6 sub-systems of an Engine Flashcards
Name 6 sub-systems of an Aircraft Piston Engine?
- Ignition-Start System.
- Induction and Carburettor System.
- Fuel System.
- Lubrication System.
- Exhaust System.
- Cooling System.
What’s the purpose of an Ignition-Start System?
- To start turning the engine by the starter motor.
- To provide a high voltage spark to ignite the fuel-air mixture.
What are the major components of an Ignition-Start System?
- Ignition-Starter Switch.
- Battery and Starter motor.
- Magnetos.
- Spark Plug.
What is the Pilot’s job for Ignition-Start System?
To check and monitor the proper operation of the dual magnetos before and during flight.
What’s the purpose of an Induction and Carburettor System?
- To duct and condition the air drawn in to the Fuel Control unit then to individual Cylinders.
- To mix the fuel with the incoming air to the CCM ratio.
What are the major components of an Induction and Carburettor System?
- Air Filter.
- Duct and Manifolds.
- Fuel Control unit (Carburettor/Injection System).
- Throttle Valve.
- Mixture Control mechanism.
What is the Pilot’s job for Induction and Carburettor System?
- To check the Carburettor Heat is operational before flight.
- To control engine power by the throttle.
- To adjust air-fuel mixture ratio by mixture control.
- To monitor Carburettor Icing and apply heat if necessary.
- To shut down engine using the mixture control (idle-cut-off).
What’s the purpose of a Fuel System?
- To provide for the storage of Fuel.
- To supply an adequate flow of Fuel to the Fuel Control unit.
What are the major components of a Fuel System?
- Fuel Tanks and Vents.
- Fuel Pumps.
- Manual Fuel Primer.
- Fuel Selector and Shut-Off Valves.
What is the Pilot’s job for Fuel System?
- To ensure correct grade of Fuel is being used.
- Always check quantity of Fuel visually.
- Always check for Fuel Contamination before flight.
- To change Fuel Tank appropriately (low-wing Aircraft).
What’s the purpose of a Lubrication System?
- To reduce Friction.
- To aid Engine Cooling.
- To carry away dirt.
What are the major components of a Lubrication System?
- Wet-sump.
- Engine-driven Oil Pump.
- Filter.
- Oil Cooler.
- Temperature Gauge.
- Pressure Gauge.
What is the Pilot’s job for Lubrication System?
- To check Oil level using the dipstick before each flight.
- To monitor Oil Temperature and Pressure during flight.
What’s the purpose of an Exhaust System?
- To release burnt gases – Carbon Dioxide and Monoxide.
- To provide heated air for the Carburettor Heat System and the cabin.
What are the major components of an Exhaust System?
- Muffler/Shrouds.
- Exhaust Risers.
- Tailpipes.
What is the Pilot’s job for Exhaust System?
Treat with caution when feel the smell of exhaust. If a leak is detected Air-Control should be closed.
What’s the purpose of a Cooling System?
- Keeps the Engine within working temperature.
- Engine is cooled by air which can be controlled by Cowl Flaps.
What are the major components of a Cooling System?
- Engine Cowling.
- Baffles.
- Cylinder Fins.
- Cowl Flaps.
What is the Pilot’s job for Cooling System?
- To check Oil Temperature regularly.
- To warm Engine periodically during a descent or a glide.
What does CCM stand for and it’s Ratio?
- Chemically Correct Mixture.
- 1:15.
What’s the ratio for CCM being ‘Too Rich’?
14 or below.
What’s the ratio for CCM being ‘Too Lean’?
16 or above.
What can happen if the CCM is Too Rich and Lean for a period of time?
Engine Failure.
At 3,000ft what should be kept on full?
Fuel Mixture Control.
