Oil System

- Brief Description

- Design and Components

- Propeller Control System

- Warnings, Cautions and Emergencies

- Summary and scores

- Discussion

A dry sump design has a separate oil tank where oil is stored, away from the engine block. A wet sump design where oil is used and then collects in the base of the engine block before being reused.

There are many advantages to using a dry sump including;

- The ability to increase the overall volume of oil available

- Increased oil volume has knock on effects for increased cooling and cleaning

- Allows extra Crankcase room, providing more power

Warnings and cautions include:

- Minimise manoeuvring and excessive throttle movement. This may cause propeller blade angle to be changed, resulting in a change to the amount of oil being diverted away from the engine.

- Land as soon as practical/possible.

- Oil leakages can ignite and cause a loss of the aircraft.

Engine oil emergencies can lead to engine failure if not diagnosed in time or on a lengthy transit back to the LR. Constant awareness of potential forced landing options must be maintained.

If oil temperature drops below the normal temps then this should be monitored. Crews should also monitor the temp trend. The Low Oil Temp checklist is required if there is a significant down trend in temps or if the temp falls below 56C. (STAN RF 19/07 20 Dec 19)

- Brief Description

- Design and Components

- Propeller Oil System

- Warnings, Cautions and Emergencies

- Scores