As yuo can see in the photo below the machine it’s floating!
To achieve to this goal i have followed this steps :
luckily i have found that nice engine that had already on it the right arm to move properly the oar
after fixed the motor the next step was built a performative fin, the idea for that was to make a frame made of metal and use a plastic bag here some photo of the step :
now the last step it’s to check if can also moove not only floating
has you can see there is some problem with the movement, it’s not very efficent.
This is something that i wil try to fix tomorrow