Re: SDN World 3 Ship Design Thread
Posted: 2009-11-08 03:46pm
The successor to my Arno-class:
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 ?
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 ?