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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 15th, 2015, 12:36 pm
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Blackbuck wrote:
There's just something about those older Japanese cruisers that makes them look more elegant than other vessels.
It might possibly be bcause of their long, relatively clean, deck lines. The superstrucure was quite compact, and except for the funnels, nearly nothing broke the main deck's profile. Their long, straight, and simple profile sometims reminds me of a sword. At least, those are my feelings about the Japanese 5.500Ton Cruisers family.

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emperor_andreas
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 15th, 2015, 1:18 pm
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Very nice work!

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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 15th, 2015, 4:01 pm
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Ki-1 Class Submarine:

In 1918, what was truly left off from Koko no Kaigun and Kokoan shipbulders was the capability of building Submarines domestically. The fleet had none in it's inventory, with all seven units in service (soon to be ten) ordered and built abroad in Great Britain. To fulfil future Naval Construction Plans, and fill this void, works began on a new shipyard complex specialized in Destroyer and Submarine construction, located in the city of Kumoi, on Nintoku island. Design phase for the actual boats started shortly after.
Since the upcoming class would have been the first to be domestically built and operated the requirement called for a small, lightly armed unit whose purpose was to be mainly a training and experimental ship then a pure main-line one. All the experience gained during thee building and operating processes would have been exploited for the construction of larger boats at a later date. The design that soon emerged was loosely based on the Japanese S2 Class, but resulted in a much smaller unit. Compared to the IJN Sub specs it called for a ship 47,3m long (instead of 58,6), 4,4m abeam (instead of 5,2m) with a surfaced draft of 3,3m. Top speed was planned to be 13,4 knots (instead of 16,5) surfaced and 9,5 submerged, endurance was to be 2020 nautical-miles surfaced and 60 submerged. Two 533mm bow-mounted torpedo tubes were to be carried (instead of the six 450mm ones of the S2 Type).
Two units, Ki-1 and Ki-2, were funded and ordered in December 1921, and by the end of the year both had been laid down at the newly built (it had opened in mid-1920) Kumoi Arsenal. Untouched by the Washington Naval Treaty both units were launched by late 1922. Fitting-out dragged on more than expected, as pre-commissioning trials did, but ultimately both units were commissioned in 1924 and 1925, respectively.
[ img ]
Forming their own Sensuitai until 1929, when the newer and larger units of the Ki-3 Class started to enter service, both submarines ended up acting only as test-beds for handling exercises, crew training and new systems sperimentation, just like they were designed for.
Ultimately their age and small dimensions exacted their toll: Ki-1 was decommissioned in 1938, Ki-2 in 1940. Both had been scrapped by the start of the Pacific war.


Ships in class: (laid down-launched-commissioned - fate)

Ki-1 1921-1922-1924 - Decommissioned 1938
Ki-2 1921-1922-1925 - Decommissioned 1940

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-Koko Kaiun Yuso Kaisha - KoKaYu Line (Koko AU spinoff)
-Koko - Civil Aviation


Last edited by BB1987 on October 10th, 2019, 9:37 am, edited 2 times in total.

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ALVAMA
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 15th, 2015, 4:07 pm
Most Excellent works!!))


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eswube
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 15th, 2015, 6:29 pm
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Very nice!


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emperor_andreas
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 16th, 2015, 12:49 am
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Very nice work!

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Hood
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 16th, 2015, 7:38 am
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That's a very nice submarine design.

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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 16th, 2015, 4:57 pm
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No, ships, just an history walltext today. some parts might be a bit far-fetched but bear with me...

