Challenge "My Countries First Dreadnought" 1905-10

If your country is an oil producer and refiner, then it would be most advantageous to have an oil fired battlewagon. If your Country is predominantly a coal producer, then go with coal. If your country does both... probably will do the cheaper of the two.

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"It is better to type nothing and be assumed an ass, than to type something and remove all doubt." - Me

Personally, I would not try to go oil-firing at all costs, a coal-firing ship with a 28 knots top speed in 1908 would still be the fastest capital ship around.
This would allow you to outrun everyone for years to come, other than probably allow you to shorten the hull a bit more (you are longer than everything to come until the renowns) and devote all the remaining displacement to Armor. At the moment you have only turret and deck armor but no belt whatsoever. This in a period were naval battles were fought at closer distances with less emphasis on plunging fire (most pre-jutland designs had rather thin decks but thicker belts). A capital ship (beign it a battleship or a battlecruiser) without side armor is a disaster waiting to happen even if it engages smaller cruisers.

Ok, I've decided to quickly land something here because.. dunno.. let's say that Koko briefly contemplated a much smaller first Dreadnought Battleship before ditching the idea and starting to focus on what will later become the much larger and powerful (and even faster) Yagumo class.
Here is the 1908-1909 proposal:
[ img ]

1908-1909 study, Koko Battleship laid down 1909

Displacement:
15.985 t light; 16.786 t standard; 18.779 t normal; 20.373 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(536,09 ft / 521,00 ft) x 82,02 ft x (26,25 / 28,06 ft)
(163,40 m / 158,80 m) x 25,00 m x (8,00 / 8,55 m)

Armament:
6 - 12,01" / 305 mm 50,0 cal guns - 850,98lbs / 386,00kg shells, 100 per gun
Breech loading guns in turret on barbette mounts, 1905 Model
3 x Twin mounts on centreline ends, majority aft
1 raised mount aft - superfiring
12 - 5,98" / 152 mm 50,0 cal guns - 100,00lbs / 45,36kg shells, 150 per gun
Breech loading guns in casemate mounts, 1910 Model
12 x Single mounts on sides, evenly spread
12 hull mounts in casemates- Limited use in heavy seas
4 - 5,98" / 152 mm 40,0 cal guns - 100,00lbs / 45,36kg shells, 150 per gun
Breech loading guns in deck mounts, 1906 Model
4 x Single mounts on sides, evenly spread
6 - 2,99" / 76,0 mm 40,0 cal guns - 12,50lbs / 5,67kg shells, 200 per gun
Breech loading guns in deck mounts, 1908 Model
6 x Single mounts on sides, evenly spread
4 raised mounts
Weight of broadside 6.781 lbs / 3.076 kg
Main Torpedoes
8 - 17,7" / 450 mm, 16,70 ft / 5,09 m torpedoes - 0,779 t each, 6,232 t total
submerged side tubes
2nd Torpedoes
4 - 17,7" / 450 mm, 16,70 ft / 5,09 m torpedoes - 0,779 t each, 3,116 t total
submerged stern tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12,0" / 305 mm 313,42 ft / 95,53 m 15,88 ft / 4,84 m
Ends: 5,00" / 127 mm 207,55 ft / 63,26 m 8,01 ft / 2,44 m
Upper: 5,98" / 152 mm 216,77 ft / 66,07 m 16,47 ft / 5,02 m
Main Belt covers 93% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11,0" / 279 mm 2,99" / 76 mm 9,02" / 229 mm
2nd: 5,98" / 152 mm - -
3rd: 5,98" / 152 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 2,01" / 51 mm

- Conning towers: Forward 10,00" / 254 mm, Aft 10,00" / 254 mm

Machinery:
Coal fired boilers, steam turbines,
Direct drive, 2 shafts, 38.466 shp / 28.695 Kw = 23,00 kts
Range 2.700nm at 18,00 kts
Bunker at max displacement = 3.587 tons (100% coal)

