Here is some progress on the buoyancy system in the Ocean Waves project
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Hi there @zubetto,
Hope you’re well and having a wonderful week so far 
I had to sit and watch the whole video - it was really relaxing. However, it was the technical elements of this that made me nerd out. This system would be SO cool to experience in a pirate game or in a kayak immersion game. So genuinely awesome to think of. Did a specific project inspire you to create this?
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Hello @PresumptivePanda! Thank you for your comment, interest and the time you dedicated to the whole video (aside from the informative content, which could probably be squeezed into a much shorter amount of time, I also wanted this video to have a sense of serenity, so I am really glad you described it as relaxing)!
The ultimate goal is still very vague, but I think it is somewhere between flight simulators, KSP and sci-fi. All these genres, as well as the breathtaking footage of the Earth from the ISS and the great resources that can be found here, inspired me to do this.
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Well, once you’ve decided on just what you’ve decided to make the “ultimate goal” be sure to share it here. I’d love to watch as the project progresses
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This video shows further progress on the buoyancy system. The main change is the sphere-foil model used to calculate the forces acting on the pontoons.
The first part of the video shows the watercraft with spherical pontoons for which buoyant force and drag force are calculated (the same watercraft as in the previous video). The drag coefficient of spherical pontoons does not depend on the direction of their velocities relative to the flow. In contrast, the drag coefficient of sphere-foil pontoons may depend on the velocity direction relative to the flow. In addition, the lift force is also calculated. All this together allows the sphere-foil model to be used to simulate hydrofoil crafts, which is demonstrated in the second part of this video.
Of greatest interest in this context are the following values, displayed in the HUD in the lower right corner of the screen:
orbital_speed, that is, the speed relative to the ground;
thrust_max in m/s2, which should be multiplied by the mass of the watercraft (which is about 500 kg) to obtain the thrust in Newtons;