Question

Why are compressor washes performed and what methods are commonly used?

a) To increase fuel efficiency
b) To remove dirt and deposits
c) To reduce engine noise
d) To enhance thrust vectoring

Answer 1

Compressor washes are conducted to remove dirt and deposits from jet engines to maintain efficiency and extend engine life, using on-wing or off-wing methods.

Step-by-step explanation:

Compressor washes are performed primarily to remove dirt and deposits from the compressor blades and passages within jet engines. These contaminants can accumulate over time and affect the performance of the engine, leading to decreased efficiency and increased fuel consumption.

Regular cleaning ensures optimal engine performance and longevity. The most common methods for compressor washing include on-wing washing, where the engine remains on the aircraft, and off-wing washing, which is more thorough but requires engine removal. Techniques can vary from using water or water mixed with cleaning agents to the use of specialized equipment for high-pressure washes.