Robotics Asked by Praveen kumar selvaraj on October 3, 2021
I have gone to some of the blade designs and profiles of the blade which suits my requirement. But, once after entering the Theoretical calculation, I was stuck in the determination or the Justification for the Magnitude of Pitch mentioned in the Blade.
Example: I have taken the propeller of size 10 inch and 4.5-inch pitch value, Some blogs suggested to have a pitch of 0.2 times of the propeller dia for stable and efficient flight. But they didn’t reveal how it affected the efficiency or why they stated those values…?
Not long ago I had the same problem of evaluating different blade designs. Well it's not an easy task. I used JavaProp which is a tool for evaluating propeller designs. The author has an phd in aerdynamics so I guess the tool works properly. It allows you to caluclate the efficency depending on the pitch angles, altitude, cruising speed, rpm, motor torque etc.
Answered by Westranger on October 3, 2021
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