U.S. plays catch-up on hypersonic missiles ---------------------------------------------- In a race to catch up with China and Russia, the U.S. Air Force, Army and Navy are sharing funding and technology to develop a range of hypersonic missile systems ---------------------------------------------- BOOST-GLIDE VEHICLES: Launched to high altitude, glide to their target at Mach 3-20 Tactical Boost Glide (TBG) USAF - Raytheon Technologies Successful launches in 2011, 2017 and March 2020 Common Hypersonic Glide Body (C-HGB) USN / U.S. Army - Sandia National Laboratories Submarine-launched and truck-based INTEGRATED MISSILE SYSTEMS Using Boost-Glide Vehicles (all Lockheed Martin developed) Long-Range Hypersonic Weapon (LRHW) U.S. Army Mobile ground-launched vehicle for C-HGB Transport Erector Launcher B-52 F-15 Operational Fires (OpFires) US Army Ground-launched boost-glide system based on TBG HYPERSONIC CRUISE MISSILES: Powered during flight by attached engine Hypersonic Air-breathing Weapon Concept (HAWC) Scramjet-powered hypersonic cruise missile Northrop Grumman / Lockheed Martin Intermediate Conventional Prompt Strike USN Using C-HGB atop a submarine- launched booster Virginia class nuclear submarine Hypersonic Conventional Strike Weapon (HCSW) USAF Based on C-HGB. Cancelled AGM-183A Air-Launched Rapid Response Weapon (ARRW) USAF Uses TBG, is smaller than HCSW. Twice as many ARRWs could be carried on B-52, or launched singly from the F-15 Instead of carrying oxygen for fuel, scoops it from atmosphere Reduced weight – could be carried on variety of aircraft ---------------------------------------------- Sources: U.S. Army, Flight Global, Lockheed Martin, Bulletin of Atomic Scientists © GRAPHIC NEWS