How fast do the blades move on a helicopter

[Steve Smith]

Most .30 sized helicopters spin their main blades near 1600 rpm for easy flying around, and for sport loops and such closer to 1900 rpm. This calculates to over 200 mph at the blade tips and near 300 lbs of force pulling on the center of the blades. The average .30 engine produces a mean one and a half horsepower.