Complement:
801 - 1.042

Cost:
£1,491 million / $5,965 million

Distribution of weights at normal displacement:
Armament: 1.396 tons, 7,4%
- Guns: 1.377 tons, 7,3%
- Weapons: 19 tons, 0,1%
Armour: 6.360 tons, 33,9%
- Belts: 4.014 tons, 21,4%
- Armament: 1.152 tons, 6,1%
- Armour Deck: 890 tons, 4,7%
- Conning Towers: 304 tons, 1,6%
Machinery: 1.923 tons, 10,2%
Hull, fittings & equipment: 6.106 tons, 32,5%
Fuel, ammunition & stores: 2.794 tons, 14,9%
Miscellaneous weights: 200 tons, 1,1%
- Hull above water: 100 tons
- On freeboard deck: 100 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
31.488 lbs / 14.283 Kg = 36,4 x 12,0 " / 305 mm shells or 5,7 torpedoes
Stability (Unstable if below 1.00): 1,18
Metacentric height 5,0 ft / 1,5 m
Roll period: 15,4 seconds
Steadiness - As gun platform (Average = 50 %): 82 %
- Recoil effect (Restricted arc if above 1.00): 0,71
Seaboat quality (Average = 1.00): 1,64

Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a round stern
Block coefficient (normal/deep): 0,586 / 0,595
Length to Beam Ratio: 6,35 : 1
'Natural speed' for length: 22,83 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 18,00 degrees
Stern overhang: 6,00 ft / 1,83 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 19,54%, 27,99 ft / 8,53 m, 26,97 ft / 8,22 m
- Forward deck: 35,15%, 26,97 ft / 8,22 m, 26,48 ft / 8,07 m
- Aft deck: 25,01%, 17,49 ft / 5,33 m, 17,98 ft / 5,48 m
- Quarter deck: 20,30%, 17,98 ft / 5,48 m, 19,49 ft / 5,94 m
- Average freeboard: 22,98 ft / 7,00 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 67,2%
- Above water (accommodation/working, high = better): 168,6%
Waterplane Area: 30.847 Square feet or 2.866 Square metres
Displacement factor (Displacement / loading): 112%
Structure weight / hull surface area: 145 lbs/sq ft or 710 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,29
- Overall: 1,00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Looks very good BB1987, more like a first battlecruiser with the 23 knot speed. If it could grow a little bit with space for 24-25 knot propulsion it would be perfect.

Krakatoa wrote:

Looks very good BB1987, more like a first battlecruiser with the 23 knot speed. If it could grow a little bit with space for 24-25 knot propulsion it would be perfect.

True. Tweaking with armour belt size (while keeping it's thickness!) I could even push her as high as 26 knots, I've noticed that while crafting the ship with springsharp's help. Ultimatedly I've chosen to stick with a "flawled" 23knot unit to get some sort of continuity between the Goryo and the Yagumo classes of my Koko AU: Goryo is the 23-24knot proto-BC and Yagumo is the 25knot BB superior in every aspect (speed,weapons, armor..). This way it is also outright why the drawing depicts something that remained just a paper design. (yes, I love to complicate things even when I could have just gone blue-sky-thinking and come with the 26-knot ship

)

Anyway, it is of an interesting note that this ship sports the same armor values of the Japanese Kawachis while beign a bit faster. And while her overall armament is decidedly inferior to that of the Japanese Dreadnought (6 guns instead of twelve), it is peculiar that Kawachi's broadside was limited to 8 guns while this ship can use her 6-gun fully (and all guns are 50-cal ones instead of the mixed 50/45 of the Kawachis), superfiring turrets magic!

Very nice ship BB1917

She would make a very good battleship especially if you might well need to run away (due to numbers of opponents) with 4 guns firing backwards and 2Kn speed advantage v dreadnought or more 4+ v most (19Kn or less) PDs. (she would also threaten a lots of old ACs)

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Hood's Worklist
English Electric Canberra FD
Interwar RN Capital Ships
Super-Darings
Never-Were British Aircraft

Here's the revised Springsharp, I should have the ship's side done within and hour or two, mostly completed.

