**Tevere, Tuscan Kingdom heavy cruiser laid down 1923**

Displacement:

16.120 t light; 16.858 t standard; 19.080 t normal; 20.858 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)

(696,01 ft / 688,98 ft) x 78,74 ft x (22,97 / 24,57 ft)

(212,14 m / 210,00 m) x 24,00 m x (7,00 / 7,49 m)

Armament:

12 - 8,27" / 210 mm 45,0 cal guns - 330,69lbs / 150,00kg shells, 150 per gun

Breech loading guns in turret on barbette mounts, 1923 Model

4 x 3-gun mounts on centreline ends, evenly spread

2 raised mounts - superfiring

6 - 2,99" / 76,0 mm 45,0 cal guns - 11,02lbs / 5,00kg shells, 150 per gun

Anti-air guns in deck mounts, 1923 Model

6 x Single mounts on sides, evenly spread

6 raised mounts

20 - 1,57" / 40,0 mm 45,0 cal guns - 2,20lbs / 1,00kg shells, 150 per gun

Anti-air guns in deck mounts, 1923 Model

20 x Single mounts on sides, evenly spread

10 raised mounts

Weight of broadside 4.079 lbs / 1.850 kg

8 - 23,6" / 600 mm, 26,25 ft / 8,00 m torpedoes - 2,096 t each, 16,769 t total

In 4 sets of deck mounted carriage/fixed tubes

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 4,72" / 120 mm 447,83 ft / 136,50 m 10,66 ft / 3,25 m

Ends: Unarmoured

Main Belt covers 100% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 5,91" / 150 mm 4,72" / 120 mm 5,91" / 150 mm

2nd: 0,79" / 20 mm - -

3rd: 0,39" / 10 mm - -

- Armoured deck - multiple decks: 1,18" / 30 mm For and Aft decks

Forecastle: 1,18" / 30 mm Quarter deck: 1,18" / 30 mm

- Conning towers: Forward 1,97" / 50 mm, Aft 0,00" / 0 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 120.070 shp / 89.572 Kw = 33,00 kts

Range 10.000nm at 15,00 kts

Bunker at max displacement = 3.999 tons

Complement:

811 - 1.055

Cost:

£4,227 million / $16,909 million

Distribution of weights at normal displacement:

Armament: 1.000 tons, 5,2%

- Guns: 983 tons, 5,2%

- Torpedoes: 17 tons, 0,1%

Armour: 2.715 tons, 14,2%

- Belts: 944 tons, 4,9%

- Armament: 884 tons, 4,6%

- Armour Deck: 856 tons, 4,5%

- Conning Tower: 30 tons, 0,2%

Machinery: 4.013 tons, 21,0%

Hull, fittings & equipment: 8.272 tons, 43,4%

Fuel, ammunition & stores: 2.960 tons, 15,5%

Miscellaneous weights: 120 tons, 0,6%

- Hull below water: 25 tons

- Hull above water: 20 tons

- On freeboard deck: 50 tons

- Above deck: 25 tons

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

28.038 lbs / 12.718 Kg = 99,2 x 8,3 " / 210 mm shells or 2,6 torpedoes

Stability (Unstable if below 1.00): 1,20

Metacentric height 4,9 ft / 1,5 m

Roll period: 15,0 seconds

Steadiness - As gun platform (Average = 50 %): 51 %

- Recoil effect (Restricted arc if above 1.00): 0,43

Seaboat quality (Average = 1.00): 1,02

Hull form characteristics:

Hull has a flush deck,

a normal bow and large transom stern

Block coefficient (normal/deep): 0,536 / 0,548

Length to Beam Ratio: 8,75 : 1

'Natural speed' for length: 30,15 kts

Power going to wave formation at top speed: 57 %

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 (% = length of deck as a percentage of waterline length):

Fore end, Aft end

- Forecastle: 25,00%, 26,25 ft / 8,00 m, 22,97 ft / 7,00 m

- Forward deck: 30,00%, 22,97 ft / 7,00 m, 22,97 ft / 7,00 m

- Aft deck: 30,00%, 22,97 ft / 7,00 m, 19,69 ft / 6,00 m

- Quarter deck: 15,00%, 19,69 ft / 6,00 m, 19,69 ft / 6,00 m

- Average freeboard: 22,31 ft / 6,80 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 85,3%

- Above water (accommodation/working, high = better): 200,1%

Waterplane Area: 38.891 Square feet or 3.613 Square metres

Displacement factor (Displacement / loading): 137%

Structure weight / hull surface area: 158 lbs/sq ft or 772 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1,14

- Longitudinal: 1,48

- Overall: 1,17

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

extra space again dedicated to three aircraft and their support.

