Double wow. That figures out to 170 mph, and 6.38 pounds of thrust. All at the cost of only 2.73 HP.

I could very well be persuaded to try that some day, but it's doubtful, as I'm 60 years old and I don't think my head could turn fast enough to keep up. The T-75 should get me close to 100mph, and should provide over 8 pounds of thrust. With a 10 pound bird on grass, that's important.