 Freiberger Ron's 1

The Freiberger Ron's 1 is an American two-seat homebuilt aerobatic monoplane designed and built by Ronald D. Freiberger, it was highly modified aerobatic variant of the Spezio Tuholer.Freiberger, a design engineer at General Motors and Rose-Hulman graduate flew Ron's 1 in November 1971, it was a braced low-wing monoplane with a welded steel-tube fuselage covered with Ceconite.