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In the early 1960s, deployment of rocket-powered ejection seats designed for use at supersonic speeds began in such planes as the Convair F-106 Delta Dart. Six pilots have ejected at speeds exceeding 700 knots (1,300 km/h; 810 mph).
It will then take about 15 to 45 minutes (depending on the solar wind speed at impact) before the shock wave passes Earth and the magnetometers start to respond. Image: The arrival of a coronal mass ejection in 2013, the difference in speed is obvious.