Why is pitch trim control so important and how does movement of the pilot seat help this situation?
A – Like any airborne vehicle correct attitude provides best performance. With variable weights in a hovercraft, i.e. one operator alone compared with operator and passengers, the pitch(fore & aft) trim can change. Bow down or stern down can increase skirt drag(resistance) and prevent the craft from attaining maximum speed. Continued running in either condition will accelerate wear on the bow or stern skirt. Level pitch trim is achieved by adjustment in fore and aft position of the pilot seat. A pull cord at the base of the joy stick releases locking pins that allow manual movement of the seat.
