throttle servo speed?

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f5air · 10-01-2009, 01:00 AM

hi there guys, well i have the hitec 7985 on my 50CC for the throttle, i saw that low stick to middle is a little bit slower than middle to full stick. I have a 10CG radio but i dont have expo or anything onthat channel. Dont remember this kid of things before...maybe is normal. What do you think?

Flatlandman · 10-01-2009, 01:58 AM

What are your end points set at?

exeter_acres · 10-01-2009, 07:28 AM

The servo itself is slower or the throttle response is slower?

airborneSGT · 10-01-2009, 08:54 AM

What does your mechanical setup look like? You want to make sure that is straight as possible before doing any sort of throttle curve or radio mixing.

f5air · 10-01-2009, 04:57 PM

good point...i will check also my end points......one question. Its better to put the servo arma and 90 deg. and the stick at middle? to have almost the same travel?. I think i have my end points very different in both ends.

Flatlandman · 10-01-2009, 11:29 PM

You want the end point to be as close to the same number as you can get ex: +120/ -120. Soem people set them up with diff end point and then adjust the mechanical to make it full open ND CLOSE, TO HAVE A MECHANICAL throttle curve. I Prefer to set up best mechanical setup and then use a throttle curve in the radio if necessary.

Adjust the push rod length and centering to get the end points as close as you can get them if one is off 10 points one way or the other it will be fine as long as both number are above 100.

f5air · 10-02-2009, 12:37 AM

well re check all and rigth now i have 55 up and 60 down. the speed is the same in both ways, before i was getting 95 and 35 thats why it was really different. Also put the middle stick of the throttle and i have 90 deg on the servo arm and engine arm which makes me feel better. BTW i have a DLE55 and the travel of the carburator arm i not huge.

Flatlandman · 10-02-2009, 12:43 AM

Use a shorter servo arm or shorter hole on the servo arm to get those Travel adjustments above 100

f5air · 10-02-2009, 01:18 AM

sounds interesting......that will help on the travel speed?

Flatlandman · 10-02-2009, 01:37 AM

It will give more steps between low throttle and high thottle; aka better throttle resolution and is an overall better setup IMO.

classclown · 10-02-2009, 07:23 AM

I always match the servo horns length to the same length of the throttle arm. Make sure the horn is at center point of the servo (90 degrees) when your throttle stick is centered on the tx. At center stick, your carb butterfly will be in the middle, depending if you've set your throttle rod, or cable right. Match your endpoints accordingly.

exeter_acres · 10-02-2009, 07:37 AM

	Quote: Originally Posted by f5air
	sounds interesting......that will help on the travel speed?

it will help in the resolution.....

with your end points so low, the resolution of the servo will be low....

Pistolera · 10-02-2009, 08:21 AM

	Quote: Originally Posted by f5air
	hi there guys, well i have the hitec 7985 on my 50CC for the throttle, i saw that low stick to middle is a little bit slower than middle to full stick. I have a 10CG radio but i dont have expo or anything onthat channel. Dont remember this kid of things before...maybe is normal. What do you think?

H'mmmm, my lowly 9C has a throttle curve function. You would think the 10CG would as well

Earle

exeter_acres · 10-02-2009, 08:46 AM

I think he means he didn't have those functions set up....

f5air · 10-02-2009, 10:52 AM

yep i have it...but i have the 10cg from about month so im starting to play with it.

Regards,

10-01-2009, 01:00 AM	#1
f5air Fly it....fly it. Join Date: Jun 2009 Location: Texas Posts: 2,530	throttle servo speed? hi there guys, well i have the hitec 7985 on my 50CC for the throttle, i saw that low stick to middle is a little bit slower than middle to full stick. I have a 10CG radio but i dont have expo or anything onthat channel. Dont remember this kid of things before...maybe is normal. What do you think?

10-01-2009, 01:58 AM	#2
Flatlandman Your my boy Blue!!!1 Join Date: Jan 2006 Location: Lexington Kentucky U.S.A. Posts: 4,209	Re: throttle servo speed? What are your end points set at? __________________ Thanx to The Crew Mike B. Jim Z. Ed J. Jim S. Airman Wheels www.jerseymodeler.com lazertoyz.com

10-01-2009, 07:28 AM	#3
exeter_acres Flamingos are everywhere! Join Date: Jan 2006 Location: Johns Creek, GA Age: 44 Posts: 7,158 Awards Showcase Total Awards: 1	Re: throttle servo speed? The servo itself is slower or the throttle response is slower? __________________ EXTREMEFLIGHT R/C Tech support 2011 IMAC Southeast Regional Director/IMAC Sequence Committee / IMAC Judging Instructor *TEAM FUTABA*

10-01-2009, 08:54 AM	#4
airborneSGT Pimpalicious Join Date: May 2006 Location: Germany, BY, Bamberg Age: 30 Posts: 2,136	Re: throttle servo speed? What does your mechanical setup look like? You want to make sure that is straight as possible before doing any sort of throttle curve or radio mixing. __________________ *Performance Aircraft Unlimited* Getting R Done since 81!

