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1

Monday, January 30th 2006, 1:04pm

Another BB concept from poland

After realising that current BB plans for polish Navy are extremely cost consuming Polish design bourd have ofered an cheaper altermative.

Using guns that are ready proven and avalable.

Avangarda, Poland Armored Cruiser laid down 1930

Displacement:
18 701 t light; 19 741 t standard; 21 331 t normal; 22 603 t full load

Dimensions: Length overall / water x beam x draught
639,26 ft / 633,20 ft x 82,02 ft (Bulges 87,93 ft) x 25,59 ft (normal load)
194,85 m / 193,00 m x 25,00 m (Bulges 26,80 m) x 7,80 m

Armament:
6 - 11,02" / 280 mm guns (3x2 guns), 669,80lbs / 303,81kg shells, 28 cm/40 (11") SK L/40
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
2 - 11,02" / 280 mm guns (1x2 guns), 669,80lbs / 303,81kg shells, 28 cm/40 (11") SK L/40
Breech loading guns in a turret (on a barbette)
on centreline, all raised guns
10 - 5,91" / 150 mm guns in single mounts, 102,98lbs / 46,71kg shells, 1930 Model
Breech loading guns in casemate mounts
on side, evenly spread
12 - 4,33" / 110 mm guns (6x2 guns), 40,61lbs / 18,42kg shells, 1930 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
24 - 1,57" / 40,0 mm guns (6x4 guns), 1,95lbs / 0,89kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 6 922 lbs / 3 140 kg
Shells per gun, main battery: 150
6 - 23,6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11,0" / 280 mm 381,89 ft / 116,40 m 10,86 ft / 3,31 m
Ends: Unarmoured
Upper: 1,18" / 30 mm 381,89 ft / 116,40 m 8,01 ft / 2,44 m
Main Belt covers 93% of normal length

- Torpedo Bulkhead and Bulges:
3,15" / 80 mm 381,89 ft / 116,40 m 23,16 ft / 7,06 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11,0" / 280 mm 5,12" / 130 mm 9,84" / 250 mm
2nd: 11,0" / 280 mm 5,12" / 130 mm 9,84" / 250 mm
3rd: 3,15" / 80 mm - -
4th: 0,79" / 20 mm 0,39" / 10 mm -
5th: 0,39" / 10 mm - -

- Armour deck: 3,94" / 100 mm, Conning tower: 10,24" / 260 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 81 258 shp / 60 619 Kw = 28,00 kts
Range 5 000nm at 18,00 kts
Bunker at max displacement = 2 862 tons

Complement:
882 - 1 147

Cost:
£7,218 million / $28,873 million

Distribution of weights at normal displacement:
Armament: 865 tons, 4,1%
Armour: 7 376 tons, 34,6%
- Belts: 2 137 tons, 10,0%
- Torpedo bulkhead: 1 031 tons, 4,8%
- Armament: 1 462 tons, 6,9%
- Armour Deck: 2 577 tons, 12,1%
- Conning Tower: 170 tons, 0,8%
Machinery: 2 462 tons, 11,5%
Hull, fittings & equipment: 7 897 tons, 37,0%
Fuel, ammunition & stores: 2 630 tons, 12,3%
Miscellaneous weights: 100 tons, 0,5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
28 037 lbs / 12 718 Kg = 41,9 x 11,0 " / 280 mm shells or 5,4 torpedoes
Stability (Unstable if below 1.00): 1,06
Metacentric height 4,2 ft / 1,3 m
Roll period: 18,0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,45
Seaboat quality (Average = 1.00): 1,02

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,524
Length to Beam Ratio: 7,20 : 1
'Natural speed' for length: 25,16 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 13,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26,25 ft / 8,00 m
- Forecastle (20%): 16,73 ft / 5,10 m
- Mid (50%): 16,73 ft / 5,10 m
- Quarterdeck (20%): 16,73 ft / 5,10 m
- Stern: 16,54 ft / 5,04 m
- Average freeboard: 17,47 ft / 5,33 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92,8%
- Above water (accommodation/working, high = better): 115,0%
Waterplane Area: 35 376 Square feet or 3 287 Square metres
Displacement factor (Displacement / loading): 110%
Structure weight / hull surface area: 155 lbs/sq ft or 756 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,98
- Longitudinal: 1,18
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Think smaller Derflinger with Vanguard style main weapons

2

Monday, January 30th 2006, 1:15pm

Hmmmm, kind of like a cross between Seydlitz (armament) and Lion (layout). Not a bad idea, going with something a bit less spendy than a full-size battleship.

