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Denodon — Markovich Class Battleship by-nc-nd

Published: 2011-01-30 06:43:36 +0000 UTC; Views: 2608; Favourites: 23; Downloads: 0
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Description Design for a battleship as successor to the Fyodorov Class Battlecruisers. I'll type up a ship history when I have one ready.

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R.S.N Markovich, United Socialist States of Sieran Battleship laid down 1940

Displacement:
41,135 t light; 43,851 t standard; 48,629 t normal; 52,451 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(814.52 ft / 794.00 ft) x 118.00 ft x (31.00 / 32.93 ft)
(248.27 m / 242.01 m) x 35.97 m x (9.45 / 10.04 m)

Armament:
9 - 16.00" / 406 mm 48.0 cal guns - 2,144.97lbs / 972.94kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
14 - 5.00" / 127 mm 48.0 cal guns - 65.46lbs / 29.69kg shells, 150 per gun
Dual purpose guns in deck mounts, 1940 Model
7 x Twin mounts on sides, evenly spread
4 raised mounts
20 - 4.10" / 104 mm 52.0 cal guns - 36.80lbs / 16.69kg shells, 800 per gun
Breech loading guns in deck mounts, 1940 Model
10 x Twin mounts on sides, evenly spread
6 raised mounts
20 - 1.57" / 40.0 mm 65.0 cal guns - 2.16lbs / 0.98kg shells, 2,200 per gun
Breech loading guns in deck mounts, 1940 Model
20 x Single mounts on sides, evenly spread
Weight of broadside 21,000 lbs / 9,526 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.0" / 356 mm 398.00 ft / 121.31 m 13.04 ft / 3.97 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 385.44 ft / 117.48 m 8.00 ft / 2.44 m
Main Belt covers 77 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
3.50" / 89 mm 357.30 ft / 108.91 m 29.35 ft / 8.95 m
Beam between torpedo bulkheads 110.00 ft / 33.53 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 8.70" / 221 mm 18.0" / 457 mm
2nd: 3.90" / 99 mm 1.60" / 41 mm -
3rd: 1.20" / 30 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 6.00" / 152 mm

- Conning towers: Forward 7.90" / 201 mm, Aft 5.90" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 4 shafts, 161,891 shp / 120,770 Kw = 30.28 kts
Range 8,871nm at 19.00 kts
Bunker at max displacement = 8,600 tons

Complement:
1,636 - 2,128

Cost:
£24.339 million / $97.356 million

Distribution of weights at normal displacement:
Armament: 3,616 tons, 7.4 %
- Guns: 3,616 tons, 7.4 %
Armour: 14,412 tons, 29.6 %
- Belts: 3,641 tons, 7.5 %
- Torpedo bulkhead: 1,358 tons, 2.8 %
- Armament: 4,176 tons, 8.6 %
- Armour Deck: 4,842 tons, 10.0 %
- Conning Towers: 396 tons, 0.8 %
Machinery: 4,329 tons, 8.9 %
Hull, fittings & equipment: 18,778 tons, 38.6 %
Fuel, ammunition & stores: 7,494 tons, 15.4 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
77,530 lbs / 35,167 Kg = 37.9 x 16.0 " / 406 mm shells or 12.7 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 9.7 ft / 2.9 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.586 / 0.595
Length to Beam Ratio: 6.73 : 1
'Natural speed' for length: 30.63 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 8.00 ft / 2.44 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 31.00 ft / 9.45 m, 25.36 ft / 7.73 m
- Forward deck: 30.00 %, 25.36 ft / 7.73 m, 21.72 ft / 6.62 m
- Aft deck: 15.00 %, 21.72 ft / 6.62 m, 21.72 ft / 6.62 m
- Quarter deck: 35.00 %, 21.72 ft / 6.62 m, 24.72 ft / 7.53 m
- Average freeboard: 23.97 ft / 7.31 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 72.8 %
- Above water (accommodation/working, high = better): 185.1 %
Waterplane Area: 69,334 Square feet or 6,441 Square metres
Displacement factor (Displacement / loading): 115 %
Structure weight / hull surface area: 219 lbs/sq ft or 1,071 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.35
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Related content
Comments: 24

dragon123890 [2011-01-30 14:43:21 +0000 UTC]

hey denodon can you make the prototype american NLOS cannon you can search it on youtube

👍: 0 ⏩: 1

Denodon In reply to dragon123890 [2011-01-31 00:47:05 +0000 UTC]

hmm?

