here is what I think is a good question...how can a retailer sell a product and not give some specs some place for it. I have this motor and it dosent tell me the three wires coming out of it polarity. Can anyone help with this.
Two more quick questions:
One, is the KV on this motor too high for use on a 450 with 325mm woodies? I was reading the discussion on those blades and they were talking max RPM. Any worries here?
Two, I bought the Hobbyking SS Heli Series 50-65A ESC. Safe for use with this motor, 2200mah Turnigys at 25c and a 13t pinion? I think the HK450GT Pro comes with a 14t pinion. I bought a 13T. Can anybody quickly school me on how to make these calculations or point me toward a calc online? Thanks!
depending on how many cells your running but basically volts x kv=rpm then you would need to determine the gear ratio by dividing the main gear tooth by pinion tooth then you could determine the approximate head speed example 400t main gear 10 t pinion is 40 to 1 ratio 11.1volt x 4400 kv =48840 divided by gear ratio 40 = head speed of 1221 these are just hypothetical numbers hope this helps
I think that calculation puts my head speed at 4232...lol. That's too fast, no? I need a 9t pinion which seems odd. Here's my specs 150T main, 13T pinion, 11.1v 25c batt, 4400KV motor. Thanks for all the info!
My opinion, this motor is way to high kv to use with woodies, however if you already have it, use a 11 tooth pinion at the most. If you can find it a 10 tooth would be better. I use a 3500kv and 11 tooth pinion for general sport flying.
I have found " Dark Horse" makes a great heli thrust/head speed calculator. Just Google " Dark Horse calculator" and you can find there a regular excel spreadsheet type calculator ans a more advanced version. You can even save your work. Nicely done calc best I have seen. Even figures thrust, throttle % to hover w/ given weight, blade tip speed, and its built in model recognition speeds up user input.
Got one in the mail today and I can confirm it comes with no bullet connectors or pinion. However it does come with mounting screws, flat washers, and lock washers. Plan on using in a 450 pro with 13 pinion for some crazy 3D. :)
It all depends on the target headspeed you want the heli to run. That would determine the size pinion that you need as well as the pcnt setting in the ESC. Check out helifreak and you can find a headspeed calculator to determine what equipment you need.
Does it matter which wire is considered black, blu or red for when it is plugged into my esc? I have a 30a esc and i notice it gets very hot (the esc) very fast. Wondering if i have the wires crossed or something. Pinion pointing up, left to right i have them in this order: blue, red, black.
Suggested ESC is 50A* you are just over half of the recommended ESC capacity ... so I would anticipate heat problems if you are anywhere near normal load on this motor. As stated above, interchanging motor wires will only result in reversed rotation ... not excessive current or heat.
Nice and strong motor, just installed and so far it looks good. No heat after running for 6-Min flight on 2200 3S 25C Nano-Tech. Good motor for the money and available in the USA!! Need more Typhoons 2218's in USA...
Excellent motor, smooth quiet and strong. Unfortunately met its match in a crash from 100plus ft.. but so did everything else around it!
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Awesome motor!! Put it on my Trex 450, and after a full battery run its barely even warm. This thing has loads of power, its quiet, and smooth. I'm using a heavy duty ESC, plus a camera, so this makes the heli a little heavy, and this motor throws it around without even trying. You CAN'T beat it for the price. Thanks.