Submarine wont dive

[.TerO!]

As the topic says - my submarine wont dive.

My submarine got contact to 5 planes - I wanted to dive - but nothing - everything I tried - its still surfaced.

[Killerfish Games]

Subs take about 80 seconds to prepare to dive.

Jump into the museum with Tambor.
Press the steer down key several times to set depth to -60 ft.
You get a message Tambor is preparing to dive.
Press F9 to accelerate time.
Tambor dives after about 80 sec.

Also, if you have blown ballast, a submarine cannot dive again during that combat,

[Tikigod]

You can also manually counterflood the forward compartments in emergencies to dive faster. This will add additional weight to the nose of the submarine. This helps the sub dive almost immediately. Once submerged you can then dump the additional water.

I learned this from uboat movies when crew would run to the front torpedo compartments to help uboats dive faster and tried imitating it using the counterflood feature in War on the Sea. It actually worked to my surprise.

Also, keep a low profile as much as possible. The lower the profile you have on the water the faster you will dive (as your ballast is already flooded). You can partially surface at 10 ft instead of 0 ft.

0ft 1/2 to 3/4 of submarine is exposed to surface. (ballast not flooded, not ready to dive)
10ft is only conning tower. (ballast already flooded, ready to dive)
20ft-30ft is only periscope. (ballast already flooded, ready to dive)

[Steeltrap]

Originally posted by Killerfish Games:

Subs take about 80 seconds to prepare to dive.

Jump into the museum with Tambor.
Press the steer down key several times to set depth to -60 ft.
You get a message Tambor is preparing to dive.
Press F9 to accelerate time.
Tambor dives after about 80 sec.

Also, if you have blown ballast, a submarine cannot dive again during that combat,

Why on earth is it so long? That is close to DOUBLE what it took the USN boats at their worst early war and close to 3 times their best later in the war. It was, unsurprisingly, something they drilled on again and again and again.

Specifically, the Gato class took approximately 45-50 seconds to periscope depth in 1941. This was studied and various changes made such that the standard time by "mid-war" became 30-35 seconds.

They weren't even passed as "qualified for patrol" after a period of leave without going through a bunch of exercises at sea, which naturally included plenty of diving in a simulated emergency.

80 seconds? That's sheer nonsense.

I don't understand why details like this are SO far removed from what was known to be true.

[.TerO!]

Im coming from the Sim genre - and as Steeltrap allready stated - why does it take 80 seconds?!

[boris.glevrk]

Originally posted by Steeltrap:

Why on earth is it so long? That is close to DOUBLE what it took the USN boats at their worst early war and close to 3 times their best later in the war. It was, unsurprisingly, something they drilled on again and again and again.

Specifically, the Gato class took approximately 45-50 seconds to periscope depth in 1941. This was studied and various changes made such that the standard time by "mid-war" became 30-35 seconds.

They weren't even passed as "qualified for patrol" after a period of leave without going through a bunch of exercises at sea, which naturally included plenty of diving in a simulated emergency.

80 seconds? That's sheer nonsense.

I don't understand why details like this are SO far removed from what was known to be true.

You sound like that self-proclaimed US veteran.
I would also like to ask why Atlanta-class acts like an Aegis DDG, but who's gonna answer me?

Gato is bigger than German subs, and UBOAT just made Type VII dive in like.... 60-90 seconds? So I'd say there are stuff that can and cannot be done for a multitude of reasons.

[Steeltrap]

Originally posted by boris.glevrk:

You sound like that self-proclaimed US veteran.
I would also like to ask why Atlanta-class acts like an Aegis DDG, but who's gonna answer me?

Gato is bigger than German subs, and UBOAT just made Type VII dive in like.... 60-90 seconds? So I'd say there are stuff that can and cannot be done for a multitude of reasons.

If Atlanta class is acting like that, ask why. Who knows what will happen? You won't get an answer if you don't ask.

The fact that U-Boat features a boat load of bullshite is no reason to accept more here.
I imagine the dive time length is a parameter. If they set it at 90, they can set it at 50 or 45, then 30-35 in 1943.

[berserk45]

Originally posted by boris.glevrk:

Originally posted by Steeltrap:

Why on earth is it so long? That is close to DOUBLE what it took the USN boats at their worst early war and close to 3 times their best later in the war. It was, unsurprisingly, something they drilled on again and again and again.

