Torpedo-Boats and Destroyers

[The Rock Doctor]

The mosquitos of the blue, to be simmed shortly.

[The Rock Doctor]

T-1 Class Torpedo-Boat

A big batch of coastal-defence torpedo-boats. Most will found on distal stations these days.

Names may change as I contemplate the Ottoman nomenclature system.

T-1 to -6, laid down 1890
T-7 to -12, laid down 1891
T-13 to -18, laid down 1892
T-19 to -24, laid down 1893
T-25 to -30, laid down 1894
T-31 to -36, laid down 1895

Enter ship name, Enter country Enter ship type laid down 1894 (Engine 1890)

Displacement:
   200 t light; 205 t standard; 222 t normal; 236 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (178.81 ft / 175.52 ft) x 16.08 ft x (6.56 / 6.84 ft)
   (54.50 m / 53.50 m) x 4.90 m  x (2.00 / 2.09 m)

Armament:
      2 - 1.46" / 37.0 mm 45.0 cal guns - 1.56lbs / 0.71kg shells, 250 per gun
     Quick firing guns in deck mounts, 1894 Model
     2 x Single mounts on centreline, evenly spread
      Weight of broadside 3 lbs / 1 kg
      Main Torpedoes
      2 - 13.8" / 350 mm, 14.76 ft / 4.50 m torpedoes - 0.263 t each, 0.527 t total
   In 2 sets of deck mounted carriage/fixed tubes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm         -               -

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 2,011 ihp / 1,500 Kw = 20.31 kts
   Range 1,000nm at 10.00 kts
   Bunker at max displacement = 32 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   28 - 37

Cost:
   £0.025 million / $0.100 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0.7 %
      - Guns: 1 tons, 0.4 %
      - Weapons: 1 tons, 0.3 %
   Armour: 2 tons, 0.9 %
      - Armament: 2 tons, 0.9 %
   Machinery: 128 tons, 57.4 %
   Hull, fittings & equipment: 62 tons, 27.7 %
   Fuel, ammunition & stores: 23 tons, 10.1 %
   Miscellaneous weights: 7 tons, 3.2 %
      - On freeboard deck: 7 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     65 lbs / 29 Kg = 41.8 x 1.5 " / 37 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.45
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 8.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 69 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 1.92

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.420 / 0.428
   Length to Beam Ratio: 10.92 : 1
   'Natural speed' for length: 13.25 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 36
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Forward deck:   30.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Aft deck:   35.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Quarter deck:   15.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
      - Average freeboard:      8.20 ft / 2.50 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 186.4 %
      - Above water (accommodation/working, high = better): 96.3 %
   Waterplane Area: 1,759 Square feet or 163 Square metres
   Displacement factor (Displacement / loading): 28 %
   Structure weight / hull surface area: 15 lbs/sq ft or 73 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.65
      - Overall: 0.59
   Caution: Hull subject to strain in open-sea
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[The Rock Doctor]

T-37 Class Torpedo-Boat

These are larger, ocean-going boats.  Well, Mediterranean-going, anyway.  They'll work with the battlefleet.

T-37 to T-46, laid down 1896


Enter ship name, Enter country Enter ship type laid down 1896 (Engine 1890)

Displacement:
   403 t light; 415 t standard; 469 t normal; 512 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (208.99 ft / 205.71 ft) x 21.33 ft x (9.35 / 9.91 ft)
   (63.70 m / 62.70 m) x 6.50 m  x (2.85 / 3.02 m)

Armament:
      3 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 400 per gun
     Quick firing guns in deck mounts, 1896 Model
     3 x Single mounts on centreline, evenly spread
      4 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1896 Model
     4 x Single mounts on sides, aft deck forward
      Weight of broadside 11 lbs / 5 kg
      Main Torpedoes
      3 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.540 t each, 1.619 t total
   In 3 sets of deck mounted carriage/fixed tubes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm         -               -

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 2 shafts, 6,702 ihp / 5,000 Kw = 24.64 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 97 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   49 - 65

Cost:
   £0.055 million / $0.219 million

Distribution of weights at normal displacement:
   Armament: 4 tons, 0.9 %
      - Guns: 2 tons, 0.5 %
      - Weapons: 2 tons, 0.4 %
   Armour: 3 tons, 0.6 %
      - Armament: 3 tons, 0.6 %
   Machinery: 286 tons, 61.0 %
   Hull, fittings & equipment: 99 tons, 21.0 %
   Fuel, ammunition & stores: 66 tons, 14.1 %
   Miscellaneous weights: 11 tons, 2.3 %
      - On freeboard deck: 11 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     97 lbs / 44 Kg = 25.5 x 2.0 " / 50 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.66
   Metacentric height 1.1 ft / 0.3 m
   Roll period: 8.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 0.96

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.412
   Length to Beam Ratio: 9.65 : 1
   'Natural speed' for length: 14.34 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  9.84 ft / 3.00 m,  11.81 ft / 3.60 m
      - Forward deck:   20.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Aft deck:   50.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Quarter deck:   15.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Average freeboard:      8.35 ft / 2.54 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 198.6 %
      - Above water (accommodation/working, high = better): 80.4 %
   Waterplane Area: 2,700 Square feet or 251 Square metres
   Displacement factor (Displacement / loading): 18 %
   Structure weight / hull surface area: 19 lbs/sq ft or 93 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.49
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[The Rock Doctor]

T-47 Class Torpedo-Boat

Advances in engine technology allowed for a 20% increase in powerplant output in the basic T-37 hull.  This provided a whopping one knot of additional speed.  Freeboard is also slightly increased.

