If you’re using 45A cells, does this mean you need to limit your ESC to 90A to not push them over the current limit?
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Note that 45A max is for long run when it reaches thermal limit. For short period cell can do much more.
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I tried the 5065 140kv motor and was pretty amazed that it worked. Not as efficient as the 6362 motor but not bad. It actually pulls the same amount of wattage I see on my Flipsky 6374 motor when getting on foil and when up and riding around (12s2p, same front wings, rider weight, board, conditions). Obviously it is much smaller and lighter as well. I made a two blade hub for the motor that fits the FD aluminum blades. This hub still needs some work. I left my mount and side cowling pieces the same for testing which are a bit oversized for this motor. I assume after updating these and streamlining better I will see some improvement in the efficiency. Pretty excited that I was able to ride with such a small motor. Thank you @Jezza for recommending this motor.
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that is very cool, efficient board sure helps!?
What is the motor weight?
390 grams per the manufacture, I have not weighed it myself yet.
Can you tell how many amps, voltage and RPM you need to get on foil?
I wonder if we could get on foil, and how many starts, on a DW type board/foil, with a dirt cheap setup : using this kind of motor, e-skate controller, 10s1p 21700, could be less than 150 Eur of electronics 
~1.5kgs for an assist would be insane, my current setup is 3.6kg
I am using 12s so about 45 volts, pulling 45 amps to get on foil and around 10 amps when up and riding on a 900sqcm wing at 172 lbs. Not sure of the exact RPM as the data logger I have doesn’t report that.
Thanks, Do you have phase amp data?
900cm2 is quite small, good job 
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What data logger setup do you have?
It is built into the castle creations edge 60 esc, provides battery amperage, battery current, watts, controller temperature, throttle percentage, and ripple current. Does not provide phase amps though.
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Really impressive, what is your board ?
Tim’s board is that long diy:
'Foil Drive Assist, DIY - #1660 by s9tim
He tried the 6362 105kv motor and then 5065 140kv
Thanks, not sure wether it is really interesting to have a such small motor if you have to take a longer and heavier board
my kitefoil board for foil assist is 17L , 3.5feets long, 2,5KG, my surf foil assist board is 4.8feet 4KG
If you have to use a 6.0 long board, it means 6kg, you loose at least 2kg
Only advantage is maybe less drag
This board is 4’11” and 18.5 inches long. Weighs 4.6 kg empty, 10.8kg with this motor ready to ride including 12s battery and foil, mast, leash, etc. This motor would work on your 4’8” board but would probably struggle on the 17L one.
I wanted to try some smaller motors to see what lower limit in size is. I think I have reached that with this motor. Will continue to test and run the 5065 over the winter but feel that the 6362 is a little better all around. The 5065 would be my choice for SUP assist but for prone assist the 6362 feel like the better choice.
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in this case, really impressive and great setup.
Only downside is to waterproof the 5065
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