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Old Jan 04, 2013, 02:31 PM
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United States, TX, Fort Worth
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Originally Posted by TjW View Post
Just the J3 motor. It slides in slick as snot. The motor leads are a little short. You can either splice in more wire, or bend the pins on the brick up to about a 45 degree angle.
As long as you're messing around up there, though, stick a short piece of the red tubing that comes with a can of WD-40 over the propeller shaft in between the propeller and the large gear.
You'll need a good battery to really get all the benefit. I use the MiniAviation 180. I understand the newer ones are 190s, but my 180s still work well enough I can't justify buying new ones.
Thanks!!...
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Old Jan 04, 2013, 04:55 PM
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Rock Hill, SC
Joined Oct 2002
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Originally Posted by TjW View Post
You'll need a good battery to really get all the benefit. I use the MiniAviation 180. I understand the newer ones are 190s, but my 180s still work well enough I can't justify buying new ones.
If and when you go to replace the 180's, you will find the MiniAviation 190's are really very good. I have used them on my UM P-51 and Pole Cat. The Ember will haul the 190 w/o problems, and provide some decent flight times, well over 20 minutes at or near WOT. FWIW

RD
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Old Jan 17, 2013, 04:37 PM
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Has anyone run the vapor gearbox and prop on their Ember? I have the J-3 motor installed and would like more thrust, like my J-3 motored Vapor has. How does the Ember fly with the lesser down thrust of the Vapor gearbox assy? Has anyone tried this?
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Old Jan 17, 2013, 09:41 PM
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United States, MA, Southbridge
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Originally Posted by t.edwards View Post
Has anyone run the vapor gearbox and prop on their Ember? I have the J-3 motor installed and would like more thrust, like my J-3 motored Vapor has. How does the Ember fly with the lesser down thrust of the Vapor gearbox assy? Has anyone tried this?
I cobbled a 4-Site gearbox and motor on mine and got vertical performance out of it. Weird seeing an Ember hover. I kept the downthrust when I attached it
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Old Jan 17, 2013, 10:52 PM
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Originally Posted by coreman View Post
I cobbled a 4-Site gearbox and motor on mine and got vertical performance out of it. Weird seeing an Ember hover. I kept the downthrust when I attached it
Ember with just a J-3 motor doesn't have enough thrust to hover. Vapor, with it's different gearing, larger diameter prop, and the J-3 motor will.

I'm just wondering how the Ember flies with the Vapor gearboxes' lesser down thrust. The Ember gearbox has a bunch of down thrust.
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Old Jan 18, 2013, 05:32 AM
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Originally Posted by t.edwards View Post
Ember with just a J-3 motor doesn't have enough thrust to hover. Vapor, with it's different gearing, larger diameter prop, and the J-3 motor will.

I'm just wondering how the Ember flies with the Vapor gearboxes' lesser down thrust. The Ember gearbox has a bunch of down thrust.
I would think you would still want the Ember down thrust because that is more a function of the wing camber and AoA.
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Old Jan 18, 2013, 07:48 AM
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Originally Posted by coreman View Post
I would think you would still want the Ember down thrust because that is more a function of the wing camber and AoA.
Maybe. We can both speculate, I was wondering if anyone had tried it. I could also replace the front wing mount with a rear mount to take the AOA out of the wing. I know my Slow Stick flies better that way and needs no down thrust.

The reason for wating to change was for the gearbox and prop, The down thrust change happens to be built into the gearbox.
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Old Jan 19, 2013, 06:34 PM
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Bump. Anyone played with the Ember in terms of thrust angle and the wings' AOA? I still (I started with a slow stick) regularly fly a brushless motored slow stick with equal height front and rear wing mounts, 20 deg dihedral, and a "barn door" rudder that is really fun to fly. The Ember seems it could be a mini equivalent.
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Old Jan 20, 2013, 11:01 AM
TjW
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Mine's fun to fly. But I didn't change the thrust angle or decalage or dihedral. And it's not brushless. And it's a reasonably large rudder, but I wouldn't call it a barn door.

But it's fun to fly.
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Old Feb 03, 2013, 04:07 PM
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Mine's fun to fly.
Mine is too. Both my modded slow stick (great fun in the wind) and my modded Ember, calm or indoor only. I mostly fly bigger stuff but the Ember 2 with a Vapor/ Night Vapor gear box and prop, J-3 motor, is neat. Does require trimming down the Embers' CF fuse to accept the vapor gearbox.
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Old Mar 29, 2013, 08:17 PM
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hey guys. I just acquired an ember 2 brick (found that out after digging around for about half the day) and I was wondering is it possible to add a third servo to the empty channel?
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Old Mar 31, 2013, 07:35 AM
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Kokomo, Indiana
Joined Jun 2008
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Originally Posted by Sabin View Post
hey guys. I just acquired an ember 2 brick (found that out after digging around for about half the day) and I was wondering is it possible to add a third servo to the empty channel?
If you have the 'green dot' Brick then yes additional servos may be added because this is a 6-channel design. Makes for careful soldering onto the circuit board traces where the servo-connectors were left off.
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Old Mar 31, 2013, 07:59 AM
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I R Irv's Avatar
United States, IL, Washington
Joined Nov 2008
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The extra channels on the green dot brick have opposite polarity as the 6400 so be careful when hooking extra servos up.
TODD
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Old Apr 08, 2013, 05:53 AM
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Southlake, TX
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Originally Posted by Sabin View Post
hey guys. I just acquired an ember 2 brick (found that out after digging around for about half the day) and I was wondering is it possible to add a third servo to the empty channel?
Here is the Thread with all you need to know.
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