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1

Thursday, February 8th 2007, 11:18am

Italian Ships for 1934

Quite a few this year;



The final two Condottieri Class are taken in hand for reconstructions. Structural problems were reported in 1929 which resulted in the first two vessel being converted into aircraft carriers. The final two ships were not judged to be in as bad a condition but recent checks have found that the problems have become exacerbated.

Da Guissano will be rebuilt into an anti-aircraft cruiser mounting the 100/65 gun in 8 mountings. The lack of a larger anti-aircraft weapon resulted in the choice of the 100/65 which is distinctly lacking against surface targets. However it is an excellent AA gun. The trade off was thought to be acceptable. The arrangement of the mountings provides reasonable arcs of fire. Also included in the reconstruction was a newer, larger superstructure and new engines.

Condottieri I, Italian Light Cruiser laid down 1925 (Engine 1934)

Displacement:
5,444 t light; 5,739 t standard; 6,664 t normal; 7,404 t full load

Dimensions: Length overall / water x beam x draught
550.44 ft / 524.93 ft x 52.49 ft x 19.69 ft (normal load)
167.77 m / 160.00 m x 16.00 m x 6.00 m

Armament:
8 - 3.94" / 100 mm guns (4x2 guns), 33.07lbs / 15.00kg shells, 1934 Model
Anti-aircraft guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3.94" / 100 mm guns (4x2 guns), 33.07lbs / 15.00kg shells, 1934 Model
Anti-aircraft guns in deck mounts with hoists
on side ends, evenly spread, 2 raised mounts - superfiring
20 - 1.85" / 47.0 mm guns (5x4 guns), 3.86lbs / 1.75kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 4 raised guns - superfiring
4 - 1.46" / 37.0 mm guns in single mounts, 1.83lbs / 0.83kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on centreline, all forward
Weight of broadside 614 lbs / 278 kg
Shells per gun, main battery: 400

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.76" / 70 mm 448.72 ft / 136.77 m 8.69 ft / 2.65 m
Ends: Unarmoured
Main Belt covers 132 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.79" / 20 mm -
2nd: 1.18" / 30 mm 0.79" / 20 mm -
3rd: 0.39" / 10 mm 0.39" / 10 mm -

- Armour deck: 1.38" / 35 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 62,000 shp / 46,252 Kw = 32.63 kts
Range 3,000nm at 25.00 kts
Bunker at max displacement = 1,665 tons

Complement:
368 - 479

Cost:
£1.633 million / $6.530 million

Distribution of weights at normal displacement:
Armament: 70 tons, 1.0 %
Armour: 951 tons, 14.3 %
- Belts: 428 tons, 6.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 44 tons, 0.7 %
- Armour Deck: 458 tons, 6.9 %
- Conning Tower: 21 tons, 0.3 %
Machinery: 1,784 tons, 26.8 %
Hull, fittings & equipment: 2,340 tons, 35.1 %
Fuel, ammunition & stores: 1,220 tons, 18.3 %
Miscellaneous weights: 300 tons, 4.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,851 lbs / 3,561 Kg = 257.3 x 3.9 " / 100 mm shells or 1.3 torpedoes
Stability (Unstable if below 1.00): 1.32
Metacentric height 3.1 ft / 0.9 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.20
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.430
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 26.38 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.81 ft / 10.00 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (40 %): 22.97 ft / 7.00 m (14.76 ft / 4.50 m aft of break)
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 18.83 ft / 5.74 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102.0 %
- Above water (accommodation/working, high = better): 160.8 %
Waterplane Area: 17,967 Square feet or 1,669 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 76 lbs/sq ft or 373 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.86
- Longitudinal: 1.66
- Overall: 0.92
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

This post has been edited 1 times, last edit by "Red Admiral" (Feb 8th 2007, 8:05pm)


2

Thursday, February 8th 2007, 11:30am



The second vessel, Bande Nere, is to be rebuilt as a fast transport ship.

She gets a new steam/diesel powerplant and additional bunkerage. Three 152mm barbettes are removed leaving just A turret. A large transport deck is built along the weather deck. Forward of the new superstructure is a small flying off deck for light aircraft and autogyros. On the starboard side of the superstructure is a large gangway for ease of embarkation in port. Aft is a 100t crane and two assault boats.

She is expected to serve as an aircraft transport, replenishment vessel or a landing support vessel. Below decks are accomodations for 300 troops. Between this ship and the ten MZ700 craft it is possible to transport a battalion of soldiers over short distances.

