First free flight hover of the Curtiss-Wright X-100
Wednesday, September 30, 1959
The Curtiss-Wright X-100 was built to demonstrate the propeller 'radial force' concept as a means of providing lift. The aircraft made its first transition beween vertical and horizontal flight in April 1960.
Note: Only the month and year of this milestone are known.
Source: AHS V/STOL Wheel entry for this aircraft