US military's Arclight to focus on new hypersonic long-range strike weapon The US military is pursuing a new project to develop a weapon that can be launched from the wing of an aircraft and that can exceed Mach 5, it was announced at the Air Force Association in Washington, DC on 30 June. The project,which is managed by the Defense Advanced Research Projects Agency (DARPA), is known as Arclight and is envisioned as a pathway to a new long-range strike weapon
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