05/31/2009. Bart Verhees, a Belgian mechanical engineer, specialized in aeronautics, designed and constructed the Delta in an aim to produce a spacious single-seat aircraft with good performance. Powered by a 65 hp Hirt two-stroke engine, it is controlled by an elevon on each wing, and a rudder, and it has a retractable landing gear. It is of all-aluminum construction.
First flown in 2004, the aircraft was initially registered F-WDHV. A 'W' shown in first position of a French registration indicates a (temporarily) test or delivery registration. After the Delta received its CofA, the 'W' in the registration was replaced by the 'P' (indicating homebuilt).
The aircraft has a maneuvering speed of 127 mph (204 kmh) and is capable of sustaining +6/-6 g. Cruising speed is 155 mph (249 kmh), the speed attained in a dive is 196 mph (315 kmh), while is has a climb of 1,300 ft (396 m)/min.