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HomeRC & Power✈️Aircraft🚁HelicopterRadio - Servo - Gyro - Gov - Batt › align 2n1 and Futaba 9252
02-24-2010 05:22 PM  10 years ago
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robb

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Vienna, MO

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align 2n1 and Futaba 9252
All,

I have done a search, but found no info. Can I SAFELY run Futaba 9252 servos with an Align 2n1 7.4v system?

I don't want to melt, or otherwise kill, the servos.

Thanks,
Rob
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02-24-2010 05:40 PM  10 years ago
hgh001

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New Zealand

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No, the recommendation by Futaba is exclusively 4.8V.

http://www.gpdealera.com/cgi-bin/wg....pgm?I=FUTM0222

I have seen previous threads about 6V, don't expect the servos to last long.

Have seen 6V installations and it works the only question is for how long? The hobby is too expensive to enjoy it while it last.

Regards,
Heinz
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02-24-2010 05:45 PM  10 years ago
robb

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Vienna, MO

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I have heard people using this setup with good results, but I wonder about the 4.8v issue. I don't want to fry my servos, but if the 2n1 does a good job of regulating the voltage to close to a fully-charged 4.8v pack, then is that harmful?

Thanks,
Rob
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02-24-2010 05:53 PM  10 years ago
hgh001

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New Zealand

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A four cell pack fully charged will give you about 5.2V.

If you could maintain 4.8 - 5.2V you shouldn't have issues at all.

Great servos, robust and reliable, cheap and easy to replace the gears.

I've been using mine on my 50 for more than 2 years on a unregulated 4 cell pack.

Heinz
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02-24-2010 08:56 PM  10 years ago
bart2546

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Canal Winchester, OH - USA

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I have been running a 2n1 regulator and 2 cell lipo with all 9252 servos (except tail) for a little over a year now and I personally have had no issues. Reading further down on that first link to Futaba's website, it states 6v can lead to damaging of a gyro...so do they mean it will damage both their gyro and servo or just that they recommend using the 4.8v if you're using this servo in conjunction with a gyro....

I dunno I have had no issues but that's just one person.
Regards, Brandon Bartolomucci; Team Synergy; Team Scorpion; & Team Bavarian Demon; AMA# L939231
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02-24-2010 09:47 PM  10 years ago
BarracudaHockey

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Jacksonville FL

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Works fine that way and I have probably 300 flights or more with that setup.Andy
AMA 77227
http://www.jaxrc.com
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02-25-2010 04:08 AM  10 years ago
jschenck

rrProfessor

La Vista, NE.

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I have 3 years now with my 9252's being fed by an Align 2-1, one of the original first release 2-1's. No problem.

Check the voltage on a fully charged 4.8V pack, it's about 5.6V. Check the voltage of your Align 2-1 output, it's about 5.8V
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02-25-2010 04:32 AM  10 years ago
alfred

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Australia, New South Wales, Mid North Coast

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Check the voltage on a fully charged 4.8V pack, it's about 5.6V. Check the voltage of your Align 2-1 output, it's about 5.8V
Correct
I have been running them on both, a Stratus and a Fury Expert regulated to 5.8Vdc (using different Regulators).
No issues and I am the careful kind of guy.
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02-25-2010 12:01 PM  10 years ago
robb

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Vienna, MO

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Thanks guys.
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02-25-2010 02:12 PM  10 years ago
Chief_USN

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Chesapeake, VA

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No issues here. Used to run my 9252's on an Arizona reg set at 5.6v and then swapped to the 2in1 when the Arizona got damaged in a crash. Been running it that way for about 2yrs.

Chad
Team HeliProz 12-14
US Navy Chiefs...Unity, Service, & Navigation to the Fleet since 1893
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02-26-2010 12:33 PM  10 years ago
robb

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Vienna, MO

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What about these??

http://www.batteriesamerica.com/newpage8.htm

Safe to use the 6v NiMh Eneloop batteries w/ 9252?
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02-26-2010 12:51 PM  10 years ago
jschenck

rrProfessor

La Vista, NE.

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A fully charged 5 cell pack is about 7V - I would not run that high of a voltage on them. The 6V is OK because it's regulated to be there. Hot off the charger that pack will be quite a bit higher.

Remember with almost all these batteries the voltage that the pack is rated at is pretty much the "stop flying" voltage, not the operating voltage.
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02-26-2010 01:27 PM  10 years ago
robb

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Vienna, MO

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So, would I see ANY performance gain with using my Align 2n1 w/ LiPo vs. 4.8v Eneloop NiMh with 9252 servos? I'm not a 3D pilot (yet) if that matters.
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02-26-2010 02:02 PM  10 years ago
alfred

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Australia, New South Wales, Mid North Coast

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So, would I see ANY performance gain with using my Align 2n1 w/ LiPo vs. 4.8v Eneloop NiMh with 9252 servos? I'm not a 3D pilot (yet) if that matters.
No
I don't think you would.
4.8Vdc is really the rock bottom voltage under very heavy load or just about flat. The Eneloop will mostly be around 5.2 ~ 5.5Vdc
If you use the larger 2000mah pack then they should deliver quite high current without any risk of larger voltage drops.
This will also simplify your setup.
But
You will loose your build-in glow driver ability.
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02-26-2010 02:06 PM  10 years ago
robb

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Vienna, MO

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Thanks. I think I will forgo using the 2n1 and use a NiMh pack. I've always used NiMh, but figured with this new ship (Titan SE), I would join all others using LiPos. I'd rather not mess with regulators, etc. Just more things to fail.

And, I may go with a SwitchGlo or something like that.

Rob
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02-26-2010 02:12 PM  10 years ago
robb

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Vienna, MO

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How many flights would I possibly get with a 2000mah Eneloop NiMh before needing to recharge using 9252 servos and GY401/9254 on the tail?
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02-26-2010 02:18 PM  10 years ago
alfred

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Australia, New South Wales, Mid North Coast

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To be safe using a flybar heli.
I would "3" on a 90 size
and "5" on a 50 size.

That's playing it comfortable safe.
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02-26-2010 02:21 PM  10 years ago
robb

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Vienna, MO

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Thanks. It will be on a Titan SE. 3-4 flights will be good for me, especially if I buy 2 of these batteries.
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02-26-2010 02:47 PM  10 years ago
alfred

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Australia, New South Wales, Mid North Coast

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2 of those will keep you flying all day.
I have got the older R50 SE. Those servos won't see anywhere near the load that they see in a 90.
The current demand will be lower.
I use the 9252's in a Fury Expert and a Stratus.
You will be happy with that setup. It will be a nice simple and reliable system.
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02-26-2010 08:17 PM  10 years ago
Funky Trex

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Westerville, OH - USA

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I ran a 2-1 with 9252s in my Titan 50 for quite a while. I also run a 2-1 with 9252s in my Raptor 90. Works great!!
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HomeRC & Power✈️Aircraft🚁HelicopterRadio - Servo - Gyro - Gov - Batt › align 2n1 and Futaba 9252
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