Solas Cruisers

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S-Class

Sierra (ex-St. Louis), Irish Light Cruiser laid down 1902

Displacement:
2,921 t light; 3,066 t standard; 3,467 t normal; 3,787 t full load

Dimensions: Length overall / water x beam x draught
390.00 ft / 390.00 ft x 41.00 ft x 14.00 ft (normal load)
118.87 m / 118.87 m x 12.50 m x 4.27 m

Armament:
2 - 4.85" / 123 mm guns in single mounts, 55.00lbs / 24.95kg shells, 1902 Model
Quick firing guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 4.85" / 123 mm guns in single mounts, 55.00lbs / 24.95kg shells, 1902 Model
Quick firing guns in deck mounts
on side, evenly spread
6 - 1.85" / 47.0 mm guns in single mounts, 3.00lbs / 1.36kg shells, 1902 Model
Quick firing guns in deck mounts
on side, evenly spread, all raised mounts
8 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1902 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts

Weight of broadside 572 lbs / 259 kg
Shells per gun, main battery: 200

2 - 19.5" / 495.3 mm above water torpedoes
4 - 19.5" / 495.3 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.00" / 25 mm 390.00 ft / 118.87 m 6.00 ft / 1.83 m
Ends: Unarmoured
Main Belt covers 154 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
2nd: 1.00" / 25 mm - -

- Armour deck: 0.50" / 13 mm

Machinery:
Coal and oil fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 12,000 ihp / 8,952 Kw = 22.05 kts
Range 7,000nm at 10.00 kts (Bunkerage = 722 tons)

Complement:
225 - 293

Cost:
£0.389 million / $1.558 million

Distribution of weights at normal displacement:
Armament: 74 tons, 2.1 %
Armour: 216 tons, 6.2 %
- Belts: 87 tons, 2.5 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 27 tons, 0.8 %
- Armour Deck: 102 tons, 3.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,606 tons, 46.3 %
Hull, fittings & equipment: 1,020 tons, 29.4 %
Fuel, ammunition & stores: 545 tons, 15.7 %
Miscellaneous weights: 5 tons, 0.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,358 lbs / 616 Kg = 23.8 x 4.9 " / 123 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.84
Metacentric height 3.5 ft / 1.1 m
Roll period: 9.2 seconds
Steadiness - As gun platform (Average = 50 %): 68 %
- Recoil effect (Restricted arc if above 1.00): 0.14
Seaboat quality (Average = 1.00): 1.35

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.542
Length to Beam Ratio: 9.51 : 1
'Natural speed' for length: 19.75 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 12.50 ft / 3.81 m
- Forecastle (20 %): 11.50 ft / 3.51 m
- Mid (50 %): 10.50 ft / 3.20 m
- Quarterdeck (15 %): 10.50 ft / 3.20 m
- Stern: 11.50 ft / 3.51 m
- Average freeboard: 11.01 ft / 3.35 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 185.1 %
- Above water (accommodation/working, high = better): 93.1 %
Waterplane Area: 11,076 Square feet or 1,029 Square metres
Displacement factor (Displacement / loading): 82 %
Structure weight / hull surface area: 61 lbs/sq ft or 296 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.00
- Longitudinal: 1.01
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily

Ships: Sierra, Slany, Sosanna, and Sheelah (All units to be delivered by 1/8/1920)

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K-Class

Kerrianne Class, Irish Light Cruiser laid down 1920 (Engine 1912)

Displacement:
    3,000 t light; 3,146 t standard; 3,463 t normal; 3,717 t full load

Dimensions: Length overall / water x beam x draught
    320.00 ft / 310.00 ft x 50.00 ft x 14.00 ft (normal load)
    97.54 m / 94.49 m x 15.24 m  x 4.27 m

Armament:
      4 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1920 Model
      Breech loading guns in deck mounts with hoists
      on centreline ends, evenly spread, 2 raised mounts - superfiring
      2 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1920 Model
      Breech loading guns in deck mounts with hoists
      on side, all forward
      4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1920 Model
      Quick firing guns in deck mounts
      on side, all amidships
      4 - 0.98" / 25.0 mm guns (2x2 guns), 0.48lbs / 0.22kg shells, 1920 Model
      Machine guns in deck mounts
      on side, all aft
      2 - 0.98" / 25.0 mm guns (1x2 guns), 0.48lbs / 0.22kg shells, 1920 Model
      Machine guns in deck mount
      on centreline amidships
    Weight of broadside 731 lbs / 332 kg
    Shells per gun, main battery: 172

