TB tender

[P3D]

A strange TB tender, admittedly influenced by the ill-fated attack on the 'peace fleet', organized by mafioso straordinare Don Agrival Mars. Can carry up to 10 (generally 8) 100t or smaller torpedo boats in the hull, which are launched by a slip in the middle of the stern. The same boats are drawn int othe hold by a winch.

A secret detail, and hopefully unknown to foreign naval intelligence services, that three of the torpedo boats are rather small submarines.

Orange TB Tender, laid down in 1904

Displacement:
   6,603 t light; 6,798 t standard; 9,032 t normal; 10,819 t full load

Dimensions: Length overall / water x beam x draught
   403.25 ft / 393.70 ft x 78.74 ft x 11.48 ft (normal load)
   122.91 m / 120.00 m x 24.00 m  x 3.50 m

Armament:
      2 - 3.94" / 100 mm guns in single mounts, 30.51lbs / 13.84kg shells, 1904 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
      4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1904 Model
     Quick firing guns in deck mounts
     on centreline, evenly spread
      4 - 0.39" / 10.0 mm guns in single mounts, 0.03lbs / 0.01kg shells, 1904 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 113 lbs / 51 kg
   Shells per gun, main battery: 200

Machinery:
   Coal and oil fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 10,094 ihp / 7,530 Kw = 17.40 kts
   Range 12,000nm at 12.00 kts
   Bunker at max displacement = 4,021 tons (75% coal)

Complement:
   463 - 602

Cost:
   £0.446 million / $1.783 million

Distribution of weights at normal displacement:
   Armament: 14 tons, 0.2 %
   Machinery: 1,448 tons, 16.0 %
   Hull, fittings & equipment: 3,140 tons, 34.8 %
   Fuel, ammunition & stores: 2,429 tons, 26.9 %
   Miscellaneous weights: 2,000 tons, 22.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     22,596 lbs / 10,249 Kg = 740.6 x 3.9 " / 100 mm shells or 2.6 torpedoes
   Stability (Unstable if below 1.00): 1.48
   Metacentric height 6.8 ft / 2.1 m
   Roll period: 12.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 86 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck
     and transom stern
   Block coefficient: 0.888
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 23.14 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 43
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26.25 ft / 8.00 m
      - Forecastle (20 %):   22.97 ft / 7.00 m
      - Mid (50 %):      22.97 ft / 7.00 m
      - Quarterdeck (15 %):   22.97 ft / 7.00 m
      - Stern:      22.97 ft / 7.00 m
      - Average freeboard:   23.23 ft / 7.08 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 78.1 %
      - Above water (accommodation/working, high = better): 287.9 %
   Waterplane Area: 30,477 Square feet or 2,831 Square metres
   Displacement factor (Displacement / loading): 180 %
   Structure weight / hull surface area: 84 lbs/sq ft or 409 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 2.30
      - Overall: 1.04
   Hull space for machinery, storage, compartmentation is excellent
   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

[P3D]

The TB that goes with the ship. SS does not allow for any higher speed - they should be capable of ~29kts.


Orange TB laid down 1904 (Engine 1909)

Displacement:
   100 t light; 103 t standard; 115 t normal; 124 t full load

Dimensions: Length overall / water x beam x draught
   102.28 ft / 99.00 ft x 14.00 ft x 5.00 ft (normal load)
   31.18 m / 30.18 m x 4.27 m  x 1.52 m

Armament:
      1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1904 Model
     Quick firing gun in deck mount
     on centreline forward
      2 - 0.40" / 10.2 mm guns in single mounts, 0.03lbs / 0.01kg shells, 1904 Model
     Machine guns in deck mounts
     on side, all amidships
   Weight of broadside 14 lbs / 6 kg
   Shells per gun, main battery: 100
   2 - 18.1" / 460.0001 mm above water torpedoes

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 5,877 shp / 4,385 Kw = 25.00 kts
   Range 180nm at 20.00 kts
   Bunker at max displacement = 21 tons
     Caution: Delicate, lightweight machinery

Complement:
   16 - 22

Cost:
   £0.014 million / $0.057 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 1.5 %
   Machinery: 67 tons, 58.6 %
   Hull, fittings & equipment: 29 tons, 25.2 %
   Fuel, ammunition & stores: 15 tons, 12.9 %
   Miscellaneous weights: 2 tons, 1.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     22 lbs / 10 Kg = 1.6 x 3.0 " / 76 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 0.4 ft / 0.1 m
   Roll period: 9.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 10 %
         - Recoil effect (Restricted arc if above 1.00): 0.12
   Seaboat quality  (Average = 1.00): 0.03

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.581
   Length to Beam Ratio: 7.07 : 1
   'Natural speed' for length: 9.95 kts
   Power going to wave formation at top speed: 86 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      7.55 ft / 2.30 m
      - Forecastle (20 %):   6.23 ft / 1.90 m
      - Mid (50 %):      5.25 ft / 1.60 m
      - Quarterdeck (15 %):   5.25 ft / 1.60 m
      - Stern:      5.25 ft / 1.60 m
      - Average freeboard:   5.70 ft / 1.74 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 201.8 %
      - Above water (accommodation/working, high = better): 16.9 %
   Waterplane Area: 996 Square feet or 92 Square metres
   Displacement factor (Displacement / loading): 21 %
   Structure weight / hull surface area: 16 lbs/sq ft or 79 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.51
      - Longitudinal: 3.13
      - Overall: 0.61
   Hull space for machinery, storage, compartmentation is extremely poor
   Room for accommodation and workspaces is extremely poor
   Ship has quick, lively roll, not a steady gun platform
   Caution: Lacks seaworthiness - very limited seakeeping ability