Just one to this
GREAT JOB!!
Gerhard

in reply 29 ,  I had not seen! On the photo 2 the dawns are cut in bevel

Essays of propulsion
https://www.youtube.com/watch?v=PJdlRVlfGhw

Seems to be very high revs? 
Greetings
Gerhard

It is true On youtube we have an impression of speed, it turns more or less in 70 tours mn it is really too fast. ( 45 maxi tours)  the Waves along the hull are realistic .
In my video he seem less speedboat .
bye

hello all
Navigation which is well .
https://www.youtube.com/watch?v=r-KUn4OMaEU

Hello,
Here is half a wheel makes with a 3D printer, fine and solid .

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