6.The Shi-Shi Kantai and the WNT (1921-1923)
Following the doctrine of Sato Tetsuharo, who argued that the Japanese Imperial Navy had to keep a strength of roughly 70% of the United states Navy, the Japanese Diet under Hara's government had funded a massive naval construction plan which called for the construction of eight Battleships and eight Battlecruisers. The plan, known as the Hachi-Hachi Kantai would have been relied on the Nagato-class Battleships already under construction, further augmented by the planned Tosa, Amagi, Kii and N°13 classes.
This massive plan was also conteplated by Koko as a guide for further naval constructions in a smaller fashion. Half of the size of the Japanese one it would have led to the building of six newer capital ships to be added to the already building Yagumo class, giving life to a smaller Shi-Shi Kantai (or four-four fleet), through which an optimistic aim of getting an almost 1:1 ratio with the US Navy was to be achieved by combining the two Navies strength, even surpassing the needs theorized by Sato.
All new constructed units were planned to carry the newer 409mm guns and to achieve maximum speeds than the Japanese Nagato class for commonality and easier integration between the Kokoan and Japanese squadrons.
After the Bilateral Agreements of 1921 the plan was retained and refurbished. Initially reconsidered as a Shi-Ni Kantai (four-two fleet) by leaving out the slower and lesser armed Yagumo Class it was soon brought back to a full Shi-Shi level by planning a fourth class of Battleships to augmented the three already planned. In sight of this, needed expansions of Toumachi Naval arsenal were underway since 1918, and two of the planned units were even allocated to the civilian Yamatogawa Shipyards in order to sped up construction.
The ambitious plan crashed to an halt on November 1921 when The Washington Naval Conference was called. During the conference a 5:5:3:1.75:1.75 ratio of tonnage between Britain, the United States, Japan, France and Italy was discussed, but for many, interminable, days of negotiations a figure for Koko was not reached. Koko delegation kept asking for a 5:2 ratio when compared to GB and the USA, obviously, neither of the two other delegations was willing to accept it as it would have give to a combined Koko-Japanese fleet effective parity with the royal navy and the US Fleet. The first request from the Americans was a 5:1 ratio, which in turn was rejected by Koko's delegation. Ultimately, a 5:1,25 ratio was achieved, after Koko no Kaigun agreed to scrap the two Nintoku Armored Cruisers and demilitarize the two Heian class Protected Cruisers. Overall, the 5:5:3;1,75:1,75:1,25 ratio was kept, with tonnage restrictions capped at 610.000t for the USN and RN, 366.000t for the IJN, 213.000 for the MN and RM, and ultimately 156.000 for KnK. The United States Navy was granted completion of two Colorado-class Battleships under construction, while the Royal Navy would have built two new ships. All future capital-ship construction was capped at 35.000t of standard displacement. Some specific ships whose tonnage exceeded the limit were allowed to be retained between existing and under construction units, namely two for the USN and RN, and one for each other signatories. France and Italy choose to not exploit this specific concession, as their finances did not allowed further expenditures at the time.
A loophole was thus created, as Koko delegation now pointed out, without the intent of backing up from their claim, that all planned units exceeded the allowed 35.000t limit, while there were no units under construction to fulfill the allowances. A solution was ultimately reached by allowing one of the Capital ships under construction in Japan to be transferred to Koko. In exchange of this, united states and Great Britain were granted completion of a further ship above 35.000t. the US Navy and chose to complete three units of the six Lexington-class Battlecruisers, Great Britain exploited that with Hood and the two G3-class Battlecruisers, whose construction had been started in October 1921 just before the Washington Conference had been called, Japan choose to complete Tosa, while koko no Kaigun would have received one out of Kaga, Akagi or Amagi. Another price to be paid for the capital ship transfer was that Koko was not allowed any tonnage for Aircraft Carrier construction. Other nations were instead allowed to convert two unfinished capital ship hulls into 33.000t Aircraft carriers, and to build new ones to a maximum displacement of 27.000, for a total of 135.000t for the USN and RN, 81.000t for Japan and 60.000t for France and Italy. Koko was also forbidden to exploit the around-30.000t of allowance left before 1927.
The Washington Naval Treaty was effectively ratified on February 6th 1922. In August of the same year a deal was made between Japan and Koko for the transfer of the Battlecruiser Amagi.


WNT (washington Naval treaty):

Firmataries:
United States of America, United kingdom, Empire of Japan, French Republic, Kingdom of Italy, Republic of Koko.
Ratio: 5. 5. 3. 1,75. 1,75. 1,25.

Allowed tonnage and retained warships:
-United States of America: 610.000T

Ships retained:
BB-20 Vermont 16.000 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1923)
BB-21 Kansas 16.000 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1923)
BB-22 Minnesota 16.000 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1923)
BB-25 New Hampshire 16.000 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1923)
BB-26 South Carolina 16.000 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1925)
BB-27 Michigan 16.000 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1925)
BB-28 Delaware 20.380 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1925)
BB-29 North Dakota 20.380 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1926)
BB-30 Florida 21.825 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1926)
BB-31 Utah 21.825 - To be demilitarized upon replacement commissioning (decommissioned in 1927, converted into a target ship)
BB-32 Wyoming 26.420
BB-33 Arkansas 26.420
BB-34 New york 27.000
BB-35 Texas 27.000
BB-36 Nevada 27.900
BB-37 Oklahoma 27.900
BB-38 Pennsylvania 29.626
BB-39 Arizona 29.626
BB-40 New mexico 32.000
BB-41 Mississippi 32.000
BB-42 Idaho 32.000
BB-43 Tennessee 32.300
BB-44 California 32.300
BB-46 Maryland 32.600

Allowed construction:
BB-45 Colorado 32.600 (completed 1923)
BB-48 West virginia 32.600 (completed 1923)
BC-02 Constellation 43.500 (completed 1925)
BC-05 Constitution 43.500 (completed 1926)
BC-06 United states 43.500 (completed 1927)

