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Item found in the following categories;
> Brushless Motors > All Outrunner Motors
> Brushless Motors > KDA Outrunners
> Brushless Motors > All motors by size > MEDIUM (.10 to .40)
> Brushless Motors > Helicopter Motors

PRODUCT ID: KA400H
RATED:
KD KA400H 3500kv brushles Heli Motor
KD KA400H 3500kv brushles Heli Motor


KA400H
Shaft Size: 3.17mm~14mm / 2.3mm~14mm (two shaft sizes included)
Motor Dimensions: ³28mm~29mm    
Weight: 43g

Spec.
Kv: 3500rpm/V
Battery: 2-3cell Lipo (7.4-11.1v)
Opperating Current: 8-16A
Peak Current: 19A

Kv (rpm/v) 3500
Weight (g)
Max Current (A)
Resistance (mh)
Max Voltage (V)
Power(W)
Shaft A (mm) 3
Length B (mm) 28
Diameter C (mm) 28
Can Length D (mm) 15
Total Length E (mm) 44
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Estimated factory delivery date;
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 Customer rated 5 crowns   
View all comments | (17 threads) Ask a question
nickzz1 (8 points) 12/28/2009
came apart with no clip on the shaft all the motor I know has a c-clip or e-clip on the top of the shaft if I start this motor up it will come-a-part
please advice someone
Anna (0 points) 11/2/2009
A pinion included in HK250GT is for 2,5mm shaft!
Guizmo12 (11 points) 10/27/2009
Someone tried that on Hk250? Does the 15t pinion gear supplied in the kit fits ?
Marcin (0 points) 10/3/2009
Where to buy the pinion 15T for this motor? For HKT250 GT for shaft 2,3mm orginaln allignpinion 15T is 2,5mm ?
  Reply:  Anna (0 points);
Marcin,
Apparently this kit (HKT250GT) has this pinion (15T) inside!
Podobno taka zbatka jest juz w zestawie HKT250GT.
coolbeans (3 points) 6/23/2009
I put this motor on my (stock plastic) eSky Belt CP with an 11t pinion and a 30a ESC. The motor get's really hot after a few minutes hovering and it's too hot to touch. I removed the motor and checked inside and can't see any problem with the magnets. I also tried changing the motor timing on the ESC from low to med but made no difference. Even if I spin the motor fast outside of the Belt it gets hot quickly. Any ideas?
mmm999 (2 points) 6/21/2009
can someone tell me how many magnets are on this motor? thnx
wojnar (1 points) 6/14/2009
Der geht mit mini Funjet wie die hlle, sollte man aber maximal 4,1x4,1 Speedschraube nehmen. Auch nur max 3s. Die besten einstellungen gebt es unter Drivecalculator, wo man auch die Stromaufnahme einschtzen kann. Sonst wird es um ihn zu schade!
MarkD (92 points) 6/10/2009
There are 3 sets of wires comming out of the motor* if only 2 are connnected you should be able to see where it connects to twisted strands of magnet wire with a slodered end. Resolder it and cover the joint with heat shrink covering.
coolbeans (3 points) 6/7/2009
The yellow wire from the motor came away. Not sure if it was like it in the box or just loose and I pulled it off. I can solder it back on but I am not sure where it solders to on the motor. Can anyone help? Thanks.
MarkD (92 points)
The shaft will need to be pressed out and the new one in. The easiest way is with a drill press like Phill did it.
Marc-Antoine (1 points)
to remove the shaft from the motor you have to unscrew the bolt at the end of the motor and slide it out and replace it by whatever you want
robson (28 points)
a friend bought and adopted
phill (24 points)
shaft was successfully removed using a bench press.
phill (24 points)
how can i change the shaft to the 2.3mm one on the KD400 motor?
  Reply:  helimaster (59 points);
Just remove the grab screw on the shaft & remove the outer body ,use a small dolly smaller dia. than the existing shaft then give it a bit of tap.
Sebastian (5 points)
how can i change the shaft to the 2.3mm one ?
  Reply:  webber (1536 points);
If I am not mistaken - there are two shafts included with this motor. If not, you can use a 3.17 collet for props and drill a larger hole in the props you use (if neccesary)
martinl (11 points)
This motor bare weight is 53 gms NOT 43 as stated...getting abit heavy for the SJM180 or the ***
smplmn (10 points)
Anyone put these in a eflite f15 jet? and if so what else dide you use for ETC,and batteries from hobby city will you let me know thanks
  Reply:  smplmn (10 points);
i guess no body knows ah!
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