Wondering if Ship Speed has been taken into consideration in regards to the Damage model (not talking about Engine compartment and Prop hits). Specifically, what affect large amouts of Water (read Flooding) has on a ships speed. A Ship that takes on water, will in fact slow down due to two factors...one being excess weight of the water....and two being that a heavier ship displaces more water therefore having more of the hull under the water line hence increased drag (that the engines must over come to maintain speed). Now if a ship is traveling at its full speed, taking a torpedo hit should cause supstantial flooding and WILL slow down. Now how much it will slow down is a good question...and I am not a math major and do not have an equation for that.
This is important in regards to SH3. A Ship that is torpedoed in a convoy (fast) should in most cases not be able to maintain the speed of the convoy. A Ship that is fully loaded and low in the water already....should really feel the effects of flooding...thus slowing it down and falling out of a convoy.
What about heavy seas and ships falling out of convoys......a good portion of ships were sunk as stragglers from convoys (Uboat.net) (as well as damaged ships as mentioned above).
Not all damaged ships should fall out of convoys....but I would venture to say that a good amount would. Not all ships should fall out due to weather....but some smaller ships should most definitely struggle to stay in formation.
I'm assuming by now that if the damaged model could be altered to fix this stuff if would have by now...or if it has not...maybe there is still hope....or for a better damage model for future installations of SH.