Page 2 2
nd
Edition – Rev 0
24-10
POWER GENERATION – DESCRIPTION AND OPERATION
The 20 Amps generator is built in the Rotax 912S engine and its weight is already included in
the engine empty weight.
A generator failure occurrence is shown on the upper/central panel by the lighting of an amber
caution light:
Figure 2. - Generator failure light
Battery
A battery provides the secondary source of DC power.
Two different types of batteries can be installed, depending on the a/c configuration (VFR
DAY/NIGHT).
The battery installed on VFR NIGHT configuration is lead type one ( GILL
TELEDYNE G25) 12V 18Ah in 1 hour.
The battery installed on VFR DAY configuration is a lead type one ( FIAMM
BATTERY PRODUCTS) 12V 19Ah in 20 hours.
The battery is located in the tail cone, right side, wing/fuselage rear attachments zone, in a
dedicated box easily accessible through the inspection cap F9; the box is vented and drained
thorough two hoses in order to avoid likely toxic gasses or fluid accumulate in the aircraft and
damage the adjacent structures.
The battery is connected to the battery bus by a 50 Amp protection breaker.
Near the battery is located the battery relay. It is activated by the Master Switch located on the
lower side of the instrument panel (pilot side): when the switch is set to ON, a ground signal
is applied to energize the battery relay.
In the event of a generator failure, the battery can supply the essential electrical loads.
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