Displacement:
5,840 t light; 6,015 t standard; 6,963 t normal; 7,721 t full load

Dimensions: Length overall / water x beam x draught
539.12 ft / 524.93 ft x 52.49 ft (Bulges 55.77 ft) x 19.36 ft (normal load)
164.32 m / 160.00 m x 16.00 m (Bulges 17.00 m) x 5.90 m

Armament:
2 - 5.98" / 152 mm guns (1x2 guns), 110.23lbs / 50.00kg shells, 1925 Model
Breech loading guns in a turret (on a barbette)
on centreline forward
16 - 1.85" / 47.0 mm guns (4x4 guns), 3.86lbs / 1.75kg shells, 1925 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 282 lbs / 128 kg
Shells per gun, main battery: 200

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.31" / 135 mm 2.76" / 70 mm 1.97" / 50 mm
2nd: 0.39" / 10 mm 0.39" / 10 mm -

- Armour deck: 1.38" / 35 mm, Conning tower: 1.42" / 36 mm

Machinery:
Oil fired boilers, steam turbines plus diesel motors,
Geared drive, 2 shafts, 52,000 shp / 38,792 Kw = 30.97 kts
Range 3,000nm at 25.00 kts
Bunker at max displacement = 1,706 tons

Complement:
380 - 495

Cost:
£1.445 million / $5.782 million

Distribution of weights at normal displacement:
Armament: 33 tons, 0.5 %
Armour: 528 tons, 7.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 59 tons, 0.8 %
- Armour Deck: 458 tons, 6.6 %
- Conning Tower: 11 tons, 0.2 %
Machinery: 1,496 tons, 21.5 %
Hull, fittings & equipment: 2,283 tons, 32.8 %
Fuel, ammunition & stores: 1,122 tons, 16.1 %
Miscellaneous weights: 1,500 tons, 21.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8,034 lbs / 3,644 Kg = 75.0 x 6.0 " / 152 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.5 ft / 0.8 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 1.22

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.430
Length to Beam Ratio: 9.41 : 1
'Natural speed' for length: 26.52 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 41
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 9.84 ft / 3.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (38 %): 22.97 ft / 7.00 m (14.76 ft / 4.50 m aft of break)
- Quarterdeck (15 %): 14.76 ft / 4.50 m
- Stern: 14.76 ft / 4.50 m
- Average freeboard: 18.01 ft / 5.49 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 97.4 %
- Above water (accommodation/working, high = better): 153.4 %
Waterplane Area: 17,967 Square feet or 1,669 Square metres
Displacement factor (Displacement / loading): 132 %
Structure weight / hull surface area: 76 lbs/sq ft or 371 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.89
- Longitudinal: 1.43
- Overall: 0.93
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

HoOmAn

Keeper of the Sacred Block Coefficient

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3

Thursday, February 8th 2007, 11:55am

Bande Nere is a cool design, something really unique. Is she based on some historical ideas?

4

Thursday, February 8th 2007, 11:58am

Whilst I have no idea why you want a transport like the Banda Nere, it does look pretty cool. Although my first response was "what on earth is that?"

5

Thursday, February 8th 2007, 12:05pm

A couple of very nice designs.

I like the AA Cruiser very much, I'm worried though the two beam turrets in position C might cause blast problems on the bridge and forward director.

What kind of operational need does she fullfil, how did Italy come to the conclusion she needed such a ship?

The Bande Nere is indeed cool! Like I said earlier in the week I wanted more quirky designs and you've certainly produced one there. Much better than your previous aborted LSD copy.

6

Thursday, February 8th 2007, 2:53pm

Very nice!

7

Thursday, February 8th 2007, 5:07pm

I don't think blast will be a problem for the bridge or directors. They are only 100mm guns. The need has become apparent following extensive exercises off Taranto. Trying dive-bombing a bit more with aircraft tending to attack along the longitudinal axis - more need for increased fire over fore/aft. The new ships abroad haven't gone unnoticed. The Italian tactician Giuseppe Fioravanzo has been arguing for such a ship since the early twenties. Perhaps he'll finally shut up.

Bande Nere is nothing like a historical design. For an aircraft ferry, the other two Condottieri ships are pretty good but they have complications. I then added some capability as a proto-landing ship. Well not really landing ship, but a troop/vehicle transport.

8

Thursday, February 8th 2007, 7:56pm

RE: Italian Ships for 1934

for the CLAA...