Specifically, the Gato class took approximately 45-50 seconds to periscope depth in 1941. This was studied and various changes made such that the standard time by "mid-war" became 30-35 seconds.

They weren't even passed as "qualified for patrol" after a period of leave without going through a bunch of exercises at sea, which naturally included plenty of diving in a simulated emergency.

80 seconds? That's sheer nonsense.

I don't understand why details like this are SO far removed from what was known to be true.

You sound like that self-proclaimed US veteran.
I would also like to ask why Atlanta-class acts like an Aegis DDG, but who's gonna answer me?

Gato is bigger than German subs, and UBOAT just made Type VII dive in like.... 60-90 seconds? So I'd say there are stuff that can and cannot be done for a multitude of reasons.

To quote Wikipedia on the Gatos

"At the start of the war, these boats could go from fully surfaced to periscope depth in about 45–50 seconds... In an attempt to speed this process, additional limber, or free-flooding, holes were drilled and cut into the superstructure to allow it to flood faster. By midwar, these measures combined with improved crew training got dive times down to 30–35 seconds."

This was taken from The Fleet Submarine in the United States Navy: A Design and Construction History by John D. Alden, who was a former WW2 US submarine veteran, so there is credence to the argument that fleet boats could get under fast, at least much faster than what is seen in-game.

If you want to compare subsims, the Silent Hunter series had most fleet boats capable of submerging in around 40 seconds, with Type VIIs being able to submerge in 30 or under.

[boris.glevrk]

Originally posted by Steeltrap:

I imagine the dive time length is a parameter. If they set it at 90, they can set it at 50 or 45, then 30-35 in 1943.

What makes you do so? Dive time is more presumably more than just a number in a txt. It has to be more complicated than that, and that's exactly why I gave UBOAT as an example.

The reason why UBOAT has longer dive time is because it takes 30-40 second just for the sailor in charge to *walk to the valve and open it*. Hence it's not fixable just by modifying a number or something. I would assume something similar, albeit not as desperate, happening here.

[Steeltrap]

Originally posted by boris.glevrk:

Originally posted by Steeltrap:

I imagine the dive time length is a parameter. If they set it at 90, they can set it at 50 or 45, then 30-35 in 1943.

What makes you do so? Dive time is more presumably more than just a number in a txt. It has to be more complicated than that, and that's exactly why I gave UBOAT as an example.

It's one parameter. although it doesn't show as a direct value in seconds.

I found it and tested it with several settings.
Subs now dive ~55 seconds. Obviously could make it shorter but it's reasonable for the time period.

Probably gives IJN an advantage over accuracy as I don't believe they had air search radar on their boats yet it appears the timer starts the moment your aircraft spawn, NOT when they come within visual range.
I may be mistaken about the likelihood of IJN subs having ASR nor do I know its performance as I've not looked into it.

[boris.glevrk]

Originally posted by Steeltrap:

It's one parameter. although it doesn't show as a direct value in seconds.

Then it's not.
Anything beside "set a number to 60 and it dives in exactly 60 seconds" is not.

For the simplest example, perhaps you set the number to 60 and it *begin* to dive after 60 seconds, and then there is a time between *beginning* to dive and *actually considered submerged*, which may not be moddable at all.

[zzirSnipzz]

counterflood the bow and hey presto you have a fast diving boat

[Steeltrap]

Originally posted by boris.glevrk:

Originally posted by Steeltrap:

It's one parameter. although it doesn't show as a direct value in seconds.

Then it's not.
Anything beside "set a number to 60 and it dives in exactly 60 seconds" is not.

For the simplest example, perhaps you set the number to 60 and it *begin* to dive after 60 seconds, and then there is a time between *beginning* to dive and *actually considered submerged*, which may not be moddable at all.

Call it what you will but the fact remains I changed that SING:E value and the result is the time taken to dive is now something far more reasonable for the vessel and the period.

I've seen zero negative effects in any other element of which I am aware.

To be clear, when I said "it dives", the speed changes from the surface scale (up to 21 knots) to the submerged one, and the boat continues to dive as normal. At ~65 seconds it will be at something like 50' depth and continuing.

It does exactly what it used to, only at about 50 seconds v 80. That's good enough for me.

If others don't like it they don't have to change anything.