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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).
A normal ejection fraction is between 55 and 75... A low ejection fraction can be improved with medications, a low salt diet, fluid management and regular exercise, explains Heart Rhythm Society. A normal ejection fraction is between 55 and 75...