Large Fleet-tender Baltic Confederation

[ledeper]

Hjaelperen, Baltic Confederation  Large Fleet-tender  laid down 1911

Displacement:
   12.904 t light; 13.303 t standard; 19.600 t normal; 24.637 t full load

Dimensions: Length overall / water x beam x draught
   548,20 ft / 541,34 ft x 75,46 ft x 19,69 ft (normal load)
   167,09 m / 165,00 m x 23,00 m  x 6,00 m

Armament:
      1 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1911 Model
     Quick firing gun in deck mount
     on centreline forward
      2 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1911 Model
     Quick firing guns in deck mounts
     on centreline, all amidships
   Weight of broadside 74 lbs / 33 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Ends:   Unarmoured

   - Torpedo Bulkhead:
      1,75" / 44 mm   351,87 ft / 107,25 m   18,07 ft / 5,51 m

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Electric motors, 2 shafts, 25.089 ihp / 18.716 Kw = 20,00 kts
   Range 16.000nm at 14,00 kts
   Bunker at max displacement = 11.334 tons (100% coal)
Complement:
   827 - 1.076

Cost:
   £0,693 million / $2,771 million

Distribution of weights at normal displacement:
   Armament: 9 tons, 0,0 %
   Armour: 412 tons, 2,1 %
      - Belts: 0 tons, 0,0 %
      - Torpedo bulkhead: 412 tons, 2,1 %
      - Armament: 0 tons, 0,0 %
      - Armour Deck: 0 tons, 0,0 %
      - Conning Tower: 0 tons, 0,0 %
   Machinery: 1.667 tons, 8,5 %
   Hull, fittings & equipment: 4.816 tons, 24,6 %
   Fuel, ammunition & stores: 6.696 tons, 34,2 %
   Miscellaneous weights: 6.000 tons, 30,6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     33.101 lbs / 15.014 Kg = 1.034,4 x 4,0 " / 102 mm shells or 5,4 torpedoes
   Stability (Unstable if below 1.00): 1,24
   Metacentric height 4,9 ft / 1,5 m
   Roll period: 14,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 80 %
         - Recoil effect (Restricted arc if above 1.00): 0,00
   Seaboat quality  (Average = 1.00): 1,59

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,853
   Length to Beam Ratio: 7,17 : 1
   'Natural speed' for length: 23,27 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 15,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      25,59 ft / 7,80 m
      - Forecastle (20 %):   16,27 ft / 4,96 m
      - Mid (50 %):      16,27 ft / 4,96 m
      - Quarterdeck (15 %):   16,27 ft / 4,96 m
      - Stern:      16,27 ft / 4,96 m
      - Average freeboard:   17,02 ft / 5,19 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84,6 %
      - Above water (accommodation/working, high = better): 139,8 %
   Waterplane Area: 37.290 Square feet or 3.464 Square metres
   Displacement factor (Displacement / loading): 200 %
   Structure weight / hull surface area: 99 lbs/sq ft or 485 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1,13
      - Longitudinal: 0,96
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   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

Misc. Weights(6,000 Tons):
50 Tons Wireless Set and Aerials(2)
50 Tons Ships Boats/Barges
350 Tons for Cranes and Access Hoists
100 Tons Special Fittings
5450 Tons for Repair and Depot Accomedations

7810 Tons Stores(as Coal Load )
3.524 Tons Coal for ship use(Range:6.500nm at 14,00 kts)