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  #1  
Old 10-17-2017, 04:58 PM
gossend gossend is offline
 
Join Date: Dec 2011
Location: Georgetown, Texas
Posts: 151
Default DUC "almost constant speed" propellor

Anyone have any experience with the DUC ground-adjustable carbon fiber props? They claim almost constant speed performance over a wide speed range. They say they achieve this not through blade flexing, as has been tried before with some success, but "aerodynamically".
I recently saw some inflight test data that seems to back that up.
Not clear how they do it.
Has anyone had experience with it?
Craig, what do you say?
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Dick Gossen
gossend@gmail.com
Flying: EAB RV-12 with G3x Touch
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  #2  
Old 10-20-2017, 07:14 AM
saintlfd saintlfd is offline
 
Join Date: Jun 2013
Location: Argyle, TX
Posts: 6
Default

Check videos from Sting Flight on You Tube; also search the forum SportPilotTalk for the experience of one pilot with the Duc on his Sting Sport.
As I recall, he was favorably impressed.
D
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