ANALYSIS: America's hypersonic missile revolution beckons [feedly]

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ANALYSIS: America's hypersonic missile revolution beckons
// Flight Global HEADLINES

Long before hitching a ride to the moon aboard Apollo 11, then US Air Force test pilot Neil Armstrong was zipping around in a rocket-powered North American X-15, which to this day remains the fastest manned, winged aircraft ever built. That flight record of Mach 6.72 or 7,274km/h was set by pilot William Pete Knight in 1967.
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