Nov 112015
 
Northrop N-63 Convoy Fighter: The Naval VTOL Turboprop Tailsitter Project of 1950

The Northrop N-63 was an unconventional VTOL turboprop tailsitter aircraft proposal submitted to the US Navy’s convoy fighter competition of 1950, which ultimately produced the Convair XFY-1 Pogo and Lockheed XFV-1 Salmon. It was a single-seat high performance fighter designed to protect convoy vessels from attack by enemy aircraft, and for vertical unassisted takeoff from, […]

Aug 162015
 
Goodyear GA-28A/B Convoy Fighter: The Naval VTOL Turboprop Tailsitter Project of 1950

This book provides a detailed overview of the Goodyear Aircraft Corporation GA-28A/B, one of the submissions to the US Navy convoy fighter competition of 1950, which ultimately produced the Convair XFY-1 and Lockheed XFV-1 VTOL aircraft. The GA-28A was a three-quarter scale prototype of the convoy fighter, while the GA-28B was the full scale design […]

May 182011
 
L.H. Leonard "Helicopter-Type Aircraft" VTOL Tailsitters (1939)

Aeronautical history is littered with many unsuccessful VTOL aircraft proposals and prototypes.  Developing a practical military aircraft that takes off and lands vertically while remaining competitive with conventional types in terms of armament, handling, speed, range, payload, etc. has proven to be an enormous challenge, with only a handful of designs achieving production status.  In […]