[TorpX]

Originally Posted by Fahnenbohn

Hello,

There is something I would like A LOT to improve : the ships' behaviour at sea. They move too much, they look like plastic toys ! I've tried to change parameters in ship.sim file but without result. For example, I changed the mass, gc height, LR and UD (drag).

Does anyone have a solution to correct this problem ? That would be GREAT !

I was modding the ships' physics in SH4 a little while ago. This may or may not apply to SH3:

The LR (left-right) drag only affect turning. The UD (up-down) drag is for pitching.

I generally increased mass of merchant ships, assuming them to be heavily loaded.

Ship stability:

If you want to increase the extent of roll increase the gc height, if you want to decrease the roll, decrease the gc height. However, if you like the extent of roll, but want to make it slower, increase the draft slightly (the surface draft). Sometimes a very small change here will improve the stability a lot.

I had started out trying to manipulate the submerged draft of the surface ships, but ended up setting all of them to zero. The reason is that I found, if the submerged draft is not deep enough, the ships do not sink by flooding. That is, when torpedoed, they would settle down some, then sit there, impervious to flooding. Not good.

I had to do the ships stability mostly by trial and error, not having a mathematical guideline for this. It was tedious, to say the least.