Message posted by Vahe Demirjian (Member since 04/28/2022) on November 04, 2023 at 20:59:51 PST:
Weeks ago, I happened to read a post at the Secret Projects Forum mentioning in the 1980s that McDonnell Douglas CEO Sandy McDonnell told Paul Czysz (chief of the X-30/NASP program) in circa 1988 that he spoke to a US Air Force general who stated that the USAF had five classified aircraft, of which one reportedly could fly at Mach 6 and another which was designed to fly much faster (the other three classified aircraft were subsonic, and these included a technology demonstrator first flown by Frank Birk in August 1983, a Northrop "classified test bed" aircraft flown in 1984-1988, and an unmanned Lockheed aircraft which first flew in 1986). Given the conclusions in a 2002 paper by Joseph E. Cates and Bradford Sturtevant regarding the 1991-1992 skyquakes, quellish has raised the possibility that there was a hypersonic air-breathing tech demonstrator flying in the late 1980s.
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