The Delta has retractable landing gear and the wings fold up and over the fuselage for easy towing—no trailer required. The engine is a 180 hp Lycoming O-360. Cruise speed is about 170 mph. The windshield extends all the way up over the pilot's head which affords excellent visibility. Airframe construction is largely welded steel truss with a fibreglass skin attached with flush blind rivets. Notice the shape of the upper surface of the fuselage—the fuselage provides significant lift! More than 400 Dyke Delta plans have been sold and there are about 45 flying today with another 15 or so still in active (or semi-active) construction.