👍: 0 ⏩: 2

LeRoiDesRoux1 In reply to Denodon [2011-01-31 05:20:57 +0000 UTC]

I think he means the XM1203 Non Line Of Sight-Cannon (NLOS-C) [link] (NLOS-C).jpg

And pretty nice battleship btw. :3

👍: 0 ⏩: 2

Denodon In reply to LeRoiDesRoux1 [2011-01-31 09:21:01 +0000 UTC]

ah I see. Your link doesn't work though.

Thanks

👍: 0 ⏩: 0

LeRoiDesRoux1 In reply to LeRoiDesRoux1 [2011-01-31 05:23:48 +0000 UTC]

Darn, the link doesn't work... Try this one: [link]

👍: 0 ⏩: 0

dragon123890 In reply to Denodon [2011-01-31 00:50:00 +0000 UTC]

i was woundering if you could its on youtube and its averry cool viecle if you aske me

👍: 0 ⏩: 0

leovictor [2011-01-30 08:15:23 +0000 UTC]

last detail:

"- Cross-sectional: 0.99
- Longitudinal: 1.33
- Overall: 1.02"

You can max the overall hull strength to 1.00.
You get the "Balanced" note

👍: 0 ⏩: 1

Denodon In reply to leovictor [2011-01-30 08:18:42 +0000 UTC]

alright. here is the data with some edits;

R.S.N Markovich, United Socialist States of Sieran Battleship laid down 1940

Displacement:
38,243 t light; 43,851 t standard; 48,629 t normal; 52,451 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(814.52 ft / 794.00 ft) x 118.00 ft x (31.00 / 32.93 ft)
(248.27 m / 242.01 m) x 35.97 m x (9.45 / 10.04 m)

Armament:
9 - 16.00" / 406 mm 48.0 cal guns - 2,144.97lbs / 972.94kg shells, 350 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
14 - 5.90" / 150 mm 48.0 cal guns - 107.54lbs / 48.78kg shells, 600 per gun
Dual purpose guns in deck mounts, 1940 Model
7 x Twin mounts on sides, evenly spread
4 raised mounts
20 - 4.10" / 104 mm 52.0 cal guns - 36.80lbs / 16.69kg shells, 800 per gun
Breech loading guns in deck mounts, 1940 Model
10 x Twin mounts on sides, evenly spread
6 raised mounts
20 - 1.57" / 40.0 mm 65.0 cal guns - 2.17lbs / 0.98kg shells, 2,200 per gun
Breech loading guns in deck mounts, 1940 Model
20 x Single mounts on sides, evenly spread
Weight of broadside 21,589 lbs / 9,793 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.0" / 330 mm 415.00 ft / 126.49 m 13.04 ft / 3.97 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 385.44 ft / 117.48 m 8.00 ft / 2.44 m
Main Belt covers 80 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Torpedo Bulkhead - Additional damage containing bulkheads:
4.00" / 102 mm 357.30 ft / 108.91 m 29.35 ft / 8.95 m
Beam between torpedo bulkheads 110.00 ft / 33.53 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 8.70" / 221 mm 1.60" / 41 mm
2nd: 3.90" / 99 mm 1.60" / 41 mm -
3rd: 1.20" / 30 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 4.70" / 119 mm

- Conning towers: Forward 7.90" / 201 mm, Aft 5.90" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 4 shafts, 161,891 shp / 120,770 Kw = 30.28 kts
Range 8,871nm at 19.00 kts
Bunker at max displacement = 8,600 tons

Complement:
1,636 - 2,128

Cost:
£23.908 million / $95.631 million

Distribution of weights at normal displacement:
Armament: 3,709 tons, 7.6 %
- Guns: 3,709 tons, 7.6 %
Armour: 10,533 tons, 21.7 %
- Belts: 3,501 tons, 7.2 %
- Torpedo bulkhead: 1,552 tons, 3.2 %
- Armament: 1,291 tons, 2.7 %
- Armour Deck: 3,793 tons, 7.8 %
- Conning Towers: 396 tons, 0.8 %
Machinery: 4,329 tons, 8.9 %
Hull, fittings & equipment: 17,872 tons, 36.8 %
Fuel, ammunition & stores: 10,386 tons, 21.4 %
Miscellaneous weights: 1,800 tons, 3.7 %
- Hull below water: 1,800 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
71,934 lbs / 32,629 Kg = 35.1 x 16.0 " / 406 mm shells or 10.8 torpedoes
Stability (Unstable if below 1.00): 1.45
Metacentric height 12.1 ft / 3.7 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.13

