As expressed, a crit diving sub can avoid damage from DC's altogether and also disappears off of sonar. When the sub reemerges from crit dive, they will be stationary, and will therefore still be quite difficult to detect under the new battery system. Now, most ASW ships will OH towards a sub at the last moment in order to reduce the chance that they will be torped. This means they will not be able to detect the sub for a short while with sonar, and usually will circle the subs last known position and continually drop DC's in hopes they'll either a) Hit the sub before they can complete their crit dive, b) Force the sub to stay in crit dive for far too long, or c) Catch the sub as they are reemerging.
Either way, if a sub manages to escape into a crit dive, there's a decent chance the DD will accidentally begin to wander away from where they lost contact with the sub, and it will be able to escape or, worse, torp the DC'ing ship. If a DD has to -stop- on top of a sub in order to have a chance of detecting it after it reappears from crit dive, not only will it be very vulnerable to the enemy in the area, but they will suffer massive damage from self-inflicted splash from depth charges. I'm fine with reducing DC damage, but they shouldn't dud, and they most certainly should not cause damage to the ship dropping them.
|