[REL] Tench Class and 1945 Start Mod

[sb1171]

This is my first go at modding!

Added the Tench Class. Uses the model, skin and capabilities of the Balao. (Same way that the stock Gar Class is related to the Tambor).

The following boats are included: Tench, Thornback, Tigrone, Tirante, Trutta, Toro, Torsk, Quillback, Argonaut, Runner, Conger, Cutlass, Diablo, Medregal, Requin, Irex, Sea Leopard and Odax. I think this accounts for all the Tenches commissioned before the war ended.

Also added the ability to start a career in 1945 (so you can start one with the Tench). I think I have got the upgrade class right so it should be offered as an upgrade in other campaigns when it is historically available (not tested yet).

Tench is available in quick missions but I have not modded any of the single patrols to include it.

Mod works with JSGME. (31/3/07 - may be an issue with vista. see readme file included. If you installed this mod and did not see 1945 campaign start available this will fix it)

Seems to work all OK, but use at your own risk!

http://files.filefront.com/TenchClassModzip/;7085855;/fileinfo.html

31/3/07 Download link updated to include readme file.

[WilhelmSchulz.]

screenes?

[sb1171]

I made the claim that this works with JSGME. This may not be the case on vista with UAC running. It may be necessary to install the following three files manually if you run vista:

Data\UPCData\UPCCampaignData\CareerStart.upc
Data\UPCData\UPCCampaignData\Flotillas.upc
Data\Roster\Names.cfg

This is because these overwrite current files and UAC will prompt for the overwrite for these files. (Back up first!)

The rest of the files in the mod are new files so should install with JSGME no problem.

[sb1171]

Some screens here:

http://gallery.filefront.com/sb1171/83503/

They dont appear very clearly on filefront, right click and "save as" if you want to read the text in the screen shots!

In game the Tench class is identical graphically to the Balao.

[WilhelmSchulz.]

Is the torpedo loadout the same? The Trench carried 4 more fish.

[Sailor Steve]

Is the torpedo loadout the same? The Trench carried 4 more fish.
TENCH!

[sb1171]

Is the torpedo loadout the same? The Trench carried 4 more fish.

I did not know this. Have you got a source for this. All references I have found state 24 fish (same as balao).

At present torp loadout is the same. Not sure how easy it is to increase it, but if you are correct, I will see if I can change the load out.

[Mush Martin]

Tench did have extra torps also tench was a two deckgun ship

the major advance of tench though was in fabrication whereby
she came by a much better service depth due to advances in
welding techniques.

[WilhelmSchulz.]

Tench did have extra torps also tench was a two deckgun ship

the major advance of tench though was in fabrication whereby
she came by a much better service depth due to advances in
welding techniques.
I have looked and not that manny had 2 DG's

[sb1171]

Deck Guns: The stock game has 5in guns available in 1945. You can install 2 of these to any sub if you have enough renown. (you can only man the fore gun yourself - you have to leave the crew to fire the aft). So yes you can have two deck guns.

Torpedoes: I can increase the torpedo loadout if this is how it should be. I still can't find a reference that Tench class boats carried more than 24 torps other than the Silent Hunter 1 manual, and I thought they may have added extra torps to make the Balao to Tench upgrade worth it from a game play perspective? (The same thing applies here so I would like to increase the load out if it is historically correct). Can anyone point me to a reference? Would also need to know if the extra torps should be forward or aft.

Depth: Sources reference stronger steel/construction, but the test depth still remains the same as Balao in every source I can find (400ft). Should the crush depth be increased? If so by how much?

[WilhelmSchulz.]

Depth: Sources reference stronger steel/construction, but the test depth still remains the same as Balao in every source I can find (400ft). Should the crush depth be increased? If so by how much?

Both the Balao and Trench classes could make it to 600 ft. But only because thats how far the depth guage went.

