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Old Dec 12, 2012, 12:11 PM
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dentalpain's Avatar
United States, FL, Marianna
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Ive got 6 3s2200 that would be great doubled up. Maybe Ken can come up with a good wind on the 3615 for a 14x7 or 15x6 to make ~1000W.
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Old Dec 12, 2012, 12:24 PM
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Charlotte, NC
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Originally Posted by FlyWW1 View Post
What 12/12/12 sale?!?
http://www.rcgroups.com/forums/showp...ostcount=10338

Also, register with 3DHS and you'll get their sale emails.
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Old Dec 12, 2012, 12:45 PM
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Originally Posted by turnerm View Post
http://www.rcgroups.com/forums/showp...ostcount=10338

Also, register with 3DHS and you'll get their sale emails.
Thanks! I am registered with them. I wonder why I didn't get it.
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Old Dec 12, 2012, 12:53 PM
3D? I only got two thumbs!
United States, MA
Joined Jul 2012
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Originally Posted by turnerm View Post
The Motrofly 3615-750 is what you're looking for. It's perfect on 4s with a 14x7 prop.

As for servos - yes, the 5085's will be awesome. I'm running the 85's and they are fine but I'll eventually upgrade to the 5085's. There are other servo choices out there but IMHO there's no need to look elsewhere if you're planning on getting the 5085's. You'll definitely want the Dubro arms you referenced.
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Originally Posted by ryan_m View Post
+1. Perfect setup.
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Originally Posted by losifanatic View Post
Agreed
Thanks guys! Order placed. I probably won't get to fly this until next spring, but that will let me take my time and do everything right with the build.
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Old Dec 12, 2012, 03:19 PM
I fly, therefore, I crash!!!
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San Jose, CA
Joined Jan 2008
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Originally Posted by FlyWW1 View Post
Thanks! I am registered with them. I wonder why I didn't get it.
Ditto!!

SteveT
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Old Dec 12, 2012, 03:32 PM
Grumpy old git.. Who me?
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Aberdeen
Joined Mar 2006
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Originally Posted by dentalpain View Post
Ive got 6 3s2200 that would be great doubled up. Maybe Ken can come up with a good wind on the 3615 for a 14x7 or 15x6 to make ~1000W.
About 480kv would be the ticket. I've run one of the cheapo Turnigy 3040A motors on 6s and it rocks in a model of this size, awsome power. Though the Turnigy has tons of power i've got my doubt about it's longevity in a 3D model but a 3615 with a similar wind would be awesome.

Here's the numbers:
1060W
45.4A
23.2V
8239RPM
calculated thrust: 4kg (8.8lb)

My set up:
2 x Gens Ace 3s, 2200mAh, 30c in series
Caste Ice 50 ESC
Turnigy Air 3040A
Xoar 15x7


Ideally for 3D you would want smaller batteries than 2200mAh though, two of them comes in a bit heavy (360g or so). 2 x 3s, 1800mAh would be ideal.
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Old Dec 12, 2012, 03:46 PM
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United States, AK, Anchorage
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I think losi has a video with a porky 51... 3s 1800 would be ideal at around 300g of battery, but 6s will rock on this plane.
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Old Dec 12, 2012, 05:10 PM
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United States, NC, Hertford
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Yeah l had a 450gram battery in mine for a while.

I have ran a 460kv 3615 too. Ran it on 2 3s 1800s. Had it on a 15x7. Great power. I would try to get a 480ish kv if you want to use a 14x7.
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Old Dec 12, 2012, 05:47 PM
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Originally Posted by losifanatic View Post
Yeah l had a 450gram battery in mine for a while.

I have ran a 460kv 3615 too. Ran it on 2 3s 1800s. Had it on a 15x7. Great power. I would try to get a 480ish kv if you want to use a 14x7.
but will it not be too much stress on such a small batteries?? i tried 800kv hacker on 6s with 11x5 prop... it was around 1000w at 30-something A, but batteries was sagging like mad...
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Old Dec 12, 2012, 06:33 PM
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Had no sagging issues. It only pulled a little over 40 amps. That's nothing for a Hyperion 35c 1800
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Old Dec 12, 2012, 07:19 PM
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wouldn't the draw be cut in half with the two batteries... 20A from each for a total of 40A? If thats the case 20/1.8=11.1C per battery. Even 40A is only 22.2C for a 1800mAh battery
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Old Dec 12, 2012, 07:37 PM
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No still 40 from both. The 43 amps is peak and it drops from there so again not an issue.
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Old Dec 12, 2012, 08:40 PM
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Ok... I stand corrected. But still shouldn't be a issue with true rated 25C or better batteries.
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Old Dec 12, 2012, 08:47 PM
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Correct
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Old Dec 12, 2012, 09:22 PM
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United States, FL, Marianna
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ordered a orange 51 (basically free shipping) and 4x hitec 5085mgs from amazon for $120. I guess 12/12/12 is becoming the new black friday.
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