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emperor_andreas
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 19th, 2015, 10:23 pm
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Very nice work!

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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 20th, 2015, 3:23 pm
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Link to part 1

Battlecruiser/Fast Battleship Amagi (part 2, 1930-1940/41):

After the uneventful first years of the 30's, when the events more worth to be mentioned were the changes of ships assigned to her sentai (and most of all Kii replacing her as Koko no Kaigun's flagship), Amagi was suddenly and unexpectedly called into action. On november 8th 1933, when Rikugun soldiers attempted a coup against Minister fo the Interior and former Prime Minikster Kusako Morimoto, Amagi was performing gunnery drills off Toumachi bay. Immediately recalled to port, she steamed at full speed and docked in front of Kono no Kaigun headquarters with orders to protect the building in case the rebles had tried to storm it. As the coup was quickly foiled by KnR and IJA tropps still loyal to Morimoto, Amagi's crew were denided any other direct involvement in the events. Amagi returned to her uneventful routine duties until she was ordered to Toumachi naval Arsenal for her main refit on January 5th 1935.
Docked at toumachi Naval Arsenal her stern was lenghtened 8,5m and a clipper bow fitted, increasing overall lenght to 262,08m. Anti-torpedo bugles were added, bringing the beam to 34,6m. Like it was done on Inaba's refit, in a way that will become standasrd for all Koko no kaigun capital ship refits, the original 254mm armour belt was removed and replaced by a new 356mm one. Diagonal bulkheads 152mm thick connected the belt with he main gun barbettes, upper belt was left at 140mm. Turrets had sighting periscopes and 10m rangefinders fitted, with the guns maximum elevation increaed to 43°. Face armor was increased to 508mm, while sides, roof and barbettes themselves were left with the original armor plates 229 to 280mm thick. Deck armor was increased from 98 to 164mm, further extended aft over the steering gear with 55m plates. splinter plates 3mm thick were added behind the torpedo bulkheads, with another 37mm plate added inside the newly added torpedo bulges. Casemate guns were improved too increasing their maximum elevation to 30°, ammunition stowage was also increased for both main and secondary armament. The original four 120mm anti-air guns in single mounts were replaced by eight 127mm ones in four twin mounts, and two quadruple 13mm machine guns were also fitted on board. Both fore and aft superstructures were heavily rebuilt in order to house newer and more advanced fire-control equipment. Standard displacement increased from 41.217 to 48.582tons, with full load beign 56.002t. This increased the ship's draft from 9,5 to 10,21m. The engines were also refurbished, all older oil and mixed-firing boliers were removed and replaced by newere and more powerful oil-firing ones, this allowed for the removal of the fore-funnel. Engine power was thus increased from 131.200 to 148.488shp, allowing the ship to retain her 30-knot top speed, and her endurance was of 10.000 nautical-miles at a sped of 16knots. A catapult and a collapsible crane was fitted at the stern to operate two Nakajima E8N reconnaissance planes.
In early March 1937, Works on Amagi were almost completed when the Naval staff decided to send the ship to Europe to attend and represent Koko at the forthcoming King George VI Coronation Review. The ship was thus undocked and all works deemed not necessary were stopped: the ship had yet to recieve most of her fire-control equipment.
On March 25th, 1937 Amagi departed Toumachi bound for Yokosuka, testing her new engines in the process, were she docked on the 28th of the same month, joining the heavy cruiser IJN Ashigara. Both ships departed Yokosuka on April 3rd 1937, steaming to Britain via Singapore, Aden, the Suez Canal and Malta, utlimately docking at Portsmouth on May 10th 1937.
After attending the review, on May 20th, Ashigara departed for Kiel, Germany. Amagi instead joined the Thiarian battleship LT Tuama and left Portsmouth on the 22nd, bound for the Atlantic Ocean.
The two ships steamed to Thiaria, reaching Bauaine on June 12th. Amagi docked off Noyalo, where some hight figures of the Thiarian Navy were allowed to tour the ship. After refueling operation had been completed, Amagi departed Thiaria on June 19th, facing up with the winter strmy water of Cape Horn and Magellan strait. Despite her foredeck was swamped almost all the time, leading to flooding in some crew quarters at the bow, Amagi crossed into the Pacific Ocean with just minor damage, briefly docking at Valparaiso, Chile, for a after further refuel.
After having steamed over 26.700 miles over the course of three months, effectively completing a World cruise, Amagi returned to Toumachi on July 9th, bwelcomed with widespread celebration.
Just days laterr, Amagi returned to Toumachi Naval Arsenal to complete her refit with the installation of the Type 94, fire control equipment.
Redesignated as a Fast Battleship, Amagi was untilmately completed and recommissioned on August 5th 1937. Assigned to Sentai 1 she became once again Koko no Kaigun's Flagship.
[ img ]
During the course of 1938 and 1939 Amagi made frequent trips to Japan and a few to china, often ferrying Rikugun troops as Kokoan involvement into the Sino-Japanese conflict began to increase.
In November 1939, Amagi was replaced in the role of Fleet Flagship by the newly built Battleship Yashima, she thus returned to the yards for further works.
During her second refit the quad 13mm machine guns were removed, replaced by twenty 25mm machine guns in ten twin mounts, six fitted on platforms on the main bridge and another four placed on the back of the funnnel. The 1,5m navigationr angefinders were moved and a anti-air command post was added by enlargin platforms high on the pagoda tower. Wind baffles were added around the battle bridge greenhouses and two lookout posts were removed, replaced by extra machine gun directors.
[ img ]
Amagi was recommissioned by fall 1940 and assigned to Sentai 1 with battleship Yashima. In 1941 he was reassigned to Sentai 2 with the Battleship Kii, and soon joined by the Owari. During the same year her airiwing was upgraded from two Nakajima E8N to three Mitsubishi F1M.

