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BB1987
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 11th, 2017, 9:34 pm
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Novice wrote: *
Colosseum wrote: *
These are really cool. I don't know much at all about merchant shipping (especially Japanese-inspired stuff) so it's interesting to see the types of ships that would have been the targets of all the submarines I've been drawing recently. ;)
In fact the first liner (by WhyMe) was a German liner and the second (single funnel one) was British in origin, and very beautifully modified by BB1987.
Indeed it is correct. Interestingly, Japanese liners weren't such distinctively Japanese-looking like their warships. You can fit an NYK ship within a group of western passenger ship and it wouldn't stand out.

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adenandy
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 12th, 2017, 4:14 am
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Beautiful looking ships BB old chap, jolly well drawn sir :!:

Just one, VERY minor nit pic my friend, and that's the HK ensign is the wrong way round - The Union flag needs to be in the top, hoist side, next to the halyard and not in the fly.

But otherwise, fantastic drawing :D

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eswube
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 12th, 2017, 10:13 am
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Great work.
Shipping lines are very rarely included in the AU's (I remember that Raxar made one).

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BB1987
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 12th, 2017, 12:59 pm
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adenandy wrote: *
Just one, VERY minor nit pic my friend, and that's the HK ensign is the wrong way round - The Union flag needs to be in the top, hoist side, next to the halyard and not in the fly.
Blimey! I forgot to flip the flag after resizing :lol: :oops: . Amended.


Moriya Maru class:

The four ships of the Moriya Maru class were the direct result of KoKaYu interest in opening a more capacious service between Koko and the United States. They were smaller and slower than the Arakawas but not less luxurious, and they had a more coherent appearance as they were all built almost to the original specifications with only minor changes between them.

Moriya Maru was laid down in 1907 and completed in 1909. She was 162,5m long overall, had a beam of 17,9m and a draft of 8,1 for a tonnage of 11.267 GRT. Eight boilers and triple exansion engines drove two three bladed propellers for a service speed of 17,5 knots. Capacity was 1.008 passengers: 100 in first class, 267 in second class and 641 in third class. Plus a crew of 311. Initially, Moriya Maru served the Koko-Japan route, but starting in 1911 she began steaming between Toumachi and San Francisco (with a stopover in Honolulu) as intended. Since 1918 she switched to the newly opened Toumachi-Seattle route (with no Hawaii stopover).
[ img ]

Yamasaki Maru, the secon ship, was built between 1911 and 1913. Hokuto Maru, the third, between January 1913 and December 1914. They were visually identically, built with the same specifications and capacity of Moriya Maru with only a few small differencies. The aft well deck was roofeed over and the raised quarterdeck widened to give third class passengers more promenade space. A solid bulwark was added on the flying bridge above the main wheelhouse and a canopy added on the boat deck in front of the doors leading to the first class staircase. Both served the Toumachi-San Francisco route until 1918 before being moved to Seattle service.
[ img ]

Yamatogawa Maru was the last of the sisters to enter service, in late 1918. She had been laid down in early 1915 but her construction lagged during WWI. She recieved slight modification during construction, like the raised aft auxiliary weelhouse and an extended promenade around the base of the aft mast and expanded smoking room in the superstructure. She joined her sisters on the Seattle-bound route since her maiden voyage.
[ img ]

By the mid 30's all four where in need of some sort of refit. Which they recieved one by one between 1936 and 1939, also thanks to a direct financing from the Government. During the works all ships got converted to oil-firing and the passenger capacity was reduced by 100 (all third class). The crew remained at 311 as engine room personnel was replaced by stewards. The three older sisters also recieved the same modifications that Yamatogawa Maru had since completion, so that by this point on all four looked exactly the same. They all returned to the Toumachi-Seattle route afterwards.
The government financing did not happened by chance however, and not only because they had shares in Koko Kaiun Yuso Kaisha, but also because they made possible under the financing conditions that the ships also recieved modifications that would allow their conversions into troopships faster in case of a war. When this happened in December 1941, the four Moriyas were immediately requisitioned and modified for their new role. They got all-gray paint, recieved two 76mm guns, two triple 25mm anti-air machine guns, searchlights RDF equipments, extra lifeboats and two landing crafts. The standard capacity was for 1.600 troops plus 213 crew.
[ img ]
All four were lost in the war between august 1944 and October 1945. Moriya Maru was bombed during the Truk Lagoon Raid, the other three were torpedoed and sunk by USN submarines.

