"A speech given at the International UFO Congress, in Laughlin, Nevada in 1998 by Edgar Rothschild Fouche, (an engineer who claims to have worked at Area 51), suggests that the Black Triangle is a Top Secret, experimental, U.S. Air Force vehicle known as the TR-3B, code named "Astra". The TR-3B is supposed to be a 600 feet wide (180 m), triangular aerospace vehicle that utilizes a nuclear reactor to generate an intense magnetic field that negates Earth's gravitational forces on the mass of the vehicle by 89% rendering it extremely lightweight. It also manipulates this field for propulsion and can maneuver on the spot, vertically and horizontally, at incredible speeds up to Mach 9, and climb to an altitude of 120,000 feet."TR-3B The Black Triangle UFO Papercraft