MIN Dauntless, Muscatatuck IBDN laid down 1905

Displacement:
12,175 t light; 12,786 t standard; 14,388 t normal; 15,670 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(400.16 ft / 398.50 ft) x 30.00 ft (Bulges 80.00 ft) x (22.00 / 26.61 ft)
(121.97 m / 121.46 m) x 9.14 m (Bulges 24.38 m) x (6.71 / 8.11 m)

Armament:
6 - 12.00" / 305 mm 45.0 cal guns - 871.38lbs / 395.25kg shells, 80 per gun
Breech loading guns in turret on barbette mounts, 1905 Model
2 x Twin mounts on centreline, aft deck aft
1 raised mount aft - superfiring
1 x Twin mount on centreline, forward deck forward
1 raised mount
16 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1905 Model
4 x Quad mounts on sides, evenly spread
Weight of broadside 6,310 lbs / 2,862 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7.00" / 178 mm 290.00 ft / 88.39 m 15.00 ft / 4.57 m
Ends: 2.00" / 51 mm 90.00 ft / 27.43 m 20.00 ft / 6.10 m
18.50 ft / 5.64 m Unarmoured ends
Main Belt covers 112 % of normal length

- Torpedo Bulkhead - Strengthened structural bulkheads:
4.00" / 102 mm 375.00 ft / 114.30 m 7.00 ft / 2.13 m
Beam between torpedo bulkheads 30.00 ft / 9.14 m

- Hull Bulges:
2.00" / 51 mm 375.00 ft / 114.30 m 18.00 ft / 5.49 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7.00" / 178 mm 4.00" / 102 mm 7.00" / 178 mm
2nd: 3.00" / 76 mm 3.00" / 76 mm 3.00" / 76 mm

- Protected deck - single deck:
For and Aft decks: 2.00" / 51 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 22,765 ihp / 16,983 Kw = 20.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 2,884 tons (100% coal)

Complement:
656 - 853

Cost:
£1.479 million / $5.916 million

Distribution of weights at normal displacement:
Armament: 1,179 tons, 8.2 %
- Guns: 1,179 tons, 8.2 %
Armour: 3,580 tons, 24.9 %
- Belts: 1,351 tons, 9.4 %
- Torpedo bulkhead: 389 tons, 2.7 %
- Bulges: 500 tons, 3.5 %
- Armament: 1,062 tons, 7.4 %
- Armour Deck: 279 tons, 1.9 %
Machinery: 3,299 tons, 22.9 %
Hull, fittings & equipment: 4,117 tons, 28.6 %
Fuel, ammunition & stores: 2,213 tons, 15.4 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9,365 lbs / 4,248 Kg = 10.8 x 12.0 " / 305 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.38
Metacentric height 1.4 ft / 0.4 m
Roll period: 28.0 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.80
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has low quarterdeck ,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.718 / 0.647
Length to Beam Ratio: 4.98 : 1
'Natural speed' for length: 19.96 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: -10.00 ft / -3.05 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 19.00 ft / 5.79 m, 19.00 ft / 5.79 m
- Forward deck: 30.00 %, 19.00 ft / 5.79 m, 19.00 ft / 5.79 m
- Aft deck: 30.00 %, 19.00 ft / 5.79 m, 19.00 ft / 5.79 m
- Quarter deck: 20.00 %, 11.00 ft / 3.35 m, 12.50 ft / 3.81 m
- Average freeboard: 17.55 ft / 5.35 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 111.0 %
- Above water (accommodation/working, high = better): 53.7 %
Waterplane Area: 9,736 Square feet or 905 Square metres
Displacement factor (Displacement / loading): 91 %
Structure weight / hull surface area: 155 lbs/sq ft or 756 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 4.00
- Overall: 1.08
Adequate machinery, storage, compartmentation space
Cramped accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

your overall strenght is 1.08, you can squeeze a bit more speed from her and get 1.00 if you want, then your ship will be pretty rounded

It will be interesting to see how it turns out. I would note from the SS report that your ship is only 30 feet wide, which might need a bit more to fit 12" turrets on.

Shipbucket

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