Liapur class

Liapur class, Octavia Ice breaker laid down 1899
== Displacement: ==
               785 t light; 806 t standard; 907 t normal; 988 t full load
=== Dimensions: Length (overall / waterline) x beam x draught (normal/deep) ===
               (145,00 ft / 130,00 ft) x 30,00 ft x (16,00 / 17,08 ft)
               (44,20 m / 39,62 m) x 9,14 m  x (4,88 / 5,21 m)
== Armament: ==
     1 - 4,00" / 102 mm 45,0 cal gun - 32,27lbs / 14,64kg shells, 170 per gun
                 Breech loading gun in deck mount, 1899 Model
                 1 x Single mount on centreline forward
     Weight of broadside 32 lbs / 15 kg
== Armour: ==
  - Belts:                Width (max)           Length (avg)                         Height (avg)
               Main:      2,50" / 64 mm        130,00 ft / 39,62 m              15,00 ft / 4,57 m
                 Main Belt covers 154 % of normal length
===   - Torpedo Bulkhead - Strengthened structural bulkheads: ===
                              2,00" / 51 mm        130,00 ft / 39,62 m              14,00 ft / 4,27 m
               Beam between torpedo bulkheads 30,00 ft / 9,14 m
===   - Gun armour:    ===
Face (max)             Other gunhouse (avg)          Barbette/hoist (max)
               Main:      2,00" / 51 mm              -                                             -
===   - Armoured deck - multiple decks: ===
               For and Aft decks: 2,00" / 51 mm
               Forecastle: 1,00" / 25 mm  Quarter deck: 1,00" / 25 mm
===   - Conning towers: ===
Forward 2,00" / 51 mm, Aft 0,00" / 0 mm
== Machinery: ==
               Coal fired boilers, complex reciprocating steam engines,
               Direct drive, 4 shafts, 375 ihp / 280 Kw = 10,00 kts
               Range 5.000nm at 8,00 kts
               Bunker at max displacement = 182 tons (100% coal)
== Complement: ==
               82 - 107
== Cost: ==
               £0,037 million / $0,150 million
=== Distribution of weights at normal displacement: ===
               Armament: 5 tons, 0,6 %
                  - Guns: 5 tons, 0,6 %
               Armour: 412 tons, 45,4 %
                  - Belts: 180 tons, 19,9 %
                  - Torpedo bulkhead: 135 tons, 14,8 %
                  - Armament: 5 tons, 0,5 %
                  - Armour Deck: 89 tons, 9,8 %
                  - Conning Tower: 4 tons, 0,4 %
               Machinery: 60 tons, 6,6 %
               Hull, fittings & equipment: 158 tons, 17,4 %
               Fuel, ammunition & stores: 122 tons, 13,5 %
               Miscellaneous weights: 150 tons, 16,5 %
                  - On freeboard deck: 100 tons
                  - Above deck: 50 tons
=== Overall survivability and seakeeping ability: ===
               Survivability (Non-critical penetrating hits needed to sink ship):
                 4.265 lbs / 1.935 Kg = 133,3 x 4,0 " / 102 mm shells or 3,3 torpedoes
               Stability (Unstable if below 1.00): 1,09
               Metacentric height 1,0 ft / 0,3 m
               Roll period: 12,8 seconds
               Steadiness             - As gun platform (Average = 50 %): 100 %
                                              - Recoil effect (Restricted arc if above 1.00): 0,08
               Seaboat quality (Average = 1.00): 2,00
=== Hull form characteristics: ===
               Hull has a flush deck,
                 a ram bow and a round stern
               Block coefficient (normal/deep): 0,509 / 0,519
               Length to Beam Ratio: 4,33 : 1
               'Natural speed' for length: 11,40 kts
               Power going to wave formation at top speed: 46 %
               Trim (Max stability = 0, Max steadiness = 100): 50
               Bow angle (Positive = bow angles forward): 19,00 degrees
               Stern overhang: -10,00 ft / -3,05 m
               Freeboard (% = length of deck as a percentage of waterline length):
                                                              Fore end,               Aft end
                  - Forecastle:       20,00 %,  15,00 ft / 4,57 m,  15,00 ft / 4,57 m
                  - Forward deck: 30,00 %,  15,00 ft / 4,57 m,  15,00 ft / 4,57 m
                  - Aft deck:          35,00 %,  15,00 ft / 4,57 m,  15,00 ft / 4,57 m
                  - Quarter deck:  15,00 %,  15,00 ft / 4,57 m,  15,00 ft / 4,57 m
                  - Average freeboard:                        15,00 ft / 4,57 m
=== Ship space, strength and comments: ===
               Space      - Hull below water (magazines/engines, low = better): 24,8 %
                              - Above water (accommodation/working, high = better): 91,3 %
               Waterplane Area: 2.620 Square feet or 243 Square metres
               Displacement factor (Displacement / loading): 130 %
               Structure weight / hull surface area: 47 lbs/sq ft or 231 Kg/sq metre
               Hull strength (Relative):
                              - Cross-sectional: 0,90
                              - Longitudinal: 24,06
                              - Overall: 1,25
               Excellent machinery, storage, compartmentation space
               Adequate accommodation and workspace room
               Ship has slow, easy roll, a good, steady gun platform
               Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Category:Ship
Category:Auxiliary
Category:Octavia