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SR-71 Blackbird: World's fastest aircraft
The speed limit of the airplane is determined by its engine temperature. According to a BBC report, the 'reconnaissance aircraft' will clock its fastest speed when the temperature of its engine indicates 427C (800 F).

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SR-71 Blackbird: World's fastest aircraft

3 July 2013

Built with the goal of outpacing any missile launched at it, the SR-71 Blackbird has been the fastest air-breathing, manned aircraft since 1976. Blackbird's unique aerosol made it impossible to be tracked by radar, making it a perfect spy plane. Customised windscreen, special fuel and external fuel tank make it one of the most amazing aircrafts of the modern era.

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