the jc.6 was an all-metal cantilever monoplane with twin booms and two vertical tail surfaces joined by a single horizontal tailplane. it was powered by a rear-mounted de havilland gipsy queen six-cylinder aero engine fitted between the twin booms and driving a pusher propeller. the two-seat tandem cockpit was covered with a large glazed canopy. the jc.6 had a tricycle landing gear and the mainplane was fitted with slots and flaps to give short takeoff and landing performance. during the evaluation trials the rival auster aop.6 had a better performance and was ordered into production. two further heston jc.6s, serials "vl531" and "vl532", were not built.