[silent marshal]

Originally Posted by LemonA

What should be the drift in m/s for the type VIIC if the wind is 12m/s?

There are a couple of formulas which factor the viscosity of the surrounding water in (counteraction). But I think, we should keep things simple. For example just determine that a windforce with 12m/s will result a drift of the boat (independent of the boat's heading in relation to the wind vector) of, lets say: 1m/min. Is this too much? Is it too little? I depend on the experience of real-life skippers. They can estimate the effect best. In the same way, the ocean current could be considered.

The aim is not to create a finite element simulation but the objective factors have an influence on dead reckoning.

@TDW: nice to have a pro on board!! I can't rate what modifying .exe means - but it sounds to be hard work. So is it principally possible to consider such "outer" forces?
There are lifeboats in SH5 - how are they moved/propelled? Maybe a function similar to this can solve the problem.

Hope to get some good news...