Auxiliaries No Longer in Service

[Desertfox]

Exploration
4 x Uji class (1907), REFITTED

[Desertfox]

8 built, 4 SUNK, 4 REFITTED to different configuration



Uji class, Japan Exploration Ship laid down 1907

Displacement:
   700 t light; 725 t standard; 885 t normal; 1,013 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (270.00 ft / 270.00 ft) x 31.00 ft x (7.40 / 8.20 ft)
   (82.30 m / 82.30 m) x 9.45 m  x (2.26 / 2.50 m)

Armament:
      1 - 3.00" / 76.2 mm 45.0 cal gun - 13.62lbs / 6.18kg shells, 400 per gun
     Quick firing gun in deck mount, 1907 Model
     1 x Single mount on centreline, forward deck centre
      3 - 2.00" / 50.8 mm 45.0 cal guns - 4.03lbs / 1.83kg shells, 150 per gun
     Quick firing guns in deck mount, 1907 Model
     1 x Triple mount on centreline, aft deck centre
      1 raised mount
      30 - 0.30" / 7.6 mm 45.0 cal guns - 0.01lbs / 0.01kg shells, 150 per gun (marine rifles)
     Breech loading guns in deck mounts, 1907 Model
     30 x Single mounts on sides, evenly spread
      Weight of broadside 26 lbs / 12 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm         -               -
   2nd:   1.00" / 25 mm         -               -

   - Conning towers: Forward 1.00" / 25 mm, Aft 1.00" / 25 mm

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 2,161 ihp / 1,612 Kw = 17.00 kts
   Range 5,700nm at 10.00 kts
   Bunker at max displacement = 288 tons (90% coal)

Complement:
   80 - 105

Cost:
   £0.060 million / $0.241 million

Distribution of weights at normal displacement:
   Armament: 8 tons, 0.9 %
      - Guns: 8 tons, 0.9 %
   Armour: 8 tons, 0.9 %
      - Armament: 4 tons, 0.5 %
      - Conning Towers: 4 tons, 0.4 %
   Machinery: 238 tons, 26.9 %
   Hull, fittings & equipment: 320 tons, 36.2 %
   Fuel, ammunition & stores: 185 tons, 20.9 %
   Miscellaneous weights: 125 tons, 14.1 %
      - On freeboard deck: 90 tons
      - Above deck: 35 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,479 lbs / 671 Kg = 109.5 x 3.0 " / 76 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 1.5 ft / 0.4 m
   Roll period: 10.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.07
   Seaboat quality  (Average = 1.00): 1.50

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.516
   Length to Beam Ratio: 8.71 : 1
   'Natural speed' for length: 16.43 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   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:   35.00 %,  11.00 ft / 3.35 m,  9.00 ft / 2.74 m
      - Forward deck:   30.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Aft deck:   20.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Quarter deck:   15.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
      - Average freeboard:      9.28 ft / 2.83 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 91.1 %
      - Above water (accommodation/working, high = better): 119.5 %
   Waterplane Area: 5,577 Square feet or 518 Square metres
   Displacement factor (Displacement / loading): 140 %
   Structure weight / hull surface area: 40 lbs/sq ft or 196 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.18
      - Overall: 1.01
   Adequate 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

35t - 1 x short-range and 1 x long-range wireless
60t - 30 x marines
10t - 5 x person, heavy weapons team
20t - 2 x 5t boats