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Aug 07, 2014, 03:39 PM
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Thread OP
New Product

Multistar 2212 - 920KV Multi-Rotor Motor Set


did anybody try this motor ???


http://hobbyking.com/hobbyking/store...4pcs_box_.html

Specs:
KV(RPM/V): 920
Lipo cells: 2 ~ 3s
Max Amps: 20A
Dimensions(Dia.xL): 27 x 23mm
Motor Shaft: 5mm
Propeller attachment: 5mm domed hex nuts supplied (2CW and 2CCW)
Mounting hole spacing: 15 x 18mm (M3 holes)
Suggested props: 9 x 6 slow fly ~ 10 x 4.7 slow fly
Connectors: 3.5mm bullet

Included:
4 x 2212 - 920Kv MultiStar motor
4 x 5mm domed hex nuts (2CW and 2CCW)

Price$44.99
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Aug 07, 2014, 04:28 PM
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manuel v's Avatar
My test.
Very fine with 10x4.5 to 120 watts, 3slipo.
http://www.mexicorc.com/foro/showthr...d=1#post427624


Manuel V.
Aug 08, 2014, 12:20 PM
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Made in Austria's Avatar
They look exactly like the DJI ones, well except for the color.
Aug 08, 2014, 12:45 PM
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Thread OP
yes the specs is like dji phantom standart motor...
and what about the bearing is anyone here already open the motor?

cheers

indra
Aug 08, 2014, 04:32 PM
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manuel v's Avatar
DJI motor Grey 300.

The motors are not the traditional red, are somewhat more guys, and 50 grams, 2212-920 with 9.5 x 4.5 propeller and 15A esc.

The ESC brings battery cable with coaxial or shielded.

My tests were as follows.

No Load.

M1 = .47A, 10,400rpm, 11.67 V, 891 Kv.
M2 = .54A, 10,450 rpm, 11.73V, 890 Kv.
M3 = .50A, 10,200rpm, 11.62V, 878 Kv.
M4 = .44A, 10,150, rpm, 11.58V, 876Kv.


With prop stock. 9.5x4.5

Mi = 8.14A, 7,800rpm, 11.36 V,% NLS. 77.1
M2 = 8.28A, 7,900 rpm, 11.40 V,% NLS. 77.9
M3 = 7.86A, 7,900rpm, 11.31 V,% NLS. 79.6
M4 = 7.79A, 7,800, rpm, 11.28 V,% NLS.78.9


This motot is not you can put bigger propeller because even with this, motor is quite hot, but not enough to consider not accelerate fully.
Practically this limit in its 94 watts.
94 watts between weight 50 grams is 1.88 watts per gram.

Nothing to do with what many brands claim 3 or 4 watts per gram.


Vs Multistar 2213-935.


No load. .57A, 12.09V, 10,350 rpm, 856 Kv.

APC sf 9x4.7, 9.35A, 11.76V, 7800 rpm, 110 W. 77.5% NLS.
10x4.5 stock. 10.97A, 11.37v, 7100 RPM. 124.7 watts. 72.9 % NLS.
GP 10x5.5 11.65A, 11.73V, 7000 rpm, 136.65 watts, 69.7% NLS.
APC SF Clone. 10x4.7. 12.85A, 11.44V, 6500 rpm, 147 watts. 66.4% NLS.


Manuel V.

Note.
For what I see, these two motors, if they have the same system and if they can share the propellers.
Al Multistar you can put the propeller of DJI.
When the motor DJI, you can put any with multistar propeller nut.

Unfortunately when multistar motor had in my hands, did not know the DJi.
And now i have only DJi motors.

I'll try to provide the multistar, for tests with DJI 9.5x4.5 propeller.
But being of a lower Kv, the performance will be lower.

Multistar MT2212-920 differ lightly to MT2213-935.
You need to know your true Kv to see if it is a direct replacement for DJI.
Last edited by manuel v; Aug 10, 2014 at 02:14 PM.
Aug 18, 2014, 02:48 AM
Registered User
Here is the buddy code for get this set for only 37$

https://www.hobbyking.com/buddy.asp?c...E-9D4040A7ADAF
Jun 29, 2015, 06:28 PM
Registered User
What are the props called that will fit the notch on these motors? I have the turnigy 1045 on the f450 but i would like to go up to 11 or 12" props.
Jul 01, 2015, 11:02 AM
Registered User
I think they are called DJI style or DJI fit depending where you look.
Jul 01, 2015, 12:17 PM
Registered User
I just got some of the self tightening since it appears they fit on the DJI motors like this so we will see how they work.
Jul 04, 2015, 09:15 PM
Registered User
DJI motors run fine on 4s power with 9.4" prop. Multistar is a 3s only motor, it is not comparable.
Jul 05, 2015, 01:41 AM
Registered User
manuel v's Avatar
Multistar is OK with 4slipo.
post 6 with CF 9x4.7SF.
http://www.mexicorc.com/foro/showthr...d=1#post427624
Jul 30, 2015, 03:35 PM
Registered User
The self tightening props do work on these motors and im getting a minute more battery life with 12" props on my 450 quad.
Jul 30, 2015, 07:48 PM
Registered User
Joseph3LK's Avatar
Quote:
Originally Posted by jordanM
The self tightening props do work on these motors and im getting a minute more battery life with 12" props on my 450 quad.
just bought a set of 10" props

didn't know these things could take 12" ??

wow must try that
Jul 30, 2015, 08:49 PM
Registered User
Yes got a pair of carbon fiber ones on eBay for $10 each.


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