National Security Journal on MSN
The Mach 6.7 monster: Why the X-15’s speed record still stands in 2026
Summary and Key Points: The X-15 program, spanning 199 flights between 1959 and 1968, pushed the boundaries of aeronautics into the hypersonic realm. -Capable of reaching altitudes of 102,000 feet, ...
National Security Journal on MSN
SR-72 Darkstar: The US Air Force’s new Mach 6 hypersonic bomber?
SR-72 “Darkstar”: The Mach 6 Successor to the SR-71 That Could Also Strike Summary and Key Points: The SR-71 remains the ...
The MD-11's unique design choices impacted cruise and landing speeds.
Interesting Engineering on MSN
World’s first 3D-printed hypersonic airframe clears key vibration trials for Mach 7 speed
Queensland-based Hypersonix Launch Systems has announced the successful completion of vibration testing on its ...
The Aviationist on MSN
PLA Navy's J-15 Reportedly Seen Carrying YJ-15 Anti-Ship Missile for the First Time
The YJ-15 was among the new anti-ship missiles that were revealed during the Sept. 3, 2025, parade in Beijing. China's YJ-15 supersonic Anti-Ship Cruise Missile (ASCM), that was among four new major ...
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