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250 Class Electric Helicopters 250 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 12-04-2017, 11:27 AM   #21 (permalink)
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Quote:
Originally Posted by 2005h4 View Post
Setting up is easy not that difficult on 3gx mrs fbl. But concern is servo’s need to be rotating same direction as Align servo’s. Or I have to disassembled servo, and reversed the few wires by re-soldering it, which I am not comfortable doing it.
I might pay extra, and get the all 3 Align DS416m servo’s on ebay …..
You could get the new replacements that are in the newer 250 kits, DS450 servos, though they are heavier and not cheap at $31 each
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Old 12-04-2017, 12:19 PM   #22 (permalink)
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Originally Posted by QueadlunnRau View Post
You could get the new replacements that are in the newer 250 kits, DS450 servos, though they are heavier and not cheap at $31 each
slightly larger won't fit into current frame.... it is really tight as it is with ds415m...thx though...
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Old 12-04-2017, 12:42 PM   #23 (permalink)
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They fit - they're only .1mm longer. Depth doesn't matter. Plus, they're faster and more torque.

Also, there is no such thing as a left or right servo. You're setup is wrong if the servo is not moving in the right direction. I used the ds76's on a 3gx mrs on on Trex plus 4 years ago. You just have to get the setup correct.
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Old 12-04-2017, 01:18 PM   #24 (permalink)
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just curious... all 3 ds76's?

I only changed one, and the other 2 are Align ds415m. maybe that causes reverse turn....
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Old 12-04-2017, 01:21 PM   #25 (permalink)
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I tried every channel reversed, and just cannot get it to turn right direction. i tried to switch to ail and elev, and does same thing. ds76 turns opposite direction no matter where I put it….
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Old 05-30-2018, 03:41 PM   #26 (permalink)
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Sorry to dig up an older thread but need to know about the ds416 servo's. It appears I can buy just one to make up for the dead one I currently have in my 250. Problem I have is I have heard you always want the cyclic servos to all match. My 250 has the DS415 servos which appear to be discontinued as I cannot find them anywhere. Does anyone know if the 416 is simply a newer version and if I can get away mixing the two servos? Thanks in advance for any input.
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Old 05-30-2018, 03:48 PM   #27 (permalink)
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If the speed of the servo is the same, you can usually get away with having a different servo. I'm in the same boat on one heli, I have a dieing 410 elevator, I might just yank them and get some KSTs though.
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