Quoted

Originally posted by Red Admiral
20 - 1.85" / 47.0 mm guns (6 mounts), 3.86lbs / 1.75kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 4 raised guns - superfiring


I count 5 mounts on the picture; might that be why we don't see the usual 5x4 guns stat? (:

9

Saturday, February 10th 2007, 11:55am



Two light cruisers laid down. Duca degli Abruzzi and Duca d'Aosta. Evolution over the previous class but with same general layout. Beam and displacement have been increased significantly to 8000tons.

Main armament is 4 duple 152/53. Although ballistically similar to the previous weapons they are in fact different. A vertically-sliding breech block is used and the mounting elevates up to 80°. As in the previous model the loading trays move with the gun allowing loading at any angle. Under development since 1930 with the stillborn 135/54 the mounting has undergone a few designs iterations as problems with ammunition supply were noticed. The sea trials onboard the cruiser Quarto were especially useful. Another change to the mounting are the increased train and elevation rates for increased usefulness against small craft and the new generation monoplanes. Other armament consists of 47/62 in the standard quadruple mountings, and 6 duple stablised twin 25mm mountings.

Machinery is similar to the previous class but with output being slightly increased.

Armour consists of a 100mm thick external inclined belt and considerable deck armour. The chosen range of engagement over 150-200hm when performing escort duties dictated the need for increased deck armour against 150mm and 210mm shellfire.

Edit: revised armouring. Now longer 100mm belt and 60mm deck.

Incrociatore Italiano laid down 1934

Displacement:
8,095 t light; 8,398 t standard; 9,777 t normal; 10,880 t full load

Dimensions: Length overall / water x beam x draught
579.02 ft / 557.74 ft x 65.62 ft x 18.70 ft (normal load)
176.48 m / 170.00 m x 20.00 m x 5.70 m

Armament:
8 - 5.98" / 152 mm guns (4x2 guns), 99.21lbs / 45.00kg shells, 1934 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
28 - 1.85" / 47.0 mm guns (7x4 guns), 3.86lbs / 1.75kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
12 - 0.98" / 25.0 mm guns (6x2 guns), 0.53lbs / 0.24kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, all forward
Weight of broadside 908 lbs / 412 kg
Shells per gun, main battery: 200
16 - 23.6" / 600 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 328.08 ft / 100.00 m 10.47 ft / 3.19 m
Ends: Unarmoured
Upper: 0.79" / 20 mm 65.62 ft / 20.00 m 8.20 ft / 2.50 m
Main Belt covers 90 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5.31" / 135 mm 2.76" / 70 mm 3.94" / 100 mm
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

- Armour deck: 2.36" / 60 mm, Conning tower: 5.31" / 135 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 66,000 shp / 49,236 Kw = 31.02 kts
Range 3,500nm at 25.00 kts
Bunker at max displacement = 2,482 tons

Complement:
491 - 639

Cost:
£3.186 million / $12.745 million

Distribution of weights at normal displacement:
Armament: 119 tons, 1.2 %
Armour: 2,069 tons, 21.2 %
- Belts: 612 tons, 6.3 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 296 tons, 3.0 %
- Armour Deck: 1,108 tons, 11.3 %
- Conning Tower: 52 tons, 0.5 %
Machinery: 1,899 tons, 19.4 %
Hull, fittings & equipment: 3,608 tons, 36.9 %
Fuel, ammunition & stores: 1,682 tons, 17.2 %
Miscellaneous weights: 400 tons, 4.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,837 lbs / 7,184 Kg = 147.8 x 6.0 " / 152 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.3 ft / 1.0 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.21
Seaboat quality (Average = 1.00): 1.04

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.500
Length to Beam Ratio: 8.50 : 1
'Natural speed' for length: 27.31 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 67
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.17 ft / 9.50 m
- Forecastle (26 %): 21.33 ft / 6.50 m
- Mid (60 %): 21.33 ft / 6.50 m (13.12 ft / 4.00 m aft of break)
- Quarterdeck (25 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 19.07 ft / 5.81 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 77.9 %
- Above water (accommodation/working, high = better): 114.5 %
Waterplane Area: 25,357 Square feet or 2,356 Square metres
Displacement factor (Displacement / loading): 135 %
Structure weight / hull surface area: 98 lbs/sq ft or 477 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.33
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

48t = 16x600mm torpedoes
40t = 25mm deck over torpedoes

Belt = 100mm@20degrees = 3.00 eff height

100 x 50kg AP shells
100 x 40kg MTF shells

This post has been edited 1 times, last edit by "Red Admiral" (Feb 11th 2007, 11:46am)


10

Saturday, February 10th 2007, 1:37pm

Hmmm. Good deck armor, a bit slow, and a good, but quite short, belt.

