firanjian refits ect

Started by sgdn, May 22, 2009, 04:44:40 PM

Previous topic - Next topic

P3D

There were several PDNs kept after WNT, but were scrapped save Schlesien and Schleswig-Holstein (which underwent limited refits between the wars). France did not have money to refurbish even dreadnoughts, and the Italian ones were obsolete.

The USN was considering to rebuild ACRs in the late '20 but was deemed to not worth it. I don't remember if turbine conversion was considered or not. Friedman IIRC has one or two paragraphs on it.
The first purpose of a warship is to remain afloat. Anon.
Below 40 degrees, there is no law. Below 50 degrees, there is no God. sailor's maxim on weather in the Southern seas

Guinness

From Friedman's U.S. Cruisers (p. 60 and 61):

On the subject of heavily modernizing the "eight big" armored cruisers:
Quote
In May 1922 C&R studied a conversion to increase the speed of the ships to 25 or perhaps 27 knots "without excessive expenditures of power or without taking a prohibitive amount of water aboard due to freeboard."
Quote
This study continued into 1923, a March memo of that year discussing conversion to oil burning and possible torpedo protection and armament improvements, such as the installation of triple 8-in/55 turrets.

The modernization idea came up again in 1928:

Quote
Modernization would entail the installation of new 8-in/55 guns, antiaircraft battery, fire controls, oil-fired boilers, and torpedo protection bulkheads.*
Quote
...despite the 1922 study, War Plans claimed that any significant increases in speed would be extremely expensive, as "the underwater lines of these ships do not lend themselves to such increases."

It seems that more speed in a modernized ship was more than possible:
Quote
Detailed studies by C&R showed that 58,000 SHP power plant, similar to that planned to the new carrier Ranger, could be installed without disturbing existing shaft lines for a speed of about 26 knots.

Before eventually segueing into a discussion of US battlecruiser designs though, Friedman also notes this:

Quote
The fundamental issue was political: War Plans feared that agitation for such reconstruction would upset navy plans for cruiser construction. "The mere fact of their superior tonnage would, in the public esteem, make them count as vessels comparable [to] the modern cruiser..."

He also notes that fifteen treaty cruisers had been authorized partially on the argument that they would replace the 8 older armored cruisers, and the argument went that the Navy department would then be acting in bad faith to modernize rather than retire the old ones.

So to me, Friedman seems to support (at least somewhat) my argument that such modernizations were possible, but that factors not entirely technical had more bearing in the decision not to undertake them, at least within the USN.

* Interesting idea on just short of 73 feet of beam, I think.

P3D

I did not remember the reasons correctly, then (I should really open the boxes my books are in).

A TDS would have required bulging and even larger powerplant.
IMHO 25-26kts is a bit slow for WWII, but the USN could have definitely used them in the Pacific after the pre-war cruiser fleet was decimated.
The first purpose of a warship is to remain afloat. Anon.
Below 40 degrees, there is no law. Below 50 degrees, there is no God. sailor's maxim on weather in the Southern seas

Guinness

#18
There's no mention of bulges, and the line illustration of Seattle post refit that appears on page 60 doesn't seem to show any (but that could be only because it shows internal arrangement). I believe that given the arrangement of boiler spaces in that illustration (tightly spaced amidships), it may be that they believed they could cram a torpedo bulkhead in there, possibly because of all the space freed up from the old coal bunkers. Another fun fact of that illustration is it clearly shows a catapult on the quarterdeck.

25ish knots would have been slow for first line service by WW2, but then again those doing the designing in the late 20s didn't know that yet. I suspect that they were more concerned with useful ships should another war come much sooner. At any rate, while they wouldn't have been much use in the Pacific, I think a 25 or 26 knot ship with 6x8"L55's could have been a lot of use in the North Atlantic and Mediterranean.


P3D

The USN did not have heavy cruisers to spare on the Atlantic much.