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heuhen
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 12th, 2017, 1:40 pm
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home alone this week, ehh.


And again... beautiful

I'm wonder if some of the hatches on the 1943 version should be dark grey instead of black. since they are so close to the hull


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Hood
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 12th, 2017, 2:14 pm
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Excellent work! I was never expecting to see a civilian steamer line in your AU, in fact is this the first AU shipping line we've had?
You handle merchants as well as warships, all of these are really well drawn and the styling and detailing look spot on to me.

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BB1987
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 12th, 2017, 5:19 pm
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heuhen wrote: *
I'm wonder if some of the hatches on the 1943 version should be dark grey instead of black. since they are so close to the hull
I'm not too sure what you mean, can you rephrase the question?

If you are asking about the small squared hatches near the waterline (all outlined in black in the "civilian" drawings and hallf gray, half black in the "wartime" ones) those are the coal bunker doors used to refuel the ship. I've decided to seal (henche the gray outline) half of them to reflect the boiler conversion from coal-firing to oil-firing.

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adenandy
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 13th, 2017, 10:31 pm
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FANTASTIC work BB :!:

Jolly Well Done old chap :D

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emperor_andreas
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 14th, 2017, 1:13 am
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Awesome work, my friend! Only nitpick I have is that the funnels of the troopship versions might be all-gray instead of gray with black tops. Unless this is just a Koko trademark or something?

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BB1987
Post subject: Re: Koko Kaiun Yuso Kaisha (KoKaYu Line)Posted: November 16th, 2017, 9:24 pm
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emperor_andreas wrote: *
the funnels of the troopship versions might be all-gray instead of gray with black tops. Unless this is just a Koko trademark or something?
A Koko thing pretty much by having, with few exceptions, all funnel tops black (basically, the AU explanation for "I personally like them that way" :lol: )



Higashinada Maru class:

In order to increase passenger capacity on less prestigious routes Koko Kaiun Yuso Kaisha literally ordered an entire fleet of five liners between 1904 and 1912 to supplement the small Miyabi Maru. The ships became progressively larger as construction of the various units went on (much like the much more prestigious Arakawa Marus), but all relayed on the same basic design and maintained many features in common with each other.

The first ship of the quintet was Higashinada Maru, laid down in 1904 and delivered for her maiden voyage in 1906. She measured 143,9m in length overall, had a beam of 16,8m and a draft of 7,4m. Tonnage was 8.090 GRT. She fitted four boilers and triple expansion engine driving a single three-bladed propeller for a service speed of 15 knots. Passenger capacity was 812: 15 in first, 25 in second and 772 in third class, plus 213 crew. Higashinada Maru joined Miyabi Maru on the Koko-Hong Kong route, on which she served until her retirement in 1934.
[ img ]

Shizumacho Maru followed in 1906/1908, compared to Higashinada Maru she was longer and beamier, measuring 150,5m in the first case and 17m in the latter. Draft remained unchanged but the tonnage grew to 8.562GRT given the increased dimensions. The engines were not modified, so that the service speed decreased to 13 knots. Shizumacho Maru could carry a total of 860 passengers, 23 in fist class, 37 in second class and 800 in third class. Crew was 225. The ship opened dedicated passenger service between Koko and Korea in 1908, and kept doing so even after the Japanese annexation of the penninsula in 1910. In 1939 Shizumacho maru was finally withdrawn for service and scrapped.
[ img ]

