sentences:  John Worth, associate of Francis Rogallo, exhibited the cable-stayed triangle control frame (which had been exhibited in foot-launch hang gliding in at least 1908 in Breslau) at several scales in stiffened Rogallo-wing kite glider and powered versions.Such mechanical format gave one of the avenues of template for sport use of the boomed Rogallo-wing.Mike Burns in 1962 made Rogallo-winged ski-glider kites in Australia.