Document Title Document No. Revision
Date Section
Supplement S3 to the AMM CTLS-LSA –
CTLS-LSA with ROTAX 912iS
AF 0480 0011 00 05-Aug-12 71-00-1
Approval Ref.: Approved on the Basis of Manufacturer Self Declaration
CHAPTER 71 – ENGINE
Contents
71-00.1 General
71-00.2 Description
71-00.3 Maintenance Practices
71-00.3.1 Engine Cowlings Removal
71-00.3.2 Engine Mount Inspection
71-00.3.3 Air Induction Inspection
71-00.3.4 Starter Replacement
71-00.3.5 Generator Replacement
71-00.3.6 Other Engine Maintenance
71-00.1 General
This chapter provides description of the engine systems.
71-00.2 Description
The engine of the CTLS-LSA is a standard ROTAX
®
912 iS or iSc engine.
● Note: For simplicity reasons this manual will refer to the ASTM compliant
engine version Rotax 912 iS. Any instructions provided in reference to
this engine automatically applies as well to the otherwise technically
identical Type Certified engine version Rotax 912 iSc, unless explicitly
noted otherwise.
It is a horizontally opposed, four cylinder, fuel injected four stroke engine with central
camshaft pushrod driven overhead valves, liquid-cooled cylinder heads and a ram air
cooling of the cylinders, dry sump, pump-fed lubrication system with integrated pressure
regulator. The propeller is attached to the engine by an integrated gearbox (2.43 : 1
reduction) with a mechanical shock absorber and overload clutch. It is equipped with a
fully redundant electronic engine management system, including fuel injection and
electronic dual characteristic ignition. The engine has an electric starter and two integrated
generators, whereas one is normally used to support the engine, while the second
generator powers the aircraft systems.
The engine is equipped with a closed circuit water cooling system of the cylinder heads
with an expansion tank and overflow bottle.
The oil pump is driven by the camshaft. The oil system incorporates an oil cooler and a oil
tank.
All details of the engine design are provided in the Operator’s Manual OM-912i provided
by the engine manufacturer for the installed engine.
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