I have started work to remodel and redraw the "mod admiral class" or "OH Nordenskiöld" class. They are "light armoured cruiser similar to the RN C & D class cruisers.
![[ img ]](https://dl.dropbox.com/s/h4r688dx59d9oaj/OHN%20wip1.png?dl=0)
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OH Nordenskiöld, Sweden Fleet scout (light cruiser) laid down 1916
Displacement:
4 187 t light; 4 439 t standard; 4 600 t normal; 4 729 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(430,85 ft / 426,51 ft) x 45,93 ft x (16,40 / 16,75 ft)
(131,32 m / 130,00 m) x 14,00 m x (5,00 / 5,11 m)
Armament:
8 - 5,98" / 152 mm 45,0 cal guns - 108,07lbs / 49,02kg shells, 250 per gun
Quick firing guns in deck and hoist mounts, 1912 Model
4 x Twin mounts on centreline ends, evenly spread
2 raised mounts - superfiring
6 - 4,13" / 105 mm 45,0 cal guns - 35,62lbs / 16,16kg shells, 300 per gun
Quick firing guns in deck and hoist mounts, 1916 Model
6 x Single mounts on sides, evenly spread
4 - 2,24" / 57,0 mm 55,0 cal guns - 6,10lbs / 2,77kg shells, 300 per gun
Anti-air guns in deck mounts, 1916 Model
4 x Single mounts on side ends, evenly spread
4 raised mounts
Weight of broadside 1 103 lbs / 500 kg
Main Torpedoes
3 - 18,0" / 457 mm, 22,97 ft / 7,00 m torpedoes - 1,101 t each, 3,303 t total
In 2 sets of deck mounted carriage/fixed tubes
Mines
2 - 881,85 lbs / 400,00 kg mines + 60 reloads - 24,408 t total
in Above water - Stern racks/rails
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 360,89 ft / 110,00 m 8,69 ft / 2,65 m
Ends: 0,79" / 20 mm 65,62 ft / 20,00 m 8,69 ft / 2,65 m
Upper: 0,79" / 20 mm 277,23 ft / 84,50 m 8,01 ft / 2,44 m
Main Belt covers 130 % of normal length
Main Belt inclined 10,00 degrees (positive = in)
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,97" / 50 mm 0,98" / 25 mm 1,97" / 50 mm
2nd: 0,98" / 25 mm - 0,98" / 25 mm
3rd: 0,39" / 10 mm - -
- Armoured deck - multiple decks:
For and Aft decks: 0,39" / 10 mm
Forecastle: 0,98" / 25 mm Quarter deck: 0,39" / 10 mm
- Conning towers: Forward 1,97" / 50 mm, Aft 1,97" / 50 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 4 shafts, 37 913 shp / 28 283 Kw = 28,50 kts
Range 2 000nm at 12,00 kts
Bunker at max displacement = 291 tons (50% coal)
Complement:
279 - 363
Cost:
£0,749 million / $2,995 million
Distribution of weights at normal displacement:
Armament: 284 tons, 6,2 %
- Guns: 249 tons, 5,4 %
- Weapons: 35 tons, 0,8 %
Armour: 520 tons, 11,3 %
- Belts: 333 tons, 7,2 %
- Armament: 54 tons, 1,2 %
- Armour Deck: 109 tons, 2,4 %
- Conning Towers: 23 tons, 0,5 %
Machinery: 1 480 tons, 32,2 %
Hull, fittings & equipment: 1 813 tons, 39,4 %
Fuel, ammunition & stores: 413 tons, 9,0 %
Miscellaneous weights: 90 tons, 2,0 %
- Hull below water: 50 tons
- Hull above water: 20 tons
- On freeboard deck: 20 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3 500 lbs / 1 588 Kg = 32,7 x 6,0 " / 152 mm shells or 0,9 torpedoes
Stability (Unstable if below 1.00): 1,12
Metacentric height 1,9 ft / 0,6 m
Roll period: 13,9 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0,80
Seaboat quality (Average = 1.00): 1,21
Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0,501 / 0,504
Length to Beam Ratio: 9,29 : 1
'Natural speed' for length: 20,65 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: -6,56 ft / -2,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00 %, 24,61 ft / 7,50 m, 22,97 ft / 7,00 m
- Forward deck: 30,00 %, 22,97 ft / 7,00 m, 19,69 ft / 6,00 m
- Aft deck: 35,00 %, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
- Quarter deck: 15,00 %, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
- Average freeboard: 17,68 ft / 5,39 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 128,4 %
- Above water (accommodation/working, high = better): 149,6 %
Waterplane Area: 13 064 Square feet or 1 214 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 83 lbs/sq ft or 406 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,34