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.586 / 0.595
Length to Beam Ratio: 6.73 : 1
'Natural speed' for length: 30.63 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 8.00 ft / 2.44 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 31.00 ft / 9.45 m, 25.36 ft / 7.73 m
- Forward deck: 30.00 %, 25.36 ft / 7.73 m, 21.72 ft / 6.62 m
- Aft deck: 15.00 %, 21.72 ft / 6.62 m, 21.72 ft / 6.62 m
- Quarter deck: 35.00 %, 21.72 ft / 6.62 m, 24.72 ft / 7.53 m
- Average freeboard: 23.97 ft / 7.31 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 84.3 %
- Above water (accommodation/working, high = better): 185.1 %
Waterplane Area: 69,334 Square feet or 6,441 Square metres
Displacement factor (Displacement / loading): 120 %
Structure weight / hull surface area: 210 lbs/sq ft or 1,026 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.40
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

👍: 0 ⏩: 3

leovictor In reply to Denodon [2011-01-30 09:07:05 +0000 UTC]

Also note that a Torpedo protection plate of 4 inches manages to double your ship's survival odds from 5 to nearly 11 torpedo hits.

You can tweak it to 3 or 3.5 inches since Underwater protection suffers from diminishing returns.
For example if you increase the protective plate 2 X doesn't mean that your ship will withstand twice as much torpedoes.

Also your main deck is a tad too thin for a modern ship that size.

If you want to protect it from Aircraft heavy bombs or long range plunging shell fire try to strive for 6 Inches deck armor (the same as the Iowa class battleships).

In fact why not bump the displacement to 45,000 tons standard and you'll have an Iowa clone.

👍: 0 ⏩: 1

Denodon In reply to leovictor [2011-01-30 09:11:31 +0000 UTC]

alright I downsized the secondary guns to 5in and reduced the ammo amounts, adjusted the belt length and deck Armour but I'm now getting composite strength of 1.12
All I've found that can lower it is by adding miscellaneous weight below decks;

R.S.N Markovich, United Socialist States of Sieran Battleship laid down 1940

Displacement:
41,135 t light; 43,851 t standard; 48,629 t normal; 52,451 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(814.52 ft / 794.00 ft) x 118.00 ft x (31.00 / 32.93 ft)
(248.27 m / 242.01 m) x 35.97 m x (9.45 / 10.04 m)

Armament:
9 - 16.00" / 406 mm 48.0 cal guns - 2,144.97lbs / 972.94kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
14 - 5.00" / 127 mm 48.0 cal guns - 65.46lbs / 29.69kg shells, 150 per gun
Dual purpose guns in deck mounts, 1940 Model
7 x Twin mounts on sides, evenly spread
4 raised mounts
20 - 4.10" / 104 mm 52.0 cal guns - 36.80lbs / 16.69kg shells, 800 per gun
Breech loading guns in deck mounts, 1940 Model
10 x Twin mounts on sides, evenly spread
6 raised mounts
20 - 1.57" / 40.0 mm 65.0 cal guns - 2.16lbs / 0.98kg shells, 2,200 per gun
Breech loading guns in deck mounts, 1940 Model
20 x Single mounts on sides, evenly spread
Weight of broadside 21,000 lbs / 9,526 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.0" / 330 mm 398.00 ft / 121.31 m 13.04 ft / 3.97 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 385.44 ft / 117.48 m 8.00 ft / 2.44 m
Main Belt covers 77 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
3.50" / 89 mm 357.30 ft / 108.91 m 29.35 ft / 8.95 m
Beam between torpedo bulkheads 110.00 ft / 33.53 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 8.70" / 221 mm 1.60" / 41 mm
2nd: 3.90" / 99 mm 1.60" / 41 mm -
3rd: 1.20" / 30 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 6.00" / 152 mm

- Conning towers: Forward 7.90" / 201 mm, Aft 5.90" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 4 shafts, 161,891 shp / 120,770 Kw = 30.28 kts
Range 8,871nm at 19.00 kts
Bunker at max displacement = 8,600 tons

