360º Tail Pod
In the future the Tail Pod will compete with the propeller.
Wave propulsion? Have anybody had some information of that the propulsion force is produced by the waves rolling the boat?
Electrical Sculling Drive with forward and backward propulsion. (Prototype) For small Boats
I like to have a 100/100 motorsailor not a 50/50 motorsailor.
What is the difference?
On displacement boats it is expensive to run with engine at hull speed S/L Ratio 1.34.
If you run at S/L Ratio 1.20 you save 50 % in fuel...
Many times it is useful to have a simple program to calculate the most important factors for Displacement hull , Semi displacement hull and...
This is a new thread where you can explain your opinion of what is flapping propulsion. Is it better than propeller propulsion? What is...
If I know from calculation that my boat need 40 HP to reach hull speed, How big sails do I need to make hull speed with 15 knots wind?