hello I have a 2836 3700kv motor I put a propeller 4.5 * 4.5 and 80 amp plush esc and lipo 2200 40c but after 2 minutes the engine burn and why have you for a good configuation for me it does not happen again thank you
As you can see this motor is made for 30A-40A current. In your setup motor use more current so you can't operate him at high speed for a long time because it will burn. Also you should try to use smaller propeller like 4.1 x 4.1
Have it in my Vampire mated to a 4-blade EDF unit (which is not sold anymore???!!!). Takes around 800W on 4S and gives good thrust and speed. But I wouldn't recommend running full throttle all the time, the motor does get quite hot.
I'm new! Just building an HK 450GT Pro. I bought this motor and a Turnigy 45A SBEC ESC. My stupid question is which ESC output wires connect to which wires on the motor. The ones on the ESC are labelled A B C, but the motor wires are not labelled or colour coded at all!! How are you supposed to know which connects to which?
yeah , you just need to connect all the three wires to the 3 motor wires and if you want to reverse the direction of the motor just take out 2 wires and interchange that connection and you are good to go
In the review section there is some controversy about the shaft diameter(s). Someone said that it is 3mm where it goes thru the bearings, but steps up to 3.17mm for the pinion. I have the "older" version of this motor, and would like to get a new one, but in the older version the shaft is 4mm at the back end (and 3.17mm at the front end). Could anyone confirm if it's 3mm, 3.17mm, or 4mm at the back end?
Thx guys, MUCH appreciated.
Unfortunately again two opposing answers, 3mm or 4mm? Are there that different versions of this motor available?
I would appreciate if more of those who recently purchased this motor could respond
Thx a lot again!
I think this is similar to the typhoon motors its a step shaft where in the shaft were it is inserted unto the motor is 3mm and the shaft where it portrudes outside is 3.17 mm. They do this since most pinions for 450 size heli is 3.17 mm but its easier to get 3mm bearings for the case.
it really depends on your use of it i use a 90-100 amp esc but im using it in funjet and things of that nature so i need the extra ump to get blazing fast speeds with a small prop (4.75 x 4.75 or a 5x5) depending on your pinion and main gear i think a 50 amp would be good for a 450 size heli
I got this motor in my T-rex 450 2 years ago and it is still running great! I got 70 mph out of my 450 with this, I use a Kforce 40A ESC with a 11T pinion, and I got plenty of power, maybe not for hard 3D but I haven't reach the level to fly hard 3D anyway
It is for "HK450 CCPM 3D Helicopter Kit (Align T-rex Compat.) Ver. 2"??
1 x 13t and 1 x 11t pinion"
but on 450v2 "Motor Pinion Gear:12T/13T"??
I just to by another Pinion gear to us this motor for 450v2?
This is a High Power and High KV motor. So you have to select the maximum 26.25 degree to get the high performance of you motor. Anyway after changing the timing setting ,please tesr your RC model on ground perior to flight.
Okay, let's think. KV x Voltage is the maximal RPM for that voltage.
=> Max. RPM x Poles / 20*
If the switching frequency of each pole is Max. RPM [Hz] - the rotor will rotate with that speed, because the motor is a synchronous motor. So each impulse per pole is cut internally on Poles/20 pieces. I think Poles/20 is a good ratio to cut each impulse for smooth enough rotation. But higher is better I think, except the resistance of the motor. I think dynamic resistance is the way to choose good frequency.
I've found that using 16kHz gives smoother running at part throttle than 12 or 8kHz, with a Turnigy SB 40A and Typhoon 2218H & 2215H motors. (both 6 pole motors)The downside is supposed to be slightly higher ESC temperature.
has anybody tried to do some 3d with this motor. i mean piros tick tocks backwardflight? Im just wondering if it bogs at these manouvers i got the typhoon 3550 and 3450 both of these bogs. even with recommended pinions and 40c lipos
Funprise, go to forum and type HK450 and look for post from Ivan. He uses this motor and has a lot of videos. In fact they are all he uses. One of his threads is building a 8.95 3d heli. He does all sorts of things with them and is very nice and easy to ask questions of. Send him a PM for the best recommend on this motor. I'm sure you'll get the answers you need. He says he files a flat spot, and I think he is using a 12 pinion. But watch the videos and ask him! HOpe this helps... Maq
Michael I dont know why this motor holds up so well. It is a very good motor and I have abused mine over and over and over. It is very robust and the specs are definately wrong. Buy it before the Chinese New Year chokes Hobbyking and delays orders. You will not be disappointed in this motor at all. If you intend to put it in the RadJet or the SkyFun (delta)it is an excellent choice.
I ran a Blue Lipo 2650 4s and 45C (Still have that battery and still use it.). I had a run of bad luck with Zippy lipos and Blue Lipos and abandoned those brands for Sky Lipo and GensAce, but everybody has their favorites, and eventually all my batteries get puffy no matter the brand, but the GensAce are outperforming everything else I have tried. I am running my first Turnigy Nano Tech with high C ratings this season and will see how they perform. In a nutshell Michael, always run more battery than your system will draw. If I had a draw of 80A I would consider a battery like this. 2200 50C (Not the burst rating)or higher C rating to safely draw those kind of Amps and have a nice cushion to keep my battery safe.
W O R N I N G ! ! ! !
I bought this motor and HK send to me it without accessories I dont know why!!! I dont have 13t and 11t pinion, no 3 x Male and 3 x Female 3.5mm, no Shrink Tubing... but i need it!!!
i did try both of the motor , and both of them was use it on the v2 mini titan , i still prefer this motor , after testing both of them , motor will get warm on each motor , but one of mine of the typhoon motor , the air vent was break after a few normal flight .
you guys speak english please so everyone know what your saying.. bueno?
21 thumbs up!
Got this motor and the rotor containing the magnets is not formed correctly. Resulting in massive vibration throughout heli. Very dissapointing. Pain in the ass when you get one and have nothing else. Will put hyperion motor in instead. Quality control not up to speed here HK. Would put no star if possible. have read other reviews with same issue on web.
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15 thumbs up!
So far an excellent motor. Gets hot at 600watts with a 4.75x4.75 on 3S. but should take short bursts. superb value.
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14 thumbs up!
Only 3 stars as the discription at the top measurements tells us it has a 3.17mm shaft. But it has a 3mm shaft as discribed in the bottom of the add. A little disappointed in HK. This motor is now usless to my needs. Mal