Complement:
1,636 - 2,128

Cost:
£24.339 million / $97.356 million

Distribution of weights at normal displacement:
Armament: 3,616 tons, 7.4 %
- Guns: 3,616 tons, 7.4 %
Armour: 11,277 tons, 23.2 %
- Belts: 3,401 tons, 7.0 %
- Torpedo bulkhead: 1,358 tons, 2.8 %
- Armament: 1,280 tons, 2.6 %
- Armour Deck: 4,842 tons, 10.0 %
- Conning Towers: 396 tons, 0.8 %
Machinery: 4,329 tons, 8.9 %
Hull, fittings & equipment: 20,114 tons, 41.4 %
Fuel, ammunition & stores: 7,494 tons, 15.4 %
Miscellaneous weights: 1,800 tons, 3.7 %
- Hull below water: 1,800 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
77,454 lbs / 35,133 Kg = 37.8 x 16.0 " / 406 mm shells or 12.0 torpedoes
Stability (Unstable if below 1.00): 1.40
Metacentric height 11.5 ft / 3.5 m
Roll period: 14.6 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.586 / 0.595
Length to Beam Ratio: 6.73 : 1
'Natural speed' for length: 30.63 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 8.00 ft / 2.44 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 31.00 ft / 9.45 m, 25.36 ft / 7.73 m
- Forward deck: 30.00 %, 25.36 ft / 7.73 m, 21.72 ft / 6.62 m
- Aft deck: 15.00 %, 21.72 ft / 6.62 m, 21.72 ft / 6.62 m
- Quarter deck: 35.00 %, 21.72 ft / 6.62 m, 24.72 ft / 7.53 m
- Average freeboard: 23.97 ft / 7.31 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.0 %
- Above water (accommodation/working, high = better): 185.1 %
Waterplane Area: 69,334 Square feet or 6,441 Square metres
Displacement factor (Displacement / loading): 119 %
Structure weight / hull surface area: 234 lbs/sq ft or 1,143 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.08
- Longitudinal: 1.57
- Overall: 1.12
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room

👍: 0 ⏩: 2

leovictor In reply to Denodon [2011-01-30 09:48:09 +0000 UTC]

Plus an overall Hull strength of 1.12?
That's Overbuild.
Smack more armor on the hull (belt), barbettes, turrets and reduce it to 1.00.

Also when applying armor keep a close watch on your hull characteristics.
Adding armor to certain places will alter your ship's stability (Prone to capsizing) and steadiness (stable gun Platform)

make every ton of steel count in your ship.

👍: 0 ⏩: 1

Denodon In reply to leovictor [2011-01-30 09:55:35 +0000 UTC]

where does it read 1.12?
I see composite strength of 1.00, longitudinal strength of 1.35 and cross-sectional or 0.97.

The ship is supposed to have been built in Sieran with the aid of foreign engineers (primarily from Europe though this is an alt-history world)

👍: 0 ⏩: 1

leovictor In reply to Denodon [2011-01-30 10:08:02 +0000 UTC]

I think it was the 9th comment down. But don't worry it got resolved.

Now to see how Better your ship has become compare your first Sprinsharp simulation with your last:

Overall survivability and seakeeping ability

1st Simulation.

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
74,017 lbs / 33,573 Kg = 36.1 x 16.0 " / 406 mm shells or 5.1 torpedoes
Stability (Unstable if below 1.00): 1.39
Metacentric height 11.4 ft / 3.5 m
Roll period: 14.7 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.02




Last Simulation:

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
77,530 lbs / 35,167 Kg = 37.9 x 16.0 " / 406 mm shells or 12.7 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 9.7 ft / 2.9 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.05



Final verdict.
For the same displacement your ship can survive 2 extra 16 inch Shells in non critical areas,
Nearly 8 more torpedoes hits.

has an over one second longer roll period means it's a more stable gun platform.
Slightly better seaboat qualities:

Only stability has slightly declined but it's not critical.


So For the same Displacement you have a much better fighting unit.
That can Handle Aircraft bombs better with its 6 Inch Deck.

A well balanced vessel.

👍: 0 ⏩: 2

Denodon In reply to leovictor [2011-01-30 10:18:28 +0000 UTC]

thanks for that, learnt quite a bit as well as I've before only really got my armour and ammo information from books like Janes Fighting Ships and Wikipedia to get the base stats. I imagine stability could be improved if bilge keels were added but these don't appear to be a part of the program.