[Sailor Steve]

According to Padfield one of the best-kept secrets of the war was that the Balao pioneered the use of STS (armor) for the pressure hull. Another source (which I will supply this afternoon) states that they estimated the Balao and Tench classes would be good to 900 feet. No official verification, though.

Both the Balao and Trench classes could make it to 600 ft. But only because thats how far the depth guage went.
TENCH!

[nimitstexan]

Tench did have extra torps also tench was a two deckgun ship

the major advance of tench though was in fabrication whereby
she came by a much better service depth due to advances in
welding techniques.
I have looked and not that manny had 2 DG's

None of the photos I have of Tench boats show 2 deck guns . . .

[Mush Martin]

Tench did have extra torps also tench was a two deckgun ship

the major advance of tench though was in fabrication whereby
she came by a much better service depth due to advances in
welding techniques. I have looked and not that manny had 2 DG's
None of the photos I have of Tench boats show 2 deck guns . . .

Allow me a double check Ill be back.

[Mush Martin]

Well Im not to big to say im wrong its a 40 and doesnt appear
to have held the deck osition often or much sorry dude.

[Growler]

I don't have SHIV, but I have to say: Well done for adding the Tench-class to the game! I was sadly disappointed to find out SHIV had shipped w/o it; so much so, in fact, that it influenced my decision not to buy the game. (Well, OK, a PC that falls just short of meeting the requirements helped, but...)

I spent last summer working aboard Torsk (SS-423) at Baltimore's Inner Harbor, spent several nights aboard as well, and developed a friendship with some of the Museum folks who work there, and I have to say, it's pretty amazing what those diesel boats could do, even in the relative infancy of the US Silent Service. So I admit to having a little bias. When I was a wee lad in Philly, I vaguely remember going aboard the Balao-class sub tied up at Penn's Landing, but that experience wasn't nearly as (pardon the pun) in-depth as my time working on Torsk.

And at 6'4", there aren't too many places I could even stand up straight; it doesn't take much of an imagination to picture 80 guys living and working in there, and the picture it paints isn't purty!

Well done all around! Now, if I can upgrade this rig, I might just have to buy the durned sim after all!:D

[AntEater]

According to Beach's "cold is the sea" (a novel, but Beach is quite accurate) it was possible to store two additional fish in the stern torpedo room of a Balao class by rearranging the interior and installing additional racks. Maybe that was also possible in the bow room, so that would account for 28 fish.
Maybe the Tenches were delivered with the capability of 28 torpedoes, but carried only 24 because 28 made the torpedo rooms too cramped, and in 1945, hardly any US sub had enough targets for 24 fish, let alone for 28....
Regarding the double deck guns, I suppose the twin gun config was removed after the war, and most tench photos might be postwar.
I tried to make a tench myself for FTT/Trigger Maru, with 28 torps, but it crashed SH4 whenever I started a missions.
It worked fine on the base torpedo screen, though...

[AirborneTD]

Don't know about the Tench torp capacity (yet), but they were standard with 1 deck gun (fore or aft) with the option for 2--the number and placement was up to the individual Captain. Most chose to go with 1.

Only 11 made war patrols when targets were scarce and none were lost.

[goose814]

According to the book "The Fleet Submarine in the U.S. Navy" by John D. Allen, the main difference between the Balao and Tench class was that the Tench had her ballast tanks rearrenged to eliminate the vent risers that went through both forward and after torpedo rooms. These risers vented the air from the ballast tanks and if they ruptured while submerged, would allow full sea pressure into those rooms, so it was decided that they be eliminated.

As for the torpedo loudout, the book states that "Stowage space for four more spare torpedoes was created by careful rearrangement of the torpedo rooms." Unfortunatley, it doesn't state the loadout per room. However, after reading through the USS Torsk website, it states that the forward room had 6 torpedoes loaded in the tubes and 12 on the racks, while the after room had 4 in the tubes and 6 on the racks.