Armour:
   - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    4.00" / 102 mm    201.50 ft / 61.42 m    8.49 ft / 2.59 m
    Ends:    1.00" / 25 mm    108.48 ft / 33.06 m    8.49 ft / 2.59 m
    Upper:    2.00" / 51 mm    201.50 ft / 61.42 m    8.00 ft / 2.44 m
      Main Belt covers 100 % of normal length

   - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    3.00" / 76 mm    1.00" / 25 mm        3.00" / 76 mm
    2nd:    3.00" / 76 mm    1.00" / 25 mm        3.00" / 76 mm
    3rd:    1.00" / 25 mm    0.25" / 6 mm              -
    4th:    0.50" / 13 mm          -                  -
    5th:    0.50" / 13 mm          -                  -

   - Armour deck: 1.50" / 38 mm, Conning tower: 5.00" / 127 mm

Machinery:
    Diesel Internal combustion motors,
    Direct drive, 2 shafts, 13,958 shp / 10,413 Kw = 22.00 kts
    Range 5,000nm at 12.00 kts
    Bunker at max displacement = 571 tons

Complement:
    225 - 293

Cost:
    £0.626 million / $2.503 million

Distribution of weights at normal displacement:
    Armament: 97 tons, 2.8 %
    Armour: 861 tons, 24.9 %
       - Belts: 475 tons, 13.7 %
       - Torpedo bulkhead: 0 tons, 0.0 %
       - Armament: 59 tons, 1.7 %
       - Armour Deck: 303 tons, 8.7 %
       - Conning Tower: 25 tons, 0.7 %
    Machinery: 557 tons, 16.1 %
    Hull, fittings & equipment: 1,230 tons, 35.5 %
    Fuel, ammunition & stores: 463 tons, 13.4 %
    Miscellaneous weights: 256 tons, 7.4 %

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      5,399 lbs / 2,449 Kg = 50.0 x 6.0 " / 152 mm shells or 1.3 torpedoes
    Stability (Unstable if below 1.00): 1.21
    Metacentric height 2.5 ft / 0.8 m
    Roll period: 13.2 seconds
    Steadiness    - As gun platform (Average = 50 %): 50 %
            - Recoil effect (Restricted arc if above 1.00): 0.30
    Seaboat quality  (Average = 1.00): 1.08

Hull form characteristics:
    Hull has rise forward of midbreak
    Block coefficient: 0.559
    Length to Beam Ratio: 6.20 : 1
    'Natural speed' for length: 17.61 kts
    Power going to wave formation at top speed: 61 %
    Trim (Max stability = 0, Max steadiness = 100): 46
    Bow angle (Positive = bow angles forward): 20.22 degrees
    Stern overhang: 3.00 ft / 0.91 m
    Freeboard (% = measuring location as a percentage of overall length):
       - Stem:        19.00 ft / 5.79 m
       - Forecastle (20 %):    16.00 ft / 4.88 m
       - Mid (65 %):        16.00 ft / 4.88 m (12.50 ft / 3.81 m aft of break)
       - Quarterdeck (15 %):    12.50 ft / 3.81 m
       - Stern:        12.50 ft / 3.81 m
       - Average freeboard:    15.02 ft / 4.58 m
    Ship tends to be wet forward

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 82.8 %
        - Above water (accommodation/working, high = better): 137.8 %
    Waterplane Area: 10,904 Square feet or 1,013 Square metres
    Displacement factor (Displacement / loading): 115 %
    Structure weight / hull surface area: 76 lbs/sq ft or 371 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0.91
        - Longitudinal: 2.39
        - Overall: 1.00
    Hull space for machinery, storage, compartmentation is excellent
    Room for accommodation and workspaces is excellent

100 tons Fire controle
50 tons mines
25 tons long range wireless
25 tons flag facilities
25 tons nightfighting equipment
25 tons medical facilities
6 tons construction reserve

Ships: Unknown number being constructed in foreign yards. Expected completion by 12/31/1920.
Possible Names: Kerianne, Kiahna, Kiara