10-01-2009, 04:57 PM	#5
f5air Fly it....fly it. Join Date: Jun 2009 Location: Texas Posts: 2,530	Re: throttle servo speed? good point...i will check also my end points......one question. Its better to put the servo arma and 90 deg. and the stick at middle? to have almost the same travel?. I think i have my end points very different in both ends.

10-01-2009, 11:29 PM	#6
Flatlandman Your my boy Blue!!!1 Join Date: Jan 2006 Location: Lexington Kentucky U.S.A. Posts: 4,209	Re: throttle servo speed? You want the end point to be as close to the same number as you can get ex: +120/ -120. Soem people set them up with diff end point and then adjust the mechanical to make it full open ND CLOSE, TO HAVE A MECHANICAL throttle curve. I Prefer to set up best mechanical setup and then use a throttle curve in the radio if necessary. Adjust the push rod length and centering to get the end points as close as you can get them if one is off 10 points one way or the other it will be fine as long as both number are above 100. __________________ Thanx to The Crew Mike B. Jim Z. Ed J. Jim S. Airman Wheels www.jerseymodeler.com lazertoyz.com

10-02-2009, 12:37 AM	#7
f5air Fly it....fly it. Join Date: Jun 2009 Location: Texas Posts: 2,530	Re: throttle servo speed? well re check all and rigth now i have 55 up and 60 down. the speed is the same in both ways, before i was getting 95 and 35 thats why it was really different. Also put the middle stick of the throttle and i have 90 deg on the servo arm and engine arm which makes me feel better. BTW i have a DLE55 and the travel of the carburator arm i not huge.

10-02-2009, 12:43 AM	#8
Flatlandman Your my boy Blue!!!1 Join Date: Jan 2006 Location: Lexington Kentucky U.S.A. Posts: 4,209	Re: throttle servo speed? Use a shorter servo arm or shorter hole on the servo arm to get those Travel adjustments above 100 __________________ Thanx to The Crew Mike B. Jim Z. Ed J. Jim S. Airman Wheels www.jerseymodeler.com lazertoyz.com

10-02-2009, 01:18 AM	#9
f5air Fly it....fly it. Join Date: Jun 2009 Location: Texas Posts: 2,530	Re: throttle servo speed? sounds interesting......that will help on the travel speed?

10-02-2009, 01:37 AM	#10
Flatlandman Your my boy Blue!!!1 Join Date: Jan 2006 Location: Lexington Kentucky U.S.A. Posts: 4,209	Re: throttle servo speed? It will give more steps between low throttle and high thottle; aka better throttle resolution and is an overall better setup IMO. __________________ Thanx to The Crew Mike B. Jim Z. Ed J. Jim S. Airman Wheels www.jerseymodeler.com lazertoyz.com

10-02-2009, 07:23 AM	#11
classclown Bad-ass Super Pooper Join Date: Mar 2006 Age: 44 Posts: 2,200	Re: throttle servo speed? I always match the servo horns length to the same length of the throttle arm. Make sure the horn is at center point of the servo (90 degrees) when your throttle stick is centered on the tx. At center stick, your carb butterfly will be in the middle, depending if you've set your throttle rod, or cable right. Match your endpoints accordingly.

10-02-2009, 08:46 AM	#14
exeter_acres Flamingos are everywhere! Join Date: Jan 2006 Location: Johns Creek, GA Age: 44 Posts: 7,158 Awards Showcase Total Awards: 1	Re: throttle servo speed? I think he means he didn't have those functions set up.... __________________ EXTREMEFLIGHT R/C Tech support 2011 IMAC Southeast Regional Director/IMAC Sequence Committee / IMAC Judging Instructor *TEAM FUTABA*

10-02-2009, 10:52 AM	#15
f5air Fly it....fly it. Join Date: Jun 2009 Location: Texas Posts: 2,530	Re: throttle servo speed? yep i have it...but i have the 10cg from about month so im starting to play with it. Regards,

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