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eswube
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 23rd, 2017, 7:46 pm
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Looks good! :)

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emperor_andreas
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 24th, 2017, 4:07 am
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Very nice work!

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Hood
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 24th, 2017, 8:20 am
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Very nice additions.

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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 24th, 2017, 11:17 am
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Ki-18 Class submarine:

The first class of large submarines built by Koko after rejecting the LNT limitations were based on the Japanese Junsen-Type. They were 99,6m long (over a meter more than their Japanese counterparts) and displaced 1.921T surfaced and 3.095t submerged. Armanent was six 533mm torpedo tubes (four fore, two aft), one 120mm gun (Japanese boats had a 127mm piece) and a single 13mm machine gun. Test depth was 80 meters and thanks to more powerful diesel engines and battieries (hence the lengthening), they were capable of 20,4 knots surfaced and 7,7 submerged. Endurance was 20.200 nautical-miles surfaced (at 10 knots), and 70 submerged (at 3 knots). They also carried a small hangar and had a catapult fitted aft to operate a Yokosuka E6Y1 reconnaissance floatplane, the first Kokoan submarines that could carry and operate planes.
All built at Kumoi Arsenal, the three ships of the class were laid down in 1935 (Ki-18) and 1936 (Ki-20 and 21). All were in service by 1940, with Ki-20 being the first to be commissioned in late 1939.
[ img ]
At the start of the Pacific War the three units operated first around Miday, then deployed to aleutian waters and finally south against allied shipping between the Hawaii and the Fijis. In April 1942 Ki-20 became one of the first kokoan submarines to be lost during the war, depth-charged by US Destroyers while attempting to tail the USS Hornet after the Doolittle Raid. Ki-18 was caught surfaced by US bombers and sunk 800 miles off Dutch Harbor (Aleutians) in June 1943. In early 1945, because of the utter obsolescence of the E6Y1, Ki-21 was docked for a major refit. Aircraft facilities were deleted and the 13mm machine gun replaced by a 25mm piece. A surface radar was also fitted.
[ img ]
Sent to reinforce Kokoan/Japanese forces in the Philippines, and ended up under Japanese command after the Kokoan Uprisings started in November, Ki-21 disappeared in the Celebes Sea in early December 1945, probably sunk by US or Recerchean units.


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

Ki-18 1935-1939-1940 - Sunk 1943
Ki-20 1936-1938-1939 - Sunk 1942
Ki-21 1936-1938-1940 - Sunk 1945

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emperor_andreas
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 24th, 2017, 3:31 pm
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Very nice work!

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Hood
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 25th, 2017, 8:00 am
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Nice work, one minor nitpick is that the E6Y1 seems to be floating in mid air (2 pixels above the deck).

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Novice
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 25th, 2017, 11:18 pm
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On the original it was done to avoid double black lines, seeing that the aircraft had to assembled before take off

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adenandy
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 26th, 2017, 4:52 am
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EXCELLENT work BB :!:

Jolly WELL DONE my old fruit :D

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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: September 2nd, 2017, 7:07 pm
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F-29 Class Minelayer:

Following the requirements of the Rearmament Bills passed by Morimoto's Governments, a new class of large multipurpose Minelayers (that could also act as netlayers and escorts in some extent) emerged in the late 30's as a modified and improved design of the older F-13 and F-16 classes. Known as the fusetsukan-29 class, from the pennant number of the lead unit. The class was ordered at first as a group of three. Stretched to a length of 110,1m the were 11,8m abeam and drafted 4m, displacing 2.531T at full load. Pushed by oil-firing boilers driving two screws they could made 20knots and had a range of 6.000 nautical miles at 16knots. Capacity-wise, they could carry 360 mines or 260 mines and 24 510m anti-submarine nets. Fitted with an hydrophone, they also carried twenty depth charges for escort roles. This last planned secondary task led them to be equipped with two single 76mm guns, leaving them woefully underarmed for their size, especially when compared to the half-siblings of the preceding F-13 and F-16 classes which sported 120 and 140mm barrels. For anti-air defence they also carried two twin 25mm machine guns. The three ships, F-29, F-30 and F-35, were laid down between 1938 and 1940 and commissioned between 1939 and 1941.
[ img ]
For the entire duration of the war, the ships were stationed in the Aleutians, laying mines or escorting convoys in and out of the archipelago. In 1944 all were refitted with radars, new hydrophones and extra machine guns (eight triple and six single 25mm, for a total of 30), had lower deck portholes sealed and an arctic dazzle camouflage painted. None recieved the improved Kokoan or Thiarian radars and all three were soon out of the war: F-29 was torpedoed and sunk by an American submarine, F-30 sunk in an air Raid and F-35 damaged beyond repair after being torpedoed as well. Never repaired F-35 was left in Attu to act as a floating AA platform and was ultimately decommissioned and scrapped just after the end of the war.
[ img ]
Just after the start of the Pacific War, a second batch of three units was ordered, named F-49, F-54 and F-60. The first was laid down in 1943 and commissioned by late 1944. Compared to the earlier batch, the new ships had a straigther stem to ease construction, improved sonar and hydrophones, a longer forecastle, no portholes on the lower hull and radars fitted since completion. More strikingly, they replaced the whimpy 76mm guns with three 127mm ones, one shielded mount on the forecastle and a twin unshielded mount aft. Anti-air armament was made up by six triple and four single 25mm machine guns for a total of 22 barrels. No anti-submarine nets were embarked but depth charge complement was increased to 48 warheads by also slightly reducing the number of mines carried.
[ img ]
F-54 was commissioned in early October 1945, sporting a further improved radar suite and the new twin 40mm/Type5 machine guns (reverse-engineering of captured Bofors). The ship carried 10 twin and two single mounts for 22 barrels, plus five more single of the older 25mm types. With the mines carried further reduced F-54 could easily carry as high as 80 depth charges. She had her hull painted blue and the superstructure filled with green patches for camouflage.
[ img ]
F-49 was bombed and sunk during one of the american air raids on Shirominato during Koko uprisings, while F-60 -whih had been laid down in early 1945- was never completed and scrapped on the ways after the war.
F-54, the only survivor of the class, was renamed Mirai in 1947 after Koko no Kaigun was reorganized into Koko Kaijou. During the years, she recieved somemodifications, with the addition of US-built electronics. The aft 127mm mount was also removed and the aft deckhouses covered with a landing platform for helicopters. All wartime light anti-aircraft was removed and replaced by four twin 40mm bofors and three twin 20mm oerlikons. The rest of the portholes on the hull were sealed.
[ img ]
Mirai was finally decommissioned in late 1953, after the end of the Korean War. She remained in the mothball fleet until 1970, when she was finally scrapped.


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

F-29 1938-1939-1939 - Sunk 1945
F-30 1939-1940-1940 - Sunk 1945
F-35 1940-1941-1941 - Decommissioned 1946
F-49 1943-1944-1944 - Sunk 1946
F-54 1944-1945-1945 - Renamed Mirai 1947, Decommissioned 1953
F-60 1945-/-/ - not completed

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Sources and documentations are the most welcome.

-Koko Kyouwakoku (Republic of Koko)
-Koko - Civil Aviation


Last edited by BB1987 on September 2nd, 2017, 7:38 pm, edited 1 time in total.

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Armoured man
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: September 2nd, 2017, 7:36 pm
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Very nice work


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