Comments: Germany would suggest going with turbines for propulsion, or a mixed turbine/diesel plant (probably 3 shafts, then), the diesel-powered CL Liepzig is proving prone to vibration at higher speeds. Casemates are ... well, less than ideal, you might consider replacing the 10 150s in casemates with 8 in turrets, shaving a little bit off that torpedo bulkhead or the upper belt to do so. The torpedos.... eh, on a ship of this type, you may not want them, as they're an explosion risk if hit by enemy fire.

3

Monday, January 30th 2006, 1:33pm

Somewhat underpowered in the main weaponry department, but still a solid boat. Not something you want following you into a dark fjord in the Baltic, that's for sure.

4

Monday, January 30th 2006, 1:37pm

Depends on the range, and right now the Baltic is the domain of older ships, unless the Nords bring in their new BBs. So the armament's not that far from the norm (11" vs 12").

5

Monday, January 30th 2006, 1:59pm

looks good

Her shallow draft is a good point, given the abundance of underwater threats the Baltic will pose.

6

Monday, January 30th 2006, 2:29pm

the problem is that I can only bild one.
I only have 4 turrents.
I plan to use her with heavy ecsorts of Conrads and Peggy Brown's
My doctrin is heavy on night torpedo tactics i bild ships with high ROF setling on smaller but numerus guns on my CL, this ship will add the element of brake trou force.
The other problem is that this ship is not elastic if it encouters a BC or a fast BB it will die quickly.

An alterd design

Avangarda, Poland Armored Cruiser laid down 1930

Displacement:
18 086 t light; 19 110 t standard; 20 541 t normal; 21 686 t full load

Dimensions: Length overall / water x beam x draught
642,54 ft / 636,48 ft x 82,02 ft (Bulges 87,93 ft) x 25,59 ft (normal load)
195,85 m / 194,00 m x 25,00 m (Bulges 26,80 m) x 7,80 m

Armament:
6 - 11,02" / 280 mm guns (3x2 guns), 669,80lbs / 303,82kg shells, 1905 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
2 - 11,02" / 280 mm guns (1x2 guns), 669,80lbs / 303,82kg shells, 1905 Model
Breech loading guns in a turret (on a barbette)
on centreline
10 - 5,91" / 150 mm guns in single mounts, 102,98lbs / 46,71kg shells, 1930 Model
Breech loading guns in casemate mounts
on side, evenly spread
12 - 4,33" / 110 mm guns (6x2 guns), 40,61lbs / 18,42kg shells, 1930 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
24 - 1,57" / 40,0 mm guns (6x4 guns), 1,95lbs / 0,88kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 6 922 lbs / 3 140 kg
Shells per gun, main battery: 150
6 - 23,6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11,0" / 280 mm 381,89 ft / 116,40 m 10,86 ft / 3,31 m
Ends: Unarmoured
Upper: 1,77" / 45 mm 165,35 ft / 50,40 m 8,01 ft / 2,44 m
Main Belt covers 92% of normal length

- Torpedo Bulkhead and Bulges:
3,15" / 80 mm 381,89 ft / 116,40 m 23,16 ft / 7,06 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11,0" / 280 mm 5,12" / 130 mm 9,84" / 250 mm
2nd: 11,0" / 280 mm 5,12" / 130 mm 9,84" / 250 mm
3rd: 3,15" / 80 mm - -
4th: 0,79" / 20 mm 0,39" / 10 mm -
5th: 0,39" / 10 mm - -

- Armour deck: 3,94" / 100 mm, Conning tower: 10,24" / 260 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 67 320 shp / 50 221 Kw = 28,00 kts
Range 5 000nm at 18,00 kts
Bunker at max displacement = 2 575 tons

