Don't forget about the ice.
Something like this?
PF33, Nordmark Polar Frigate laid down 1933
Displacement:
944 t light; 991 t standard; 1,321 t normal; 1,585 t full load
Dimensions: Length overall / water x beam x draught
234.06 ft / 230.00 ft x 34.00 ft x 10.75 ft (normal load)
71.34 m / 70.10 m x 10.36 m x 3.28 m
Armament:
4 - 4.33" / 110 mm guns (2x2 guns), 40.61lbs / 18.42kg shells, 1933 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
8 - 1.46" / 37.0 mm guns (2x4 guns), 1.55lbs / 0.70kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1933 Model
Machine guns in deck mounts
on side, evenly spread
8 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1933 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 177 lbs / 80 kg
Shells per gun, main battery: 200
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.15" / 29 mm 230.00 ft / 70.10 m 12.00 ft / 3.66 m
Ends: Unarmoured
Main Belt covers 154 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 2.00" / 51 mm - -
3rd: 1.00" / 25 mm - -
- Conning tower: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 5,815 shp / 4,338 Kw = 20.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 594 tons
Complement:
109 - 142
Cost:
£0.356 million / $1.425 million
Distribution of weights at normal displacement:
Armament: 22 tons, 1.7 %
Armour: 144 tons, 10.9 %
- Belts: 117 tons, 8.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 1.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 8 tons, 0.6 %
Machinery: 169 tons, 12.8 %
Hull, fittings & equipment: 518 tons, 39.2 %
Fuel, ammunition & stores: 378 tons, 28.6 %
Miscellaneous weights: 90 tons, 6.8 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,801 lbs / 1,271 Kg = 69.0 x 4.3 " / 110 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.2 ft / 0.4 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.44
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.550
Length to Beam Ratio: 6.76 : 1
'Natural speed' for length: 15.17 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.00 ft / 7.01 m
- Forecastle (35 %): 20.00 ft / 6.10 m
- Mid (40 %): 20.00 ft / 6.10 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: 15.92 ft / 4.85 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 63.4 %
- Above water (accommodation/working, high = better): 126.4 %
Waterplane Area: 5,458 Square feet or 507 Square metres
Displacement factor (Displacement / loading): 176 %
Structure weight / hull surface area: 48 lbs/sq ft or 233 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.81
- Longitudinal: 6.67
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
PF33 1-12 built
Misc Weight is:
10tons Sonar, 20tons ASW or Mines, 30tons Stores, 30tons Climatisation