TMO S Class Dive times?

rein1705 · 04-08-11, 12:06 AM

Hey guys. Im assigned to (was assigned to) the S-44 in Aug 1942 doing lifeguard duty in the Solomins. My radar picks up aircraft at roughly 20,000 yards the moment it does and i am informed of this theres 3 things i can do Dive, Dive to PD, or Crash dive... now most wouldnt think Crash dive but if i order any other option it takes my boat roughly 3 minutes to to reach 35-40 FT! though, there not a veteran crew and its in TMO 2.1
so what it comes to is im almost spotted or i actualy "SPOT" the aircraft before my boat is under and i get strafed and bomed a lot more than i think i should be. Prehaps i am wrong? is that normal for anyone else? and what was the real life avrage time to dive an S class sub? S-18/S-41 I thought the S-boats were hard enough to keep aflote in the first place diveing shouldnt be much of an issue unless its caused by how fragile they are wouldnt want to take her down too fast i understand... if i order crash dive she goes down in under a minute.

TorpX · 04-08-11, 01:15 AM

I had the same problem some time ago. Oddly enough, this was with RFB. It took about 5 or 6 min to get to periscope depth. Lots of fun! I finally decided that it couldn't be normal and downloaded a fresh copy of RFB to fix the problem. Even with a green crew you should be able to get to 50 ft. in 65 to 75 sec. for a normal dive. Faster with a crash dive. Hope this helps.

rein1705 · 04-08-11, 01:25 AM

Prehaps i need to redownload TMO 2.1? as i remember i had a heck of a time trying to find the latest version.

Armistead · 04-08-11, 04:46 AM

Just order crash dive. You should soon be able to get the special ability man to dive faster, so take him and you'll get under. Still, this is not historical. This article explains it fairly well.

"

In an effort to preserve surface buoyancy, the Government design split the main ballast tanks into upper and lower sections, each with their own vents and flood ports. This had the unfortunate side effect of making the Government design very slow divers. The upper tanks would not begin to flood until the boat had settled enough to submerge the upper flood ports. The later boats had additional upper flood ports added, but this only resulted in a minor decrease in dive times. The Government boats were rated at 100 seconds from fully surfaced to periscope depth, as compared to the EB boats at 75 seconds. In an apparent attempt to further alleviate this problem,

S-8 and S-9 were modified during construction, moving the bow planes to below the water line and making them fixed in place and non-retractable.
National Archives via Daniel Dunham & Navsource "

Even with the bow planes below the water line the average dive was about 80 seconds. In game with crash dive seems I timed it at 45 seconds, but I may have had the special ability guy.

Add to this that they're slow, take forever to charge the battery, but what a beautiful boat and fun to play with. Different versions of the S boat were made with different configurations, but they were all slow divers. TMO gives you a faster dive time of about a minute using crash dive.
Understand in the war there was really no such thing as crash dive.

The complete article.
http://navsource.org/archives/08/pdf/0829291.pdf

Ducimus · 04-08-11, 11:09 AM

I wonder if it ever occured to anyone that I was trying to make the S boat dive to a speed that was more historically correct then it was previously.

(Note my choice of words in that sentence very carefully)

rein1705 · 04-08-11, 11:57 AM

I was just unaware of the real time it took to dive the S-class boats, i didnt mean to come off as critical to your work in the least.

I like your attention to detail in TMO, and now that i know the RL times i was in err in asuming she'd sink like a rock like in stock SH4. See i thought i had gone and done something wrong to the boat or just wasnt doing it right. I'll still take out the S-class boats on partols, there still my faves.

TorpX · 04-09-11, 03:13 AM

Quote:

Originally Posted by Ducimus

I wonder if it ever occured to anyone that I was trying to make the S boat dive to a speed that was more historically correct then it was previously.

(Note my choice of words in that sentence very carefully)

He said it took 3min. to get to 40 ft. Did you intend to make the dive this slow?

Quote:

Personally, i dislike S boats. I liken them as the fleet boat equivlant of a Type II uboat. Too small, too poorly armed, and a waste of my time. I freely and openly admit, they are the red headed step child in TMO.

We never would have guessed.

While on the subject of S-boats, does anybody know what the turning performance was?

