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500 Class Electric Helicopters 500 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 12-01-2008, 05:25 PM   #1 (permalink)
 
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Default $20 MG digital servo?

Would anyone trust to use this servo on their 500? I'm about to start buying parts to build myself one and I really like the price and specs of these servos.

See here:
http://www.graysonhobby.com/catalog/...roducts_id=695
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Old 12-01-2008, 05:38 PM   #2 (permalink)
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I can't speak for the quality, but its about the size of a Hitec HS65, to small to fit a 500
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Old 12-01-2008, 05:47 PM   #3 (permalink)
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to small? what size should i be looking for?
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Old 12-01-2008, 06:00 PM   #4 (permalink)
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The manual lists a number of servos tha will fit. The Futaba 9257 and 9650 will fit as will the metal geared Hitec 5245, although they were imfamous for the case breaking in a crash awile back. Check their size and shop from there.
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Old 12-01-2008, 06:11 PM   #5 (permalink)
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Is that servo I found a proper size for the rex 450? I'm still in limbo about which heli I'm going to buy. If these will fit a 450 I'll probably go with that.
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Old 12-01-2008, 10:29 PM   #6 (permalink)
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Is there any real advantage to MG servos? On smaller helis, the MGs will save the servo. But at this size, it's probably better to let the drive train absorb some of the damage vice transfering it to the servo motor.

Another thing I don't like about MG servos is that they have a bigger backlash than nylon gears.

Just get some 9650s and a 6 or so 9650 gear sets.
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Old 12-02-2008, 12:16 AM   #7 (permalink)
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spend once and save

get 3517s or 3650s if you're going to get the 500

even the case is tough
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Old 12-02-2008, 07:33 AM   #8 (permalink)
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I flew the hitec hs-225mg servos for a long time. They are the same as the 5245 just not digital and they are only $27

http://www3.towerhobbies.com/cgi-bin...&I=LXN667&P=ML
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Old 12-02-2008, 10:09 AM   #9 (permalink)
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Quote:
Originally Posted by xptical View Post
Is there any real advantage to MG servos? On smaller helis, the MGs will save the servo. But at this size, it's probably better to let the drive train absorb some of the damage vice transfering it to the servo motor.

Another thing I don't like about MG servos is that they have a bigger backlash than nylon gears.

Just get some 9650s and a 6 or so 9650 gear sets.
Plastic gears will break on every tip over! Metal gears are definitely the way to go.

I have the MKS 9660 metal gears in my 9650s and they have less backlash than the plastc gears had!
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Old 12-02-2008, 10:54 AM   #10 (permalink)
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Plastic gears will break on every tip over! Metal gears are definitely the way to go.

I have the MKS 9660 metal gears in my 9650s and they have less backlash than the plastc gears had!
I don't agree. Many different opinions on this subject. I think somthing have to give to reduce damage to the servo. Metal gear develop slop and could bend without you noticing. But that's just my opinion.

Why tip over? When i crash, i crash it good . I dont think i have ever tipped over with a cp heli...
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Old 12-02-2008, 12:10 PM   #11 (permalink)
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Why tip over? When i crash, i crash it good . I dont think i have ever tipped over with a cp heli...
Learning autos on the 500.
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Old 12-02-2008, 08:13 PM   #12 (permalink)
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Please click one of the Quick Reply icons in the posts above to activate Quick Reply.
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Old 12-02-2008, 08:56 PM   #13 (permalink)
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Oops, so much for trying to post from a blackberry. I've tipped mine over a couple of times. The big blades really are tricky as the thing spools down - if there is a good gust of wind it really can blow it over.
Hey, Align specs the 500 to run with Hitec 82MGs, which are $20 metal geared servos. I have a set if you want to buy them! And the Align spacers make them a perfect fit too!
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Old 12-03-2008, 03:17 AM   #14 (permalink)
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I got Hitec 82MGs on my cyclic in my 500 and with well over 200 flights, not had a minutes problem with them and can do everything I am capable off, tictocs, inverted circuits, pitch pumping etc, just a pain to get in the frames so just fit them before you put the frames together and no probs

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