River Crafts

[Nobody]

Binnenschiff-class, German lake & river gunboat laid down 1896
19 ships in class

Displacement:
   90 t light; 99 t standard; 106 t normal; 112 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (98,43 ft / 98,43 ft) x 19,69 ft x (3,28 / 3,42 ft)
   (30,00 m / 30,00 m) x 6,00 m  x (1,00 / 1,04 m)

Armament:
      2 - 3,46" / 88,0 mm 30,0 cal guns - 15,43lbs / 7,00kg shells, 150 per gun
     Quick firing guns in deck mounts, 1896 Model
     2 x Single mounts on centreline, aft evenly spread
      1 - 4,13" / 105 mm 40,0 cal gun - 38,36lbs / 17,40kg shells, 150 per gun
     Quick firing gun in deck mount, 1896 Model
     1 x Single mount on centreline, forward deck centre
      1 - 1,46" / 37,0 mm 20,0 cal gun - 0,99lbs / 0,45kg shells, 1.500 per gun
     Breech loading gun in deck mount, 1896 Model
     1 x Single mount on centreline amidships (forward deck)
      1 raised mount
      Weight of broadside 70 lbs / 32 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0,39" / 10 mm     63,98 ft / 19,50 m   5,31 ft / 1,62 m
   Ends:   0,31" / 8 mm     34,42 ft / 10,49 m   5,31 ft / 1,62 m
     Main Belt covers 100% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,59" / 15 mm         -               -
   2nd:   0,59" / 15 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 0,47" / 12 mm
   Forecastle: 0,00" / 0 mm  Quarter deck: 0,39" / 10 mm

   - Conning towers: Forward 1,18" / 30 mm, Aft 0,00" / 0 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 120 ihp / 89 Kw = 10,05 kts
   Range 1.000nm at 8,00 kts
   Bunker at max displacement = 12 tons (100% coal)

Complement:
   16 - 21

Cost:
   £0,009 million / $0,035 million

Distribution of weights at normal displacement:
   Armament: 10 tons, 9,6%
      - Guns: 10 tons, 9,6%
   Armour: 24 tons, 22,5%
      - Belts: 8 tons, 7,7%
      - Armament: 4 tons, 3,8%
      - Armour Deck: 11 tons, 10,4%
      - Conning Tower: 1 tons, 0,5%
   Machinery: 20 tons, 18,8%
   Hull, fittings & equipment: 37 tons, 34,4%
   Fuel, ammunition & stores: 16 tons, 14,7%
   Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     172 lbs / 78 Kg = 8,3 x 3,5 " / 88 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,71
   Metacentric height 1,1 ft / 0,3 m
   Roll period: 8,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,14
   Seaboat quality  (Average = 1.00): 1,15

Hull form characteristics:
   Hull has raised forecastle, raised quarterdeck ,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0,584 / 0,589
   Length to Beam Ratio: 5,00 : 1
   'Natural speed' for length: 9,92 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 61
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00%,  6,56 ft / 2,00 m,  6,56 ft / 2,00 m
      - Forward deck:   30,00%,  3,28 ft / 1,00 m,  3,28 ft / 1,00 m
      - Aft deck:   35,00%,  3,28 ft / 1,00 m,  3,28 ft / 1,00 m
      - Quarter deck:   15,00%,  4,92 ft / 1,50 m,  4,92 ft / 1,50 m
      - Average freeboard:      4,18 ft / 1,28 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 89,7%
      - Above water (accommodation/working, high = better): 54,5%
   Waterplane Area: 1.396 Square feet or 130 Square metres
   Displacement factor (Displacement / loading): 118%
   Structure weight / hull surface area: 25 lbs/sq ft or 122 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,73
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

Viktoriasee (4), Tanganjikasee(4), China(3), Europe(8)