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Originally Posted by crazypete
I noticed last night when I took a shell in the tail that, even though I had no flooding in the repair screen, the sub was now down hard at the tail and slowly sinking.
By the end, I was almost vertical, running the electrics at ahead standard to keep depth.
Either by the extra noise or the fact that the entire nose of the sub was now poking out of the water like an iceberg, this got me blasted to the moon. Then I saw real flooding of course 
but this begs the question:
Is this a new feature? What option turns on my hull % indicator? Can that hole be plugged with time and dmg control? Am I screwed for the rest of the patrol? |
Same thing happened to me in 1.1 on several occasions. Take damage. Superficial damage reported (decoy launcher, deck gun, etc.). No flooding. No hull damage message. One half of sub no longer buoyant. --> patrol over
Here is a theory I have: damage to trim/buoyancy tanks is modelled, but neither reported in messages or visualized in the damage control screens.
Flooding is visualized based on comparments within the pressure hull. Hull damage refers to the integrity of the pressure hull, not the outer hull. If the trim tanks on a sub are destroyed, the sub immediately loses a percentage of its buoyancy. While the loss of bouyancy as an overall fraction of total buoyancy remains constant, its effect is accelerated with increasing depth (but damage is not progressive). This would neatly explain why after my sub took damage from an aerial bomb and external components were destroyed, my sub took on a permanent down angle toward the rear. As I submerged further, the angle increased. However, I was able to maintain depth and surface using the engines. From that point on I could repeat the down angle dive over and over again, standing the sub nearly on its tail without progressive damage. However, this hidden damage was not repaired over time.
There is only one problem with this theory, when on the surface, the rear half of the sub did not sink. Possibly the buoyancy provided by trim tanks is only tracked below the surface?
But I will not hesitate to say the damage system might just be fundamentally bugged/broken.