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General RC Heli Discussion Discuss general topics on rotary wing aircraft, including construction, Servo's, Gryo's and Stabilizer discussions. Heli Pro Shop

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Old 01-09-2010, 03:51 PM   #1
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Ok have never heard anyone talking about expo on Heli set up. Is it used or not. A very good tool if that is the correct word to use for flying airplanes. How about Heli's?
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Old 01-09-2010, 03:56 PM   #2
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Re: Expo

Used for the same reasons as its used on airplanes..To soften the movements around center stick.Especially good for twitchy smaller helicopters..Im sure there is more to it but thats what i have used it for..
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Old 01-11-2010, 06:26 AM   #3
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Re: Expo

It will not affect your maximum throw rates as using dual rates would. It softens your centers to allow for finer corrections while hovering as stated above. You can use more in the begining while learning to hover and as you progress you can take more out. The flybar weights on the heli should be all the way out as well to make it more stable in a hover. When comfortable move them closer to the center to allow for quicker cyclic throws.
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Old 01-11-2010, 02:01 PM   #4
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Re: Expo

When I was starting and being a newbie...I didn't experiment much with radio settings (thinking I will mess the set-up more). But after reading some good points of how addding (or reducing for that matter) some Expo actually helps you. I tried it slowly with my heli, started taking out some on my aileron and elevator...I find that I don't overcorrect my stick that much and my controls are much more predictable.

As someone posted in the other forums, the function is there for you to use. I suggest you try expeimenting also and adjust it to your liking.

Some like it "hot" in the center stick. But I found out that I just actually like it "warm" .
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Old 01-12-2010, 10:44 AM   #5
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Re: Expo

You also use expo to get a linear throw from a servo. Without expo, you will notice the pushrod moves as if it has negative expo (if using JR radio). I.E. it moves further with the same amount of stick input when around 0deg.
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