In this series, there was this one ship that was completed as battleship to replace the earlier battlecruisers (which it actually never did) but the second Markovich laid down was converted in the construction stage to be the fleets first aircraft carrier. The hull had already been constructed so I'm trying to find ways how to incorporate a flight deck into this ships design. I remember reading somewhere a technique to doing Aircraft Carriers in Springsharp but I can no longer remember where that was. Do you have any ideas how to go about this?

I'll update the ships info now with the refined stats

👍: 0 ⏩: 1

leovictor In reply to Denodon [2011-01-30 10:30:52 +0000 UTC]

I also tried to do that to.
But so far I don't .
A while back Windows got an internet update that made my springsharp program unworkable.

Say If you want to know about Battleship designs, Projects, strategy, history and even anatomy why not join up this Forum.

It's interesting.

[link]


...

👍: 0 ⏩: 1

Denodon In reply to leovictor [2011-01-30 10:35:43 +0000 UTC]

I use the beta v3 on this Vista laptop and it seems to work fine.
I'll have a look around that forum

👍: 0 ⏩: 0

leovictor In reply to leovictor [2011-01-30 10:13:15 +0000 UTC]

In fact from these specs.
Your ship at 43,000 tons can PWN the H-39 at 56,000 tons.
Your ship has one more gun advantage and better protection.

So what can you built with H-39 56,000 ton STD displacement?

👍: 0 ⏩: 0

leovictor In reply to Denodon [2011-01-30 09:43:32 +0000 UTC]

Your 5 Inch gun already does the Job for the 4.1 Inch gun to shoot down aircraft.
You can get rid of those 4.1 entirely.
And increase the Number of the 5 Inch guns to 18 guns or more.
Whatever weight is left you can use to increase more armor.

For Example your main gun Barbette protection is a ridiculous 1.6 Inches / 40 mm.
The Barbette is that circular structure your gun turret revolves upon.
And inside it has allot of live ammunition ready to fire.
Another Potential HMS Hood Scenario here.
Iowas Barbette thickness ranges from 11 to 17 inches in the places that's exposed to enemy fire.
The Japanese battleship Nagato had it's Barbette Armor Upgraded to just under 20 Inches in WW2.


The trick is to built a balanced Ship.

And look by reducing the amount of shells stowed inside your Magazines your Torpedo survivability odds shot from 10.8 to over 12 despite the fact that you reduced the thickness of your Torpedo protection by 1/2 Inch.

👍: 0 ⏩: 1

Denodon In reply to leovictor [2011-01-30 09:49:03 +0000 UTC]

I don't really want to change the number of secondary guns as locating positions for 14 was tricky enough and I still ended up with limited firing arcs on a few of them. Upgrading the barbette protection and changed the main belt thickness to 14 inches gives me a well-balanced ship according to the program;

R.S.N Markovich, United Socialist States of Sieran Battleship laid down 1940

Displacement:
41,135 t light; 43,851 t standard; 48,629 t normal; 52,451 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(814.52 ft / 794.00 ft) x 118.00 ft x (31.00 / 32.93 ft)
(248.27 m / 242.01 m) x 35.97 m x (9.45 / 10.04 m)

Armament:
9 - 16.00" / 406 mm 48.0 cal guns - 2,144.97lbs / 972.94kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
14 - 5.00" / 127 mm 48.0 cal guns - 65.46lbs / 29.69kg shells, 150 per gun
Dual purpose guns in deck mounts, 1940 Model
7 x Twin mounts on sides, evenly spread
4 raised mounts
20 - 4.10" / 104 mm 52.0 cal guns - 36.80lbs / 16.69kg shells, 800 per gun
Breech loading guns in deck mounts, 1940 Model
10 x Twin mounts on sides, evenly spread
6 raised mounts
20 - 1.57" / 40.0 mm 65.0 cal guns - 2.16lbs / 0.98kg shells, 2,200 per gun
Breech loading guns in deck mounts, 1940 Model
20 x Single mounts on sides, evenly spread
Weight of broadside 21,000 lbs / 9,526 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.0" / 356 mm 398.00 ft / 121.31 m 13.04 ft / 3.97 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 385.44 ft / 117.48 m 8.00 ft / 2.44 m
Main Belt covers 77 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
3.50" / 89 mm 357.30 ft / 108.91 m 29.35 ft / 8.95 m
Beam between torpedo bulkheads 110.00 ft / 33.53 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 8.70" / 221 mm 18.0" / 457 mm
2nd: 3.90" / 99 mm 1.60" / 41 mm -
3rd: 1.20" / 30 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 6.00" / 152 mm

