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Sep 22, 2021 · Imagine that it tacks (not gybes because the apparent wind is ahead of the mast) several times so that its' average course is directly downwind.
Jan 1, 2009 · Velocities. The figure above shows a boat moving with water-speed V , in the same direction as a slower wind.
Oct 29, 2008 · Search Sailing Anarchy under DDFTTW.(Dead Downwind Faster Than The Wind). It was one of the most discussed subjects ever. Omeron, Oct 30 ...
Oct 20, 2008 · Eta = F * V /(T*w), where F is the thrust force (N), V the velocity at the propeller ("without prop", m/s), T torque (Nm) and w rotational speed ...
Look at the debate that something like the concept of DDFTTW can generate. Most people's intuitive feel is that it cannot not work so they are sceptics. Or ...
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