Real survival method for Flooding ?

bsmooth · 03-19-21, 01:01 PM

I ran into this a few times and wondered If it would work in real life.
Say you take a few depth charges, and you start to have flooding in the forward torpedo room.
You start that long slow downward journey to the bottom of the ocean.
I remembered that Movie Ice Station Zebra, where they run into the same problem and they go full reverse "put it into the red".
I've tried that in SH4 and it really works, and I've saved my sub a few times using this method until the bulkheads are fixed.
But would it really work in a real sub ?

Bubblehead1980 · 03-19-21, 04:47 PM

Quote:

Originally Posted by bsmooth

I ran into this a few times and wondered If it would work in real life.
Say you take a few depth charges, and you start to have flooding in the forward torpedo room.
You start that long slow downward journey to the bottom of the ocean.
I remembered that Movie Ice Station Zebra, where they run into the same problem and they go full reverse "put it into the red".
I've tried that in SH4 and it really works, and I've saved my sub a few times using this method until the bulkheads are fixed.
But would it really work in a real sub ?

Depends. What setup at you running? Stock game? mods like TMO FOTRS? RF? Mods adjust flooding etc at times. However, in general, you have it correct.

Scenario A: Depth charge blows out a forward compartment and have flooding, sub takes down angle and can't stop your plunge, reverse engines full, back emergency if needed, sometimes if flooding is mild back 1/3 is enough, set a shallow depth so once past that depth, the planes are kept on rise. Battery consumption becomes a concern during the long repair and pumping process so have to watch it. Boats have a safety factor built in(many went much much deeper in real life when damaged etc than planned. Example, Porpoise Class USS Pollack, read where she went to over 500 feet when lost control during a combat dive. Old riveted hull was rated at 250 feet test depth. Gato's go pretty deep as well, Balao and Tench cab way off a 600 ft depth gauge before crush depth. I do not know their crush depths (Don't want to know) but have been forced far below their rated 412/450 and way off the 600 ft depth gauge.

Scenario 2: Stern compartment such as torpedo or engines room flooded, down by stern. Easier to control, find the proper speed, make sure diving planes kept on rise to avoid going to deep. If a centered compartment such as control room or conning tower flood, won't have too much or an angle but will find you sink somewhat evenly,but need speed and rise on planes to keep level. Basically, all can do is fight to keep control while DC party makes repairs.

Armistead · 03-19-21, 09:29 PM

If you can't hold depth it's the best thing to do, go in reverse of the tilt. Just a few knots of speed going in the direction of the flooding can send you down fast. If things are bad sometimes you have to bob up and down if escorts are after you. I also found hitting P for periscope will help bring you up faster than just changing depth. Usually if I'm going down by the bow I'll be in reverse and when the escort makes its run I'll full reverse and blow tanks. You have to head gain control and head back down at about 150 ft. Just don't head down too fast or you can't pull out in time.

Torpex77 · 03-19-21, 11:29 PM

The Only problem is the angle and obviously depth. Angle is a problem because if you exceed a certain angle the air in the ballast tanks (if you blew any air in them) stands to start spilling out at a severe up/down angle. But yes, propulsion would and has averted the "Plunge"

Nicolas · 03-20-21, 09:35 AM

During my playthroughs and single missions in tmo, i have had several times my sub go to crazy angles like 70 degress i don't know how the crew was able to do anything.

propbeanie · 03-20-21, 01:03 PM

Why... it's the training provided by the USN ~and~ the skipper's exemplary leadership, of course - cool, calm and collected when under pressure...

Of course, the Admiral wants to know how you let your boat get into such condition so often...

3catcircus · 03-20-21, 01:46 PM

Real flooding on a real submarine?

1. Stop the flooding using DC gear and start dewatering the compartment - using submersible pumps and the trim and drain systems.

2. Order up a bell, put some rise on the planes, make sure watertight doors are shut and dogged, and blow ballast if needed.

The shallower you can get as quick as you can get there will lower the rate of the flooding because of the reduced water pressure. As you pump overboard you get lighter - positive feedback loop.

