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Throttle Servo????which one.

Old 10-09-2009, 08:24 PM
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William2121
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Default Throttle Servo????which one.

Can anyone suggest a good throttle servo for my H9 Carden Yak54 I have installed 7955TG's on all the control surfaces but need a throttle servo still. I asume a fast servo is what Iam looking for, I am new to Giant Scale Aerobatic planes. I normaly fly smaller size but am switching to Giant Scale thats where my intrests are but it is all new to me please suggest good throttle servo and let me know if speed is important on throttle for 3D like torque rolls and stuff. Thanks William.

Old 10-09-2009, 09:00 PM
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lowslow
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Default RE: Throttle Servo????which one.

I use Futaba 9001 coreless. Most of the feedback I've heard is that you don't want to use a digital on throttle as the vibration can cause problems.
Old 10-09-2009, 11:22 PM
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camss69
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Default RE: Throttle Servo????which one.

I've been using a standard JR DS 821 digital and they work well.
Old 10-10-2009, 06:35 PM
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2robinhood
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Default RE: Throttle Servo????which one.

Use a high speed servo over a standard one.
I when with a Hitec with .08 @ 6V and it made all the differance in the world over a stanard servo.
Stanards work and they are cheap, but a good high speed servo is amazing.
Old 10-10-2009, 09:45 PM
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JOHNS3D
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Default RE: Throttle Servo????which one.



i have 7985....just a few dollars from Tbm.

Old 10-12-2009, 09:50 PM
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lowslow
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Default RE: Throttle Servo????which one.

Awhile back there was a pretty good article from Quique Somenzini about digital servos not being a good choice for throttle use because they don't hold up well to long term vibration. The problem seems they want to center to accurately and over time suffer damage. I'm no expert but imho he is.
Old 10-17-2009, 06:30 PM
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Hooked-On-RC
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Default RE: Throttle Servo????which one.

yet he uses a digital servo for the speed!
Old 10-17-2009, 11:19 PM
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Barry Cazier
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Default RE: Throttle Servo????which one.

I use the Futaba 9001. Excellent speedy servo that center and holds well and is priced good.
That's what I use with success.
Thanks
Barry
Old 10-18-2009, 01:08 AM
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Tired Old Man
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Default RE: Throttle Servo????which one.

Pick a servo that matches the speed and resolution of the flight surfaces as closely as possible. You'll come to appreciate that quickly if you fly 3d. Digital or analog doesn't matter if it matches in those areas. The question of metal or nylon gears often comes up. I've flown both types on gassers for many years and haven't seen an advantage with either one. Karbonite gears on a gasser are not good things. They break.

On a personal level I've been fairly steady with the JR 4721 coreless for several years now. No problems with any part of them.
Old 10-18-2009, 09:23 AM
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JoeAirPort
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Default RE: Throttle Servo????which one.

I'm using Hitec 5985's. They are the updated 5945's. I like the speed and how heavy duty they are. So far so good. I just avoid mini's. Too much vibrations on those little gears.
Old 10-18-2009, 06:33 PM
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Default RE: Throttle Servo????which one.

5625MG fast enough and durable
Old 10-18-2009, 08:06 PM
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lowslow
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Default RE: Throttle Servo????which one.

I also use the Futaba 9001 on the throttle which is a corless servo that if memory serves is what Quique recomended. If your looking for faster throttle response and your radio allows use expo and adjust your throttle curve.
Old 10-18-2009, 08:21 PM
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Default RE: Throttle Servo????which one.


ORIGINAL: camss69

I've been using a standard JR DS 821 digital and they work well.
these are a good choice. I have never found a reason to run metal gear servo's on a throttle, over kill if you ask me. Besides the Engine is only going to spool up so fast any way. no matter how fast your servo is to a certain piont.
Old 10-18-2009, 09:19 PM
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2robinhood
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Default RE: Throttle Servo????which one.


ORIGINAL: jerrysu29


ORIGINAL: camss69

I've been using a standard JR DS 821 digital and they work well.
these are a good choice. I have never found a reason to run metal gear servo's on a throttle, over kill if you ask me. Besides the Engine is only going to spool up so fast any way. no matter how fast your servo is to a certain piont.
The DS821 servos are a good servo, but the speed is .15 sec. @ 6v.
I was using the Futaba S3004 which is .19 sec. @ 6v.
I thought that it was fine till I tried ( what I am using now ) the Hitec HS-6965HB servo.
It is .08 sec. @ 6v and what a differance.
My engine ( DL-100 ) doesn't have any trouble spooling up with a servo at this speed ( .08 ).
The fast speed really, really helps with 3D flying.
Old 11-08-2009, 09:06 AM
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Default RE: Throttle Servo????which one.

Hitec HS-5245MG Metal Gear Servo
Digital programmable mini-size servo. These have programmable digital circuitry. It has high torque and is light in weight. Returns to the same spot every time and can take high vibration. Great for throttle on giant scale or control surfaces on smaller planes.
$48.00 Dollars
Torque: 76 oz-in @ 6v
Transit time: .12 sec @ 6v
Weight: 1.12 oz.
Size: 1.3" x .7" x 1.2

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