Complement:
857 - 1 115

Cost:
£6,881 million / $27,524 million

Distribution of weights at normal displacement:
Armament: 865 tons, 4,2%
Armour: 7 348 tons, 35,8%
- Belts: 2 105 tons, 10,2%
- Torpedo bulkhead: 1 031 tons, 5,0%
- Armament: 1 407 tons, 6,9%
- Armour Deck: 2 639 tons, 12,8%
- Conning Tower: 165 tons, 0,8%
Machinery: 2 040 tons, 9,9%
Hull, fittings & equipment: 7 733 tons, 37,6%
Fuel, ammunition & stores: 2 455 tons, 12,0%
Miscellaneous weights: 100 tons, 0,5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
29 868 lbs / 13 548 Kg = 44,6 x 11,0 " / 280 mm shells or 5,9 torpedoes
Stability (Unstable if below 1.00): 1,09
Metacentric height 4,4 ft / 1,3 m
Roll period: 17,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,42
Seaboat quality (Average = 1.00): 1,02

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0,502
Length to Beam Ratio: 7,24 : 1
'Natural speed' for length: 29,57 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 13,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26,25 ft / 8,00 m
- Forecastle (20%): 16,73 ft / 5,10 m
- Mid (50%): 16,73 ft / 5,10 m
- Quarterdeck (20%): 12,14 ft / 3,70 m (16,73 ft / 5,10 m before break)
- Stern: 12,14 ft / 3,70 m
- Average freeboard: 16,57 ft / 5,05 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87,5%
- Above water (accommodation/working, high = better): 121,3%
Waterplane Area: 36 239 Square feet or 3 367 Square metres
Displacement factor (Displacement / loading): 111%
Structure weight / hull surface area: 153 lbs/sq ft or 748 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,98
- Longitudinal: 1,18
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Deck armor 20mm decaping plate plus 80mm main plate

7

Monday, January 30th 2006, 2:56pm

I understand the desire to minimize cost, but those pre-dreadnought turrets will be at least a quarter-century old by the time they're installed on this ship. I think you'd be better off just buying some new weapons.

If the expectation is that this ship's going to be clobbered by any BB/BC it encounters, I think you should reduce the armor suite and increase the speed.

HoOmAn

Keeper of the Sacred Block Coefficient

  • Send private message

8

Monday, January 30th 2006, 3:07pm

Marek,

could you provide some background why Poland thinks this is the right ship for their navy? What´s the scenario she´s planned for?

In general she seems to be an outdated and obsolete design.

9

Monday, January 30th 2006, 6:09pm

Agree that the 283mm guns would likely be a bit old...would make fine monitors, or coastal artillery, though.

10

Monday, January 30th 2006, 6:35pm

BTW...

...your Czech neighbours at Skoda have a 305/55 that would be good for Baltic work. ;)

11

Monday, January 30th 2006, 9:55pm

Quoted

Originally posted by HoOmAn
Marek,

could you provide some background why Poland thinks this is the right ship for their navy? What´s the scenario she´s planned for?

In general she seems to be an outdated and obsolete design.

IC: THAT INFORMATION IS TOP SECRET

OOC:
Doctrine No. 1
I realized that althou my CL have TT bourdside that will blow Yamato out of water I nead a ship that will divert enemy fire from my cruisers, with(cruisers) cannot hope to survive an attack on a Battleline.My BB(what ever it may be) will act as a target for the big guns acting as a diversion from the main attack that are the cruisers and big torpedo bouts.
So a ship modern fast battleship armed with 380mm cannons.The kind that im try to bild
Or a smaller ship like the one in this post.

Docrine No. 2
A slow heavy armoured and armed BB.
It job is to protect the coust but still be able to wreak havoc on any enemy BB.
A defence only vessel.


PS:Just becose something is cheaper dosent mean that it will be bild.Poland dosnt have a congres poland has a dictator so big bad phallic compensator(30000t 8x380mm 28kt)is still in the making

12

Monday, January 30th 2006, 10:42pm

Anther crappy pic.


The picture was rescaled by the photobucket but you dont miss much it had preaty low detail.

13

Monday, January 30th 2006, 11:51pm

There is of course always this as a possibility. ;-)

Doug Wise

Unregistered

14

Tuesday, January 31st 2006, 3:19am

Just an opinion, but I would think that some coastal BBs like the Swedes had in our world might be more useful in the Baltic than a full fledged battleship, with an armament of six 10 to 12" guns and a modest turn of speed, 21-24 knots or so.

15

Tuesday, January 31st 2006, 10:16am

Quoted

Originally posted by fenkmaster
Just an opinion, but I would think that some coastal BBs like the Swedes had in our world might be more useful in the Baltic than a full fledged battleship, with an armament of six 10 to 12" guns and a modest turn of speed, 21-24 knots or so.