The real issue is most people are going to be initially stunned by a jet of ice cold water rocketing in that instantly turns to mist making it very difficult to find the source - the DC trainer can only mimic real flooding to some extent - and it is terrifying how quickly it will come in during a deep dive.

Nicolas · 03-20-21, 02:13 PM

Quote:

Originally Posted by propbeanie

Why... it's the training provided by the USN ~and~ the skipper's exemplary leadership, of course - cool, calm and collected when under pressure...

Of course, the Admiral wants to know how you let your boat get into such condition so often...

03-19-21, 01:01 PM	#1
bsmooth Watch Join Date: Feb 2021 Posts: 20 Downloads: 3 Uploads: 0	Real survival method for Flooding ? I ran into this a few times and wondered If it would work in real life. Say you take a few depth charges, and you start to have flooding in the forward torpedo room. You start that long slow downward journey to the bottom of the ocean. I remembered that Movie Ice Station Zebra, where they run into the same problem and they go full reverse "put it into the red". I've tried that in SH4 and it really works, and I've saved my sub a few times using this method until the bulkheads are fixed. But would it really work in a real sub ?

03-19-21, 09:29 PM	#3
Armistead Rear Admiral Join Date: Dec 2008 Location: on the Dan Posts: 10,864 Downloads: 364 Uploads: 0	If you can't hold depth it's the best thing to do, go in reverse of the tilt. Just a few knots of speed going in the direction of the flooding can send you down fast. If things are bad sometimes you have to bob up and down if escorts are after you. I also found hitting P for periscope will help bring you up faster than just changing depth. Usually if I'm going down by the bow I'll be in reverse and when the escort makes its run I'll full reverse and blow tanks. You have to head gain control and head back down at about 150 ft. Just don't head down too fast or you can't pull out in time. __________________ You see my dog don't like people laughing. He gets the crazy idea you're laughing at him. Now if you apologize like I know you're going to, I might convince him that you really didn't mean it.

03-19-21, 11:29 PM	#4
Torpex77 Helmsman Join Date: Feb 2001 Location: Pennsylvania-Endless Moutains Posts: 106 Downloads: 72 Uploads: 0	Yes The Only problem is the angle and obviously depth. Angle is a problem because if you exceed a certain angle the air in the ballast tanks (if you blew any air in them) stands to start spilling out at a severe up/down angle. But yes, propulsion would and has averted the "Plunge" __________________ A Submarine Simulation should "simulate" Historical Reality as best as possible! No Excuse, because whatsoever your trying to simulate, is documented..somewhere!

03-20-21, 01:03 PM	#6
propbeanie CTD - it's not just a job Join Date: May 2016 Location: One hour from Music City USA! Posts: 9,738 Downloads: 439 Uploads: 2	Why... it's the training provided by the USN ~and~ the skipper's exemplary leadership, of course - cool, calm and collected when under pressure... Of course, the Admiral wants to know how you let your boat get into such condition so often... __________________ "...and bollocks to the naysayer/s" - Jimbuna

03-20-21, 09:35 AM	#5
Nicolas Commander Join Date: Jun 2007 Location: Uruguay Posts: 453 Downloads: 196 Uploads: 4	During my playthroughs and single missions in tmo, i have had several times my sub go to crazy angles like 70 degress i don't know how the crew was able to do anything.

03-20-21, 01:46 PM	#7
3catcircus Grey Wolf Join Date: Sep 2011 Posts: 952 Downloads: 246 Uploads: 0	Real flooding on a real submarine? 1. Stop the flooding using DC gear and start dewatering the compartment - using submersible pumps and the trim and drain systems. 2. Order up a bell, put some rise on the planes, make sure watertight doors are shut and dogged, and blow ballast if needed. The shallower you can get as quick as you can get there will lower the rate of the flooding because of the reduced water pressure. As you pump overboard you get lighter - positive feedback loop. The real issue is most people are going to be initially stunned by a jet of ice cold water rocketing in that instantly turns to mist making it very difficult to find the source - the DC trainer can only mimic real flooding to some extent - and it is terrifying how quickly it will come in during a deep dive.