Of the 19 heavy cruisers the USN had, 13 was damaged or sunk by early 43, and Baltimore was commissioned only spring 1943.
So they'd been used in the PTO a lot, perhaps freeing up the two CAs deployed in the Torch landings if they survived.
The first purpose of a warship is to remain afloat. Anon.
Below 40 degrees, there is no law. Below 50 degrees, there is no God. sailor's maxim on weather in the Southern seas

sgdn

Version 5 Justice heavy escort  wip

Justice , firanji ccs laid down 1902 (Engine 1916)

Displacement:
   12,810 t light; 13,336 t standard; 15,011 t normal; 16,352 t full load

Dimensions: Length overall / water x beam x draught
   479.99 ft / 479.99 ft x 70.01 ft x 24.02 ft (normal load)
   146.30 m / 146.30 m x 21.34 m  x 7.32 m

Armament:
      4 - 11.81" / 300 mm guns (2x2 guns), 823.82lbs / 373.68kg shells, 1902 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      24 - 5.51" / 140 mm guns in single mounts, 83.72lbs / 37.97kg shells, 1902 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
      8 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1916 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      6 - 0.30" / 7.6 mm guns in single mounts, 0.01lbs / 0.00kg shells, 1902 Model
     Machine guns in deck mounts
     on centreline, evenly spread
   Weight of broadside 5,408 lbs / 2,453 kg
   Shells per gun, main battery: 70

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.84" / 250 mm   364.99 ft / 111.25 m   8.01 ft / 2.44 m
   Ends:   7.01" / 178 mm   114.99 ft / 35.05 m   8.01 ft / 2.44 m
   Upper:   5.00" / 127 mm   314.99 ft / 96.01 m   8.01 ft / 2.44 m
     Main Belt covers 117 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.02" / 229 mm   7.01" / 178 mm      7.01" / 178 mm
   2nd:   5.00" / 127 mm         -               -

   - Armour deck: 2.99" / 76 mm, Conning tower: 9.02" / 229 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 3 shafts, 35,047 ihp / 26,145 Kw = 23.00 kts
   Range 8,000nm at 12.00 kts
   Bunker at max displacement = 3,016 tons (100% coal)

Complement:
   677 - 881

Cost:
   £1.337 million / $5.347 million

Distribution of weights at normal displacement:
   Armament: 676 tons, 4.5 %
   Armour: 4,472 tons, 29.8 %
      - Belts: 1,999 tons, 13.3 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 929 tons, 6.2 %
      - Armour Deck: 1,426 tons, 9.5 %
      - Conning Tower: 118 tons, 0.8 %
   Machinery: 2,291 tons, 15.3 %
   Hull, fittings & equipment: 4,871 tons, 32.4 %
   Fuel, ammunition & stores: 2,201 tons, 14.7 %
   Miscellaneous weights: 500 tons, 3.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15,715 lbs / 7,128 Kg = 19.1 x 11.8 " / 300 mm shells or 2.0 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 3.5 ft / 1.1 m
   Roll period: 15.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.51
   Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.651
   Length to Beam Ratio: 6.86 : 1
   'Natural speed' for length: 21.91 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      18.04 ft / 5.50 m
      - Forecastle (20 %):   14.99 ft / 4.57 m
      - Mid (50 %):      14.99 ft / 4.57 m
      - Quarterdeck (15 %):   14.99 ft / 4.57 m
      - Stern:      18.04 ft / 5.50 m
      - Average freeboard:   15.47 ft / 4.71 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 86.6 %
      - Above water (accommodation/working, high = better): 108.7 %
   Waterplane Area: 25,767 Square feet or 2,394 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 133 lbs/sq ft or 649 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1.07
      - Longitudinal: 1.61
      - Overall: 1.11
   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



   500
fire con   250
secfire con   100
radar   25
radio   25
flag stuff   25
paravanes   25
extra 140mm & 75mm ammo equiverlent 36 rounds    50

   $   tonage   bp   
   13.151   13151   13.151   
refubishment   2.6302         
remove guns   -0.0009   -6   -0.0009   x4 75mm
add guns   0.322   161   0.161   
scrap/surpless magazines   -0.00045   -3      
add magazines   0.03   60      
scrap engine   -0.6141   -4094   -0.6141   
add engine   4.734   2367   2.367   
add Miscellaneous weight   0.45   450   0.45   
add amour   0.292   292   0.292   
change bunkrage coal to oil   0.689   1378   1.378   
cost   8.53175      4.033   
The cost is about the same as 4 new dd,s or just short of a tel class cl

p.s. how do I canculat the cost of adding bulges? Is it displacement change or some



Guinness

Quote from: sgdn on May 26, 2009, 09:14:53 PM
p.s. how do I canculat the cost of adding bulges? Is it displacement change or some

Bulges would be covered by this clause:

Quote
Hull, fittings & equipment

The bow may be lengthened by up to 5% of overall length.  A new section may be added amidships, up to 5% of overall length. 