Historycly Poland tryed to buy a BC or a cruiser killer but the war had prevented it.
But I dont fallow history ^^

Members of this bourd know that im trying to bild some form of a BB.
I already design a few ship like 20-25000t 21-23kt 6-8 380mm.Small defencive BB
20000t 28kt 8x280mm. Small BC and a real BB 35000t 28kt 8x380mm.
All my design have heavy armour the speed is never high the weapons are 280mm or 380mm.Right now I still dont know what the final product will look like but i know it will have lots of armour.

16

Wednesday, February 1st 2006, 2:22pm

Something to keep in mind about the Swedish coastal battleships: for their time, they were fairly fast. They just lasted longer than many of their contemporaries.

17

Wednesday, February 1st 2006, 9:30pm

There is always this

Avangarda, Poland (Nordmark Built) Baltic BB laid down 1930

Displacement:
18,596 t light; 19,636 t standard; 21,000 t normal; 22,091 t full load

Dimensions: Length overall / water x beam x draught
638.04 ft / 630.00 ft x 82.00 ft x 25.00 ft (normal load)
194.47 m / 192.02 m x 24.99 m x 7.62 m

Armament:
8 - 11.02" / 280 mm guns (4x2 guns), 669.80lbs / 303.81kg shells, 1930 Model
Breech loading guns in turrets (on barbettes)
on centreline, evenly spread, 1 raised mount
Aft Main mounts separated by engine room
10 - 5.90" / 150 mm guns in single mounts, 102.69lbs / 46.58kg shells, 1930 Model
Breech loading guns in casemate mounts
on side, all amidships
10 guns in hull casemates - Limited use in heavy seas
16 - 4.33" / 110 mm guns (8x2 guns), 40.61lbs / 18.42kg shells, 1930 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, 4 raised mounts
24 - 1.46" / 37.0 mm guns (6x4 guns), 1.55lbs / 0.70kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
24 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 12 raised mounts
Weight of broadside 7,078 lbs / 3,211 kg
Shells per gun, main battery: 150
6 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 365.00 ft / 111.25 m 11.00 ft / 3.35 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 200.00 ft / 60.96 m 8.00 ft / 2.44 m
Main Belt covers 89 % of normal length

- Torpedo Bulkhead:
3.00" / 76 mm 365.00 ft / 111.25 m 24.00 ft / 7.32 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 279 mm 6.00" / 152 mm 10.0" / 254 mm
2nd: 5.00" / 127 mm 2.00" / 51 mm 2.00" / 51 mm
3rd: 4.00" / 102 mm 1.00" / 25 mm 1.00" / 25 mm
4th: 1.00" / 25 mm - -
5th: 1.00" / 25 mm - -

- Armour deck: 4.00" / 102 mm, Conning tower: 10.00" / 254 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 70,524 shp / 52,611 Kw = 28.00 kts
Range 7,000nm at 15.00 kts
Bunker at max displacement = 2,455 tons

Complement:
871 - 1,133

Cost:
£7.081 million / $28.324 million

Distribution of weights at normal displacement:
Armament: 885 tons, 4.2 %
Armour: 7,908 tons, 37.7 %
- Belts: 2,274 tons, 10.8 %
- Torpedo bulkhead: 972 tons, 4.6 %
- Armament: 1,668 tons, 7.9 %
- Armour Deck: 2,829 tons, 13.5 %
- Conning Tower: 164 tons, 0.8 %
Machinery: 2,137 tons, 10.2 %
Hull, fittings & equipment: 7,567 tons, 36.0 %
Fuel, ammunition & stores: 2,404 tons, 11.4 %
Miscellaneous weights: 100 tons, 0.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
32,769 lbs / 14,864 Kg = 48.9 x 11.0 " / 280 mm shells or 5.7 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 5.0 ft / 1.5 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.10

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.569
Length to Beam Ratio: 7.68 : 1
'Natural speed' for length: 29.03 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (20 %): 24.00 ft / 7.32 m
- Mid (50 %): 16.00 ft / 4.88 m
- Quarterdeck (20 %): 16.00 ft / 4.88 m
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 19.28 ft / 5.88 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.5 %
- Above water (accommodation/working, high = better): 135.2 %
Waterplane Area: 38,229 Square feet or 3,552 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 143 lbs/sq ft or 697 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.25
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

18

Wednesday, February 1st 2006, 9:52pm

True. Not a bad design at all, though the casemate mounts look a bit out of place on a 1930 design.