Final Total: 610.792T



-United Kingdom: 610.000T

Ships retained:
BC Lion 26.270 - To be scrapped upon upon replacement commissioning (decommissioned and scrapped 1926)
BB Thunderer 22.500 - To be scrapped upon upon replacement commissioning (decommissioned and scrapped 1926)
BB King George V 23.400 - To be scrapped upon upon replacement commissioning (decommissioned and scrapped 1926)
BB Centurion 23.400 - To be demilitarized upon upon replacement commissioning (decommissioned in 1927, converted into a target ship)
BB Ajax 23.400 - To be scrapped upon upon replacement commissioning (decommissioned and scrapped 1926)
BB Iron Duke 25.000
BB Marlborough 25.000
BB Benbow 25.000 - To be scrapped upon upon replacement commissioning (decommissioned and scrapped 1927)
BB Emperor of india 25.000 - To be scrapped upon upon replacement commissioning (decommissioned and scrapped 1927)
BB Queen elizabeth 27.500
BB Warspite 27.500
BB Valiant 27.500
BB Malaya 27.500
BB Barham 27.500
BB Resolution 25.750
BB Revenge 25.750
BB Royal oak 25.750
BB Royal sovereign 25.750
BB Ramilles 25.750
BC Tiger 28.500
BC Renown 26.500
BC Repulse 26.500
BC Hood 41.200

Allowed construction:
BC (G3-1) 49.200 (completed 1926)
BC (G3-2) 49.200 (completed 1926)
BB Nelson 33.950 (completed 1927)
BB Rodney 33.950 (completed 1927)

Final Total: 605.250T



-Empire of Japan: 366.000T

Ships retained:
BB Satsuma 19.372 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1925)
BB Aki 20.100 - To be scrapped upon replacement commissioning (decommissioned and scrapped 1925)
BB Settsu 21.433
BC Kongo 27.384
BC Hiei 27.384
BC Haruna 27.384
BC Kirishima 27.384
BB Fuso 29.800
BB Yamashiro 29.800
BB Ise 31.760
BB Hyuga 31.760
BB Nagato 34.116
BB Mutsu 34.116

Allowed construction:
BB Tosa 39.900 (completed 1925)

Final Total: 362.221T



-French Republic: 213.000T

Ships retained:
BB Voltaire 18.900
BB Diderot 18.900
BB Condorect 18.900
BB Coubret 23.500
BB Jean Bart 23.500
BB France 23.500
BB Paris 23.500
BB Provence 23.500
BB Lorrane 23.500
BB Bretagne 23.500

Final Total: 221.200T
New construction allowed to replace existing warships starting in 1927.



-Kingdom of Italy: 213.000T

Ships retained:
BB Regina Elena 12.600
BB Vittorio Emanuele 12.600
BB Roma 12.600
BB Napoli 12.600
BB Dante Alighieri 19.500
BB Leonardo da vinci 22.500
BB Giulio Cesare 22.500
BB Conte di Cavour 22.500
BB Caio Duilio 22.700
BB Andrea Doria 22.700

Final Total: 182.800T
New construction (30.200T) allowed starting in 1927, replacment of older ships is allowed.



-Republic of Koko: 152.000T

Ships retained:
BC Goryo 14.193
BC Aratama 14.193
BB Yagumo 25.255
BB Inaba 25.483

Allowed construction:
BC Amagi 41.217 (completed 1926)

Final Total: 120.341T
New construction (31.659T) allowed by scrapping of existing warships starting in 1927.
(open spoiler to show another large walltext)

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Sources and documentations are the most welcome.

-Koko Kyouwakoku (Republic of Koko)
-Koko's carrier-based aircrafts of WWII
-Koko Kaiun Yuso Kaisha - KoKaYu Line (Koko AU spinoff)
-Koko - Civil Aviation


Last edited by BB1987 on June 13th, 2016, 6:48 pm, edited 1 time in total.

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Sumeragi
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 16th, 2015, 9:25 pm
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Wow, so even more than my AH (Kurenai no Rika).

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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: April 16th, 2015, 9:52 pm
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Sumeragi wrote:
Wow, so even more than my AH (Kurenai no Rika).

[ img ]
According to that data, I've granted 25.000 tons more for UK and USA, everyone else got less (CV tonnage is unchanged from reality, moreover Koko got none) and there are no Ottomans or Chinese fleets to be regulated. I've ended up with that figures by maintaining the original WNT ratio, just scaled it up a bit in order to get the extra ships I needed (more steel available for battles :P )


As a plus, under spoiler is Koko's fleet as of february 6th 1922, the day the WNT was signed.
[ img ]
Warning: huge image.
A special mention to Redhorse and his Republic of Texas AU,from which this sheet was inspired.


Next entries will cover some ships that got canceled by the WNT, then we will properly enter into the Treaty Era

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-Koko Kyouwakoku (Republic of Koko)
-Koko's carrier-based aircrafts of WWII
-Koko Kaiun Yuso Kaisha - KoKaYu Line (Koko AU spinoff)
-Koko - Civil Aviation


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