there is 60 to 75 power strokes per second, 450 per min
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Strokes 50 strokes a minute is recommended when using low tungsten blades, and 60 strokes a minute is recommended when using high speed steel blades.
80.6666667 feet per second
44 feet per second = 30 mph
146.6 feet per second.
3,000 feet per second = 2,045.45 mph