Another alternative would be the Rio de Janerio design that HDW came up with for the Brazillian non-competition. But that design is a fair amount more expensive than Avangarda is, and has a smaller stick than the Akbar that Poland is looking at.

19

Thursday, February 2nd 2006, 12:15am

Quoted

and has a smaller stick than the Akbar that Poland is looking at.


"Speak softly, and carry a beagle."

20

Thursday, February 2nd 2006, 2:02am

Food for thought - a small battleship. Not particularly fast, but it'll fit into a class two drydock.

PBC, laid down 1930

Length, 170.0 m x Beam, 30.0 m x Depth, 8.0 m
24270 tonnes normal displacement (22717 tonnes standard)

Main battery: 8 x 35.0-cm (2 x 4)
Secondary battery: 12 x 12.0-cm
AA battery: 16 x 4.0-cm
Light battery: 16 x 2.0-cm

Weight of broadside: 5061 kg

Main belt, 35.0 cm; bow and stern, 5.0 cm
Torpedo bulkhead, 5.0 cm
Armor deck, average 12.0 cm
Conning tower, 35.0 cm

Battery armor:
Main, 35.0 cm / secondary, 3.0 cm shields
AA, 2.0 cm shields / light guns, 2.0 cm shields

Maximum speed for 40014 shaft kw = 24.04 knots
Approximate cruising radius, 11500 nm / 12 knots

Typical complement: 972-1264


Estimated cost, $35.832 million (£8.958 million)

Remarks:

Relative extent of belt armor, 85 percent of 'typical' coverage.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 1392 tonnes = 6 pct
Armor, total ..................... 8630 tonnes = 36 pct

Belt 2369 tonnes = 10 pct
Torpedo bulkhead 693 tonnes = 3 pct
Deck 3368 tonnes = 14 pct
C.T. 250 tonnes = 1 pct
Armament 1951 tonnes = 8 pct

Machinery ........................ 1625 tonnes = 7 pct
Hull and fittings; equipment ..... 9557 tonnes = 39 pct
Fuel, ammunition, stores ......... 2966 tonnes = 12 pct
Miscellaneous weights ............ 100 tonnes = 0 pct
-----
24270 tonnes = 100 pct

Estimated metacentric height, 1.9 m

Displacement summary:

Light ship: 21304 tonnes
Standard displacement: 22717 tonnes
Normal service: 24270 tonnes
Full load: 25415 tonnes

Loading submergence 3611 tonnes/metre

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.12

Shellfire needed to sink: 13150 kg = 22.1 x 35.0-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 4.8
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 70 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.51

Relative quality as a seaboat: 1.16

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.59
Sharpness coefficient: 0.43
Hull speed coefficient 'M' = 5.89
'Natural speed' for length = 23.6 knots
Power going to wave formation
at top speed: 53 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 84 percent

Relative accommodation and working space: 149 percent


Displacement factor: 106 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 0.94
(Structure weight per square
metre of hull surface: 891 kg)

Relative longitudinal hull strength: 1.82
(for 6.00 m average freeboard;
freeboard adjustment +0.49 m)

Relative composite hull strength: 1.00

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

557.60 x 98.40 x 26.24; 19.68 -- Dimensions
0.59 -- Block coefficient
1930 -- Year laid down
24.04 / 11500 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
100 tons -- Miscellaneous weights
++++++++++
8 x 13.78; 2; 0 -- Main battery; turrets; superfiring
:
12 x 4.72; 0 -- Secondary battery; turrets
Gun-shields
:
16 x 1.57 -- Tertiary (QF/AA) battery
Gun-shields
:
16 x 0.79 -- Fourth (light) battery
0 -- No torpedo armament
++++++++++
13.78 / 1.97 / 0.00 / 1.97; 85 -- Belt armor; relative extent
4.72 / 13.78 -- Deck / CT
13.78 / 1.18 / 0.79 / 0.79 -- Battery armor


(Note: For portability, values are stored in Anglo-American units)


+++++++++++++++++++++++++++++++++++++++++++++++++++++++