The stack seems a bit small to support the power plant of a ship this size. For the period, the stern tower seems very off: there's no need for it to be so big, no director atop it, nothing. There are also probably too many whip-type radio aerials aboard for the time period.

11

Saturday, February 10th 2007, 2:00pm

She is fast enough. Belt does cover the vitals but is a bit short. Had problems cramming enough protection onto the hull so length had to be reduced to _acceptable_ standards rather than good. Large beam diminishes the problem.

The funnel is big enough for the power plant. I measured stuff off VV and a couple of other designs. The funnel is enough for about 80,000shp. Unit machnery would be better but require two funnels and space is limited. Installing extra pumping capacity with diesel gensets and the extra beam makes up for it somewhat.

The main mast/tower is a bit big but its difficult to get the height otherwise. The radio aerials are maybe a bit too much but they fit into the perceived role of these ships.

12

Saturday, February 10th 2007, 2:18pm

On the main mast, there's, right now, no point to it: there's no observation station, no director, there's nothing up there. If it's just a radio antenna carrier, a simple braced pole mast would work. Right now the ship looks like a cross between a pre-WWII CL and a Kara-class missile cruiser.

13

Saturday, February 10th 2007, 5:31pm

Updated with spotting top. Increases horizon distance a fair bit.

14

Sunday, February 11th 2007, 12:28am

Other Ships

Other ships to be laid down in 1934 include a couple more small submarines, some additional Impavido Class destroyers and Batch II of the Gabbiano Class escorts.

15

Monday, February 12th 2007, 12:37pm



The largest ship of the year.

Two vessels to be laid down as replacements for Conte di Cavour and Andrea Doria. Provisional names are Littorio and Vittorio Veneto.

The design builds on the cancelled VEIII class from 1928. The overall layout is similar but there are subtle design differences.

Hull: Slightly beamier for a wider TDS. No quarterdeck aft and generally higher freeboard to give better seakeeping.

Machinery: Same with 160,000shp on 4 shafts. Improvements to the hull form have allowed the maximum speed to be increased to around 31knts. Less bunkerage as the range of the previous ship was thought to be excessive. Triple rudders used instead of the old single rudder.

Superstructure: Generally larger. Moves away from the previous tower superstructure. Fitted with newer San Giorgio AA directors and a larger main rangefinder. (Electronics fit pictured as fitted 1937 with EC.2 and Lince)

Main Armament: Similar main armament with 9x381/50 guns in 3 triple turrets fore and aft.

Secondary Armament: New Dual-Purpose 152mm/53 guns fitted in twin mountings on the beam. They are thought to be generally superior for AA and ASuW use to the 135/45 triples.

AA armament: Increased since 1928 with newer 47mm guns and more of them. Will probably be fitted with some 20mm FFL guns in service in unpowered mountings.

Belt Armour: Main belt is thinner but improvements in quality mean that it's effectiveness is about the same. 70mm external decapping plate with 280mm outer hull plate inclined at 15°. Upper belt removed for weight saving. A lower belt in the TDS is used to stop diving shells. It is of 150mm thickness and 1m deep.

Deck Armour: Quite a change with no burster deck used. Instead there is a thick armoured deck level with the top of the armour belt. It is 175mm thick over the magazines and 155mm thick over the machinery. Below is a 25mm thick splinter deck with slopes on the outside leading to the bottom of the belt armour. The steering gear has a 100mm thick armoured box.

Other armour: The main turrets have 350mm faces, 200mm roofs and 350mm rears. They are mounted on 350mm thick barbettes. Conning tower armour is just 70mm splinter plate so as not to detonate large calibre rounds.

Other notes: Quarterdeck is strengthened allowing for vertiplane landings.



Red: Armour Blue: Legend Waterline Green: Liquid loaded portions of TDS Pink: Pugliese filling (half cylinders)


Battleship laid down 1934

Displacement:
39,841 t light; 41,940 t standard; 46,053 t normal; 49,344 t full load

Dimensions: Length overall / water x beam x draught
813.85 ft / 787.40 ft x 104.99 ft (Bulges 108.27 ft) x 33.46 ft (normal load)
248.06 m / 240.00 m x 32.00 m (Bulges 33.00 m) x 10.20 m

Armament:
9 - 15.00" / 381 mm guns (3x3 guns), 1,951.09lbs / 885.00kg shells, 1934 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
12 - 5.98" / 152 mm guns (6x2 guns), 99.21lbs / 45.00kg shells, 1934 Model
Dual purpose guns in turrets (on barbettes)
on side, all amidships
56 - 1.85" / 47.0 mm guns (14x4 guns), 3.86lbs / 1.75kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 18,966 lbs / 8,603 kg
Shells per gun, main battery: 110