Two to enter service in Jan 1925, two more fitting out and two under construction

**Il Principe, Tuscan Kingdom Battleship laid down 1923**

Displacement:

45.299 t light; 47.986 t standard; 50.864 t normal; 53.167 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)

(811,72 ft / 803,81 ft) x 104,99 ft x (32,81 / 34,06 ft)

(247,41 m / 245,00 m) x 32,00 m x (10,00 / 10,38 m)

Armament:

10 - 14,96" / 380 mm 45,0 cal guns - 1.873,93lbs / 850,00kg shells, 150 per gun

Breech loading guns in turret on barbette mounts, 1923 Model

2 x 3-gun mounts on centreline, evenly spread

2 x 2-gun mounts on centreline ends, evenly spread

2 raised mounts

Aft Main mounts separated by engine room

12 - 5,51" / 140 mm 45,0 cal guns - 88,18lbs / 40,00kg shells, 150 per gun

Quick firing guns in deck and hoist mounts, 1923 Model

6 x 2-gun mounts on side ends, majority forward

8 - 3,94" / 100,0 mm 45,0 cal guns - 30,77lbs / 13,96kg shells, 150 per gun

Anti-air guns in deck mounts, 1923 Model

8 x Single mounts on centreline, aft deck forward

8 raised mounts

Weight of broadside 20.044 lbs / 9.092 kg

Armour:

- Belts: Width (max) Length (avg) Height (avg)

Main: 13,8" / 350 mm 459,32 ft / 140,00 m 13,12 ft / 4,00 m

Ends: Unarmoured

Main Belt covers 88% of normal length

- Torpedo Bulkhead:

1,18" / 30 mm 511,81 ft / 156,00 m 28,22 ft / 8,60 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)

Main: 15,7" / 400 mm 7,87" / 200 mm 15,7" / 400 mm

2nd: 2,95" / 75 mm 1,97" / 50 mm 1,97" / 50 mm

3rd: 0,79" / 20 mm - -

- Armoured deck - multiple decks: 6,69" / 170 mm For and Aft decks

Forecastle: 3,94" / 100 mm Quarter deck: 3,94" / 100 mm

- Conning towers: Forward 1,97" / 50 mm, Aft 0,00" / 0 mm

Machinery:

Oil fired boilers, steam turbines,

Geared drive, 4 shafts, 173.899 shp / 129.729 Kw = 30,00 kts

Range 7.500nm at 15,00 kts

Bunker at max displacement = 5.180 tons

Complement:

1.693 - 2.201

Cost:

£11,873 million / $47,492 million

Distribution of weights at normal displacement:

Armament: 3.744 tons, 7,4%

Armour: 16.216 tons, 31,9%

- Belts: 3.641 tons, 7,2%

- Torpedo bulkhead: 631 tons, 1,2%

- Armament: 4.720 tons, 9,3%

- Armour Deck: 7.165 tons, 14,1%

- Conning Tower: 58 tons, 0,1%

Machinery: 5.812 tons, 11,4%

Hull, fittings & equipment: 19.427 tons, 38,2%

Fuel, ammunition & stores: 5.566 tons, 10,9%

Miscellaneous weights: 100 tons, 0,2%

- Hull above water: 25 tons

- On freeboard deck: 50 tons

- Above deck: 25 tons

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

76.207 lbs / 34.567 Kg = 45,5 x 15,0 " / 380 mm shells or 9,7 torpedoes

Stability (Unstable if below 1.00): 1,09

Metacentric height 6,3 ft / 1,9 m

Roll period: 17,5 seconds

Steadiness - As gun platform (Average = 50 %): 61 %

- Recoil effect (Restricted arc if above 1.00): 0,89

Seaboat quality (Average = 1.00): 1,22

Hull form characteristics:

Hull has low quarterdeck ,

a normal bow and a cruiser stern

Block coefficient (normal/deep): 0,643 / 0,647

Length to Beam Ratio: 7,66 : 1

'Natural speed' for length: 28,35 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 (% = length of deck as a percentage of waterline length):

Fore end, Aft end

- Forecastle: 30,00%, 29,53 ft / 9,00 m, 29,53 ft / 9,00 m

- Forward deck: 30,00%, 29,53 ft / 9,00 m, 26,25 ft / 8,00 m

- Aft deck: 25,00%, 26,25 ft / 8,00 m, 26,25 ft / 8,00 m

- Quarter deck: 15,00%, 22,97 ft / 7,00 m, 22,97 ft / 7,00 m

- Average freeboard: 27,23 ft / 8,30 m

Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 85,2%

- Above water (accommodation/working, high = better): 196,1%

Waterplane Area: 64.233 Square feet or 5.967 Square metres

Displacement factor (Displacement / loading): 116%

Structure weight / hull surface area: 229 lbs/sq ft or 1.118 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1,07

- Longitudinal: 1,58

- Overall: 1,11

Hull space for machinery, storage, compartmentation is adequate

Room for accommodation and workspaces is excellent

Good seaboat, rides out heavy weather easily

**Regarding carriers**, I can't design them in springsharp, so I'd like to have two small carriers finished based on my Arno-class, I'd propose 13000 ts each and 15-20 aircraft (comparable to HMS Hermes) and as a bigger ship, a conversion of a Caracciolo-class battleship to a carrier, to be finished in 1925 (planned by real-life Italy but not performed). The latter should have a total capacity of 60-80 aircraft, being a bit smaller than the Lexingtons.

Edited to include the battleship design - do we go by standard not over 50 000 ts or normal not over the limit ?