If throttle is advanced after temperature reaches 15 C, the engine can continue to be operated at climb thrust or above as long as oil temperature remains at or above what value?

If throttle is advanced after temperature reaches 15 C, the engine can continue to be operated at climb thrust or above as long as oil temperature remains at or above what value?

• A. -5 C
• B. 0 C
• C. 10 C
• D. 5 C

Answer: (D)

The main idea is protecting the engine by making sure lubrication is reliable before increasing power. When you advance the throttle to climb thrust, the engine oil needs to be warm enough so its viscosity is right and it can circulate quickly to lubricate bearings and gears. If the oil is too cold, thick oil can cause excessive friction, reduced lubrication efficiency, and potential damage at higher thrust levels. The specification sets a minimum oil temperature of 5 C to allow climb thrust or higher to be held safely. Once the oil temperature is at or above 5 C, you can maintain climb thrust without risking lubrication-related damage.

The main idea is protecting the engine by making sure lubrication is reliable before increasing power. When you advance the throttle to climb thrust, the engine oil needs to be warm enough so its viscosity is right and it can circulate quickly to lubricate bearings and gears. If the oil is too cold, thick oil can cause excessive friction, reduced lubrication efficiency, and potential damage at higher thrust levels. The specification sets a minimum oil temperature of 5 C to allow climb thrust or higher to be held safely. Once the oil temperature is at or above 5 C, you can maintain climb thrust without risking lubrication-related damage.