Pretty much still a work in progress, she is an experimental design to try out the torpedo cruiser role and to test the triple 4.7" mounts. I still havent decided to consider her an oversize DL or a small cruiser.
She carries 12 torpedo reloads, and the secondary armor sims light splinter shields for the torpedo mounts.
She is compared to my DL design here. Note: the torpedoes are not visible from the top, I showed them so their arrangement can be seen.
Adelaide, Australia Torpedo Cruiser laid down 1934
Displacement:
3,888 t light; 4,076 t standard; 4,631 t normal; 5,074 t full load
Dimensions: Length overall / water x beam x draught
495.79 ft / 490.00 ft x 49.00 ft x 15.00 ft (normal load)
151.12 m / 149.35 m x 14.94 m x 4.57 m
Armament:
12 - 4.70" / 119 mm guns (4x3 guns), 51.91lbs / 23.55kg shells, 1934 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
20 - 0.79" / 20.0 mm guns (10x2 guns), 0.24lbs / 0.11kg shells, 1934 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 659 lbs / 299 kg
Shells per gun, main battery: 250
18 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.20" / 30 mm - -
2nd: 0.50" / 13 mm - -
- Armour deck: 1.20" / 30 mm, Conning tower: 1.20" / 30 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 53,767 shp / 40,110 Kw = 33.00 kts
Range 7,500nm at 15.00 kts
Bunker at max displacement = 999 tons
Complement:
279 - 364
Cost:
£2.071 million / $8.283 million
Distribution of weights at normal displacement:
Armament: 82 tons, 1.8 %
Armour: 390 tons, 8.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 30 tons, 0.6 %
- Armour Deck: 353 tons, 7.6 %
- Conning Tower: 7 tons, 0.2 %
Machinery: 1,547 tons, 33.4 %
Hull, fittings & equipment: 1,769 tons, 38.2 %
Fuel, ammunition & stores: 742 tons, 16.0 %
Miscellaneous weights: 100 tons, 2.2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,839 lbs / 1,741 Kg = 74.0 x 4.7 " / 119 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 2.5 ft / 0.7 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.45
Seaboat quality (Average = 1.00): 1.19
Hull form characteristics:
Hull has low forecastle, low quarterdeck
and transom stern
Block coefficient: 0.450
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 25.42 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 9.00 degrees
Stern overhang: 2.46 ft / 0.75 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (17 %): 15.00 ft / 4.57 m (20.00 ft / 6.10 m aft of break)
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (19 %): 15.00 ft / 4.57 m (20.00 ft / 6.10 m before break)
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 18.61 ft / 5.67 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 125.3 %
- Above water (accommodation/working, high = better): 105.0 %
Waterplane Area: 15,909 Square feet or 1,478 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 66 lbs/sq ft or 323 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.74
- Longitudinal: 1.65
- Overall: 0.80
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform