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heuhen
Post subject: Re: Oversized Battleships by BB1987Posted: July 31st, 2012, 11:04 am
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sinc you have VLS you don't need ABL and by moving the VLS a bit you can have the harpoon there, you can have them en on the aft deck to because guns very often shoot over side for preventing damage to the deck. bud you have to remember to make place for a helicopter to land. missile director and gun director can you move down a deck. for there are not need for the aft superstructure to be that high.


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BB1987
Post subject: Re: Oversized Battleships by BB1987Posted: July 31st, 2012, 4:49 pm
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Ok, implemented some changes to BB-79 using Heuhen and Chris Roach suggestions as basis.

-deleted one of the RAM launchers
-deleted all ABL
-lowered the VLS by 5 meters, also shifted in place of the removed ABL
-scaled the VLS cells from 247 to 186 (256 ESSM in 64 quadpacks, 32 RIM-156, 32 RIM-161, 58 Tomahawks) in two 93-cell mounts, one port one starboard
-moved both Harpoon launcher next to each other where the VLS once was (also lowered the whole aft superstructure by a couple of meters
-moved the aft phalanx about 7 meters to the front in order to lower the Mark 37/25 and SPG-62 directors whithout impairing them
-placed SPY-1 arrays in a Ticonderoga setup (also, the aft-facing one it's not on centerline in order to avoid beign impaired by the Mark 37/25 director)
-removed the compass platform in order to fit the front-facing array, enlarged a bit the main bridge to make up for the loss
-implemented the same changes to the short hull version (the one with no 8-inch guns as suggested by Thiel) wich now has become BB-80 Oklahoma.

BB-79:
[ img ]

BB-80:
[ img ]

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heuhen
Post subject: Re: Oversized Battleships by BB1987Posted: July 31st, 2012, 5:09 pm
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just a nitpick. if you can you should lover the forward SPY-1 a bit. for example to just above the gun director. For if I am not remembering wrong, we have had a discussion in SB about how high SPY-1 can be mounted be mounted. (What I believe it's all about weight) And what I am told by a navy elctro engineer is that if you mount the SPY-1 to low you can get a type of problem (flash/blimp/fogy view) that can be fixed by mounting it higher, but he had never heard about a limit on hove high just he limit of what the vessel can carry.

My suggestion is to look at other vessels with SPY-1 and place those SPY-1 in a bit similar high. if you can't get i so low you can just say someone come with a solution to fix that problem and thus you can have it that high (IT's AU afterall)


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TimothyC
Post subject: Re: Oversized Battleships by BB1987Posted: July 31st, 2012, 6:05 pm
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Nice work.

A few things I would do (not critical) include updating the SLQ-32 to the latest version (which can be found in the USN parts thread). I'd also think about replacing all of the old gun direction equipment with more modern kit such as SPQ-9 and SPG-60 (you already have an SPQ-9 between the main tower and the funnel so you wouldn't be adding much in the way of new equipment).

One last thing I would do is I would swap out the main air search radar you have for the planar SPS-49. It was a '90s proposal that would have increased the performance of the SPS-49, and would have an aesthetic closer to what you have there while being a US part. I think it is already posted in the USN parts thread, but I'll try and get it posted in this thread later tonight.

One final note before I post this is that I'd replace the TACAN unit atop the aft pole mast with the newer rendition that can be found on the Spruance drawings.

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BB1987
Post subject: Re: Oversized Battleships by BB1987Posted: July 31st, 2012, 8:03 pm
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Two questions TimothyC, one related and one not related to your suggestions:

-about the Mark 37/25 and the Mark 38/13:
my idea for BB-79 (and now also for BB-80) was that they where first refitted in 1982/83 just as the Iowas where, thus retaining the old WWII directors despite the addition of new systems, and then refitted again in the 00's with the addition of SPY systems and VLS; would an hypotetic second refit for the Iowas require the replacement of the old fire-control directors? and just the MK37/25 or also the 38/13? in that case SPQ-9 will replace the MK37/25 and SPG-60 the MK38/13 or the setup will be different?


-where i can find the updated templates? i have only the XXL one and i can't remember where i find it, the ones in the main sites are outdated if i'm not mistaken

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TimothyC
Post subject: Re: Oversized Battleships by BB1987Posted: July 31st, 2012, 8:17 pm
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The current templates can be found here.

As for the fire control systems I will get back to you on placement.

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BB1987
Post subject: Re: Oversized Battleships by BB1987Posted: July 31st, 2012, 9:20 pm
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Oh man, the "New Templates" thread was even a sticky one, and i was still missing it! :oops:
thanks, maybe it's time for me to check if i need some new glasses :lol:

As for the fire-control directors, i'll probably think about it on a long-term basis or leave them as they are now; so i'm calling BB-79 and BB-80 as completed.
[ img ]

(no BB-80 pic this time, since the systems are the same it would be redundant)



next:
IJN Muteki Nippon again, this time hopefully with the aircraft crane, seaplanes and other missing details (like ralings...)