BP cost = double the change in overall light displacement; $ cost is equal to BP.

So yes, it's based on the difference in displacement.

The Rock Doctor

Technical issues aside, I'm not sure about the end product.  I've had similar views about other "heavy escort" kinds of ships:

-In terms of fighting other capital ships, she's still a pre-dreadnought with four smallish main guns and quite limited vertical armor.  A modern armored cruiser on similar tonnage can probably mission-kill her through hits on the unarmored spaces; a modern battlecruiser will kill her outright.

-In terms of fighting light cruisers, the casemate battery does offer effective firepower, but speed is lacking to chase (or evade) the enemy.

-In terms of fighting destroyers and torpedo-boats, the secondary battery is formidable, but a light cruiser is no more expensive and certainly less vulnerable to torpedo attack.

On the whole, if you do want to re-use something, my suggestion would be to scrap both units, and recycle their main battery into a single armored cruiser.  Scrap value of the two ships would total ~3-4 BP, plus you're not spending the ~8 BP to rebuild these two ships, plus you're saving ~2.5 BP by re-using the main battery.  Pretty much the cost of a Yavuz-type ship right there.

miketr

I like the Yavuz AC the Ottomans have.

sgdn

version 1 of the rip to peces and buld new [wich probably works better]

Enter ship name, Enter country Enter ship type laid down 1916

Displacement:
   15,197 t light; 15,994 t standard; 17,046 t normal; 17,887 t full load

Dimensions: Length overall / water x beam x draught
   557.74 ft / 557.74 ft x 82.02 ft x 24.61 ft (normal load)
   170.00 m / 170.00 m x 25.00 m  x 7.50 m

Armament:
      4 - 11.81" / 300 mm guns (2x2 guns), 823.82lbs / 373.68kg shells, 1916 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      4 - 11.81" / 300 mm guns (2x2 guns), 823.82lbs / 373.68kg shells, 1916 Model
     Breech loading guns in turrets (on barbettes)
     on side, all forward
      12 - 5.51" / 140 mm guns in single mounts, 83.72lbs / 37.98kg shells, 1916 Model
     Breech loading guns in deck mounts with hoists
     on side, evenly spread
     12 guns in hull casemates - Limited use in heavy seas
      8 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1916 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 7,698 lbs / 3,492 kg
   Shells per gun, main battery: 100
   4 - 17.7" / 450 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.84" / 250 mm   459.32 ft / 140.00 m   14.76 ft / 4.50 m
   Ends:   Unarmoured
     Main Belt covers 127 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.84" / 250 mm   5.91" / 150 mm      7.87" / 200 mm
   2nd:   9.84" / 250 mm   5.91" / 150 mm      7.87" / 200 mm
   3rd:   4.92" / 125 mm   0.98" / 25 mm      2.95" / 75 mm
   4th:   0.98" / 25 mm         -               -

   - Armour deck: 1.97" / 50 mm, Conning tower: 9.84" / 250 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 47,743 shp / 35,616 Kw = 25.00 kts
   Range 7,500nm at 12.00 kts
   Bunker at max displacement = 1,894 tons

Complement:
   745 - 969

Cost:
   £2.601 million / $10.402 million

Distribution of weights at normal displacement:
   Armament: 962 tons, 5.6 %
   Armour: 5,331 tons, 31.3 %
      - Belts: 2,742 tons, 16.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1,307 tons, 7.7 %
      - Armour Deck: 1,141 tons, 6.7 %
      - Conning Tower: 140 tons, 0.8 %
   Machinery: 1,779 tons, 10.4 %
   Hull, fittings & equipment: 6,725 tons, 39.5 %
   Fuel, ammunition & stores: 1,848 tons, 10.8 %
   Miscellaneous weights: 400 tons, 2.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     20,230 lbs / 9,176 Kg = 24.6 x 11.8 " / 300 mm shells or 2.6 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 4.4 ft / 1.3 m
   Roll period: 16.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.57
   Seaboat quality  (Average = 1.00): 1.18

