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AU Shin Japan: Jamato class CV
http://67.205.157.234/forums/viewtopic.php?f=18&t=2801
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Author:  rufusexc-1 [ March 12th, 2012, 10:45 am ]
Post subject:  AU Shin Japan: Jamato class CV

I do not know if this is the just place where to mail. From an idea that has come to me seeing a post on Warship Project, I have taken two images of Crazyhorse and I have modified them in order to create a class of aircraft carriers of my nation in Nationstates.
Still not I have completed it.
[ img ]

Author:  Thiel [ March 12th, 2012, 10:48 am ]
Post subject:  Re: AU Shin Japan: Jamato class CV

You're in the right place but you need to adjust your photobucket settings to 1mb so the image retains its original size.

Author:  rufusexc-1 [ March 12th, 2012, 11:01 am ]
Post subject:  Re: AU Shin Japan: Jamato class CV

Thiel wrote:
You're in the right place but you need to adjust your photobucket settings to 1mb so the image retains its original size.
Thank you!

[ img ]

Author:  Thiel [ March 12th, 2012, 11:11 am ]
Post subject:  Re: AU Shin Japan: Jamato class CV

I assume you're using gas turbines?
If that's the case you'll need a much bigger exhaust since the Nimitz class has more than 2.5 times the engine power of a Hyuga.
You'll also need to move it forward in order to gain room in the hull for the turbines.

Author:  rufusexc-1 [ March 12th, 2012, 11:32 am ]
Post subject:  Re: AU Shin Japan: Jamato class CV

Thiel wrote:
I assume you're using gas turbines?
If that's the case you'll need a much bigger exhaust since the Nimitz class has more than 2.5 times the engine power of a Hyuga.
You'll also need to move it forward in order to gain room in the hull for the turbines.
I don't think for a ship of approximately 100,000 tons that it is convenient to use gas turbines as propulsive system. I thought more to a system like steam propulsion like Kennedy aircraft carrier.

CV Yamato (Nimitz) vs [J.F. Kennedy]:
Displacement: 100,000 tons [82,655 tons full load]
Length: Overall: 1,092 feet (332.8 m) [1,052 ft (321 m)]
Waterline: 1,040 feet (317.0 m) [990 ft (300 m)]
Beam: Overall: 252 ft (76.8 m) [252 ft (77 m)]
Waterline: 134 ft (40.8 m) [130 ft (40 m)]
Draft: Maximum navigational: 37 ft (11.3 m) [36 ft (11 m) maximum]
Limit: 41 ft (12.5 m) [37 ft (11 m) limit]
Propulsion: [8 Babcock and Wilcox boilers 1200 PSI, 4 steam turbines, 4 shafts, 280,000 shp (210 MW)]
Speed: 31.5 knots (58.3 km/h)

Author:  Thiel [ March 12th, 2012, 11:41 am ]
Post subject:  Re: AU Shin Japan: Jamato class CV

That's as much a result of the maturity of large gas turbine installations at the time and the need for steam for the catapults.
Anyway, my points still stands. You're going to need a much bigger stack in order to accommodate the much bigger power output and you'll need to move it forward in order to have enough hull volume to fit the engines. This is even more true for a more bulky steam plant.

Author:  rufusexc-1 [ March 12th, 2012, 12:14 pm ]
Post subject:  Re: AU Shin Japan: Jamato class CV

Thiel wrote:
That's as much a result of the maturity of large gas turbine installations at the time and the need for steam for the catapults.
Anyway, my points still stands. You're going to need a much bigger stack in order to accommodate the much bigger power output and you'll need to move it forward in order to have enough hull volume to fit the engines. This is even more true for a more bulky steam plant.
If you watch the Kennedy, the position of the funnel is approximately the same of my ship. I have eliminated the elevator that is found before the bridge. The Kennedy has one funnel, my ship has two funnels.
See this: http://www.shipbucket.com/images.php?di ... ennedy.png

Author:  rufusexc-1 [ March 12th, 2012, 1:43 pm ]
Post subject:  Re: AU Shin Japan: Jamato class CV

Here instead the structure of the island for the nuclear propulsion version: CVN Kaga-class.

[ img ]

Author:  erik_t [ March 12th, 2012, 3:48 pm ]
Post subject:  Re: AU Shin Japan: Jamato class CV

rufusexc-1 wrote:
Thiel wrote:
That's as much a result of the maturity of large gas turbine installations at the time and the need for steam for the catapults.
Anyway, my points still stands. You're going to need a much bigger stack in order to accommodate the much bigger power output and you'll need to move it forward in order to have enough hull volume to fit the engines. This is even more true for a more bulky steam plant.
If you watch the Kennedy, the position of the funnel is approximately the same of my ship. I have eliminated the elevator that is found before the bridge. The Kennedy has one funnel, my ship has two funnels.
See this: http://www.shipbucket.com/images.php?di ... ennedy.png
Gas turbines require much more intake air, and produce much more exhaust, than do steam plants.

Your credits are wrong. They should be (crazyhorse, rufusexc-1)

Author:  Demon Lord Razgriz [ March 12th, 2012, 8:33 pm ]
Post subject:  Re: AU Shin Japan: Jamato class CV

[ img ]

Inspiration for this design, yes?

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