Gus

[jmjohnson36]

Tench class submarines were an evolutionary improvement over the Gato (http://en.wikipedia.org/wiki/Gato_class_submarine) and Balao (http://en.wikipedia.org/wiki/Balao_class_submarine) classes, only about 35 to 40 tons larger, but more strongly built and with a slightly improved internal layout. Further improvements were made beginning with SS-435, which are sometimes referred to as Corsair class.
Initial plans called for 146 to be built, but 115 were cancelled in 1944 and 1945 when it became apparent that they would not be needed to defeat Japan (http://en.wikipedia.org/wiki/Japan). The remaining 31 were commissioned between October 1944 (Tench) and February 1951 (Grenadier).

General characteristics

Displacement: 1570 tons surfaced, 2428 tons (except SS.417-424 2416 & SS.475-515 2414) submerged
Length: 307 ft (93.6 m) waterline, 311 ft 9 in (95 m) overall
Beam: 27 ft 9 in (8.2 m)
Draft: 15 ft 3 in (4.6 m)
Test Depth: 400 ft (122 m)
Max Depth reported: 640 ft (384 m)
Speed: 20.25 knots (37.5 km/h) surfaced, 8.75 knots (16 km/h) submerged
Armament: •10 x 21 in (533 mm) torpedo (http://en.wikipedia.org/wiki/Torpedo) tubes (6 forward, 4 aft, 24 torpedoes)
• 1 × 5 in (127 mm)/25 caliber gun
• 2 x 40 mm cannon
Crew: 80-90 officers and men
Powerplant: •4 x 1350 hp (1 MW) diesel (http://en.wikipedia.org/wiki/Diesel) engines (10cyl Fairbanks-Morse 38D-1/8 (16cyl General Motors (http://en.wikipedia.org/wiki/General_Motors) 278A (http://en.wikipedia.org/wiki/Electro-Motive_Corporation) in SS.435-474)
•2 x 1370 hp (1020 kW) electric motors (General Electric (http://en.wikipedia.org/wiki/General_Electric) in SS.417-424, 435-474; Elliott Motor (http://en.wikipedia.org/wiki/Elliott_Motor) in SS.425-434, 475-520; Westinghouse (http://en.wikipedia.org/wiki/Northrop_Grumman_Electronic_Systems) in SS.521-550) (two 126-cell Exide (http://en.wikipedia.org/wiki/Exide) main storage batteries (http://en.wikipedia.org/wiki/Storage_batteries)) except SS.424, 475, 476, 478, 480-483, 485, & 488 Gould (http://en.wikipedia.org/wiki/Gould)
• two shafts
Range: •12,000 nm (http://en.wikipedia.org/wiki/Nautical_mile) at 10 knots (22,200 km at 18.5 km/h) surfaced;
•100 nm at 3 knots (185 km at 5.6 km/h) (maximum) submerged
Submerged Endurance: 48 hours Boats


