Design looks great, but since I e-foiled successfully too now…I know that this concept has some serious faults… And this impeller setup is just a wasting energy thruster… Look at the big cooling plate below the board, then you know that they will pull 100A+ . And if the don`t use the battery from the e-tron then I assume riding time is less than 10minutes
There’s also Flying Wings (Flying wing - Wikipedia),
but you need a special foil section for it to allow to be “flyable” or statically stable.
Since with aircrafts you set your CG once and control the plane via control surfaces, it’s hard to compare to the weight shifted control we do on our foils.
I personally don’t think a Flying Wing would be a good setup for a foil unless you have control surfaces (ailerons) and a processor/controller that helps you keep the foil level (which would be kind of an autopilot, or controller like they’re used in drones)
As for the Audi Foil, I’m not really convinced of the setup. The backward bend mast is just a design thing I suppose, and the tiny tail looks really small.
I’ve seen that thing in Kiel last year, I was there when they did a promotion run during “Kieler Woche”. Not sure how long they’ve been in the water, but it didn’t look to “smooth” and only starts foiling at quite high speeds I believe (i don’t have any data, just from seeing it)
Pros: safety (first commercial impeller), direct drive [looking forward to knowing the motor details (Kv, manufacturer, slot/pole number)], remote control, battery quality up to Audi electric vehicle standards, tbc’d…
Cons: price (15,000€ including taxes + shipping for EU residents), is 32kg really “lightweight” ? No information about ESC, tbc’d…
Questions: how much energy (autonomy) is lost in this impeller compared to a propeller system ? What happened since the 2018 prototype, the hull cooling system seems abandoned.
It’s finally available at the e-surfer Shop. The Audi e-tron Foil by Aerofoils. Shipping starts end of February and we will get our demo board this week, which we will offer for test rides in Berlin and later on other locations.
Intelligent remote control with high-resolution color display
Minimal water resistance for maximum glide
80 cm mast with low motor for maximum height
Highly intelligent battery of the latest generation
Two radio receivers for constant connection
Maintenance free gearless motor
All carbon fiber construction for maximum robustness with minimum weight
GPS & Gyro for maximum safety
Made in Germany
Free smartphone app
Audi e-tron Foil – Technical data:
Top speed up to 50 km/h*
Range up to 120 minutes*
Up to 40 km range*
32 kg weight including battery
Tested for riders up to 100 kg
*Depending on setup, driver weight and conditions.
To answer the question above. Aerofoils is an Audi AG spin off. Audi is an investor and licensed the name to AeroFoils. Audi is also supporting Aerofoils with Know How and testing/manufacturing facilities.
I did ride an prototype in 2019 and the latest version in November 2021. It glides really very well and as you would expect from the Audi brand, it is using only high quality materials. It’s very well designed. Can’t wait to see the Avengers or 007 riding it
Then they should show a rider that’s 100kg and not a rider that is around 50kg in the video. Show the foil performing to the max of its ability and I will be convinced. However we all know that the jet, while safer than a prop, still has 30% less performance so it will just never topple the other players…