Thanks!
I don’t have a vac chamber, but will look into this.
Some of you guys have asked about how to make the folding prop fit the 65161 motor. I posted measurements awhile back in another thread. Here’s the link. As you can see in the post above it works. Sean successfully did this mod.
Ha, thats funny. I almost have the same construction. Using the 100KV maytech motor with a originally 7,5 x 8 inch prop turned down to 150mm. I wanted to have more pitch than whats typically available. Printed duct and similar attachment to the mast with water inlet at the tip. Running the GONG XL wing currently because I didn’t read some of you guys posts in time. Will move to the M Pro Wing as soon as possible. 14p14s Booant Battery. 130L Board and 300A Maytech controller. Second board will be smaller and with more reasonably priced controller.
Cheers
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From where you got your VESC Aluhousing?
Hi.
This box fits the flier 400a red boat ESC with some trimming of the cooling pipes. You can find it cheaper. The two boxes were about the same price.
This box fit my 75/300 VESC. But, caution! I had to grind the heatsink on the VESC down, and round the corners! Look at my build pics I posted.
Just go with the bigger box for the 75/300 VESC I suggest. Here is side by side pictures
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I took my dog for a ride. 
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He looks so relaxed. I have a 80kg Great Dane that is keen for a ride. Unfortunately I don’t think it’s going to happen.
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Great Engeneering congrats!
I am a surf foil rider and want to learn down wind surf.
I would like to buy the lift e-foil with folding prop and 250 FW for this purpose.
Do you think it will work for praticing in reading open ocean wind swell and be able to to downwind in regular sup foil later?
Are you doing downwind with your efoil?
I am based in Hong Konk, where are you based?
Thank you
Maxence
What did you make the lid out of?
I used XPS foam (Insulation Sheathing) sandwiched with a few layers Carbon Fiber on each side.
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How many layers of how many oz cloth?
Hey can you send me the links for the motor , ecs and other electronic used in this video as I am not good with electronic so I need help with that also if you can help me to do connection and make it work.
Many many thanks in advance
Sincerely
I don’t remember if I used 4.8oz or 5.7oz carbon fibre. I did 3 layers on each side. 5.7oz will be really strong.
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Alibaba: Flipsky 65151 120kv motor, Maytech V2 remote, Fliers 400amp esc.
Castle Creations: BEC waterproof (Others will work fine).
Samsung 18650 cells
Can you send me the Connection video or diagram also many many thanks
Hi.
It is all documented on this forum. Lots of reading to do! Once you have done your homework everyone on here will be happy to help. Read up, then post specific questions. We’ll be here to help!
The search function is your best friend : 
For one word: Search results for 'diagram' - FOIL.zone
For two words: Search results for 'wiring diagram' - FOIL.zone
Just for clarity here, you are literally poring .5" of liquid CorrosionX into the bottom of the VESC box and VESC is submersed in the liquid? I bought a gallon of the stuff to replicate this, but it’s a little discomforting poring all that liquid into the box. Does this affect the connectors in any way when you hook up new cables, etc?
Hi.
Yes. I was scared to the first time, years ago. 
But, don’t worry. My VESC is swimming in corrosionX. As is the receiver. The effect on wires and connectors is it prevents corrosion. It will not interfere with the connection. That’s the beauty of corrosionX. It remains a liquid. This stuff never dries.
If you fill it too deep it may negatively impact the Bluetooth signal strength. I filled mine just below the top of the VESC and my Bluetooth signal is fine even with the top on the aluminum box.