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Old 09-25-2012, 11:25 AM
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sd YAK 35% (dle-111) servos

I know this might sound rusty but,

I just bought a used SD YAK 35% with a dle-111 engine.

Can I use the following servos:

savox SC-0251 servos on elevator (2) and aileron (4). Each is 16 kg torque
One JR 8711 (29 kg torque) for rudder

specs for savox sc-0251:

Modulation: Digital
Torque: 6.0V: 222.1 oz-in (15.99 kg-cm)
Speed: 6.0V: 0.18 sec/60
Weight: 2.15 oz (61.0 g)
Dimensions: Length:1.60 in (40.6 mm)
Width:0.79 in (20.1 mm)
Height:1.66 in (42.2 mm)
Motor Type: Brushed
Gear Type: Metal
Rotation/Support: Dual Bearings




Would this be sufficient?

Thanks in advance!
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Old 09-25-2012, 11:46 AM
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Should be ok, all depends on the style of flying you do....runing a123 batteries?
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Old 09-25-2012, 11:57 AM
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Originally Posted by rcmergler View Post
Should be ok, all depends on the style of flying you do....runing a123 batteries?
running 2 5200 li-ion fromeco batteries. I guess I need a regulator ?!

Should this be ok for 3D flying?

Thanks,
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Old 09-25-2012, 12:06 PM
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No reason why not. These are the same power as earlier JR8411's and they were fine for that same job but there are better servos for a little more in the Savox range if your wallet can stretch to it. The 0251's do get a little loose over time as the gears are not hardened steel but brass same as the old JR's. If you fly a lot you will eventually need to replace the gears so buying something that already has better gears from steel or titanium would save you money in the long run. Spektrum 6030 or the Savox equivalent would be all you ever need for speed and power. Good gear material also.
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Last edited by BRBR; 09-25-2012 at 12:12 PM.
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Old 09-25-2012, 12:17 PM
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Originally Posted by BRBR View Post
No reason why not. These are the same power as earlier JR8411's and they were fine for that same job but there are better servos for a little more in the Savox range if your wallet can stretch to it. The 0251's do get a little loose over time as the gears are not hardened steel but brass same as the old JR's. If you fly a lot you will eventually need to replace the gears so buying something that already has better gears from steel or titanium would save you money in the long run. Spektrum 6030 or the Savox equivalent would be all you ever need for speed and power. Good gear material also.
Thanks for the advice.

Sorry I made a mistake in the earlier post about the battery type.

They are 2 2400 fromeco batteries (lithium phosphate batteries) I am still trying to find more info about them. They guy who sold me the plane told me they are supposed to be knew but I could not find them at the fromeco site.
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Old 09-25-2012, 12:41 PM
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Not familiar with fromeco products but if they are lipo's you can either by HV servos or use a regulator to reduce voltage down to 6v. On a personal note i would buy new batteries if they are second hand as it sounds to me like they were bought with the plane as a complete package. If so installing something new would be better than running the model on trust taken from a sale if what you have is now obsolete. The same approach would apply to going over the entire model carefully and its respective equipment. I have the attitude of dont trust what your told at a sale, find out if its OK for yourself.
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Old 09-25-2012, 07:29 PM
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i have used the Savox 0251 on a 50cc and loved them a little slower than I like but they worked well.. I am about to pull the 7955 out of my pilot 50cc yak... and put in sc0251 in it and put my 7955 in my 100cc yak
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Old 09-25-2012, 09:25 PM
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whats the spectrum 6030 in the align line and the other lines? ya know same servo different tag.
anyone?
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Old 09-27-2012, 02:31 PM
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found this guy who is using them on his 37% sbach,


inside fuse - YouTube
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