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.530
   Length to Beam Ratio: 6.80 : 1
   'Natural speed' for length: 23.62 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      19.69 ft / 6.00 m
      - Forecastle (20 %):   19.69 ft / 6.00 m (16.40 ft / 5.00 m aft of break)
      - Mid (50 %):      16.40 ft / 5.00 m
      - Quarterdeck (15 %):   16.40 ft / 5.00 m
      - Stern:      16.40 ft / 5.00 m
      - Average freeboard:   17.06 ft / 5.20 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 81.7 %
      - Above water (accommodation/working, high = better): 131.4 %
   Waterplane Area: 31,335 Square feet or 2,911 Square metres
   Displacement factor (Displacement / loading): 100 %
   Structure weight / hull surface area: 154 lbs/sq ft or 751 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.56
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform



well? any good

P3D

Either too slow or too fast.

If your turret armor is not kept as is (9"/7") you'd have to pay for it completely.
Then decide, if you want
a/ a fast battlecruiser (cruiser killer with 6-10" armor)
b/ a fast battleship with 12-13" armor and able to keep up with cruisers
b/ a battleship for the battleline
The first purpose of a warship is to remain afloat. Anon.
Below 40 degrees, there is no law. Below 50 degrees, there is no God. sailor's maxim on weather in the Southern seas

Jefgte

IMO,

Your BBs in service are 21kts so, a speed of 21 kts is enough to have an coherent squadron.

With just 21kts, you could increase armament &/or protection

Like Peru; speed cost BPs


;)
"You French are fighting for money, while we English are fighting for honor!"
"Everyone is fighting for what they miss. "
Surcouf

sgdn

right how about some thing round

Enter ship name, Enter country Enter ship type laid down 1916

Displacement:
   14,533 t light; 15,475 t standard; 17,460 t normal; 19,049 t full load

Dimensions: Length overall / water x beam x draught
   229.66 ft / 229.66 ft x 229.66 ft x 21.26 ft (normal load)
   70.00 m / 70.00 m x 70.00 m  x 6.48 m

Armament:
      8 - 11.81" / 300 mm guns (4x2 guns), 823.82lbs / 373.68kg shells, 1916 Model
     Breech loading guns in turrets (on barbettes)
     on side ends, evenly spread, all raised mounts - superfiring
      16 - 5.51" / 140 mm guns in single mounts, 83.72lbs / 37.97kg shells, 1916 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
     8 guns in hull casemates - Limited use in heavy seas
      8 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1916 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 8,213 lbs / 3,725 kg
   Shells per gun, main battery: 125
   6 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   24.8" / 629 mm   229.66 ft / 70.00 m   16.40 ft / 5.00 m
   Ends:   9.29" / 236 mm   229.66 ft / 70.00 m   3.28 ft / 1.00 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.02" / 229 mm   7.01" / 178 mm      7.01" / 178 mm
   2nd:   3.94" / 100 mm   1.97" / 50 mm      2.95" / 75 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 5,225 shp / 3,898 Kw = 12.00 kts
   Range 10,000nm at 12.00 kts
   Bunker at max displacement = 3,575 tons

Complement:
   759 - 987

Cost:
   £2.288 million / $9.152 million

Distribution of weights at normal displacement:
   Armament: 1,027 tons, 5.9 %
   Armour: 5,230 tons, 30.0 %
      - Belts: 3,711 tons, 21.3 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1,519 tons, 8.7 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 195 tons, 1.1 %
   Hull, fittings & equipment: 7,582 tons, 43.4 %
   Fuel, ammunition & stores: 2,927 tons, 16.8 %
   Miscellaneous weights: 500 tons, 2.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     43,647 lbs / 19,798 Kg = 53.0 x 11.8 " / 300 mm shells or 10.5 torpedoes
   Stability (Unstable if below 1.00): 1.75
   Metacentric height 43.6 ft / 13.3 m
   Roll period: 14.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.545
   Length to Beam Ratio: 1.00 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      16.40 ft / 5.00 m
      - Forecastle (20 %):   16.40 ft / 5.00 m
      - Mid (50 %):      16.40 ft / 5.00 m
      - Quarterdeck (15 %):   16.40 ft / 5.00 m
      - Stern:      16.40 ft / 5.00 m
      - Average freeboard:   16.40 ft / 5.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 52.4 %
      - Above water (accommodation/working, high = better): 142.1 %
   Waterplane Area: 36,637 Square feet or 3,404 Square metres
   Displacement factor (Displacement / loading): 122 %
   Structure weight / hull surface area: 209 lbs/sq ft or 1,021 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.79
      - Longitudinal: 7.96
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Warning: Armour belts longer than ship



