249€ as limited offer 
That’s a really clean solution, i’ve planned something similar with a small alu electronics enclosure, that’ll work too but without the bells and whistles 
new high efficiency propeller available too now… works perfect for Liftfoil and maytech/reacher motors… About 800W consumption at 23km/h with 110kg total weight…
We call it hyperblade
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Nice. Where did the initial idea come from ? What’s your source of inspiration ?
How do they compare to a 6x6 FR prop ? With and without duct.
about 20% better eficiency up to 23km/h about same to 28km/h and above that FR gets better
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Nice Prop. A little expensive.
I knew it looked familiar: 
Hyperblade … nice name 
Way cooler than the manufacturers “Q-Prop™”
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Hyperblade tech spec by copy/paste:
Hyperblade™
The new five blade propellers is the result of over two years of development and thousands of hours testing.
Designed to reduce noise, while still maintaining the efficiency of our best efoil four blade propeller.
Not only did we succeed in reducing the noise, but we also ended up with more thrust.Noise reductions of up to 75% measured in controlled environments The expected and tested normal noise reduction in “average setups” 20-40% Quick and easy installation on 8 and 10mm threaded shafts More thrust
Can we hire you as sales person? 
but back to reality you did not read our insights giving you. It does not deliver more thrust with given motor but effeciency is better between 15-23km/h and it does not get more silent. actually it might be a bit louder… but the melody changes a bit as the sound of the whole system get`s a bit a deeper sound. Hard to describe…If we find time, we will do a video for you next week…But quite busy at the moment;-)
Frankly speaking foiling between 15 and 23 is quite boring.
Best speed is around 28-32 km/h
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I’d say that playing behind a boat in a wake of fun at the 15-23kph speed, but then you want a folding prop. On a big open lake you sit more 25kph and up.
I actually think folding props are probably just better as they give you a slow range options and gliding and then faster options too.
I need to get my a in g and produce a proper prototype of my folding prop and then test a series of blades!
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You would be a hero to many of us if there was a solid 3d printable folding prop model for the 65161 motor!
Look at the User superlefax, he have a flatable Prop for 3D printing.
The idea would be to have the hub made form either aluminium or acetal/delrin which is much better than 3D printing and then have options for users to 3D print blades etc…
As I said, everything is designed and ready, I just need time to cut a prototype…
That would be most excellent. We will all send good, motivational vibes your way!
Did anyone tell you the propeller is on backwards?
Thanks, this user is it 
I have it printed, it’s very nice👍