Installation Notes; Installation Overview; Wiring - Rotax 915 iSc 3 A Installation Manual

General The representation of components in this chapter which are not scope of the delivery is
only symbolic. The design shown in this chapter does not represent a specified execution
but should support the understanding of the system.
The final design, the selection and specification of parts according to the respective appli-
cable regulations, the consideration of the system limitations and interface description as
well as the comprehension of the operating limits in every operational state is in the re-
sponsibility of the aircraft manufacturer.
The aircraft manufacturer has to make sure that the operating limits given in the Operators
Manual can be supervised by the pilot. The execution of the installation must allow the op-
eration of the engine according to the Operators Manual.

INSTALLATION OVERVIEW

Figure 13.3: Engine starting circuit

WIRING

The engine block must be connected to the airframe using a properly sized ground strap
for carrying the starter current and to avoid static electricity between the engine and the
airframe.
The minimum cable cross-section for the line from the battery to the starter relay and from
there to the electric starter and for the ground line (start system) depends on the cable
length "I"(= Sum of the supply line and ground line of the electric starter) and has to be cal-
culated according to the following table.
Effectivity: 915 i A Series
Edition 0/Rev. 0
BRP-Rotax
INSTALLATION MANUAL

INSTALLATION NOTES

Starter relay
1
Wiring
2
80–00–00
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December 01 2017