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What Determines a Motor Power


Nigel Heather
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10 hours ago, PatMc said:

...................................

Ref my 60 year old copy of Electrical Technology by Edward Hughes & my memory. If only I could as easily recall where I last left my specs. 🙄  

👍

My copy of "Hughes" is still on my bookshelf alongside my "Shepherd Morton & Spence", and I am sure you know what I am talking about.

Yes, a long time ago but still relevant 😀.

 

Dick

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On 08/10/2023 at 10:09, Dickw said:

👍

My copy of "Hughes" is still on my bookshelf alongside my "Shepherd Morton & Spence", and I am sure you know what I am talking about.

Yes, a long time ago but still relevant 😀.

 

Dick

Is that the book that was published in a green cover? I have memories of it from times long past. Finally got rid of it when we moved about 5 years ago.

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  • 3 months later...
On 04/10/2023 at 18:11, Nigel Heather said:

Say I have two motors, one a 3648-900 and the other a 4050-900.  
 

The 4050 is quoted as being more powerful, more watts but if I attach the same prop and connect the same battery, the prop will rotate at the same speed because they motors have the same kV.

 

So what cause the 4050 to be more powerful than the 3648.  Is it because it can swing a bigger, pitchier prop.  But if you swing the same prop is it a waste, are they same power motor in that case?

I'm a bit late to the party, but you may compare different motors by entering your data into this online calculator. https://rcplanes.online/calc_motor.htm
You may open separate windows for different motors and put them side by side to compare the results.

Then click "Print Screen" on keyboard to copy the results into "Word" or "Paint" if you want to save and/or print them.

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