04-08-11, 12:06 AM	#1
rein1705 Samurai Navy Join Date: Mar 2010 Location: somewhere in the Past. Posts: 582 Downloads: 541 Uploads: 0	TMO S Class Dive times? Hey guys. Im assigned to (was assigned to) the S-44 in Aug 1942 doing lifeguard duty in the Solomins. My radar picks up aircraft at roughly 20,000 yards the moment it does and i am informed of this theres 3 things i can do Dive, Dive to PD, or Crash dive... now most wouldnt think Crash dive but if i order any other option it takes my boat roughly 3 minutes to to reach 35-40 FT! though, there not a veteran crew and its in TMO 2.1 so what it comes to is im almost spotted or i actualy "SPOT" the aircraft before my boat is under and i get strafed and bomed a lot more than i think i should be. Prehaps i am wrong? is that normal for anyone else? and what was the real life avrage time to dive an S class sub? S-18/S-41 I thought the S-boats were hard enough to keep aflote in the first place diveing shouldnt be much of an issue unless its caused by how fragile they are wouldnt want to take her down too fast i understand... if i order crash dive she goes down in under a minute. __________________ "Diesel Pig" Not so long ago...

04-08-11, 01:25 AM	#3
rein1705 Samurai Navy Join Date: Mar 2010 Location: somewhere in the Past. Posts: 582 Downloads: 541 Uploads: 0	Prehaps i need to redownload TMO 2.1? as i remember i had a heck of a time trying to find the latest version. __________________ "Diesel Pig" Not so long ago...

04-08-11, 11:57 AM	#6
rein1705 Samurai Navy Join Date: Mar 2010 Location: somewhere in the Past. Posts: 582 Downloads: 541 Uploads: 0	I was just unaware of the real time it took to dive the S-class boats, i didnt mean to come off as critical to your work in the least. I like your attention to detail in TMO, and now that i know the RL times i was in err in asuming she'd sink like a rock like in stock SH4. See i thought i had gone and done something wrong to the boat or just wasnt doing it right. I'll still take out the S-class boats on partols, there still my faves. __________________ "Diesel Pig" Not so long ago...

04-08-11, 01:15 AM	#2
TorpX Silent Hunter Join Date: Sep 2010 Posts: 3,975 Downloads: 153 Uploads: 11	I had the same problem some time ago. Oddly enough, this was with RFB. It took about 5 or 6 min to get to periscope depth. Lots of fun! I finally decided that it couldn't be normal and downloaded a fresh copy of RFB to fix the problem. Even with a green crew you should be able to get to 50 ft. in 65 to 75 sec. for a normal dive. Faster with a crash dive. Hope this helps.

04-08-11, 04:46 AM	#4
Armistead Rear Admiral Join Date: Dec 2008 Location: on the Dan Posts: 10,880 Downloads: 364 Uploads: 0	Just order crash dive. You should soon be able to get the special ability man to dive faster, so take him and you'll get under. Still, this is not historical. This article explains it fairly well. " In an effort to preserve surface buoyancy, the Government design split the main ballast tanks into upper and lower sections, each with their own vents and flood ports. This had the unfortunate side effect of making the Government design very slow divers. The upper tanks would not begin to flood until the boat had settled enough to submerge the upper flood ports. The later boats had additional upper flood ports added, but this only resulted in a minor decrease in dive times. The Government boats were rated at 100 seconds from fully surfaced to periscope depth, as compared to the EB boats at 75 seconds. In an apparent attempt to further alleviate this problem, S-8 and S-9 were modified during construction, moving the bow planes to below the water line and making them fixed in place and non-retractable. National Archives via Daniel Dunham & Navsource " Even with the bow planes below the water line the average dive was about 80 seconds. In game with crash dive seems I timed it at 45 seconds, but I may have had the special ability guy. Add to this that they're slow, take forever to charge the battery, but what a beautiful boat and fun to play with. Different versions of the S boat were made with different configurations, but they were all slow divers. TMO gives you a faster dive time of about a minute using crash dive. Understand in the war there was really no such thing as crash dive. The complete article. http://navsource.org/archives/08/pdf/0829291.pdf

04-08-11, 11:09 AM	#5
Ducimus Rear Admiral Join Date: May 2005 Posts: 12,987 Downloads: 67 Uploads: 2	I wonder if it ever occured to anyone that I was trying to make the S boat dive to a speed that was more historically correct then it was previously. (Note my choice of words in that sentence very carefully)