A Ramjet's fuel flow is metered by a hot gas valve prior to injection in the Ramjet Combustor.
The "Coyote" Supersonic Sea Skimming Target (SSST) is the only Ramjet Propulsion System in the U.S. currently operational and in production. Particularly, the SSST uses the VFDR Propulsion System.
The next generation SSST VFDR systems use an advanced VFDR fuel. Both the current State-of-the-Art and Next-Generational Fuel models feature 7-inch dual inlets and can achieve Mach 3.25 at 30,000 feet.
Press release | 10. 23. 2026
L3Harris Technologies has received a three-year contract, valued at up to $60 million, to advance a long-range, maneuverable interceptor for the U.S. Army Combat Capabilities Development Command Aviation & Missile Center Xtended Range Counter-sUAS Missile program.
