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X3 Discussion and support for the Gaui X3


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Old 10-08-2019, 03:47 PM   #1 (permalink)
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Default x3 Motor?

My Align 460MX 1800kv motor is petering out, it sounds.
360 blades, 2900 hs. 6 S bats.
What's a good, lower priced motor? This is my "real life sim" heli, one I don't expect to keep too much longer, so not looking for top performance.
The Align motor is $50 and its got enough power (albeit, not a lot) for what I am asking of it, so I'll order one of those again, unless I hear other ideas.

Thx.
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Old 10-08-2019, 06:43 PM   #2 (permalink)
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The Scorpion 2221-2010 is definitely more powerful. The Lynx 2222 1970 kv is also more powerful. If you have the X3L frame pretty much any Trex 500 size motor will work well.
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Old 10-08-2019, 06:49 PM   #3 (permalink)
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The NTM 1800kv motor of HK is a little cheap power house in line with the 460mx. Also ran the 460mx for some time in my X3 when I had one. Really dont need anything bigger unless you smack the crap out of it at 3200~3400hs, even then the ntm and 460mx still kept up fine for me.
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Old 10-22-2019, 08:18 PM   #4 (permalink)
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Just a quick FYI on the Gaui X3 / X3L and motor KV, The 1800KV motors are ok for 320 or maybe 360 blades, but once you get to 360 to 380 blades the 1800kv or higher motors are not the best choice as you will not be able to gear properly for the larger blades(you may end up over geared). Its best to stick with 1500 to 1600kv when running 6S, this will allow for more gearing options in the normal 3D head speed ranges. Stock Gaui X3 motor (GM-302S) is a 1580kv, that is what KV Gaui designed the X3 around.

In conclusion, if you are ever thinking you might run 380 size blades on the Gaui X3, the 1800kv or higher motors will not be the best choice for 6S IMO, stick to 1500-1600, far more gearing options, and far better efficiency since the model will not be over geared.


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Last edited by akamullen; 10-22-2019 at 08:37 PM..
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Old 10-23-2019, 02:29 AM   #5 (permalink)
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I took Dave's advice and got the Xnova XTS 2618-1580KV 10P for My X3 build...R/T 362's and R/T 71's on the tail

13T pinion and it's a monster

If You plan to run on the upside of 2900 the tail blades may need to be smaller
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Old 11-11-2019, 09:24 AM   #6 (permalink)
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Question, I'm building up a 6s x3 and am using a 1580 xnova with 14pinion. All I have is a hobbywing 50 available. Is swinging 380mm blades advised, or should I stick with 360s till I can afford a 60a esc?
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Old 11-11-2019, 11:06 AM   #7 (permalink)
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Quote:
Originally Posted by Diogenes View Post
Question, I'm building up a 6s x3 and am using a 1580 xnova with 14pinion. All I have is a hobbywing 50 available. Is swinging 380mm blades advised, or should I stick with 360s till I can afford a 60a esc?
The stock ESC is 50A...so unless You can really push the X3 it should be fine

380 blades will love the 1580kV motor and the 14T should get You just above 3000
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Old 11-11-2019, 07:11 PM   #8 (permalink)
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Quote:
Originally Posted by Diogenes View Post
Question, I'm building up a 6s x3 and am using a 1580 xnova with 14pinion. All I have is a hobbywing 50 available. Is swinging 380mm blades advised, or should I stick with 360s till I can afford a 60a esc?
+1 It should be fine. The motor isn't rated more than the esc so its the bottleneck. 1100 watts continuous on even 380mm blades is very hard to do even with a very aggressive setup.

Last edited by Yfbb; 11-13-2019 at 08:51 PM..
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Old 11-12-2019, 08:53 AM   #9 (permalink)
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i run 3s on 360s and never overload the esc. you should be fine on 6s
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Old 11-13-2019, 12:49 PM   #10 (permalink)
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Great! I should have it flying by the weekend. I may reduce the pinion by 1 tooth or so however, I am not really looking for a screamer here. I tend to like rpm at around 2800 or so as a rule.
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Old 11-13-2019, 03:34 PM   #11 (permalink)
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I run 380mm blades at 2800 rpm. It flies really nice, and is plenty agile.
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