This early Wasp Rogallo has 19 ft wing booms, an 80 deg nose angle, 5 deg billow, 220 sq ft. 4 of these were built between 1972-1973. The sail material is ripstop nylon. Plans were supplied to other enthusiasts.
'A' Type. Sail area 220 sq ft, nose angle 80 deg billow 5 deg.