A few weeks ago, before beginning the study on the sustainability of aircraft carriers in the US Navy , Mark Esper, the Secretary of Defense of the United States, publicly questioned the relevance of replacing, with the same budget, an aircraft carrier with a fleet of 100 or 200 hypersonic missiles to ensure the initial defense of Japan or South Korea. Obviously, the idea has gained ground, since during a Webcast with the association of the Air Force Mitchell Institute, Mark Lewis, the director of modernization of the deputy director for innovation Mark Griffin , announced the creation of a “war room” dedicated solely to the rapid and massive entry into service of hypersonic weapons in the American armed forces.
The Pentagon is currently funding 3 families of programs to design, test and put into service hypersonic weapons, depending on whether they are launched from the surface or from an aircraft, and whether they use a rocket engine and a hypersonic glider, or a Scramjet type aerobic engine. For the moment, the aerobic surface launcher family is not the subject of any development, at least in the public sphere. The work is divided between the US Air Force ( ARRW program ), the US Navy (CPS program), the US Army (LRHW program) and Darpa (HAWC and HSW-ab programs), which is currently the only one to develop aerobic programs.
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