...tho "Antarctic Panzerschiffe" might be more like it. ^_^
Based on the real-world Finnish coast-defense ships, these ships will primarily serve as "normal" CDSes, but have reinforced hulls so that (at least) one will always accompany the Pacifica on its Antarctic voyages of discovery.
Note on armour: the main belt is actually 160mm for a height of 3m, but it thins below that (the sim of 40mm for over an extra 0.5m is an average).
Filipino Bacolod-class "Antarctic Battleship" laid down 1929
Displacement:
3,869 t light; 4,081 t standard; 4,697 t normal; 5,191 t full load
Dimensions: Length overall / water x beam x draught
319.95 ft / 305.12 ft x 54.79 ft x 18.04 ft (normal load)
97.52 m / 93.00 m x 16.70 m x 5.50 m
Armament:
6 - 7.09" / 180 mm guns (2x3 guns), 180.00lbs / 81.65kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
4 - 3.94" / 100 mm guns (2x2 guns), 32.00lbs / 14.51kg shells, 1929 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts - superfiring
4 - 3.94" / 100 mm guns (2x2 guns), 30.51lbs / 13.84kg shells, 1929 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
12 - 0.98" / 25.0 mm guns (4x3 guns), 0.57lbs / 0.26kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts
8 - 0.54" / 13.7 mm guns in single mounts, 0.11lbs / 0.05kg shells, 1929 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1,338 lbs / 607 kg
Shells per gun, main battery: 150
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.72" / 120 mm 239.50 ft / 73.00 m 9.84 ft / 3.00 m
Ends: 1.97" / 50 mm 65.62 ft / 20.00 m 9.84 ft / 3.00 m
Upper: 1.57" / 40 mm 108.27 ft / 33.00 m 11.48 ft / 3.50 m
Main Belt covers 121 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.10" / 155 mm 3.15" / 80 mm 4.92" / 125 mm
2nd: 1.18" / 30 mm 0.59" / 15 mm 1.18" / 30 mm
3rd: 1.18" / 30 mm 0.59" / 15 mm 1.18" / 30 mm
4th: 0.59" / 15 mm - -
- Armour deck: 3.15" / 80 mm, Conning tower: 3.15" / 80 mm
Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 11,527 shp / 8,599 Kw = 20.00 kts
Range 12,500nm at 12.00 kts (Bunkerage = 1,110 tons)
Complement:
283 - 368
Cost:
£1.294 million / $5.174 million
Distribution of weights at normal displacement:
Armament: 165 tons, 3.5 %
Armour: 1,555 tons, 33.1 %
- Belts: 620 tons, 13.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 239 tons, 5.1 %
- Armour Deck: 677 tons, 14.4 %
- Conning Tower: 19 tons, 0.4 %
Machinery: 354 tons, 7.5 %
Hull, fittings & equipment: 1,745 tons, 37.2 %
Fuel, ammunition & stores: 828 tons, 17.6 %
Miscellaneous weights: 50 tons, 1.1 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9,013 lbs / 4,088 Kg = 50.7 x 7.1 " / 180 mm shells or 2.4 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 2.4 ft / 0.7 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.22
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.545
Length to Beam Ratio: 5.57 : 1
'Natural speed' for length: 17.47 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.01 ft / 6.10 m
- Forecastle (22 %): 16.40 ft / 5.00 m
- Mid (50 %): 13.12 ft / 4.00 m
- Quarterdeck (22 %): 13.12 ft / 4.00 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 14.62 ft / 4.46 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 53.9 %
- Above water (accommodation/working, high = better): 109.0 %
Waterplane Area: 11,612 Square feet or 1,079 Square metres
Displacement factor (Displacement / loading): 129 %
Structure weight / hull surface area: 100 lbs/sq ft or 489 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 3.22
- Overall: 1.10
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
25t special underwater protection
25t winterization