Sling 4 TSi
Section 7
Pilot Operating Handbook
Supplementary
Information
Document Number: DC-POH-001-X-F-3.0
Page | 9-8
Revision: 3.0
Date: 2021/07/14
9.3
Supplement 02/2020 – Airplanes Fitted with an
External Alternator
Information contained in this supplement adds to or replaces
information from the standard Sling 4 TSi Pilot Operating Handbook in
regard only to the specific sections addressed herein. Limitations,
procedures and information not addressed in this supplement remain
as set out in Sling 4 TSi Pilot Operating Handbook.
This supplement provides information necessary for the operation of
an aircraft fitted with an external alternator. An external alternator is
fitted as an option if the output of the integrated generator is
inadequate. Reference should be made to the service instruction (SI-
PAC-001) for Rotax 915 i (Series).
9.3.1
Operational Parameters
The alternating current (AC) output of the external alternator is routed
to its integrated rectifier regulator where it is converted (rectified) and
regulated, to provide direct current (DC) output available to the main
battery. The external alternators charge output is 14.2 to 14.8 V DC..
9.3.2
Operational Instructions
The external alternator is operated with a circuit breaker switch (refer
to external alternator wiring in picture below). Trip indication is by
switch actuation in the OFF (DOWN) position. Refer to paragraph 7.10
for switch layout on the instrument panel.
Ensure that external alternator is switched to the off position before
engine start. It may be switched on after engine start.
The external alternator warning light (labelled Alt 2) comes on when
the alternator is not functioning. The light should illuminate if there is
an external alternator failure.
Refer to paragraph 3.7.4 for procedures following charge system
failure.
