Courtney displays the Tri-Nado AL
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The Tri-Nado AL has a rotational start speed of 4.7 mph. And a
measured TSR of 12.73 in a turbulent 10 mph wind.
Just in case you do not know what TSR stands for, it is how may
times faster the tips of the blades run in respect to the oncoming
Rotor size - right at 5 foot
Wind - 10 mph times 88 = 880 feet per minute.
Rotor speed - 714 rpm's times 15.7' circumference
= 11209.8 Rotor speed in feet per minute.
TSR - 11209.8 feet per minute rotor speed at the tips divided by 880 wind speed = 12.73 TSR.
Now that is fast rotor!!!!
TSR can vary depending on the day and the density of the wind. This is the results I had on this day at this time. It is intended to be a reference and at least an idea of what this rotor can do.
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