CPU radios - trim vs trim vs sub-trim - Page 3 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 05-13-2006, 10:16 AM   #21
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I am: Bob the Builder
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These are the types of control surfaces and deflections where proper mechanical advantage (i.e. better than 1:1) or leverage comes into play. With these throws, the ONLY way to get the much better than 1:1 is large ATVs.

On rudder where it is pull-pull... you are stuck with exactly 1:1... ATVs around 100% for 45 degrees of throw. In this case, it is not as critical because:

1) Low rates aren't 30%, they are around 55%, so there is more resolution

2) I have 2 x 333 oz-in servos driving the rudder... lotsa power.


(P.S.- One of the pics looks a little wonky... the camera wasn't level. The throwmeter was calibrated correctly though. I'm actually using 35 degrees, not 40... didn't need the extra 5 degrees... plenty of authority... in a 3D flat spin I can almost hold altitude with 2-3 clicks of throttle!!!!) First pic isn't full deflection... it's just so you can see the elevator size.
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