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emperor_andreas
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 20th, 2015, 3:38 pm
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Awesome!

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eswube
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 20th, 2015, 9:38 pm
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Stunning drawings!

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Kilomuse
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 20th, 2015, 9:45 pm
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:o That's a beautiful monster!

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Republic of Lisenia in FD Scale - In progress


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Biancini1995
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 20th, 2015, 10:01 pm
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It's an awsome Gojira!

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Hood
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 21st, 2015, 7:51 am
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There have been lots of excellent additions to this thread this week. Some really awesome looking drawings with well thought out refit progressions.

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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 26th, 2015, 5:13 pm
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Reisen Class Destroyer (part 1, 1932-1940):

In late 1929, with the Yuuka Class close to the end of her of her planned construction run, Koko no Kaigun naval staff started to focus on a successor ship to further suplement the fleet, expanding ranks and replacing, if and when needed, older units. Design time was extremely short, as it had become common practice by then, Kokoan ships retained an high degree of commonality with japanese ones. Since at the time the current production Destroyer in Japan was also the most advanced ship of it's kind there was very few that Kokoan designers could have bettered in any way. Thus the new units would have essentually been Fubuki Class Destroyers of the Ayanami-Type with minor modifications made to the bridge and armament.
Named Reisen, the first ship of the class was laid down at Toumachi Naval Arsenal in early 1930, the ship differed from a standard Ayanami-Type thanks to her capped funnels and enclosed torpedo launchers a feature of the later Akatsuki-Type, she also sported 40mm machine guns and early RDF equipment. The stern structure sported minor modification, like a simplified internal deck -noticeable by a much-less pronunced swaying int he porthole rows- and a slightly enlarged rudder. Finally, a sharp-eye would have noticed slight differencies in the fire-control room and director, every other feature was exactly the same as on an Ayanami-Type Fubuki.
The Naval staff planned to build at least eighteen vessels of the class, with another seven units built to Ayanami-Type standards to be laid down by 1932, followed by at least ten more built to Akatsuki-Type specifications. Yet, the signing of the London Naval Treaty in late 1930 made this all but impossible. Owing to treaty restrictions the planned units were cut to four, with Reisen herself already under construction this meant only three more would be built. All ships would have been built at Toumachi Naval arsenal. The lead ship, Reisen, was launched in 1931 and commissioned in 1932, a second ship, Eirin, was laid down after Reisen's launch, she was commissioned in 1933.
[ img ]
The third ship, Kaguya, was laid down in 1932, launched in early 1934 and commissioned in 1935. She differed for her tuwo earlier sisters because she was fitted with a new RDF set, sporting it's own dedicated room aft of the searchlight platform. A quadruple 13mm machine gun mount replaced the two 40mm single ones fitted on Reisen and Eirin. The fourth ship, Aya, was laid down in 1934 and launched in a record time by the end of the same year, ultimately beign commissioned in 1936. All four were assigned to Kuxhikutai 17 and formed Suirai Sentai 1 under the Light Cruiser Kashino.
[ img ]
Meanwhile, starting in late 1931, a new class of Destroyers, purposedly designed in order to skirt treaty limitations, was beign bult as the Shizuka Class. When in 1936, under the second reamament bill, Koko decided that it was time to completely ingoring the treaties, the decision was made to revert to full-sized Destroyer construction. As a stop-gap measure before a new class would have started construction, a fifth and last Reisen was ordered. As plans were already made years earlier, taking dust in the Naval Staff archives, the new ship was started almost immediately, laid down in early 1937 at Kumoi arsenal. Named Shikieiki, that fifth Destroyer was built to Akatsuki-Type standard, sporting just three boilers and a smaller fore-funnel. Newer turrets were fitted, as it was for an updater RDF fit. Anti-aircraft armament was further increased to four 25mm machine guns in two twin mounts and two 13mm in single ones. The bridge was modified and enlarged in order to fit the most advanced equipment available, the the fire-control room was deleted as the ship was fitted with an and integrated director-rangefinder unit, this way the bridge structure even turned out to be lower, relieving top-heavy issues. Shikieiki was launched and commissioned during the year 1939.
[ img ]
Shikieiki was assigned to the newly formed Kuchikutai 21, joining Suirai Sentai 9 under Light Cruiser Kompaku.


