When maintaining Morden air plane motors, how often should they generally be lubricated?

Airplane engines should be lubricated regularly according to the manufacturer's recommendations. This typically involves lubricating the engine at regular intervals, such as every 50-100 flight hours or during scheduled maintenance checks. It is important to follow the specific guidelines provided by the manufacturer to ensure proper lubrication and optimal engine performance.

Modern aircraft engines do not require manual lubrication. They have self-contained lubrication systems that automatically lubricate the engine components as needed.