Where are water washes located?

Where are water washes located?

• A. Inlet plenum
• B. Gear box side of the inlet air plane
• C. Nacelle side
• D. Centerline of the engine

Answer: (B)

Water washes deliver a spray of demineralized water into the compressor to remove deposits and restore performance. The ports that carry this wash are placed on the gear box side of the inlet air plane because that position gives direct access to the compressor face and provides a clear path for the spray to enter the core efficiently. Locating them on the inlet plenum, nacelle side, or centerline would make access harder or disrupt the proper spray entry, making gear box side the practical, effective location.

Water washes deliver a spray of demineralized water into the compressor to remove deposits and restore performance. The ports that carry this wash are placed on the gear box side of the inlet air plane because that position gives direct access to the compressor face and provides a clear path for the spray to enter the core efficiently. Locating them on the inlet plenum, nacelle side, or centerline would make access harder or disrupt the proper spray entry, making gear box side the practical, effective location.