Final answer:
The Defuel Override Control is a feature in the 1st and 2nd generation Kovatch R-11 that prevents fuel spill during defueling operations.
Step-by-step explanation:
The Defuel Override Control is a feature present in the 1st and 2nd generation Kovatch R-11 aircraft. It is designed to prevent fuel spill during defueling operations. When the control is engaged, it overrides the normal fueling process and closes the fuel valves to prevent any accidental fuel release.
This control ensures the safety of the aircraft and the personnel involved in defueling by providing an additional layer of protection against fuel spills. It is an important feature that helps prevent environmental damage, fire hazards, and wastage of fuel.
For example, if there is a malfunction in the fueling system or if a human error occurs, the Defuel Override Control will automatically shut off the fuel flow to prevent any fuel spills. This helps maintain the integrity of the aircraft and reduces the risk of accidents and hazards.