US: Air Force contemplates advanced VTOL jet
In December 1954, the US Air Force disclosed plans for a novel jet with a massive turbine, enabling vertical takeoff, landing, hovering, 1,500 knots cruise speed, and 15,000 nautical miles range. It raised concerns about defending against potential Soviet versions at high speeds and altitudes.
Background
Background
In December 1954, the US Air Force announced that it was developing an advanced jet aircraft with a turbine engine larger than any before. The concept promised vertical take-off and landing as well as hovering, together with a cruising speed of 1,500 knots and a range of 15,000 nautical miles.
Speculations and Concerns
The Air Force asked openly whether its own air defence system would be able to detect, identify, intercept, and destroy such an aircraft — if the Soviets already had one in service. This applied particularly to speeds of 1,500 knots at altitudes of 65,000 feet. The discussion appeared in the article "The Flying Disc" in the Air Intelligence Digest (volume 7, no. 12).
Significance
The announcement came in an era of intensive VTOL development, such as the Convair XFY-1 Pogo, which demonstrated vertical flight the same year. It fed speculation about unconventional aircraft associated with UFO sightings and underlined fears of technological superiority on the Eastern side. No specific witnesses or physical evidence exist beyond the publication; the location remains unknown.