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Old 06-04-2019, 10:33 AM   #19
DDW
Guru
 
City: San Francisco
Country: USA
Join Date: Apr 2018
Posts: 958
Take a look at the Autoprop. This is a 3 blade with true pitch, the blades are arranged to adjust their pitch by themselves, due to the offset in the pivot point. They will change their pitch with rpm or load. If you lock the shaft they will feather. For what you are trying to do they might be the solution.
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