Flapping foil propulsion 1

This propulsion is said to be more efficient than a propeller.
The magenta arrow indicates the direction of the boat's movement.
The foil moves up down thanks to a slider crank mechanism consisting of the input blue crank shaft and yellow conrods.
The crank shaft also carries a second slider crank mechanism consisting of green cranks and a green conrod. The second slider crank mechanism controls the angle of attack of the foil. The angular offset between the blue and green cranks determines the angle of attack of the foil.
Reverse input rotation to move backward.
This video is made based on the video
• DOEN: O-foil
Inventor files of this video:
www.mediafire.com/file/olm6gh...

[@user-qo2cp4kf9g]

i'm from the Netherlands, didn't know this one. Very interesting! Also compliments to this channel, very educative and inspiring! Thank you.

[@MechanismAnimation]

Good design.😎

[@markifi]

interesting! lends itself to pedaling

[@jorgeconcheyro]

So, Doctor, you saw the video and based on that, you invented all the missing parts in the mechanism... Genius!!. Avoiding cavitation is always a great improvement.

[@thang010146]

A ship engineer from the Netherlands showed me that video and asked me to animate it.

[@Ihaveunusualtaste]

@@thang010146please do so! That would be so cool!

[@steelapplepipeapfel995]

Neat !

[@carnscabs]

Wave to rotary?

[@thang010146]

Please read the video description.

[@jorgeconcheyro]

If the vertical rail could be removed and replaced by some bar linkage system, it would be perfect...

[@thang010146]

It's too difficult for me.

[@jorgeconcheyro]

@@thang010146 Peaucellier linkage? I just discovered LinKage software, I'll be able to reproduce your designs Doctor :)

[@thang010146]

A Peaucellier linkage could be used but I'm afraid the propulsion would become too complicated.

[@waterenwind09]

your grasshopper mechanism would work as well I guess @@thang010146

[@steubens7]

@rctestflight 👀

[@an11thHR00-lf1ff]

nice !!!