WesWorld

New ships built to the light cruisr limit. These use the powered 6" twins used in the escort cruisers.

Four ships are planned with the first pair, Psara and Spetsai have been ordered.

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Psara Class CL




RHN C-27 Light Cruiser Class, Greek Light Cruiser laid down 1930

Displacement:
7,928 t light; 8,280 t standard; 9,340 t normal; 10,187 t full load

Dimensions: Length overall / water x beam x draught
585.63 ft / 580.00 ft x 63.00 ft x 18.00 ft (normal load)
178.50 m / 176.78 m x 19.20 m x 5.49 m

Armament:
8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1930 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 5.00" / 127 mm guns (2x2 guns), 62.50lbs / 28.35kg shells, 1930 Model
Anti-aircraft guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
4 - 5.00" / 127 mm guns (2x2 guns), 62.50lbs / 28.35kg shells, 1930 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1930 Model
Quick firing guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0.50" / 12.7 mm guns (6x2 guns), 0.06lbs / 0.03kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1,380 lbs / 626 kg
Shells per gun, main battery: 200
16 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.00" / 127 mm 314.00 ft / 95.71 m 9.52 ft / 2.90 m
Ends: Unarmoured
Main Belt covers 83 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.00" / 76 mm 1.00" / 25 mm 4.00" / 102 mm

- Armour deck: 2.10" / 53 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 59,081 shp / 44,075 Kw = 30.50 kts
Range 9,000nm at 15.00 kts (Bunkerage = 1,907 tons)

Complement:
474 - 617

Cost:
£2.815 million / $11.258 million

Distribution of weights at normal displacement:
Armament: 173 tons, 1.8 %
Armour: 1,840 tons, 19.7 %
- Belts: 647 tons, 6.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 213 tons, 2.3 %
- Armour Deck: 981 tons, 10.5 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,790 tons, 19.2 %
Hull, fittings & equipment: 3,644 tons, 39.0 %
Fuel, ammunition & stores: 1,412 tons, 15.1 %
Miscellaneous weights: 480 tons, 5.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15,057 lbs / 6,830 Kg = 139.4 x 6.0 " / 152 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.30
Metacentric height 4.0 ft / 1.2 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 48 %
- Recoil effect (Restricted arc if above 1.00): 0.25
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.497
Length to Beam Ratio: 9.21 : 1
'Natural speed' for length: 27.67 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.00 ft / 6.40 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (62 %): 20.00 ft / 6.10 m (12.00 ft / 3.66 m aft of break)
- Quarterdeck (20 %): 12.00 ft / 3.66 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 17.04 ft / 5.19 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.2 %
- Above water (accommodation/working, high = better): 124.7 %
Waterplane Area: 25,247 Square feet or 2,346 Square metres
Displacement factor (Displacement / loading): 128 %
Structure weight / hull surface area: 101 lbs/sq ft or 493 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.99
- Longitudinal: 1.11
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

Cheers,

Very nice, but why do you have 6" guns with AA capability and 5" AA guns?

Also, if the 6" guns are AA capable, should they be coded as dual-purpose? Or is the capability more marginal than that?

The 6" twins are powered but low angle loading and elevate to 50deg so they would be a marginal AA weapon. They are intended as a fast training high rate of fire weapon to counter fast moving targets - principally at night. Down the track, their advantage would be in how fast they can train and lay on a target.

Yamatos 18" guns could shoot at planes but that didn't make them DP.

Cheers,