- Overall: 1,00
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily
Displacement:
4 187 t light; 4 439 t standard; 4 600 t normal; 4 729 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(430,85 ft / 426,51 ft) x 45,93 ft x (16,40 / 16,75 ft)
(131,32 m / 130,00 m) x 14,00 m x (5,00 / 5,11 m)
Armament:
8 - 5,98" / 152 mm 45,0 cal guns - 108,07lbs / 49,02kg shells, 250 per gun
Quick firing guns in deck and hoist mounts, 1912 Model
4 x Twin mounts on centreline ends, evenly spread
2 raised mounts - superfiring
6 - 4,13" / 105 mm 45,0 cal guns - 35,62lbs / 16,16kg shells, 300 per gun
Quick firing guns in deck and hoist mounts, 1916 Model
6 x Single mounts on sides, evenly spread
4 - 2,24" / 57,0 mm 55,0 cal guns - 6,10lbs / 2,77kg shells, 300 per gun
Anti-air guns in deck mounts, 1916 Model
4 x Single mounts on side ends, evenly spread
4 raised mounts
Weight of broadside 1 103 lbs / 500 kg
Main Torpedoes
3 - 18,0" / 457 mm, 22,97 ft / 7,00 m torpedoes - 1,101 t each, 3,303 t total
In 2 sets of deck mounted carriage/fixed tubes
Mines
2 - 881,85 lbs / 400,00 kg mines + 60 reloads - 24,408 t total
in Above water - Stern racks/rails
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 360,89 ft / 110,00 m 8,69 ft / 2,65 m
Ends: 0,79" / 20 mm 65,62 ft / 20,00 m 8,69 ft / 2,65 m
Upper: 0,79" / 20 mm 277,23 ft / 84,50 m 8,01 ft / 2,44 m
Main Belt covers 130 % of normal length
Main Belt inclined 10,00 degrees (positive = in)
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,97" / 50 mm 0,98" / 25 mm 1,97" / 50 mm
2nd: 0,98" / 25 mm - 0,98" / 25 mm
3rd: 0,39" / 10 mm - -
- Armoured deck - multiple decks:
For and Aft decks: 0,39" / 10 mm
Forecastle: 0,98" / 25 mm Quarter deck: 0,39" / 10 mm
- Conning towers: Forward 1,97" / 50 mm, Aft 1,97" / 50 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 4 shafts, 37 913 shp / 28 283 Kw = 28,50 kts
Range 2 000nm at 12,00 kts
Bunker at max displacement = 291 tons (50% coal)
Complement:
279 - 363
Cost:
£0,749 million / $2,995 million
Distribution of weights at normal displacement:
Armament: 284 tons, 6,2 %
- Guns: 249 tons, 5,4 %
- Weapons: 35 tons, 0,8 %
Armour: 520 tons, 11,3 %
- Belts: 333 tons, 7,2 %
- Armament: 54 tons, 1,2 %
- Armour Deck: 109 tons, 2,4 %
- Conning Towers: 23 tons, 0,5 %
Machinery: 1 480 tons, 32,2 %
Hull, fittings & equipment: 1 813 tons, 39,4 %
Fuel, ammunition & stores: 413 tons, 9,0 %
Miscellaneous weights: 90 tons, 2,0 %
- Hull below water: 50 tons
- Hull above water: 20 tons
- On freeboard deck: 20 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3 500 lbs / 1 588 Kg = 32,7 x 6,0 " / 152 mm shells or 0,9 torpedoes
Stability (Unstable if below 1.00): 1,12
Metacentric height 1,9 ft / 0,6 m
Roll period: 13,9 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0,80
Seaboat quality (Average = 1.00): 1,21
Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0,501 / 0,504
Length to Beam Ratio: 9,29 : 1
'Natural speed' for length: 20,65 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: -6,56 ft / -2,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00 %, 24,61 ft / 7,50 m, 22,97 ft / 7,00 m
- Forward deck: 30,00 %, 22,97 ft / 7,00 m, 19,69 ft / 6,00 m
- Aft deck: 35,00 %, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
- Quarter deck: 15,00 %, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
- Average freeboard: 17,68 ft / 5,39 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 128,4 %
- Above water (accommodation/working, high = better): 149,6 %
Waterplane Area: 13 064 Square feet or 1 214 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 83 lbs/sq ft or 406 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,34
- Overall: 1,00
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily
![[ img ]](https://dl.dropbox.com/s/2y7vytcazhh3o2v/OHN%20wip2.png?dl=0)
