controllability data for use on future space-travel designs. The Dyke Delta flew quite well in tow and in a glide. Over the years, the JD-2 structure was evaluated by the University of Utah and the Wright-Patterson Air Force Base (Ohio) Structural Laboratory. Variants JD-1 Dyke Delta - a small version, with 1+2 seating and fixed landing gear, used to generate and verify delta-wing and tailless-configuration flight characteristics. First flight July 1962; destroyed June 1964. JD-2 Dyke Delta - an updated and enlarged version, with 1+3 seating and retractable landing gear. Debuted at Experimental Aircraft Association Annual Fly-In (Rockford IL) in 1966. Portions of the JD-1 were used in constructing the JD-2. Dyke Delta Stingray – a one-off development by US homebuilder Lowell Borchers, utilizing wood construction for a single-place airplane. It won a trophy at the 1980 EAA Annual Fly-In. Specifications (Dyke JD-2 Delta) See also Notes References External links Dyke Delta Yahoo Group Entry at pilotfriend.com Delta builder's log 1960s United States civil utility aircraft Homebuilt aircraft Delta-wing aircraft Single-engined tractor aircraft Delta Aircraft first flown in 1966