Tench (SS-417) (http://en.wikipedia.org/wiki/USS_Tench_%28SS-417%29)
Thornback (SS-418) (http://en.wikipedia.org/wiki/USS_Thornback_%28SS-418%29)
Tigrone (SS-419) (http://en.wikipedia.org/wiki/USS_Tigrone_%28SS-419%29)
Tirante (SS-420) (http://en.wikipedia.org/wiki/USS_Tirante_%28SS-420%29)
Trutta (ex-Tomatate) (SS-421) (http://en.wikipedia.org/wiki/USS_Trutta_%28SS-421%29)
Toro (SS-422) (http://en.wikipedia.org/wiki/USS_Toro_%28SS-422%29)
Torsk (SS-423) (http://en.wikipedia.org/wiki/USS_Torsk_%28SS-423%29)
Quillback (ex-Trembler) (SS-424) (http://en.wikipedia.org/wiki/USS_Quillback_%28SS-424%29)
Unicorn (SS-429) (http://en.wikipedia.org/wiki/USS_Unicorn_%28SS-429%29) †
Vendace (SS-430) (http://en.wikipedia.org/wiki/USS_Vendace_%28SS-430%29) †
Walrus (SS-431) (http://en.wikipedia.org/wiki/USS_Walrus_%28SS-431%29) †
Whitefish (SS-432) (http://en.wikipedia.org/wiki/USS_Whitefish_%28SS-432%29) †
Whiting (SS-433) (http://en.wikipedia.org/wiki/USS_Whiting_%28SS-433%29) †
Wolffish (SS-434) (http://en.wikipedia.org/wiki/USS_Wolffish_%28SS-434%29) †
Corsair (SS-435) (http://en.wikipedia.org/wiki/USS_Corsair_%28SS-435%29)
Unicorn (SS-436) (http://en.wikipedia.org/wiki/USS_Unicorn_%28SS-436%29) &§;
Walrus (SS-437) (http://en.wikipedia.org/wiki/USS_Walrus_%28SS-437%29) &§;
Argonaut (SS-475) (http://en.wikipedia.org/wiki/USS_Argonaut_%28SS-475%29)
Runner (SS-476) (http://en.wikipedia.org/wiki/USS_Runner_%28SS-476%29)
Conger (SS-477) (http://en.wikipedia.org/wiki/USS_Conger_%28SS-477%29)
Cutlass (SS-478) (http://en.wikipedia.org/wiki/USS_Cutlass_%28SS-478%29)
Diablo (SS-479) (http://en.wikipedia.org/wiki/USS_Diablo_%28SS-479%29)
Medregal (SS-480) (http://en.wikipedia.org/wiki/USS_Medregal_%28SS-480%29)
Requin (SS-481) (http://en.wikipedia.org/wiki/USS_Requin_%28SS-481%29)
Irex (SS-482) (http://en.wikipedia.org/wiki/USS_Irex_%28SS-482%29)
Sea Leopard (SS-483) (http://en.wikipedia.org/wiki/USS_Sea_Leopard_%28SS-483%29)
Odax (SS-484) (http://en.wikipedia.org/wiki/USS_Odax_%28SS-484%29)
Sirago (SS-485) (http://en.wikipedia.org/wiki/USS_Sirago_%28SS-485%29)
Pomodon (SS-486) (http://en.wikipedia.org/wiki/USS_Pomodon_%28SS-486%29)
Remora (SS-487) (http://en.wikipedia.org/wiki/USS_Remora_%28SS-487%29)
Sarda (SS-488) (http://en.wikipedia.org/wiki/USS_Sarda_%28SS-488%29)
Spinax (SS-489) (http://en.wikipedia.org/wiki/USS_Spinax_%28SS-489%29)
Volador (SS-490) (http://en.wikipedia.org/wiki/USS_Volador_%28SS-490%29)
Pompano (SS-491) (http://en.wikipedia.org/wiki/USS_Pompano_%28SS-491%29) &§;
Grayling (SS-492) (http://en.wikipedia.org/wiki/USS_Grayling_%28SS-492%29) †
Needlefish (SS-493) (http://en.wikipedia.org/wiki/USS_Needlefish_%28SS-493%29) †
Sculpin (SS-494) (http://en.wikipedia.org/wiki/USS_Sculpin_%28SS-494%29) †
Wahoo (SS-516) (http://en.wikipedia.org/wiki/USS_Wahoo_%28SS-516%29) &§;
Amberjack (SS-522) (http://en.wikipedia.org/wiki/USS_Amberjack_%28SS-522%29)
Grampus (SS-523) (http://en.wikipedia.org/wiki/USS_Grampus_%28SS-523%29)
Pickerel (SS-524) (http://en.wikipedia.org/wiki/USS_Pickerel_%28SS-524%29)
Grenadier (SS-525) (http://en.wikipedia.org/wiki/USS_Grenadier_%28SS-525%29)
Dorado (SS-526) (http://en.wikipedia.org/wiki/USS_Dorado_%28SS-526%29) †
Comber (SS-527) (http://en.wikipedia.org/wiki/USS_Comber_%28SS-527%29) †
Sea Panther (SS-528) (http://en.wikipedia.org/wiki/USS_Sea_Panther_%28SS-528%29) †
Tiburon (SS-529) (http://en.wikipedia.org/wiki/USS_Tiburon_%28SS-529%29) †
&§;Cancelled before commissioning (http://en.wikipedia.org/wiki/Commissioning). † Cancelled.

