How do you avoid being found again after a depth charge run?

[Fifi]

Originally Posted by Skinny_Huesudo

I forgot to include this on the original post.

Can aircraft see you if you are at periscope depth with no periscopes or snorkel or anything up?

No they can’t.

[John Pancoast]

Originally Posted by Skinny_Huesudo

I forgot to include this on the original post.

Can aircraft see you if you are at periscope depth with no periscopes or snorkel or anything up?

In real life depending on water conditions, yes, and they did. In the game, no in my experience.

[bstanko6]

@John Pancoast...

You are correct, thermal layers are not modeled in this game. The designers went with profile instead! The profile of your boat when being pinged or “listened” to by destroyers will literally mean life or death to you.

In my profile video, I made a strong point about how your boat’s survivability drops when more than one escort surrounds you.

[John Pancoast]

Originally Posted by bstanko6

@John Pancoast...

You are correct, thermal layers are not modeled in this game. The designers went with profile instead! The profile of your boat when being pinged or “listened” to by destroyers will literally mean life or death to you.

In my profile video, I made a strong point about how your boat’s survivability drops when more than one escort surrounds you.

Though I believe Hemisent's thermal layer mod is part of SH3 Commander. Used to be anyway.

Profile was important in real life too; yeah, more than one escort pretty much means your profile is going to be wrong to some escort.

"Depth charges in the water !" <g>

[Skinny_Huesudo]

Originally Posted by Fifi

No they can’t.

Originally Posted by John Pancoast

In real life depending on water conditions, yes, and they did. In the game, no in my experience.

Thanks. I'm a lot less paranoid now

[John Pancoast]

Originally Posted by Skinny_Huesudo

Thanks. I'm a lot less paranoid now

"Paranoia runs deep. Into your life it will creep. It starts when you're always afraid. Step outta line, the escort come and they blow you away." <g>

[bstanko6]

Although thermal layers are not modeled, the sea state can have a nasty effect on your stealth.

The rougher the seas, the more chance of Broaching the surface, which literally means all surrounding surface units will see you during an attack. Even just a little of your tower pokes out of the water, sends the escorts into crazy mode!

Be careful! You may need to go deeper than periscope depth, and that means having the scope washed out more!

But, with a rougher sea, the escorts have a harder time detecting you with ASDIC.

Good luck!

[LGN1]

Originally Posted by Skinny_Huesudo

Thanks. I'm a lot less paranoid now

See here:


https://www.subsim.com/radioroom//sh...&postcount=626





Let me quote:
"The MAD-mod (MAD-sensor by LGN1).
This wonderfully-named mod provides selected American Catalinas with a MAD (magnetic anomaly detector) sensor. The MAD sensor is not very sensitive, and it has a short range, but it works day and night to detect the unexpected magnetic field of a submerged U-boat (functions to at least 100m depth) as the Catalina aircraft follows its scripted path overhead. If detected, the Catalina will attack immediately with bombs - and your U-boat will know nothing about it until the bombs start falling around. Pretty scary! Even the TC will not drop when this happens. Your only warning will be if you are using the SH3 Noise Meter, which will turn suddenly red - and you should not be using the Noise Meter for realistic play anyway."

[John Pancoast]

Originally Posted by LGN1

See here:


https://www.subsim.com/radioroom//sh...&postcount=626





Let me quote:
"The MAD-mod (MAD-sensor by LGN1).
This wonderfully-named mod provides selected American Catalinas with a MAD (magnetic anomaly detector) sensor. The MAD sensor is not very sensitive, and it has a short range, but it works day and night to detect the unexpected magnetic field of a submerged U-boat (functions to at least 100m depth) as the Catalina aircraft follows its scripted path overhead. If detected, the Catalina will attack immediately with bombs - and your U-boat will know nothing about it until the bombs start falling around. Pretty scary! Even the TC will not drop when this happens. Your only warning will be if you are using the SH3 Noise Meter, which will turn suddenly red - and you should not be using the Noise Meter for realistic play anyway."

