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Old 11-10-2018, 08:11 AM
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Question
Best throttle servos

What is the best Hitec (or other) throttle and choke servo for my new DA 60 set up?
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Old 11-10-2018, 08:35 AM
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any brand of standard digital servo is good for throttle it does not need high torque just a good quality one the grizzz
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Old 11-10-2018, 09:32 AM
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Hitec D-625
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Old 11-10-2018, 10:44 AM
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They're get'n lower mate.....
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This is like asking which is the "best oil"
Many differing opinions -
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Old 11-10-2018, 12:15 PM
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I have no idea if it’s the best but I have used spektrum 6150s on several planes. Don’t overthink it.
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Old 11-10-2018, 12:23 PM
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Choke servo can be most anything, since it requires zero precision. I don't use choke servos any longer, but when I did, they were typically standard $10-20 servos. If you set endpoints properly so that the servo is not straining, nylon gears are fine.

Throttle servo - speed, etc depends on how you will be using it. You don't need a super fast servo aside from 3D and extreme aerobatics. The D625 is reasonably fast, and now reportedly more precise than the HS-625MG. It's a good value.

I like the Hitec 5965MG. It's fast, strong, coreless, and precise. I run A123/LiFe setups so don't need an HV servo. This model is discontinued but showed up regularly NIB on eBay and at some online retailers for $50 or so if you get lucky.
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Old 11-10-2018, 01:37 PM
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Don’t need to spend over $40 for this, even for all metal and 2S lipo compatable.
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Old 12-11-2018, 11:33 PM
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i use MKS 747's for throttle and choke. havent burnt one yet. ive burnt a number of hitecs on throttle and choke. dont think they like the hard end points. my .02C
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Old 12-12-2018, 01:00 PM
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Yep, any standard digital. I actually prefer plastic gear on throttle so it doesn't get sloppy from vibration and start making your idle erratic.


Lately Ive been using Futaba S3072 with good results, even on gas helicopters with governors that can drive the servo much faster than our fingers.....
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Old 12-12-2018, 02:13 PM
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Exactly

No matter how fast you yank the throttle arm back and forth, pretty much anything around .2 is going to be faster than an IC engine can respond to throttle changes.
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Old 12-12-2018, 02:46 PM
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Quote:
Originally Posted by jharkin View Post
Yep, any standard digital. I actually prefer plastic gear on throttle so it doesn't get sloppy from vibration and start making your idle erratic.
If you're MG servo gets sloppy from throttle use, then I would consider trying a different MG servo. I've used the HS-5565MH profusely on my throttles and after nearing 1000 flights, still tight as new.

Quote:
Originally Posted by BarracudaHockey View Post
Exactly

No matter how fast you yank the throttle arm back and forth, pretty much anything around .2 is going to be faster than an IC engine can respond to throttle changes.
0.2 is a little on the slow side, 0.14 seems to be the magical number. Slightly faster isn't going to hurt
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Old 12-12-2018, 03:58 PM
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Yes, that six hundredths of a second makes a huge difference in response.
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Old 12-13-2018, 12:24 PM
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Word up!
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Quote:
Originally Posted by FGNewbie View Post
Yes, that six hundredths of a second makes a huge difference in response.
Gives you that "crispness" that sets your flying apart from rest of the pack
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Old 12-13-2018, 01:47 PM
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Quote:
Originally Posted by FGNewbie View Post
Yes, that six hundredths of a second makes a huge difference in response.
It does actually. A 0.20 servo is very slow on the response and it will be chasing your movements rather than staying with them. An appropriate speed servo can also be important when it comes to tuning. Too slow and you may not be revving the engine quickly enough to hear lean bog or rich burble.
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Old 12-13-2018, 04:31 PM
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That's gonna leave a mark!
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I'm with Tanner on this one, the slower servo is fine for most flying, For 3D flying and flying post stall, the quicker servo absolutely helps to keep the airplane from parking in a trash bag! Been there done that.
Kurt
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