Those are pulse detonation engines and occur repeatedly and constantly. Reports are that none exist currently, but I wouldn't listen to that b.s. The F-117 was flying in '77 and the World didn't see it for the first time until ~'92. Who knows what the U.S. government has flying around.
Those are pulse detonation engines and occur repeatedly and constantly. Reports are that none exist currently, but I wouldn't listen to that b.s. The F-117 was flying in '77 and the World didn't see it for the first time until ~'92. Who knows what the U.S. government has flying around.