This class also works with the fleet.

Note that I'm paying 0.414 BP for T-57 and onward, for reasons my spreadsheet does not explain.  Oh well.

T-47 to T-56, laid down 1898
T-57 to T-61, laid down 1900
T-62 to T-71, laid down 1901
T-72 to T-76, laid down 1902

Enter ship name, Enter country Enter ship type laid down 1898 (Engine 1900)

Displacement:
   411 t light; 423 t standard; 469 t normal; 505 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (208.99 ft / 205.71 ft) x 21.33 ft x (9.35 / 9.82 ft)
   (63.70 m / 62.70 m) x 6.50 m  x (2.85 / 2.99 m)

Armament:
      3 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 400 per gun
     Quick firing guns in deck mounts, 1898 Model
     3 x Single mounts on centreline, evenly spread
      4 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1898 Model
     4 x Single mounts on sides, aft deck forward
      Weight of broadside 11 lbs / 5 kg
      Main Torpedoes
      3 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.540 t each, 1.619 t total
   In 3 sets of deck mounted carriage/fixed tubes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 8,043 ihp / 6,000 Kw = 25.72 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 82 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   49 - 65

Cost:
   £0.055 million / $0.219 million

Distribution of weights at normal displacement:
   Armament: 4 tons, 0.9 %
      - Guns: 2 tons, 0.5 %
      - Weapons: 2 tons, 0.4 %
   Armour: 3 tons, 0.6 %
      - Armament: 3 tons, 0.6 %
   Machinery: 285 tons, 60.7 %
   Hull, fittings & equipment: 107 tons, 22.9 %
   Fuel, ammunition & stores: 58 tons, 12.3 %
   Miscellaneous weights: 12 tons, 2.6 %
      - On freeboard deck: 12 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     104 lbs / 47 Kg = 27.2 x 2.0 " / 50 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.58
   Metacentric height 1.1 ft / 0.3 m
   Roll period: 8.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.02
   Seaboat quality  (Average = 1.00): 0.97

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.410
   Length to Beam Ratio: 9.65 : 1
   'Natural speed' for length: 14.34 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 51
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  10.50 ft / 3.20 m,  12.47 ft / 3.80 m
      - Forward deck:   20.00 %,  8.53 ft / 2.60 m,  8.53 ft / 2.60 m
      - Aft deck:   50.00 %,  8.53 ft / 2.60 m,  8.53 ft / 2.60 m
      - Quarter deck:   15.00 %,  8.53 ft / 2.60 m,  8.53 ft / 2.60 m
      - Average freeboard:      9.00 ft / 2.74 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 197.7 %
      - Above water (accommodation/working, high = better): 87.1 %
   Waterplane Area: 2,700 Square feet or 251 Square metres
   Displacement factor (Displacement / loading): 19 %
   Structure weight / hull surface area: 20 lbs/sq ft or 96 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.94
      - Overall: 0.57
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[The Rock Doctor]

T-77 Class Torpedo-Boat

The first class of turbine-powered torpedo-boats for the Ottomans.

T-77, laid down 1904 

Enter ship name, Enter country Enter ship type laid down 1905

Displacement:
   499 t light; 519 t standard; 576 t normal; 621 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229.33 ft / 226.05 ft) x 22.64 ft x (9.84 / 10.34 ft)
   (69.90 m / 68.90 m) x 6.90 m  x (3.00 / 3.15 m)

Armament:
      2 - 3.46" / 88.0 mm 40.0 cal guns - 19.93lbs / 9.04kg shells, 300 per gun
     Quick firing guns in deck mounts, 1905 Model
     2 x Single mounts on centreline, evenly spread
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 300 per gun
     Quick firing guns in deck mounts, 1905 Model
     2 x Single mounts on centreline, aft deck forward
      4 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1905 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 48 lbs / 22 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm         -               -
   2nd:   0.39" / 10 mm         -               -

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 10,000 shp / 7,460 Kw = 26.62 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 102 tons (90% coal)
     Caution: Delicate, lightweight machinery

Complement:
   58 - 76

Cost:
   £0.064 million / $0.257 million

Distribution of weights at normal displacement:
   Armament: 8 tons, 1.4 %
      - Guns: 8 tons, 1.4 %
   Armour: 4 tons, 0.6 %
      - Armament: 4 tons, 0.6 %
   Machinery: 319 tons, 55.4 %
   Hull, fittings & equipment: 148 tons, 25.8 %
   Fuel, ammunition & stores: 76 tons, 13.3 %
   Miscellaneous weights: 20 tons, 3.5 %
      - Hull above water: 20 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     165 lbs / 75 Kg = 7.9 x 3.5 " / 88 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.36
   Metacentric height 0.9 ft / 0.3 m
   Roll period: 9.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.17
   Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
   Hull has raised forecastle, rise aft of midbreak, low quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.400 / 0.410
   Length to Beam Ratio: 9.99 : 1
   'Natural speed' for length: 15.03 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 61
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   15.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Forward deck:   10.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Aft deck:   15.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Quarter deck:   60.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Average freeboard:      10.24 ft / 3.12 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 187.4 %
      - Above water (accommodation/working, high = better): 130.3 %
   Waterplane Area: 3,150 Square feet or 293 Square metres
   Displacement factor (Displacement / loading): 34 %
   Structure weight / hull surface area: 23 lbs/sq ft or 110 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.51
      - Overall: 0.58
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform