Assertion: spacecraft's speed | /r/HasProperty | reached by crewed powered aircraft
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text: A total of 199 flights were made between 1959 and 1968, resulting in the official world record for the highest speed ever reached by a crewed powered aircraft (current as of 2014 ), and a maximum speed of Mach 6.72, 4,519 miles per hour (7,273 km/h).