Most Efficient Rocket Engine Ever Flown Will Enable Affordable Mach 9 Hypersonic Speed
by Brian Wang from NextBigFuture.com on (#70V74)
Venus Aerospace has made the most efficient rocket engines ever flown. They will go from runway to mach 9 hypersonic speed. The Venus Aerospace Stargazer M4 is designed to reach a top speed of Mach 9, which is approximately 6,900 mph. While its cruise speed is planned to be around Mach 4-5, the engine combination ...