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Cable routing, does adding a pulley change throw rate?

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flyingforx

Active Member
Joined
Nov 7, 2020
Messages
42
In a closed loop aileron system, I see that I may need to add a pulley to allow for clearance of my flap pushrods. I have all my bellcranks in place and prefer to leave them where they are unless I really need to move them. The photo attached may give a better idea, but my main question, is there bad geometry for even, consistent throw on the aileron bellcrank/will I need to modify the shape of the aileron bellcrank so that the arm is perpendicular to the rear (bottom) cable after pulley to prevent "tight spots" where the cable tension changes. Or will it not matter since the interconnect cable will accommodate the change in cable angle. Maybe I'm overthinking this...
 

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