I was not aware of this. Good point.
I sure believe it was not pleasant. I rode a small boat (more like a small RIB) last week with a 40hp motor. I took care to look at the tachometer at full throttle and I was hitting 5400 rpm at a speed I believe to be close to 60kmh. This was already absolutely not pleasant, so I can not imagine how you will feel on a small efoil…
I think it is nice to keep 3 blades for the strength in a printed propeller , what about reducing the area of the blades ? I am waiting to test my propeller ( finally designed one and got printed in sls …) with 0.45 area … aiming for 4000w at 4000rpm …
Which slicer do you use?
Is the support good?
I printed this prop upside down without any support, but i would love to learn the correct parameters to get a perfect support.
Yeah, strength may be an issue, i will see.
Slicing in cura
6 Perimeter, shifting wall layer, 60% infill, 40mm/s 0,2mm Layer, 200°/60° Support 50°
Removing Support is a bit annoying, sometimes it popps off in one piece, sometimes it takes chisel work
Awesome work V_S! Do you have a link to where you purchased these stainless steel bearings?
Real world stats
Lucky me, i had this weekend a Vesc for testing. Setup VESC:
Battery Current max 80A, Motor Current max 130A. No Problems to get on Foil with my board.
RL Foil, Backwing shimmed 2mm, 80100, 2Blade 145mm +10% pitch.
Prop was chipped at one end and not sanded at all. So still room for improvement.
You can see nice, how Current Limit Kicks in at full throttle.
Which vesc did you use ?
Performance goes down past 25km/h ( duty vs speed vs motor amp ) , is it drag ? Higher rpm with outrunnner … ?
Yes, combination Foil/Motor/Prop works best 22-25kph.
Round about 1800W at 24kph
I can confirm, the Flipsky 200A works.
I have no clue, how a Vesc really works, and how it does its magic and measures the correct settings for the motor, but it is amazing.
I have tested the Flipsky. It is shipped with an older FW.
I swapped my flier against the Vesc, plugged in the Metr.at Pro dongle (stripped unneccesairy 3 cable), started Vesc-tool App, and did successfully do FW Update and went through the Motor and Input wizzards.
Adjusting Motor Current to 130A, Battery Current to 80A, lowered the temperatures settings 10° and thats it.
I have a temperature switch 40°C attached to the housing. Cooling turns in about 15% of the time. (0,5min on, 3,5min off) No thermal issues so far.
I guess with 100% time cooling, it would stay way cooler and/or could handle much more current without thermal issues.
Can it handle 200A? No clue.
What ever, i can confirm, this Vesc works with 80100 and my setup flawless.
For me its a nobrainer. 180€/200USD and you get a easy to use/cool Vesc with the ability to connect a metr.at.
With plenty of safty Features, waterproof housing it should be as indestructable as the Flier. No burnt ESC anymore.
As long i do not know, how this Vesc ist build, i dont go over 150A motorcurrent and i should be on the safe side for the Hardware.
By the way: FOC is so silent 
And the Flier cooling was needed about 75% of time, this vesc cooling 15% time pump on seems to be enough.
Anyway, i dont think you can use this one passiv cooled.
The downside of this Vesc: Batterycables are Double 8AWG, thats more than enough, but:
Motor cables only AWG10.
If you want to push your Limits in riding, go for the 75/300, for relaxed and cheap cruising with 25kph go for the Flipsky and a 63100 or 80100
The 63100 is more efficiant at speeds below 30kmh. Above 30kmh the 80100 seems to be better. But its also a matter of the Prop
That’s definitely some interesting results here !
I might end up getting this VESC too 
May I ask how you get the gps speed ? Does it come with the metr module ?
Do you also plan to test different kind of props like the one from tunnelvision ?
I wouldn’t stress about the 10AWG cables. I have been riding them for ages and no heat issues even after 30 minutes with 90% throttle.
@Sliman_O GPS speed handy
@Jezza that sounds good. I thought someone said AWG10 get hot at 60?80?A continues
Thank you for the stats! I will go to vesc setup now.
Is a good option…
What prop are you using? You got the 130kV?
130kv+flier400A, same as yours was 
I used the cheepo alu prop for 2hp yamaha engines.
Oh, my files and results are free for everyone…
Here the used prop for that log above:
And the shim for the rear wing:
