Mar 17 1991
From The Space Library
Later in the 1990s, NASA will launch the Satellite Test of the Equivalence Principle (STEP) to compare the inertial and gravitational mass of two objects suspended in orbit. The launch relates to an international effort to study gravity and proposals for locating the National Science Foundation's $211 million Laser Interferometer Gravitational-Wave Observatory. (W Post, Mar 17/91)
Two military contractors, Boeing Helicopters and Bell Helicopter/Textron were test-flying models of the V-22 Osprey for the Marines. Some congressional supporters are promoting the plane for military use as well as civilian flight. The other tilt-technology company, Ishida, based its tilt-wing plane on technology pioneered by LTV Corporation and Canadair from the 1950s through the 1970s. (C Trib, Mar 17/91)
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