Custom Direct drive motor


#41

Tp 5690 same size and power as the tp 5870 just 2mm on the outside case


#42

You are correct, I see they used a finned can which made it 2mm wider. I wonder why he didn’t just use the 56mm version then…


#43

56 for boat with water Jack , 58 for car for air cooling, i guess

For direct drive : 290kv , 12s with a very low pitch propeller around 110mm diameter ?
Work with less than 3,5N ?

Anyway it is bigger than a SSS


#44

Thank you I was about to ask for the exact model number or similar. Much appreciated.


#46

Hey pacificmeister
could you test this 200kv motor direct drive? what are your impressions… Where did you get it?


#47

I tested it in the tank and my first impression was that it is a bit small and it would be a big prop/wing/… tuning challenge to get it working in direct drive and get me flying with my 180pts/80kg.


#48

Hi!

Looking at the two pictures from Instagram it looks like there’s a big difference in prop diameter. What would your guess be? For efficiency we would like to have larger blades with lower pitch as I see it.


#49

With 12s 15Ah he’s getting around 25min with the direct drive prop. From what I can work out, i think the prop is 120mm.


#50

Sounds to good to be true! Do we know the trust needed to get up and foil (75kg rider)? I need to do some tests measuring amps and thrust. The prop needs to dimensioned so that the motor is able to reach max rpm for the given battery pack.


#51

That is not too bad so he is riding with about 1700 if I calculate right…


#52

Hi! I’m preparing tests for a 100KV direct drive. Can you guesstimate the diameter and pitch of the 2 blade you used for the test?

Thank you!


#53

He says 1.5 mins per 1 Ah, i would guess 40ish amps. 1st pic 90ish mm, 2nd i rly cant measure, perspective horrible :slight_smile:


#54

What about this motor? Anyone tried it?


#55

No one has tried it yet. Will be interesting to see if it works.


#56

Vefoils friend bought it, lets see how it goes :smiley:

EDIT:
Just short question. What i understand in the most simplified way, torque is directly related to Ampers and rpm to Volts. So, this motor would produce claimed 7.2Nm @80A regardless of picked voltage?