[Fearless]

Great info JM.:up:

[FooFighters]

Does the Tench also use the Balao skin ?

Great work anyway.. I will try this mod for sure :up:

[SgtWalt65]

Tench did have extra torps also tench was a two deckgun ship

the major advance of tench though was in fabrication whereby
she came by a much better service depth due to advances in
welding techniques.

The Tench had 5 bladed screws and the Balo and Gato class subs had 4 bladed screws, in real lfe. In this game they all have 3 bladed screws.
Wonder if the game will alllow you to mod that?:hmm:
Additional Info:
http://www.maritime.org/wish-prop.htm Picture of the 4 blade screws and 5 blade screws.
http://en.wikipedia.org/wiki/Tench_class_submarine Cannot always be trusted site. =)
http://www.usstorsk.org/tench/423class.htm
http://www.valoratsea.com/gato.htm
http://www.cr.nps.gov/history/online_books/butowsky1/warships6.htm

[FooFighters]

Tench did have extra torps also tench was a two deckgun ship

the major advance of tench though was in fabrication whereby
she came by a much better service depth due to advances in
welding techniques.

The Tench had 5 bladed screws and the Balo and Gato class subs had 4 bladed screws, in real lfe. In this game they all have 3 bladed screws.
Wonder if the game will alllow you to mod that?:hmm:
Additional Info:
http://www.maritime.org/wish-prop.htm Picture of the 4 blade screws and 5 blade screws.
http://en.wikipedia.org/wiki/Tench_class_submarine Cannot always be trusted site. =)
http://www.usstorsk.org/tench/423class.htm
http://www.valoratsea.com/gato.htm
http://www.cr.nps.gov/history/online_books/butowsky1/warships6.htm

Cool.. :cool: learning more here everyday

[goose814]

Actually, I don't think any of the classes of subs had 5-bladed props until after the war with the development of the Guppy program. During the war the Gato, Balao, and Tench boats were 4-bladed.

By the way sb1171, I was wondering, could you list the changes that were made in the CareerStart.upc and Flotillas.upc files. They are conflicting with the RFB mod, so I wanted to manually enter the data. Thanks. Looking forward to this mod.

Gus

[CinC Battleforce]

acording to Fleet Boats in the U.S. Navy.....the five bladed prop was an improvement made to the boats during the Guppy project.

[Bubbe]

can starts in 1941?

[V.C. Sniper]

According to Padfield one of the best-kept secrets of the war was that the Balao pioneered the use of STS (armor) for the pressure hull. Another source (which I will supply this afternoon) states that they estimated the Balao and Tench classes would be good to 900 feet. No official verification, though.I would love to get the information on the second source so then I could post the estimated maximum depth of the Balao/Tench on Wikipedia. =D

[AVGWarhawk]

Is the torpedo loadout the same? The Trench carried 4 more fish.
TENCH!

Steve's bet pev, but he is correct. It is Tench.

Torsk archives:

http://www.navsource.org/archives/08/08423.htm

[gimpy117]

Crash in the mueseaum when i try to see it!!!!

[Ian]

Another difference between the Balao and Tench classes were that the Tench boats had slow running direct drive main motors. The Balao's had a reduction gearbox between the electric motors and the propellors hence the Tench class was quieter when submerged than the preceeding classes of submarines. Not quite sure how you could model that in SH4 though!

[M. Sarsfield]

There has to be a Tench config file that dictates detection based on speed.