III. (d) Kaufmannjägers (Merchant Hunters)

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III. Korvetten (Avisos).
..(d) Kaufmannjaegers (Merchant Hunters).
.....SMS Orion
.....SMS Herkules

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Orion class

SMS Orion - cancelled prior to lay-down, 1909
SMS Herkules - cancelled prior to lay-down, 1909
SMS Perseus - cancelled
SMS Bärenhüter - cancelled
SMS Schlangenträger - cancelled
SMS KJ-6 - cancelled

DKB Kaufmannjaeger laid down 1908 (Engine 1909)

Displacement:
   3,086 t light; 3,189 t standard; 3,850 t normal; 4,380 t full load

Dimensions: Length overall / water x beam x draught
   396.98 ft / 393.70 ft x 39.37 ft x 16.40 ft (normal load)
   121.00 m / 120.00 m x 12.00 m  x 5.00 m

Armament:
      2 - 5.91" / 150 mm guns in single mounts, 99.21lbs / 45.00kg shells, 1901 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread
      4 - 3.46" / 88.0 mm guns in single mounts, 22.05lbs / 10.00kg shells, 1900 Model
     Quick firing guns in deck mounts
     on side ends, evenly spread
      4 - 0.30" / 7.7 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1908 Model
     Machine guns in deck mounts
     on side, evenly spread

   Weight of broadside 287 lbs / 130 kg
   Shells per gun, main battery: 150

   4 - 17.7" / 450 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:      0.79" / 20 mm   328.08 ft / 100.00 m   13.12 ft / 4.00 m
   Ends:      Unarmoured
     Main Belt covers 128 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:      1.97" / 50 mm   0.79" / 20 mm      0.79" / 20 mm
   2nd:      0.79" / 20 mm         -               -

   - Armour deck: 0.79" / 20 mm, Conning tower: 1.97" / 50 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 28,500 shp / 21,261 Kw = 27.05 kts
   Range 10,500nm at 10.00 kts (Bunkerage = 1,191 tons)

Complement:
   243 - 317

Cost:
   £0.332 million / $1.328 million

Distribution of weights at normal displacement:
   Armament: 36 tons, 0.9 %
   Armour: 319 tons, 8.3 %
      - Belts: 136 tons, 3.5 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 17 tons, 0.4 %
      - Armour Deck: 155 tons, 4.0 %
      - Conning Tower: 10 tons, 0.3 %
   Machinery: 1,384 tons, 35.9 %
   Hull, fittings & equipment: 1,298 tons, 33.7 %
   Fuel, ammunition & stores: 765 tons, 19.9 %
   Miscellaneous weights: 50 tons, 1.3 %
      - 20 tons, rescue equipment
      - 20 tons, cargo space
      - 10 tons, Markoni room

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,225 lbs / 1,463 Kg = 31.3 x 5.9 " / 150 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 2.1 ft / 0.6 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0.22
   Seaboat quality  (Average = 1.00): 1.54

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.530
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 59 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   Bow angle (Positive = bow angles forward): -5.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:         26.25 ft / 8.00 m
      - Forecastle (17 %):      21.33 ft / 6.50 m
      - Mid (44 %):      19.69 ft / 6.00 m (13.12 ft / 4.00 m aft of break)
      - Quarterdeck (15 %):   13.12 ft / 4.00 m
      - Stern:         13.12 ft / 4.00 m
      - Average freeboard:      16.85 ft / 5.13 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 125.3 %
      - Above water (accommodation/working, high = better): 116.7 %
   Waterplane Area: 10,617 Square feet or 986 Square metres
   Displacement factor (Displacement / loading): 112 %
   Structure weight / hull surface area: 62 lbs/sq ft or 303 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.61
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather