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  Item found in the following categories;
> Electric Motors > KDA Outrunners


hacker Style Brushless Outrunner 20-22L

hacker Style Brushless Outrunner 20-22L

Dimentions: 28x32mm
Rating: 924kv
Battery Config: 3 Lipo Cells
Shaft: 3.175mm
Weight: 56gr
Standard Current: 6-14A
Max Current: 17A
Suggested Prop: 11x4.7


Kv(rpm/v) 924
Weight (g) 56
Max Current(A) 17
Resistance(mh) 0
Max Voltage(V) 11
Power(W) 0
Shaft A (mm) -
Length B (mm) 32
Diameter C (mm) 28
Can Length (mm) 17
Total Length E (mm) 46
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 Customer rated
Total of 27 discussions.
Marco Aurelio  5 points - 7/10/2013
Battery 2.2 3s flying this average - 5 minutes what should I use to increase the flight time?
 Marco Aurelio 5 points
David  1 points - 4/5/2013
can i use a 2S battery with this motor. on a GWS slowstick park flyer? I accidentally bought two 2S batteries if I can not use them then is there another motor 2S compatible I can use?
 Alex 747 1 points
Yes, you can use 2S battery with prop 12x4,7
Carlo  6 points - 11/29/2012
I'm many months waiting for these motors.
Do you supply again ?
I need 6 of these motors, I will order them
 petcanu 60 points
 petcanu 60 points
giantshark site in know what to add for england site? *****
 Hank 48 points
A good alternative more expensive but a huge leap in quality makes up for the increase.
Jolly Jumper  43 points - 8/26/2012
Does anyone know what kind of bearing would fit in this motor?
Maybe someone has the exact measurements of type?
MrAeroKey  22 points - 7/29/2012
What should be the max temperature of this motor? I was flying my quad and noticed that all my motors were very hot so just curious. What is the max temperature of these motors before they blow up on me. Thanks in adv.
 sirbow2 14 points
what props?
 pardus 326 points
Below 160°*F or 71°*C (too hot to hold) is a comfortable maximum, over 200°*F (93°*C) will start to blacken the laquer on the wire around the stators and potentially demagnitize the magnets.
 sirbow2 14 points
replied to the wrong person *). dont use 11in props with these(heat issues). 10in work great.
 pardus 326 points
MrAeroKey asked for max temperature not props, I replied to his question not yours :)
 sirbow2 14 points
i was also replying to him on mine :D
Customer Reviews
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Overall Rating
21 thumbs up!
Used a few times then it just stopped working. Try the KDA-22-20L instead, similar price but has been going for a long time...Plane is 16oz AUW, 10x4.7 prop, 25a esc, 3 cell 1000mah.

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Overall Rating
20 thumbs up!
Unfortunately, my engine KDA20-22L stood only 5 flights with the model weight 427gr, a screw 11 * 4,7 and worn out. Very sorry.

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Overall Rating
18 thumbs up!
I used this motor with 25A turnigy speed controller and 1300 3s lipo. In 3 flight it stucks and i lands my plane without thrust! Why this motor was stops in flight i dont understand yet...

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Overall Rating
17 thumbs up!
2 stars less for poor quality control !
Great motor for design and performances but plan to buy one or two spare pieces if you feel unlucky.

I bought four at the same time and one was completely different , different wires output location , large movement of the motor bell over shaft, much more noise.
Another time I bought 5 of these motors and one had the bell blocked I had to unmount it and remove metal piece between magnets.

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Overall Rating
17 thumbs up!
Good motor, spare sharft included. Used it in a small glider, where it turn a 10x6 prop with 2 cell lipos.
Only three stars since the first motor I received had loose magnets and shaft broke easily after a rough landing. However HC replaced the motor and this one worked fine. Quality seems to vary

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