The  ship   English Fast Pinnace  is very hard to hit and cannon fire go way past it. so it is very tough to sink without  manual aiming.  ai ship have some difficulty to hit it too.  i did a little recording to show what i meant.

I think this is because the model's center has a negative z coordinate, which is the height, so the ai aiming gets messed up.  I cannot fix that because it's model data and I am no modeler.