- Conning towers: Forward 7.90" / 201 mm, Aft 5.90" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 4 shafts, 161,891 shp / 120,770 Kw = 30.28 kts
Range 8,871nm at 19.00 kts
Bunker at max displacement = 8,600 tons

Complement:
1,636 - 2,128

Cost:
£24.339 million / $97.356 million

Distribution of weights at normal displacement:
Armament: 3,616 tons, 7.4 %
- Guns: 3,616 tons, 7.4 %
Armour: 14,412 tons, 29.6 %
- Belts: 3,641 tons, 7.5 %
- Torpedo bulkhead: 1,358 tons, 2.8 %
- Armament: 4,176 tons, 8.6 %
- Armour Deck: 4,842 tons, 10.0 %
- Conning Towers: 396 tons, 0.8 %
Machinery: 4,329 tons, 8.9 %
Hull, fittings & equipment: 18,778 tons, 38.6 %
Fuel, ammunition & stores: 7,494 tons, 15.4 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
77,530 lbs / 35,167 Kg = 37.9 x 16.0 " / 406 mm shells or 12.7 torpedoes
Stability (Unstable if below 1.00): 1.25
Metacentric height 9.7 ft / 2.9 m
Roll period: 15.9 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.05

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.586 / 0.595
Length to Beam Ratio: 6.73 : 1
'Natural speed' for length: 30.63 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 8.00 ft / 2.44 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 31.00 ft / 9.45 m, 25.36 ft / 7.73 m
- Forward deck: 30.00 %, 25.36 ft / 7.73 m, 21.72 ft / 6.62 m
- Aft deck: 15.00 %, 21.72 ft / 6.62 m, 21.72 ft / 6.62 m
- Quarter deck: 35.00 %, 21.72 ft / 6.62 m, 24.72 ft / 7.53 m
- Average freeboard: 23.97 ft / 7.31 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 72.8 %
- Above water (accommodation/working, high = better): 185.1 %
Waterplane Area: 69,334 Square feet or 6,441 Square metres
Displacement factor (Displacement / loading): 115 %
Structure weight / hull surface area: 219 lbs/sq ft or 1,071 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.35
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room

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leovictor In reply to Denodon [2011-01-30 08:52:37 +0000 UTC]

Okay Now I see what's wrong.

Check this out

Armament:
9 - 16.00" / 406 mm 48.0 cal guns - 2,144.97lbs / 972.94kg shells, 350 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
14 - 5.90" / 150 mm 48.0 cal guns - 107.54lbs / 48.78kg shells, 600 per gun
Dual purpose guns in deck mounts, 1940 Model
7 x Twin mounts on sides, evenly spread
4 raised mounts
20 - 4.10" / 104 mm 52.0 cal guns - 36.80lbs / 16.69kg shells, 800 per gun
Breech loading guns in deck mounts, 1940 Model
10 x Twin mounts on sides, evenly spread
6 raised mounts
20 - 1.57" / 40.0 mm 65.0 cal guns - 2.17lbs / 0.98kg shells, 2,200 per gun
Breech loading guns in deck mounts, 1940 Model
20 x Single mounts on sides, evenly spread
Weight of broadside 21,589 lbs / 9,793 kg


The amount of shells stowed per gun inside your Ship is INSANELY TOO MUCH.
For example your ship carries a total of 350 x 9 = 3150 16 Inch shells!!!!

Not only that so is the rest of your ammunition stowage.
14 x 600 = 8400 5.9 Inch Shells!!!

That's a Floating Ammunition Depot.

Too much shells mean too big ammunition bunkers.
Too big ammunition bunkers mean you'll never solve this:

"Main Belt covers 80 % of normal length
Main belt does not fully cover magazines and engineering spaces"

Even if you stretch your main armor belt past 100%

Bigger bunker also means more armor and more weight to protect it.

Go to this site for the right stowage capacity per gun.
[link]

Taking the H-39 Battleship as source it is stated that amount of shell stowed per gun is UP TO 120 shells which is way more realistic.
Which in your ships case is 9 x 120 = 1080 shells in total.
As for the 5.9 Inch gun the number is 150 per gun.


