Here we have a relatively light vessel designed in SS2. Reportedly it has historical freeboard, speed, and other atributes. The vessel's seakeeping is reported as very poor. How should such a vessel be treated within a sim system such as this one and Navalism? Since SS2 has admitted problems with light vessels, most destroyers we design for the early 20th century tend to turn into "pocket cruisers" with high freeboard and more guns and torpedoes than historical (mainly just to get the ship to be "seaworthy").
What opinions does this board have on this matter? How would you alter this design to get it to be "seaworthy" yet histoically accurate? How would you treat the "real" seakeeping on this vessel as is? Would is survive in the waters around the South Atlantic and Indian Ocean (especially near the Cape of Good Hope)?
As a moderator an Navalism, a judgement has been requested on this vessel, however my experiance in this field is limited, and this is the best source I have on this matter that deals with SS2 regularly.
Korvette laid down 1912
(design by P3D)
Displacement:
750 t light; 779 t standard; 926 t normal; 1,044 t full load
Dimensions: Length overall / water x beam x draught
260.00 ft / 260.00 ft x 26.00 ft x 9.50 ft (normal load)
79.25 m / 79.25 m x 7.92 m x 2.90 m
Armament:
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1912 Model
Quick firing guns in deck mounts
on centreline, evenly spread, 1 raised mount
Aft Main mounts separated by engine room
4 - 0.40" / 10.2 mm guns in single mounts, 0.03lbs / 0.01kg shells, 1912 Model
Machine guns in deck mounts
on centreline, all amidships
Weight of broadside 128 lbs / 58 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 22,283 shp / 16,623 Kw = 30.00 kts
Range 3,000nm at 15.00 kts
Bunker at max displacement = 265 tons
Complement:
83 - 109
Cost:
£0.107 million / $0.430 million
Distribution of weights at normal displacement:
Armament: 16 tons, 1.7 %
Armour: 4 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 483 tons, 52.2 %
Hull, fittings & equipment: 201 tons, 21.7 %
Fuel, ammunition & stores: 176 tons, 19.0 %
Miscellaneous weights: 45 tons, 4.9 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
186 lbs / 84 Kg = 5.8 x 4.0 " / 102 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.28
Metacentric height 1.0 ft / 0.3 m
Roll period: 10.7 seconds
Steadiness - As gun platform (Average = 50 %): 37 %
- Recoil effect (Restricted arc if above 1.00): 0.17
Seaboat quality (Average = 1.00): 0.46
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.505
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 16.12 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (20 %): 14.50 ft / 4.42 m
- Mid (35 %): 14.50 ft / 4.42 m (7.50 ft / 2.29 m aft of break)
- Quarterdeck (15 %): 7.50 ft / 2.29 m
- Stern: 7.50 ft / 2.29 m
- Average freeboard: 10.55 ft / 3.22 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 186.9 %
- Above water (accommodation/working, high = better): 36.8 %
Waterplane Area: 4,523 Square feet or 420 Square metres
Displacement factor (Displacement / loading): 47 %
Structure weight / hull surface area: 24 lbs/sq ft or 117 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.31
- Overall: 0.55
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Caution: Lacks seaworthiness - very limited seakeeping ability