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NguyenArchitakuVN

B-65 Ishikari-class Large Cruiser

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Beta Tester
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Design B-65 was a class of Super Type A cruisers planned by the Imperial Japanese Navy (IJN) before and during World War II. As envisioned by the IJN, the cruisers were to play a key role in the Night Battle Force portion of the "Decisive battle" strategy which Japan hoped, in the event of war, to employ against the United States Navy.
Begun in 1939, plans were far enough along that tests were conducted with the main armament and against the underwater protection. Even though the ships were approved for construction under a 1942 fleet replenishment program, the prioritizing of aircraft carriers and smaller ships due to the war, followed by Japan's defeat, killed any chance of the B-65's construction.
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Design work on the B-65s began in 1939. Preliminary plans for the new class were finished by September 1940, and they were far enough along that tests of the lower protection—the armor intended to counter any shell that fell short but still hit the ship (albeit underwater) and torpedoes—and main armament were conducted from 1940 to 1941.

These plans called for ships that bore a striking resemblance to the Yamato-class battleships, with the same "clipper bow, flush-deck construction, and a generally similar superstructure", albeit at a reduced size. Primary weapons were to be nine 310 mm (12.2 in)/50 caliber guns in three triple turrets and eight 610 mm (24 in) torpedo tubes firing the excellent Type 93 "Long Lance" torpedo. Secondary weapons included sixteen 100 mm (3.9 in)/65 caliber dual-purpose guns in dual mounts on either side of the superstructure, twelve paired Type 95 25 mm (1 in) anti-aircraft guns, and four 13.2mm Hotchkiss machine guns. The weight of the main battery turrets was to be around 1,000 long tons (1,100 short tons; 1,000 t), with 350 long tons (390 short tons; 360 t) of that devoted to armor; however, no plans of how this latter figure was to have been distributed has survived.

The cruisers were to be protected by 190 mm (7.5 in) belt armor sloped at 20° and 125 mm (4.9 in) deck armor. Four geared turbine sets would have generated about 42,500 shp each; for a total of about 167,674 shp, enough to power the ships through the water at 34 kn (39 mph; 63 km/h), faster than the "fundamental design requirement" of 33 kn (38 mph; 61 km/h).

In an attempt to counter the Alaska-class cruisers‍ ' 305 mm (12.0 in) guns, a proposal to increase both the main battery to six 356 mm (14 in) and armor protection to resist against the same was put forth. However, the increase in displacement (to almost 40,000 long tons (45,000 short tons; 41,000 t)) and reduction in performance this entailed meant that nothing came of the proposed changes.

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Also a version with 356 mm main gun:

EBJw720.jpgCompared to the Yamato:
2l2HyJK.jpg

Edited by NguyenArchitakuVN

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Beta Tester
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There is a high chance that this ship will be a mid-tier battleship or a high-tier battlecruiser/large cruiser... What ever it is. WG decides. The caliber of her main guns is pretty much inferior to those high tier battleships currently in the game, but superior to cruisers.

Also, not just the B65 of the Japanese or the American's Alaska. The Dutch also have a plan for large cruiser. Known as the Design 1047 with 11-inch guns as main battery.

CSesDbe.png

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Super Tester
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The high chance of it appearing is when the Alaska comes as well although to be fair, the Alaska kinda won the race for large cruisers.

 

Letting her pack 14 inch guns in dual mount gave her more damage potential but I feel that it also diminished her battery capacity in triple mounts although it would be interesting enough if they will treat her as a potential tier 6 fast battleship assuming that the cruiser and battleship split comes.

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Beta Tester
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The high chance of it appearing is when the Alaska comes as well although to be fair, the Alaska kinda won the race for large cruisers.

 

Letting her pack 14 inch guns in dual mount gave her more damage potential but I feel that it also diminished her battery capacity in triple mounts although it would be interesting enough if they will treat her as a potential tier 6 fast battleship assuming that the cruiser and battleship split comes.

 

Nope... Not a tier VI battleship. I want to see this bae sailing along with a Yamato.

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Super Tester
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Nope... Not a tier VI battleship. I want to see this bae sailing along with a Yamato.

 

can this even reach tier X grade with her armor and planned upchucking of armaments? I like the No. 13 for that regard.
Edited by EvyL

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Member
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These big cruisers are going to be very interesting and difficult to balance in game. They may be great cruiser killers, but are going to get seriously eaten alive by BBs, especially in the high tiers.

Size is a huge factor in game when it comes to dodging torps and BB salvos ~ and these things are big.

Combined with weak armour and  a Fuso firing 12 14"will be scoring multiple citadels every salvo.

At the same time, any BB passed Kogo is going to be pretty much impenetrable against 10~12" AP. Hence they will fire HE against BBs cruiser style; unfortunately the key with HE is starting fires and fires are much more a function on number of shells hit than shell size. Hence they are unlikely to be good fire starters. 

Too big to dodge, too slow to run, not enough punch to fight back and too weak to take hits....

Any ideas on how to balance them?

 

BTW love these historic threads, please keep them coming.

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Alpha Tester
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So... a Mini Yamato?

 

There's another super battleship that Japanese didn't build: Number 13-class BB. If Wikipedia didn't lie, this ship is a demonic lovechild between Kongo-class and Yamato-class,have the Washington Naval Treaty didn't intervene.Let's check it shall we?

 

4x 46 cm guns in twin mount config? Checked

16x single 14 cm secondary guns? Checked

12x single 12 cm AA guns? Checked

8x 61 cm torpedo tubes? Checked

 

Oh, what about the fact that this ship can go 30 knots on it's as-built configuration? Double checked

This ship itself is actually bigger than Yamato-class length-wise,274 m compared to Yamato-class 263 m. Displacement however,Yamato is still at top because Number 13-class trades away most of her armor for that aforementioned 30 knots performance.

 

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Super Tester
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There's another super battleship that Japanese didn't build: Number 13-class BB. If Wikipedia didn't lie, this ship is a demonic lovechild between Kongo-class and Yamato-class,have the Washington Naval Treaty didn't intervene.Let's check it shall we?

 

4x 46 cm guns in twin mount config? Checked

16x single 14 cm secondary guns? Checked

12x single 12 cm AA guns? Checked

8x 61 cm torpedo tubes? Checked

 

Oh, what about the fact that this ship can go 30 knots on it's as-built configuration? Double checked

This ship itself is actually bigger than Yamato-class length-wise,274 m compared to Yamato-class 263 m. Displacement however,Yamato is still at top because Number 13-class trades away most of her armor for that aforementioned 30 knots performance.

 

 

I did mess with it at the WWII thread although its still pretty much the bare.

 

a candidate for the fast and slow BB split, HERE WE COME.

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Beta Tester
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Would torpedoes even be necessary for a Battlecruiser of this size? Sure she would be fast, but nowhere near as manoeuvrable as a Cruiser and as with any torpedo armed ship but especially the IJN's type 93's, 1 single hit to the torpedo tubes would spell  a catastrophic explosion, which for a fast brawling ship like this wouldn't be the best idea?

 

In a 1 on 1 fight with similar heavy ships like the Alaska (or even a squadron of heavy cruisers) the torpedoes would be next to useless given the long gunnery ranges such ships deal with, but in speculation, I would still say American radar trumps and that the Alaska would win unless the fight happens at close quarters near islands to block the radar signature of the IJN ships. 

 

In saying this this would be a very interesting ship to see in game

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yes the Japanes had this design under going a development stages  from 1942 to june of 1945 it call Mini battleship cruiser 65 if you want to see the ship go play the game called Navyfield 1 it is this game

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