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BB1987
Post subject: Re: Oversized Battleships by BB1987Posted: August 1st, 2012, 3:58 pm
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IJN Muteki Nippon 99% complete:

[ img ]


Muteki Nippon, Japan Battleship laid down 1946

Displacement:
114.994 t light; 122.010 t standard; 129.708 t normal; 135.867 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(1.218,67 ft / 1.186,02 ft) x 155,84 ft x (37,73 / 39,25 ft)
(371,45 m / 361,50 m) x 47,50 m x (11,50 / 11,96 m)

Armament:
12 - 20,00" / 508 mm 50,0 cal guns - 4.234,56lbs / 1.920,76kg shells, 130 per gun
Breech loading guns in turret on barbette mounts, 1946 Model
4 x Triple mounts on centreline ends, evenly spread
2 raised mounts - superfiring
12 - 6,10" / 155 mm 65,0 cal guns - 125,98lbs / 57,14kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1946 Model
2 x Triple mounts on sides, forward deck aft
2 raised mounts
2 x Triple mounts on centreline ends, evenly spread
2 double raised mounts
32 - 5,00" / 127 mm 65,0 cal guns - 69,30lbs / 31,43kg shells, 470 per gun
Dual purpose guns in deck and hoist mounts, 1946 Model
6 x Twin mounts on sides, aft evenly spread
2 raised mounts
10 x Twin mounts on sides, forward evenly spread
2 raised mounts
201 - 0,98" / 25,0 mm 60,0 cal guns - 0,52lbs / 0,24kg shells, 790 per gun
Machine guns in deck mounts, 1946 Model
40 x Triple mounts on sides, evenly spread
10 raised mounts
27 x Triple mounts on centreline, evenly spread
9 double raised mounts
8 - 0,51" / 13,0 mm 70,0 cal guns - 0,08lbs / 0,03kg shells, 1.410 per gun
Machine guns in deck mounts, 1946 Model
4 x twin mounts on centreline, evenly spread
4 double raised mounts
Weight of broadside 54.649 lbs / 24.788 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 20,0" / 508 mm 652,82 ft / 198,98 m 14,99 ft / 4,57 m
Ends: 6,10" / 155 mm 68,90 ft / 21,00 m 14,99 ft / 4,57 m
464,30 ft / 141,52 m Unarmoured ends
Upper: 7,87" / 200 mm 652,82 ft / 198,98 m 8,01 ft / 2,44 m
Main Belt covers 85% of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
3,07" / 78 mm 652,82 ft / 198,98 m 36,22 ft / 11,04 m
Beam between torpedo bulkheads 149,28 ft / 45,50 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 25,6" / 650 mm 18,0" / 457 mm 15,0" / 380 mm
2nd: 1,97" / 50 mm 0,98" / 25 mm 0,98" / 25 mm
3rd: 0,98" / 25 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 7,64" / 194 mm

- Conning towers: Forward 21,97" / 558 mm, Aft 0,00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 279.363 shp / 208.405 Kw = 30,00 kts
Range 7.200nm at 20,00 kts
Bunker at max displacement = 13.858 tons

Complement:
3.416 - 4.442

Cost:
£76,478 million / $305,912 million

Distribution of weights at normal displacement:
Armament: 9.576 tons, 7,4%
- Guns: 9.576 tons, 7,4%
Armour: 37.940 tons, 29,2%
- Belts: 10.797 tons, 8,3%
- Torpedo bulkhead: 2.687 tons, 2,1%
- Armament: 8.836 tons, 6,8%
- Armour Deck: 14.407 tons, 11,1%
- Conning Tower: 1.213 tons, 0,9%
Machinery: 6.977 tons, 5,4%
Hull, fittings & equipment: 60.231 tons, 46,4%
Fuel, ammunition & stores: 14.714 tons, 11,3%
Miscellaneous weights: 270 tons, 0,2%
- Hull above water: 270 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
209.988 lbs / 95.249 Kg = 52,5 x 20,0 " / 508 mm shells or 40,6 torpedoes
Stability (Unstable if below 1.00): 1,23
Metacentric height 14,3 ft / 4,3 m
Roll period: 17,3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0,43
Seaboat quality (Average = 1.00): 1,02

Hull form characteristics:
Hull has a flush deck,
a straight bulbous bow and a round stern
Block coefficient (normal/deep): 0,651 / 0,655
Length to Beam Ratio: 7,61 : 1
'Natural speed' for length: 34,44 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 41,00 degrees
Stern overhang: 0,98 ft / 0,30 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 27,00%, 36,42 ft / 11,10 m, 23,62 ft / 7,20 m
- Forward deck: 30,00%, 23,62 ft / 7,20 m, 23,62 ft / 7,20 m
- Aft deck: 22,00%, 23,62 ft / 7,20 m, 23,62 ft / 7,20 m
- Quarter deck: 21,00%, 23,62 ft / 7,20 m, 16,40 ft / 5,00 m
- Average freeboard: 24,25 ft / 7,39 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 61,9%
- Above water (accommodation/working, high = better): 186,7%
Waterplane Area: 141.720 Square feet or 13.166 Square metres
Displacement factor (Displacement / loading): 121%
Structure weight / hull surface area: 356 lbs/sq ft or 1.739 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,28
- Longitudinal: 0,91
- Overall: 1,00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room



comments, suggestions and constructive criticism are welcome.

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KHT
Post subject: Re: Oversized Battleships by BB1987Posted: August 1st, 2012, 4:45 pm
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First thought is to use more Yamato-esque props.


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BB1987
Post subject: Re: Oversized Battleships by BB1987Posted: August 1st, 2012, 7:11 pm
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redone with a modified and enlarged version of ALVAMA's Yamato propellers

[ img ]

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