I completely agree, odd size hole spacing. Used the standard 6374 mounting holes on the other side though?!
Because their market isn’t people that buy foil drive motors or saite motors.
This bolt pattern is actually far better with more options.
@Jezza i hear you but i did think this was made to compete with in the DIY market being what that motor series is…its a work around…no big feal really…great quality motor !!
K
Had a look at the videos, seems the comparison isn’t good at all.
Just following the numbers:
6374 would be 7% more effective at 36V than 48V even though the load (rpm) is the same. Not likely.
The 6384 provides same thrust at 48V as at 36V, even though motor current is higher and measured rpm is 20% higher. Could be that prop blades start bending or cavitation occurs.
Anyway, it’s a poor testing.
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They told me different motor tests got different props, no cap.
Flipsky dropped price for 30$ on their new 6374/6384
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https://www.aliexpress.com/item/1005007305882545.html
Flipsky added 10% discount on Ali also, so if you don’t like official site you could buy it on Ali for 135.80 - 13.5 (+shipping), will be almost the same as on the flipsky.net
I don’t know which shipping will be faster, but prefer Ali over flipsky.net.
Sad that 6384 motor not available on Banggood
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Unfortunately, it’s a 140KV motor. I previously made a mistake by purchasing a 120KV motor instead of the 100KV I needed, based on someone else’s recommendation that 120KV would be better. What I really need is a motor with a lower KV rating.
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120kV is pretty standard, i’ve used 100-140kV with success, depends on the esc.
Why do you want 100kV? High voltage setup?
Yes, I’m using a 16S battery. A motor in the 60KV - 80KV range could also work.
The 65161 120KV motor works well because it provides ample torque even when not operating at its peak efficiency.
I also prefer AliExpress. Good they sell there now as well.
What about kV, will it be good to use 140kv with 12s? Now I am on 120kv…
@Larsb
@Pavel
This motor x3 the price of a regular one. What are the benefits aside being battle hardened?
I have run this on 12S and 14S and it works well.
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What is the maximum current you typically draw, and what are the maximum current limits of your battery and ESC? Additionally, what is the highest duty cycle you use?
It is funny, but I don’t know that experimentally as it is not VESC, do not have telemetry and there is no current limit. Throttle on the BLHeli ESC and on VX3 is at the default settings.
I just went with the simple proven to work configuration 6384+XCross 160A+12S3P board=90L/me=90kg/foil=1600sqcm.
And it is working, I take off in rough water easy without using full throttle. I just can’t quantify it with current/DC…
In that case, if you currently have a lot of unused throttle range, then this should work, even with a rough estimate.
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Received my 6374 from Flipsky and it is much louder running underwater then my cheap 6384 from china. Sounds about the same out of the water during a brief run up. I tried switching out the ceramic bearings for stainless ones and it didn’t make much of a difference. Same exact setup (esc, 12s, prop, etc). Might experiment with different timing settings in the esc programming.
Anyone have a similar experience or any ideas as to what the solution might be?
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Could be some different things, air sucked through the mast hole (if there is one), cavitation, resonance.
I had big issues with cavitation inside the rotor bell on my 80100 motor. Couldn’t remove it completely even with 3d printed covers inside the motor, epoxy smoothing etc
With my 63100 i can sometimes get what sounds like vibrations/resonance at certain speeds. I guess the long bell and lack of supporting bearing at the base might cause it. Loose bearings and unbalanced props or disturbed flow might be worth to look at.
Do you see bubbles when it happens?
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Thank you for the reply. I have not looked down/back or filmed while riding yet, I will give that a try. The puzzling part is that it is noisy when moving slow thru the water at 3-4 mph as well. I assume at this speed it wouldn’t be pulling air in. Maybe there is air stuck in the rotor that is not releasing from when I first put the board in the water. Motor is very smooth with no vibration felt.
Did you also purchase their prop?
No, I am using a foil drive three blade prop. I drilled and tapped the rotor to make it work with the Flipsky motor.
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