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13.8" / 350 mm 436.35 ft / 133.00 m 13.12 ft / 4.00 m
Ends: Unarmoured
Main Belt covers 85 % of normal length

- Torpedo Bulkhead and Bulges:
2.17" / 55 mm 436.35 ft / 133.00 m 32.81 ft / 10.00 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 13.8" / 350 mm 9.06" / 230 mm 13.8" / 350 mm
3rd: 5.31" / 135 mm 2.76" / 70 mm 2.76" / 70 mm
4th: 0.39" / 10 mm 0.39" / 10 mm -

- Armour deck: 6.18" / 157 mm, Conning tower: 2.76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 160,000 shp / 119,360 Kw = 31.14 kts
Range 4,200nm at 25.00 kts
Bunker at max displacement = 7,403 tons

Complement:
1,571 - 2,043

Cost:
£18.592 million / $74.366 million

Distribution of weights at normal displacement:
Armament: 2,081 tons, 4.5 %
Armour: 15,117 tons, 32.8 %
- Belts: 3,500 tons, 7.6 %
- Torpedo bulkhead: 1,147 tons, 2.5 %
- Armament: 3,426 tons, 7.4 %
- Armour Deck: 6,968 tons, 15.1 %
- Conning Tower: 76 tons, 0.2 %
Machinery: 4,603 tons, 10.0 %
Hull, fittings & equipment: 17,440 tons, 37.9 %
Fuel, ammunition & stores: 6,212 tons, 13.5 %
Miscellaneous weights: 600 tons, 1.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
65,431 lbs / 29,679 Kg = 38.8 x 15.0 " / 381 mm shells or 10.0 torpedoes
Stability (Unstable if below 1.00): 1.16
Metacentric height 7.1 ft / 2.2 m
Roll period: 17.1 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.53
Seaboat quality (Average = 1.00): 1.02

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.565
Length to Beam Ratio: 7.27 : 1
'Natural speed' for length: 32.62 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 34.45 ft / 10.50 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 21.33 ft / 6.50 m
- Quarterdeck (15 %): 21.33 ft / 6.50 m
- Stern: 21.33 ft / 6.50 m
- Average freeboard: 22.82 ft / 6.96 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.1 %
- Above water (accommodation/working, high = better): 160.3 %
Waterplane Area: 60,934 Square feet or 5,661 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 206 lbs/sq ft or 1,005 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.33
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Deck
40mm Forwards, 155+25 machinery, 175+25 magazines, 100mm aft

Belt
70+350@15
Lower belt 150mm x 1m deep 310tons

This post has been edited 3 times, last edit by "Red Admiral" (Feb 12th 2007, 3:54pm)


16

Monday, February 12th 2007, 2:17pm

Fast and well armed, even looks fairly good (though that bulge on the tower's a bit unsightly).

Issues: the 152mm guns don't appear to have any special provisions for loading at high angles, that won't be good for their ability to serve in a heavy AA role.

Your description at the top and at the bottom contradict one another: at the top, there's a 280mm main belt, at the bottom it's claiming to be a 350mm main belt. I'm also a bit surprised at the thickness of the decapping plate.

17

Monday, February 12th 2007, 3:59pm

Which bulge on the tower?

The belt is 70+280mm. The Italians knew their stuff when it came to armour. They used a 70mm plate historically so here it is again. The thickness is enough for large calibre shells + a bit more. The German shells were hardest to decap. Assuming that SAE and India are using similar shells (which is pretty likely) that thickness is needed.

18

Monday, February 12th 2007, 4:37pm

The bulge on the tower foremast, below what looks like a secondary director.

If the plate historically was 70mm, then fine, but the Italians likely would not have known how difficult it was to decap Krupp projectiles.

19

Monday, February 12th 2007, 5:33pm

One other nit: fairly short belt, ie, not very tall, the main belt is only 3.86m tall given a 15 degree slope.

Kaiser Kirk

Lightbringer and former European Imperialist

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20

Monday, February 12th 2007, 5:52pm

Quoted

Originally posted by Hrolf Hakonson
The bulge on the tower foremast, below what looks like a secondary director.

If the plate historically was 70mm, then fine, but the Italians likely would not have known how difficult it was to decap Krupp projectiles.


Wasn't Krupp moved out of country post 1918? In which time period their shells would have been available on the open market, no?

Presuming Jutland occurred as historical, many countries would have been desirous of examining German shells.