i was thinking that this would be some thing to brodcast over the radio or speakers in battle  ;D ;D
http://www.youtube.com/watch?v=PAcnDevkTnc

Guinness

I think there are two problems with your armor scheme: 1. That there's new deck armor at all. 2. You have equal amounts of main belt and end belt armor. Maybe the end belt was supposed to be upper belt?

sgdn

doh 

well what about the music?

Enter ship name, Enter country Enter ship type laid down 1916

Displacement:
   15,181 t light; 16,136 t standard; 18,161 t normal; 19,781 t full load

Dimensions: Length overall / water x beam x draught
   229.66 ft / 229.66 ft x 229.66 ft x 22.11 ft (normal load)
   70.00 m / 70.00 m x 70.00 m  x 6.74 m

Armament:
      8 - 11.81" / 300 mm guns (4x2 guns), 823.82lbs / 373.68kg shells, 1916 Model
     Breech loading guns in turrets (on barbettes)
     on side ends, evenly spread, all raised mounts - superfiring
      16 - 5.51" / 140 mm guns in single mounts, 83.72lbs / 37.97kg shells, 1916 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
     8 guns in hull casemates - Limited use in heavy seas
      8 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1916 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 8,213 lbs / 3,725 kg
   Shells per gun, main battery: 125
   6 - 18.0" / 457.2 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   18.6" / 471 mm   229.66 ft / 70.00 m   16.40 ft / 5.00 m
   Ends:   Unarmoured
   Upper:   7.73" / 196 mm   229.66 ft / 70.00 m   3.28 ft / 1.00 m
     Main Belt covers 154 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.8" / 300 mm   4.92" / 125 mm      7.87" / 200 mm
   2nd:   3.94" / 100 mm   1.97" / 50 mm      2.95" / 75 mm

   - Armour deck: 1.97" / 50 mm, Conning tower: 10.83" / 275 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 5,323 shp / 3,971 Kw = 12.00 kts
   Range 10,000nm at 12.00 kts
   Bunker at max displacement = 3,646 tons

Complement:
   781 - 1,016

Cost:
   £2.326 million / $9.304 million

Distribution of weights at normal displacement:
   Armament: 1,027 tons, 5.7 %
   Armour: 5,858 tons, 32.3 %
      - Belts: 2,803 tons, 15.4 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 1,560 tons, 8.6 %
      - Armour Deck: 1,334 tons, 7.3 %
      - Conning Tower: 161 tons, 0.9 %
   Machinery: 198 tons, 1.1 %
   Hull, fittings & equipment: 7,597 tons, 41.8 %
   Fuel, ammunition & stores: 2,980 tons, 16.4 %
   Miscellaneous weights: 500 tons, 2.8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     45,950 lbs / 20,842 Kg = 55.8 x 11.8 " / 300 mm shells or 10.9 torpedoes
   Stability (Unstable if below 1.00): 1.74
   Metacentric height 43.0 ft / 13.1 m
   Roll period: 14.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 1.25

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.545
   Length to Beam Ratio: 1.00 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      16.40 ft / 5.00 m
      - Forecastle (20 %):   16.40 ft / 5.00 m
      - Mid (50 %):      16.40 ft / 5.00 m
      - Quarterdeck (15 %):   16.40 ft / 5.00 m
      - Stern:      16.40 ft / 5.00 m
      - Average freeboard:   16.40 ft / 5.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 50.5 %
      - Above water (accommodation/working, high = better): 138.1 %
   Waterplane Area: 36,637 Square feet or 3,404 Square metres
   Displacement factor (Displacement / loading): 121 %
   Structure weight / hull surface area: 209 lbs/sq ft or 1,019 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.79
      - Longitudinal: 8.40
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

main belt 300 mm
upper belt 125 mm