for the
movement of the power plant, is then accessible under the red switch flap:
Toggle switch UP
Power plant extends
Toggle switch NEUTRAL
No power plant movement
Toggle switch DOWN
Power plant retracts
When the power plant is extended or retracted with the emergency switch,
the travel of the spindle drive is no longer limited by the limit switches.
Therefore, it is necessary to estimate visually (rear-view mirror!) whether
the end position of the spindle drive has been reached during extension.
The end position is indicated during extension and retraction at the latest by
the release of the automatic circuit breaker of the spindle drive
Spindle drive
in the cockpit.
