Minador y el buscaminas (Minelayers and minesweepers)

[olekit24]

List of mine warfire ships

[Darman]

Guardia, Iberia Minelayer laid down 1910 (Engine 1906)

Displacement:
   620 t light; 637 t standard; 724 t normal; 794 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (219.82 ft / 219.82 ft) x 25.92 ft x (9.84 / 10.55 ft)
   (67.00 m / 67.00 m) x 7.90 m  x (3.00 / 3.22 m)

Armament:
      2 - 2.24" / 57.0 mm 45.0 cal guns - 5.70lbs / 2.58kg shells, 400 per gun
     Quick firing guns in deck mounts, 1910 Model
     2 x Single mounts on centreline ends, evenly spread
      Weight of broadside 11 lbs / 5 kg

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 1 shaft, 3,751 shp / 2,798 Kw = 20.00 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 157 tons

Complement:
   69 - 90

Cost:
   £0.056 million / $0.226 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0.3 %
   Machinery: 244 tons, 33.6 %
   Hull, fittings & equipment: 244 tons, 33.7 %
   Fuel, ammunition & stores: 104 tons, 14.4 %
   Miscellaneous weights: 130 tons, 18.0 %
      - Hull below water: 10 tons
      - Hull above water: 10 tons
      - On freeboard deck: 100 tons
      - Above deck: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     727 lbs / 330 Kg = 128.7 x 2.2 " / 57 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 0.8 ft / 0.3 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 82 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.452 / 0.463
   Length to Beam Ratio: 8.48 : 1
   'Natural speed' for length: 14.83 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %,  11.48 ft / 3.50 m,  10.50 ft / 3.20 m
      - Forward deck:   30.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Aft deck:   35.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Quarter deck:   15.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
      - Average freeboard:      10.58 ft / 3.22 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 113.5 %
      - Above water (accommodation/working, high = better): 100.5 %
   Waterplane Area: 3,469 Square feet or 322 Square metres
   Displacement factor (Displacement / loading): 116 %
   Structure weight / hull surface area: 36 lbs/sq ft or 174 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 3.10
      - 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

- 10 tons for additional damage control and pumps (hull below water)
- 10 tons for climate control (hull above water)
- 100 tons for mines and mine handling gear (on freeboard deck)
- 10 tons for short range wireless (above deck)

[Darman]

Guardia , Iberia Minesweeper laid down 1910 (Engine 1906)

Displacement:
   136 t light; 140 t standard; 163 t normal; 181 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (82.02 ft / 82.02 ft) x 19.19 ft x (7.05 / 7.67 ft)
   (25.00 m / 25.00 m) x 5.85 m  x (2.15 / 2.34 m)

Armament:
      1 - 1.85" / 47.0 mm 45.0 cal gun - 3.19lbs / 1.45kg shells, 400 per gun
     Quick firing gun in deck mount, 1910 Model
     1 x Single mount on centreline forward
      Weight of broadside 3 lbs / 1 kg

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 1 shaft, 329 shp / 246 Kw = 12.00 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 41 tons

Complement:
   22 - 29

Cost:
   £0.008 million / $0.032 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0.4 %
   Machinery: 21 tons, 13.1 %
   Hull, fittings & equipment: 39 tons, 24.2 %
   Fuel, ammunition & stores: 27 tons, 16.3 %
   Miscellaneous weights: 75 tons, 46.0 %
      - Hull below water: 20 tons
      - On freeboard deck: 45 tons
      - Above deck: 10 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     325 lbs / 148 Kg = 102.7 x 1.9 " / 47 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 10.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 58 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 1.16

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.514 / 0.525
   Length to Beam Ratio: 4.27 : 1
   'Natural speed' for length: 9.06 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   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 %,  7.38 ft / 2.25 m,  6.56 ft / 2.00 m
      - Forward deck:   30.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Aft deck:   35.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Quarter deck:   15.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Average freeboard:      6.63 ft / 2.02 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 58.4 %
      - Above water (accommodation/working, high = better): 58.2 %
   Waterplane Area: 1,024 Square feet or 95 Square metres
   Displacement factor (Displacement / loading): 136 %
   Structure weight / hull surface area: 23 lbs/sq ft or 111 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.82
      - Longitudinal: 5.99
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is cramped

- 20 tons for additional damage control and pumps (hull below water)
- 45 tons for mine sweeping gear (on freeboard deck)
- 10 tons for short range wireless (above deck)