Devinder K Yadav 1

Devinder K Yadav 2

Engine Starting System

Light aircraft use a direct-cranking electric starter system. This system consists of a source of: • Electricity • Wiring • Switches • Solenoids to operate the starter • Starter motor.

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Types of Starting Systems

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Engine Starting System

Aircraft have starters that automatically engage and disengage when operated. The starter engages to the crankshaft by gearing mechanism, rotating the engine at a speed that allows the engine to start and maintain operation. Electrical power for starting is usually supplied by an on-board battery, but can also be supplied by external power through an external power receptacle. The starter motor is protected from being driven by the engine through a clutch in the starter drive that allows the engine to run faster than the starter motor.

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Engine Starting System

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Starter gearing & clutch Mechanism

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Engine Starting System

Precautions while starting the Engine: • Make sure there is no one near the propeller. • Wheels should be chocked and the brakes set, to avoid hazards caused by unintentional movement. • Airplane should be in an area where the propeller will not stir up gravel or dust. • Place fire extinguisher in the vicinity of aircraft

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Engine Warm Up

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Engine Warm Up

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Engine Warm Up

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Ground Checks

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Ground Checks

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Ground Checks

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Engine Stopping

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Engine Stopping

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Engine Stopping

Warning: Follow specific procedure as per aircraft operating manual 17

Engine Stopping Backfiring:

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Engine Stopping Afterfiring:

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Engine Stopping Afterfiring:

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Factors Affecting Engine Operation

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Factors Affecting Engine Operation

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Factors Affecting Engine Operation

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Factors Affecting Engine Operation

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Factors Affecting Engine Operation

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Factors Affecting Engine Operation

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Factors Affecting Engine Operation

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Factors Affecting Engine Operation

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Engine Trouble Shooting

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Engine Trouble Shooting

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Engine Trouble Shooting

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Engine Trouble Shooting

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Engine Trouble Shooting

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Engine Trouble Shooting

Warning: Follow aircraft specific procedure (checklist) for action 34