: The SR-72 is designed to reach speeds of Mach 6 (approx. 4,600 mph), which is nearly double the speed of its predecessor, the SR-71 Blackbird.
: Unlike the purely reconnaissance-focused SR-71, the SR-72 is envisioned as a hypersonic strike and intelligence, surveillance, and reconnaissance (ISR) platform.
: It utilizes a Turbine-Based Combined Cycle (TBCC) system. This hybrid engine combines a conventional turbojet for takeoff and low speeds with a scramjet for hypersonic cruise. Project Status as of April 2026
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