Introduction to Weight-Shift Control

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Weight-shift control (WSC) aircraft means a powered aircraft with a framed pivoting wing and a fuselage controllable only in pitch and roll by the pilot’s ability to change the aircraft’s center of gravity (CG) with respect to the wing. Flight control of the aircraft depends on the wing’s ability to deform flexibly rather than on the use of control surfaces.


This chapter provides background on the development of the WSC aircraft, its unique characteristics, the requirements for obtaining a WSC license (airman certificate), aeronautical decision-making (ADM), and the unique medical factors required to operate WSC aircraft safely. Further, it is highly recommended that all pilots develop a general understanding of aviation by becoming familiar with the Pilot’s Handbook of Aeronautical Knowledge and the Aeronautical Information Manual (AIM). Listings of other available handbooks can be found on the Federal Aviation Administration (FAA) website at

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