The 5.9 Inch gun and you gonna hate me for saying this makes a lousy Dual Purpose gun.
Well lousy for shooting down aircraft.
It's too heavy to train the guns fast enough to follow an aircraft.
And if it's hand loaded those who serve those guns will grow tired fast of the heavy shell.
The only solution is making an Automatic Dual purpose 5.9 Inch gun but that has it's own problems.
Higher probability to jamming and tremendous weight.
See an example.
[link]


My Idea for a good hand operated Dual purpose caliber to deal with both light surface combatants and yet flexible enough to deal with aircraft is 5 Inches.
The shell is light enough for the gun crew to handle and load quickly and without getting tired to fast to shoot down aircraft and has just enough punching power to give destroyers a bad day.


A Dual Purpose caliber of 5 inches will do the job of both the 5.9 and 4.1 calibers.
That Saves weight.

[link]

.

Call me if you have more questions.

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Denodon In reply to leovictor [2011-01-30 09:02:15 +0000 UTC]

yeah, I've been a bit unsure as to how many shells would be suitable. I've been reading around and found that the Bismarck expended 96 shells during the Engagement with Prince of Wales and Hood and still seemed to have plenty to fire during its dying moments.

So you recommend the 5in? I'm considering those guns being primarily used to fend of destroyers that intend to attack with torpedoes and the lighter AA armament to fend off the air threat.

👍: 0 ⏩: 0

Denodon In reply to Denodon [2011-01-30 08:22:28 +0000 UTC]

wait, messed that up. Didn't notice the belt length changed;

R.S.N Markovich, United Socialist States of Sieran Battleship laid down 1940

Displacement:
38,243 t light; 43,851 t standard; 48,629 t normal; 52,451 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(814.52 ft / 794.00 ft) x 118.00 ft x (31.00 / 32.93 ft)
(248.27 m / 242.01 m) x 35.97 m x (9.45 / 10.04 m)

Armament:
9 - 16.00" / 406 mm 48.0 cal guns - 2,144.97lbs / 972.94kg shells, 350 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
3 x Triple mounts on centreline ends, majority forward
1 raised mount - superfiring
14 - 5.90" / 150 mm 48.0 cal guns - 107.54lbs / 48.78kg shells, 600 per gun
Dual purpose guns in deck mounts, 1940 Model
7 x Twin mounts on sides, evenly spread
4 raised mounts
20 - 4.10" / 104 mm 52.0 cal guns - 36.80lbs / 16.69kg shells, 800 per gun
Breech loading guns in deck mounts, 1940 Model
10 x Twin mounts on sides, evenly spread
6 raised mounts
20 - 1.57" / 40.0 mm 65.0 cal guns - 2.17lbs / 0.98kg shells, 2,200 per gun
Breech loading guns in deck mounts, 1940 Model
20 x Single mounts on sides, evenly spread
Weight of broadside 21,589 lbs / 9,793 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.0" / 330 mm 436.00 ft / 132.89 m 13.04 ft / 3.97 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 385.44 ft / 117.48 m 8.00 ft / 2.44 m
Main Belt covers 84 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
4.00" / 102 mm 357.30 ft / 108.91 m 29.35 ft / 8.95 m
Beam between torpedo bulkheads 110.00 ft / 33.53 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 8.70" / 221 mm 1.60" / 41 mm
2nd: 3.90" / 99 mm 1.60" / 41 mm -
3rd: 1.20" / 30 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 4.70" / 119 mm

- Conning towers: Forward 7.90" / 201 mm, Aft 5.90" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Electric cruising motors plus geared drives, 4 shafts, 161,891 shp / 120,770 Kw = 30.28 kts
Range 8,871nm at 19.00 kts
Bunker at max displacement = 8,600 tons

Complement:
1,636 - 2,128

Cost:
£23.908 million / $95.631 million

Distribution of weights at normal displacement:
Armament: 3,709 tons, 7.6 %
- Guns: 3,709 tons, 7.6 %
Armour: 10,656 tons, 21.9 %
- Belts: 3,623 tons, 7.5 %
- Torpedo bulkhead: 1,552 tons, 3.2 %
- Armament: 1,291 tons, 2.7 %
- Armour Deck: 3,793 tons, 7.8 %
- Conning Towers: 396 tons, 0.8 %
Machinery: 4,329 tons, 8.9 %
Hull, fittings & equipment: 17,750 tons, 36.5 %
Fuel, ammunition & stores: 10,386 tons, 21.4 %
Miscellaneous weights: 1,800 tons, 3.7 %
- Hull below water: 1,800 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
71,638 lbs / 32,495 Kg = 35.0 x 16.0 " / 406 mm shells or 10.7 torpedoes
Stability (Unstable if below 1.00): 1.45
Metacentric height 12.1 ft / 3.7 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.13

Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.586 / 0.595
Length to Beam Ratio: 6.73 : 1
'Natural speed' for length: 30.63 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 8.00 ft / 2.44 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 31.00 ft / 9.45 m, 25.36 ft / 7.73 m
- Forward deck: 30.00 %, 25.36 ft / 7.73 m, 21.72 ft / 6.62 m
- Aft deck: 15.00 %, 21.72 ft / 6.62 m, 21.72 ft / 6.62 m
- Quarter deck: 35.00 %, 21.72 ft / 6.62 m, 24.72 ft / 7.53 m
- Average freeboard: 23.97 ft / 7.31 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 84.3 %
- Above water (accommodation/working, high = better): 185.1 %
Waterplane Area: 69,334 Square feet or 6,441 Square metres
Displacement factor (Displacement / loading): 120 %
Structure weight / hull surface area: 209 lbs/sq ft or 1,019 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.39
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

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leovictor [2011-01-30 08:02:03 +0000 UTC]

So practically an up scaled O class Battlecruiser with H-39 Guns.
Beautiful design but I have a few things to add.

Uhh I count only 14 x 5.9 Inch Guns Unless you put the aft Secondary turrets side by side severely restricting the 3rd main turret to fire over its shoulder.

You might want to try dual Purpose secondary guns if this is a fictional warship.
It saves weight instead of having Secondary guns to combat light surface vessels and aircraft separately.

You might wanna add 40mm Bofors instead of 20mm for light AA.
Bofors have better stopping power.


"Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.0" / 330 mm 357.30 ft / 108.91 m 13.04 ft / 3.97 m
Ends: 8.70" / 221 mm 436.68 ft / 133.10 m 13.04 ft / 3.97 m
Upper: 8.00" / 203 mm 357.30 ft / 108.91 m 8.00 ft / 2.44 m"

8 Inch upper armor?
Aren't you overdoing it?
Your putting so much vertical armor ABOVE your main armor deck.
Your main armored Belt needs that extra material.

You might want to use an "All or Nothing" armor scheme.
For example get rid of the 8.7 Inch end hull armor... It serves no purpose except for setting off an armor piercing shell delayed fuse once it punches through it.
Sometimes having no armor at all over non vital places is also protection. The projectile can fly through that section and explode on the opposite side.
(for example the USS Savannah a Light Cruiser Survived the Fritz X Glider bomb because of thin armor while the awesome Roma battleship was blown in two by it. Roma's armor caused the Fritz X to detonate inside the ship instead of under it as in the case of USS Savannah.)



"Main Belt covers 69 % of normal length
Main belt does not fully cover magazines and engineering spaces"

Fix this FAST!
otherwise you'll risk another HMS Hood.
Get rid of that 8.7 Inch end armor and the weight you save increase the length of your main belt to cover all your ship's vital areas.

.

- Armoured deck - multiple decks:
For and Aft decks: 3.10" / 79 mm
Forecastle: 4.70" / 119 mm Quarter deck: 3.10" / 79 mm



A 3.1 Inch Quarterdeck for what?
What are you going to protect there, crew cabin, the mess hall?
There's nothing worth protecting there during combat since nobody will be there.

Forecastle deck 4.7 Inches??!!!!
Again for what?
To protect your anchor chains?
Your telling me that your BOW's deck has thicker armor than the Main Deck beneath which your ammunition is located?


Oh yeah and one last thing.
For a ship bigger than Bismarck.
It's probably best to install Anti Torpedo Bulkheads.
Your average torpedo survivability will double with just a few inches.


Fix these issues and you'll have an awesome fighting Unit.

As for the rest a pretty good looking design.


...

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Denodon In reply to leovictor [2011-01-30 08:07:16 +0000 UTC]

Thank you for the critique. I only know a little about warship design so I go by what best information I can find. I did indeed design it with the thinking that it was developed as an enlarged O class with better survivability and punch in battle. Only one of them exists as their so expensive. I'll feed the changes into springsharp and see what comes out.

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