The third ship, Hizu Maru, joined the KoKaYu fleet in 1910. She was slightly longer at 151,2m overall but retained the same 17m of her previous sister. Hull depth was increased however, without losing freeboard draft increased to 7,6m. Tonnage also rose to 8.831 GRT. Engines and service speed were the same as well, at 13 knots, and with the exception of the third class capacity increased to 816 both passenger and crew capacity was unchanged. Even taking into account some more small visual differencies Hizu maru was the ship that looked more similar to the one that preceded her. Like her near-identical sister Shizumacho maru, she served the Koko-Korea route, although by the time Hizu Maru docked there for the first time, the Japanese annexation had already taken place.
[ img ]
Hizu Maru was the oldest ship of the five at the start of WWII and possibly the most neglected of alll KoKayu ocean liners. She was requisitioned by Koko no kaigun and converted into a troopship, somthing that ironically saved her for a possible decommissioning given her age and state. During the works she recieved a much needed overhaul to her boilers -which were converted to all oil-firing. and engines. Repainted in an all-gray scheme she recieved a single old 120mm gun, two triple 25mm anti-air machine guns, searchlights RDF equipments, extra lifeboats and two landing crafts. The standard capacity was for 1.300 troops plus 154 crew.
[ img ]
She was sunk all hands in 1943 after being torpedoed by an USN submarine.

Mami Maru, the fourth ship, was laid down in 1910 an completed in 1912. She was lengthened to 155,3m and widened to 17,2m. Draft remained at 7,6m for a tonnage of 9.175 GRT. She sitted for boilers and triple expansion engines like her previous sisters but all were of improved -more powerful- types, something made obvious by the larger and taller funnel. Her service speed was 15 knots. Passenger capacity was 929: 58 in first class, 76 in second and 795 in third, plus a crew of 233. Mami Maru seved the Toumachi-Shanghai route between 1912 and 1937 before being moved to the Toumachi-Seoul when the second Sino-Japanese war broke out. In 1935 she also had her boilers converted from coal to oil-firing.
[ img ]
Like her other three sisters still in service, Mami Maru was converted into a troopship right after the start of the pacific war. She had a capacity of 1.300 trups and 154 crew like Hizu Maru.
[ img ]
Mami Maru held the much un-enviable record of being the first KoKaYu ocean liner being lost during WWII, bombed by allied carrier-based planes in November 1942 during the Guadalcanal campaign.

Kitamura Maru was the last of the five, entering service in 1914. She was over 14 meters longer than her predecessor at 169,7m overall. This because the decision to add a fifth main cargo hold that led to a much longer bow and the unique feature of being the only KoKaYu ocean liner with three masts. To compensate for the increased length, beam was taken to 17,5m and hull depth increased as well, for higher freeboard at the bow and a draft of 7,9m. tonnage was by far the highest of the quintet, at 10.606 GRT. As an oddity, she retained the single-screw machineries despite a twin-screw setup would have better benefitted her size. To offset this fact, she was given newer boilers, quadruple expansion engines and a four-bladed propeller (plus an enlarged rudder for maneuverability), yet this only mitigated the loss in service speed to 14 knots (although realistically she often did no more than 12 knots). Like Mami Maru she carried 58 first and 76 second class passengers, but third class accomodations were increased to 836, for a total of 970 passengers. Crew was 245. Her default service was between Koko and China, and she was a common sight in shanghai until 1937, after that she was moved to the Koko-Hong Kong route, not before being converted from coal to oil-firing.
[ img ]
Converted into a troopship like Hizu and Mami Maru, Kitamura Maru could usually carry 1.500 troops and a crew of 167. She was the longest lived on the three, staying afloat long enough to get a dazzle camouflage painted in early 1945.
[ img ]
Despite ending in the rebel's hand right from the start of Koko uprisings, she ultimately met her fate in late November 1945 when she hit an uncharted mine (possibly air dropped by the USN during the first days of the uprisings) off Tojima Island and capsized in a little more than an hour-and-half. Luckily with light casualties.

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