The unconventional Sorceress is a single-seat all-metal biplane racer designed and built by Lee Mahoney in America. Characterised by the backward stagger of the wings and the cranked configuration of the lower wing, it is a highly streamlined aeroplane. The
aluminium skin is wax polished to take full advantage of the power provided by the 125 h.p. Lycoming O-290-3 four cylinder engine, and a maximum speed of 202 m.p.h. can be reached in level flight. The wings span a mere 16ft, and their tips are squared-off and fitted with end plates.
In the 1970 Reno races the lower wing was damaged during a landing incident and a further 6in were sawn off each tip. Originally they were unstrutted, but were later modified with a single strut to each bay at the tips.
The Sorceress first flew on August 1, 1970, and in the 1973 Reno National Air Races finished second in its class with an average speed of 184 m.p.h.