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Old Dec 24, 2005, 05:05 PM
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France
Joined May 2005
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Discussion
9 motors 30g with stats, where is the best ?

Hello
I'm looking for a 30g outrunner
I find this :

HiModel A2406-32T KV1150 TP Series Outrunner Brushless Motor
KV 1150 33g 15$

http://www.himodel.com/en/rc_hobby/electric_1224.php
APC10*47SF 4300RPM 7.2V 6.8A 310g

2207 DIY Brushless Motor
KV ?? 32.5g 19$

http://shop.eflypower.com/product_in...roducts_id=564
8x6SF 2S 5A 4900RPM
Stats :
http://www.rcgroups.com/forums/showthread.php?t=332739

Volare 2815M
KV 1100 33g 35$

http://shop.eflypower.com/product_in...roducts_id=571
2 cell 8x4 7100 RPM 3.7A
2 cel 8x6 6100 RPM 5.4A

2 cell = 7.4V ??
stats :
http://www.eflypower.com/modules/new...5#forumpost505


MP Jet Outrunner Brushless Motors AC 22/7-45D
KV ?? 26g 37$

http://www.hobby-lobby.com/brushless-mpjet.htm#AC


A20-34S - 27mm Outrunner BL motor (1500kv)
KV 1500 28g 37$

http://www.aero-nuts.com/product_inf...roducts_id=258
EP7035 7.72v 4.70A 268g


MicroDAN 2505 3D Series
KV 1030 34g 55$

http://www.e-foamies.com/Brushless/M...oduct=MD25053D
APC9*4.7SF 6.8V 5.3A 313g !!
stats :
http://www.rcgroups.com/forums/showthread.php?t=346373


HYPERION Z-2205 46
30g 55$

http://www.aircraft-world.com/shopexd.asp?id=2796
GWS9x4.7SF 6.8V 6.7A 5295RPM

AXI 2204/54
KV 1380 24.5g 66$

http://www.hobby-lobby.com/brushless-axi2204.htm
APC7x4SF 7.2V 212g 4.7A
GWS8x4HD 6.8v 240g 4.75A

stats :
http://www.flyingmodels.org/motortes...xi_2204-54.htm
http://www.rcgroups.com/forums/showthread.php?t=342078
http://www.rcgroups.com/forums/attac...hmentid=630768

Moteurs Donuts-Models 2C/24/280
KV 1380 24.5g 74$

http://www.donuts-models.com/pages/m...donutspag.html
9x4.7 2S 330g

so, where is the best (quality/price)

FRED
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Old Dec 24, 2005, 11:31 PM
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I've got a couple of Microdans, strong and smooth, they get my vote!
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Old Dec 25, 2005, 02:01 AM
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You missed a couple... at least

Little Screamers

Custon CDrom

Larry
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Old Dec 25, 2005, 08:59 AM
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Edmonds Wa. (Seattle)
Joined Nov 2003
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Quote:
Originally Posted by Larry3215
You missed a couple... at least

Little Screamers

Custon CDrom

Larry

Ya I am still around!

Scott
littlescreamers.com

23g 12a $49.99
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Old Dec 25, 2005, 05:16 PM
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Will turn Larger Props, cause its 25mm, you know
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Old Dec 25, 2005, 05:16 PM
Flying motor mount master
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San Jose, California, United States
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It's all out war!!!
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Old Dec 25, 2005, 05:49 PM
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Toronto (Don Mills), Canada
Joined Dec 2002
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If weight is important, the Axi is the lightest motor in your list. It is also a proven performer in Shockie style planes.
My non-Lexan Little Screamer with a mount weighs exactly the same as an AXI.
The AXI is a lot quieter than the aptly named Screamer.
Pat Mackenzie
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Old Dec 26, 2005, 06:24 AM
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France
Joined May 2005
26 Posts
ok
there are 22mm and 25mm
there are 9 and 12 tooth stator

the best (for indoor flying, slow with big thrust) is 12 tooth and 25mm ?

I 'm not sure if Hyperrion is a 12 tooth ?

FRED
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Old Dec 26, 2005, 07:55 AM
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Toronto (Don Mills), Canada
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AFAIK, the Hyperion is a 12 slot LRK motor like the AXI.

Slow with big thrust is not always the best.

With a big prop it is almost impossible to stop the plane from torque rolling in a hover. With a smaller prop and the right plane you can do an anti-torque roll.
My first Shocky had a 2208 (39 gram) motor swinging a 10x4.7 on 2S. Lots of thrust, but a hover was always a torque roll.
When they became available the 2204, although down a bit in thrust, was a much better motor choice. Switching to 3S gets back all the thrust.
Also larger props are heavier. This is important when you are trying to shave a few grams here and there.

If you want to see how a small prop high rpm setup can work check out the Knuffel videos here .
The Knuffel is intended for a sub-20 gram motor swinging a 7" prop.

What plane are you going to use this motor in?

Pat Mackenzie
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Old Dec 26, 2005, 08:55 AM
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What plane are you going to use this motor in? Quote: Pat M.

Agreed! Trying to decide which motor is best without knowing its intended use is like asking which apple makes a better pie, It all depends on the tree!

But, there's allways a selection of prop weights across a given size range
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Old Dec 26, 2005, 02:27 PM
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Causemann 240-05
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Old Dec 26, 2005, 05:00 PM
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Ames, Iowa
Joined Oct 2002
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12 vs 9 slot is something a lot of people stuggle over on which to use. I personally chose to build 9 slot motors to save weight, but the microdans are very nice and can swing very large props with ease.

Indoors you are right you want less pitch speed, but then again you also want to keep your indoor planes light...

I am sure I just confused you even more, but really there is no cut and dry answer.
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Old Jan 07, 2006, 05:55 AM
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France
Joined May 2005
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I buy the Volare 2815

here my test with Emeter

Moteur Volare 2815 (7A/60s max):

HELICE V A RPM Grams

GWS SF 9x4.7 6.6 4.4 4700 240
GWS SF 9x4.7 7.35 5 5040 280
GWS SF 9x4.7 7.26 5.2 5100 290 (timming 30)

GWS SF 8x4.3 7.47 3.6 5890 235
GWS SF 8x4.3 6.53 2.9 5290 190
GWS SF 8x4.3 7.4 3.8 6000 240 (timming 30)

GWS SF 8x6 6.67 3.8 4980 200
GWS SF 8x6 7.4 4.5 5360 235

GWS SF 7x6 6.58 3.1 5330 150
GWS SF 7x6 7.45 3.6 5880 190
GWS SF 7x6 9.91 5.4 7310 300

grams was calc with :
http://www.gobrushless.com/testing/t...calculator.php

It is good ? no ?

FRED
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Old Jan 07, 2006, 09:57 AM
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Chattanooga, Tennessee, United States
Joined May 2003
27,199 Posts
This is rather outdated but might be of some use.

http://www.rcgroups.com/forums/showt...n+small+motors


MicroDAN 2505/10 and the newer Littlescreamers are not in here, nor are the latest CustomCDR Billet motors.

Edit: Here is a link to MicroDAN 2505/10 performance and that of other small motors with 8x4 and 9x5 GWS HD props.

http://www.rcgroups.com/forums/showt...odan+2505%2F10

Here's a link to Custom CDR Single data:

http://www.rcgroups.com/forums/showp...65&postcount=9


Cheers, Phil
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Last edited by Dr Kiwi; Jan 07, 2006 at 10:36 AM.
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