What will Make Throttle Less Sensitive - RCCanada - Canada Radio Controlled Hobby Forum
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Old 04-18-2012, 08:33 PM   #1
hifly2104
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What will Make Throttle Less Sensitive


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Ok not sure if anything is possible to set up on a Radio,but thats why we have these forums.Ok I have a quad and when you advance throttle quad rises to lets say 3 feet but then without any input it will drop to about a foot. now if you just advance throttle a minute bit it now climbs to about a six foot height. I am trying to find if I move end points on my throttle if that will make it more or less sensitive. Or if I shorten the end points will this make it less sensitive. Or can you think of anything else I can try.
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Old 04-18-2012, 09:48 PM   #2
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Re: What will Make Throttle Less Sensitive

You can try using the end point but maybe try some expo or change the throttle curve first?
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Old 04-19-2012, 08:13 AM   #3
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Re: What will Make Throttle Less Sensitive

the first thing you should do is arrange the throttle and carb arms (bigger on the carb /smaller on the servo until the servo at full travel can do nothing more than get wide open throttle with the servo travel set as high as it can go) , this will be the best mechanical setup and it will also give the best resolution from the servo as you will be using all the servo steps .once that is correct if you still have a problem you could set up something in your throttle curve /expo.

different engine exhaust and a lower pitch prop may also help.

Roger
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Old 04-19-2012, 12:48 PM   #4
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Re: What will Make Throttle Less Sensitive

Quote:
Originally Posted by RAMJET View Post
the first thing you should do is arrange the throttle and carb arms (bigger on the carb /smaller on the servo until the servo at full travel can do nothing more than get wide open throttle with the servo travel set as high as it can go) , this will be the best mechanical setup and it will also give the best resolution from the servo as you will be using all the servo steps .once that is correct if you still have a problem you could set up something in your throttle curve /expo.

different engine exhaust and a lower pitch prop may also help.

Roger
Good advise... but I believe the original poster is referring to an electric quadcopter......

Depending on the control unit that is being used, it may be something with the controll board... Is there some sort of altitude sensor in it?

A normal quad will likely require 40-60% of total power to take off. My preference would be to set this so it about half stick just to maintain altitude.

There is likely a 3 axis gyro installed as well. control inputs from the gyro will change total output power slightly and will require constant changes in throttle position. This just takes practice and learning how the airframe reacts.
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Old 04-19-2012, 01:42 PM   #5
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Re: What will Make Throttle Less Sensitive

Another case of: big question, not enough info provided.
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Old 04-19-2012, 02:54 PM   #6
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Re: What will Make Throttle Less Sensitive

LOL yeah but who knows ,it may help someone . it's all good .
cheers Roger

does the speed controller have any adjustments , some have settings that may be helpful.
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Old 04-19-2012, 03:22 PM   #7
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Re: What will Make Throttle Less Sensitive

are you using a plane radio with your quad?

if so, one click of the throttle ratchet can make a heli/quad climb or drop more than you expect.

a lot of flyers modify the radio to get rid of the ratchet when flying helis. I cannot speak for other radios but with Futaba, you just open the back and slip a short piece of fuel tubing over the metal spring that works against the serrated ratchet. adjust the screw holding that spring to the tension you like.

this may or may not be your problem, but makes it very easy to make minute stick movements.
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Old 04-19-2012, 05:26 PM   #8
hifly2104
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Re: What will Make Throttle Less Sensitive

Ok thanks for the responses. Chang not sure if my Futaba 9cap has expo on throttle I was trying to help another flier at a previous time his radio had no expo on throttle. Yes it is electric flight. The quad is a 600mm with 30amp mystery esc. turnigy 750kv motors putting out about 200w. Using GWS 9x5 3 blade props and a turnigy or zippy 2200mAh 3s battery. Controller is a Gaui gu-344. There appears to be no ratchet on my throttle it is a smooth slide. Quads are generally operated in Aero mode
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