RCU Forums - View Single Post - Contra Rotating Propeller Drive for f3a 2m Pattern Planes
Old 04-19-2015, 09:14 AM
  #1455  
Brenner
 
Join Date: Jul 2007
Location: Bridgman, MI
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I spent yesterday switching props, and I think the 22x20R / 22x18F combination works very well with the Kontronik motor and the V4 Drive.

The Kontronik motor seems to add a lot of speed range, which makes these props much more useable in windy conditions.

According to my ESC log I am pulling a maximum of 87A with these props, and and I'm using about 3000mah for the new AMA Masters pattern, which should be comparable to P15.

See attached for a screenshot of the throttle curve that I'm now using. This curve gives me a very linear response from the Drive. Right now I don't know if the uptick off idle is actually needed, With my V3 Drive, this uptick was about twice as much, and I just kept reducing it until I was happy with the throttle response during stall turns.

Brenner ...

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Last edited by Brenner; 04-19-2015 at 09:17 AM.