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Tzoli — Small Ise class battleship
Published: 2013-02-20 14:27:14 +0000 UTC; Views: 8453; Favourites: 41; Downloads: 71
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Description
An idea for an alternative construction plan for ww1 Era JapanInstead of building 2-2-2 Fuso, Ise and Nagato class BB's
They would built:
2 Normal 6 turreted Fuso, 3 smaller 4 turreted Ise and 2 Nagato or,
2 Smaller 4 turreted Fuso, 4 smaller 4 turreted Ise and 2 Nagato or either
2 Smaller 4 turreted Fuso, 2 smaller 4 turreted Ise and 4 Nagato class battleships
So instead of few many turreted battleship they would have more less turreted ones.
The Simulation:
IJN Ise, Imperial Japanese Navy Small Battleship laid down 1915 (Engine 1935)
Displacement:
24 198 t light; 25 318 t standard; 27 527 t normal; 29 294 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(592,55 ft / 587,93 ft) x 98,43 ft x (30,22 / 31,75 ft)
(180,61 m / 179,20 m) x 30,00 m x (9,21 / 9,68 m)
Armament:
8 - 14,02" / 356 mm 45,0 cal guns - 1 484,81lbs / 673,50kg shells, 50 per gun
Breech loading guns in turret on barbette mounts, 1910 Model
4 x 2-gun mounts on centreline, evenly spread
2 raised mounts
16 - 5,51" / 140 mm 50,0 cal guns - 83,78lbs / 38,00kg shells, 200 per gun
Quick firing guns in casemate mounts, 1914 Model
16 x Single mounts on sides, forward evenly spread
16 hull mounts in casemates- Limited use in heavy seas
8 - 5,00" / 127 mm 40,0 cal guns - 75,66lbs / 34,32kg shells, 200 per gun
Dual purpose guns in deck mounts, 1929 Model
4 x Twin mounts on sides, forward deck aft
2 raised mounts - superfiring
20 - 0,98" / 25,0 mm 60,0 cal guns - 0,53lbs / 0,24kg shells, 4 000 per gun
Anti-air guns in deck mounts, 1935 Model
6 x Twin mounts on sides, evenly spread
2 raised mounts
4 x Twin mounts on sides, evenly spread
4 double raised mounts
Weight of broadside 13 835 lbs / 6 275 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12,0" / 305 mm 413,39 ft / 126,00 m 12,47 ft / 3,80 m
Ends: 2,99" / 76 mm 164,04 ft / 50,00 m 12,27 ft / 3,74 m
10,50 ft / 3,20 m Unarmoured ends
Upper: 7,99" / 203 mm 413,39 ft / 126,00 m 8,01 ft / 2,44 m
Main Belt covers 108 % of normal length
- Torpedo Bulkhead - Strengthened structural bulkheads:
12,0" / 305 mm 413,39 ft / 126,00 m 28,90 ft / 8,81 m
Beam between torpedo bulkheads 98,43 ft / 30,00 m
- Hull void:
0,00" / 0 mm 347,77 ft / 106,00 m 0,00 ft / 0,00 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12,0" / 305 mm 7,99" / 203 mm 12,0" / 305 mm
2nd: 5,98" / 152 mm - -
3rd: 0,98" / 25 mm - -
- Armoured deck - single deck:
For and Aft decks: 3,82" / 97 mm
Forecastle: 0,75" / 19 mm Quarter deck: 0,00" / 0 mm
- Conning towers: Forward 12,01" / 305 mm, Aft 4,02" / 102 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 80 000 shp / 59 680 Kw = 26,39 kts
Range 8 345nm at 16,00 kts
Bunker at max displacement = 3 976 tons
Complement:
1 068 - 1 389
Cost:
£3,341 million / $13,366 million
Distribution of weights at normal displacement:
Armament: 2 648 tons, 9,6 %
- Guns: 2 648 tons, 9,6 %
Armour: 14 803 tons, 53,8 %
- Belts: 4 028 tons, 14,6 %
- Torpedo bulkhead: 5 309 tons, 19,3 %
- Armament: 2 643 tons, 9,6 %
- Armour Deck: 2 510 tons, 9,1 %
- Conning Towers: 315 tons, 1,1 %
Machinery: 2 273 tons, 8,3 %
Hull, fittings & equipment: 4 244 tons, 15,4 %
Fuel, ammunition & stores: 3 329 tons, 12,1 %
Miscellaneous weights: 230 tons, 0,8 %
- Hull below water: 100 tons
- Hull void weights: 20 tons
- Hull above water: 60 tons
- On freeboard deck: 40 tons
- Above deck: 10 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
45 063 lbs / 20 440 Kg = 32,7 x 14,0 " / 356 mm shells or 10,6 torpedoes
Metacentric height 7,8 ft / 2,4 m
Roll period: 14,8 seconds
Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a cruiser stern
Length to Beam Ratio: 5,97 : 1
'Natural speed' for length: 24,25 kts
Power going to wave formation at top speed: 56 %
Ship tends to be wet forward
Ship space, strength and comments:
Waterplane Area: 40 423 Square feet or 3 755 Square metres
Structure weight / hull surface area: 191 lbs/sq ft or 934 Kg/sq metre
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
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Comments: 12
Wow that is a unique word for a battleship
👍: 0 ⏩: 1
U see, looking at all the 20" gunned monsters that you have,this one looks a bit underwhelmed. Still,this class is pretty plausible. Three of this small BBs would have had the same firepower of the two actual Ises, right?
I also don't think they would have converted them into semi- carriers like they did with the real Ises.I mean, they could, removing the aft turrets,but this would leave them with only 4x14" guns...which seems not enough to me.
👍: 0 ⏩: 1
According to the Ship Simulator their speed would be around 26knots which is 3 knots faster than their original form. I don't think they would have been converted, or if done so then a full scale carrier as they are shortened quite a bit!
As for the 20inch battleships, these were the only real proposals for such Battleships:
4th and 5th sister ships of the Yamato
127mm AA gunnerd version:
[link]
100mm AA Gunned version:
[link]
The True Super Yamato:
[link]
And the Fujimoto Dream Battleship with 50 kiloton light displacement and paper thin 152m Belt 76mm Deck Armour!
[link]
👍: 0 ⏩: 1
I would have gone for the super Yamato and Yamato-kai
What about the german H-class porposals? I know the last two ones (H-43 and H-44) seem unplausible, but... dreaming is for free!
👍: 0 ⏩: 1
[link]
H-41 is the last design that could have been built by germany at that time
👍: 0 ⏩: 1
The one with 4x2 17" main guns, right?
👍: 0 ⏩: 1
yep
H39-H40: 406mm
H41: 420mm
H42-H43: 480mm
H44: 508mm
H45: 800mm
👍: 0 ⏩: 0
Sometimes numbers are more important than individual quality, British warship design usually reflected this philosophy.
👍: 0 ⏩: 1
Indeed as they are smaller ships, they are faster (engine space not changes so same engine, smaller ship and displacement) so they can keep up with maybe the Kongo's as well or at least guard the carriers.
👍: 0 ⏩: 0