Don't tell him about the FIDO either <g>

[Skinny_Huesudo]

Originally Posted by LGN1

See here:


https://www.subsim.com/radioroom//sh...&postcount=626





Let me quote:
"The MAD-mod (MAD-sensor by LGN1).
This wonderfully-named mod provides selected American Catalinas with a MAD (magnetic anomaly detector) sensor. The MAD sensor is not very sensitive, and it has a short range, but it works day and night to detect the unexpected magnetic field of a submerged U-boat (functions to at least 100m depth) as the Catalina aircraft follows its scripted path overhead. If detected, the Catalina will attack immediately with bombs - and your U-boat will know nothing about it until the bombs start falling around. Pretty scary! Even the TC will not drop when this happens. Your only warning will be if you are using the SH3 Noise Meter, which will turn suddenly red - and you should not be using the Noise Meter for realistic play anyway."

Paranoia increases rapidly...

[Skinny_Huesudo]

Alright, so to summarize what I've understood:

• silent running isn't really silent. It's more like "would you stop making so much damn noise" running
• crawling at low RPMs is the quietest way of moving
• the importance of your profile when being pinged
• heavy sea states reduce detection range against contacts at periscope depth
• active sonar is not omnidirectional, so even if you hear the pinging, it doesn't mean it was pointing your way
• escorts can't use passive hydrophones while they are pinging
• escorts can't ping or hear you when they are on top of you making their run. Good time to go ahead flank and change depth
• depth charge explosions disturb the water and reduce escorts sensor capacity for some time (how much?)
• and finally, and most important, facing more than one escort complicates things A LOT

[John Pancoast]

Originally Posted by Skinny_Huesudo

Alright, so to summarize what I've understood:

• silent running isn't really silent. It's more like "would you stop making so much damn noise" running
• crawling at low RPMs is the quietest way of moving
• the importance of your profile when being pinged
• heavy sea states reduce detection range against contacts at periscope depth
• active sonar is not omnidirectional, so even if you hear the pinging, it doesn't mean it was pointing your way
• escorts can't use passive hydrophones while they are pinging
• escorts can't ping or hear you when they are on top of you making their run. Good time to go ahead flank and change depth
• depth charge explosions disturb the water and reduce escorts sensor capacity for some time (how much?)
• and finally, and most important, facing more than one escort complicates things A LOT

- correct about silent running. Pumps, etc. still "make" noise. AOD had an option to even turn that noise off at the price of water slowly leaking into the boat, but SH3 does not.

- heavy sea states reduce detection ability at all depths.

- depth charge explosions have no affect on an escort's sensor capacity. They did in real life but not in the game.
There are mods for this (may be problematic though; ctds) and NYGM simulates it with their sensor work.

- the AI can only use one sensor at a time; active (sonar) or passive (hydrophones). Not that way in real life I don't believe, but is so in the game.

- another tip; just because your sound man says "Depth charges in the water" that doesn't mean they're going to be close to you.
Sometimes the AI will drop where it last knew you were, i.e., not where you are now.

[bstanko6]

Always assume the pinging is hitting you! And you are right... if the escort is pinging, he is not listening... but if there are 2 escorts, one will be listening.

[Skinny_Huesudo]

Originally Posted by John Pancoast

- correct about silent running. Pumps, etc. still "make" noise. AOD had an option to even turn that noise off at the price of water slowly leaking into the boat, but SH3 does not.

I think either H.Sie's patch or GWX adds this.

Originally Posted by John Pancoast

- depth charge explosions have no affect on an escort's sensor capacity. They did in real life but not in the game.
There are mods for this (may be problematic though; ctds) and NYGM simulates it with their sensor work.

I was hoping all the explosions would give me one minute or so to move away before the escorts could hear me again

[John Pancoast]

Originally Posted by Skinny_Huesudo

I think either H.Sie's patch or GWX adds this.



I was hoping all the explosions would give me one minute or so to move away before the escorts could hear me again

Nothing in H.sie's patch of GWX does this that I know of. NYGM simulates it by a feature that if your sub is going one knot, it will very slowly sink.