BAFFLES are fitted in the fuel tanks to help in keeping the fuel from sloshing around, dampening rapid fuel movement during aircraft manoeuvres (acceleration/deceleration/sideslip/etc). Large aircraft may be fitted with baffle check valves which allow the fuel to flow inboard but not outboard towards the wingtips.
- Why are Baffles important?
Consider a sudden pitch-up into a climb, or a sudden acceleration: Now the fuel will rush backwards, shifting the center of gravity backwards. If this happens suddenly and the fuel starts oscillating, the aircraft would fly a wavy flightpath without pilot input.
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