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

Reisen 1930-1931-1932 - ?
Eirin 1931-1932-1933 - ?
Kaguya 1932-1934-1935 - ?
Aya 1934-1934 1936 - ?
Shikieki 1937-1939-1939 - ?

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-Koko Kyouwakoku (Republic of Koko)
-Koko Kaiun Yuso Kaisha - KoKaYu Line (Koko AU spinoff)
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emperor_andreas
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: August 26th, 2015, 8:28 pm
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Very nice work! Fubukis and Akatsukis!

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BB1987
Post subject: Re: Koko Kyouwakoku (Republic of Koko)Posted: September 1st, 2015, 12:19 am
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F-16 Class Minelayer:

Just after the design for the F-13 class minelayer was approved Koko no Kaigun designers went back to the drawing board to design a nother class of Minelayers. Planned to further replace the ships of the Fusetsukan 1 class, the new ships were based on their predecessors. Overall lenght remained roughly the same, at 107,5m but waterline lenght was increased by 1,5m, Beam increased from 11,5 to 11,8m, as draft slightly did from 3,1 to 3,2m. Thus redesigned, the hull's overall displacement went up to 1.970T and increased usable internal space. The ships carried a complement of 300 mines, all stowed internally and arranged in six rails, to be laid through as many hatches located at the stern. Armament was completed by three single 140mm gun mounts and two 40mm machine guns for anti-aircraft duties. Oil firing boilers generated enough power to push the ships to 19knots, what was needed to operate toghether with the Fusetsukan 13 units. Overall, the planned minelayers bore a slight resemblance to the Japanese ship Itsukushima, but that just ended at overall appearance and main armament, as everything else was decidedly different.
The two ships planned for the class, now named Fusetsukan 16 and Fusetsukan 17, were laid down in 1929 and 1930 respectively. Both were launched in 1931 and commissioned in 1932.
[ img ]
During the second half of the 1930's, after IJN Tomozoru's capsizing, concern arose on the ship's stabilty. As the two units of the F-16 class were known to have a less than satisfactory roll performance because of their hight funnel and bridge, it was decided to refit them as to solve those issues. During 1937 both ships had their funnel cut down and the bridge structure reduced in height by a deck. To make up for the internal space lost, an enclosed deckhouse was added below the boat deck. during the same timeframe the RDF equipment was added and the single 40mm machine guns were replaced by two twin 25mm ones.
[ img ]
After the start of the Pacific War, together with the F-13 class, both units were sent in Aleutian waters at first, then south to the Solomon Islands. F-17 was sunk there in early 1943, caught by USN carrier-based planes off Santa Cruz Island. F-16 survived long enough to escape both the Carrier raids on Rabaul and Truk in November 1944 and February 1945. She returned home where she was fitted with Type 13 and 22 radars, two triple 25mm machine guns were alsoa dded. F-16 was then deployed for the Aleutians once again. Here, on October 18th, she was torpedoed and damaged by an US submarine. The ship returned to Koko and was drydocked at Kumoi Arnsenal for repairs. During her repairs one of the 140mm guns was landed and four triple and a single 25mm machine guns added, for a total of 23 barrels. An hydrophone was installed and eight depth charge throwers and two rails were fitted and she recieved a camouflage scheme.
[ img ]
When Koko uprisings started mere days later F-16 was dispatched to Mitsuminato, were she remained until early January 1946, then on the 27th, US bombers attacked the harbor. F-16 crew managed to put up the engines and attempted to flee for the open sea. Just minuts later a bomb hit the fantail detonating the depth charges, F-16 lost both screws and steering and was then hit multiple times before rolling over and sinking. Her wreck was raised and scrapped after the war.


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

F-16 1929-1931-1932 - Sunk 1946
F-17 1930-1931-1932 - Sunk 1943

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


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