Iberian TBD-1911 (1,000 tons)

[miketr]

TBD-1911, Iberia Torpedo Boat laid down 1911 (Engine 1909)

Displacement:
   1,000 t light; 1,046 t standard; 1,192 t normal; 1,309 t full load

Dimensions: Length overall / water x beam x draught
   280.00 ft / 280.00 ft x 27.50 ft x 11.00 ft (normal load)
   85.34 m / 85.34 m x 8.38 m  x 3.35 m

Armament:
      3 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1911 Model
     Breech loading guns in deck mounts
     on centreline ends, majority aft, 2 raised mounts - superfiring
      4 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1911 Model
     Quick firing guns in deck mounts
     on side, all amidships, 2 raised mounts - superfiring
   Weight of broadside 121 lbs / 55 kg
   Shells per gun, main battery: 300
   8 - 20.0" / 508 mm above water torpedoes

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

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 21,500 shp / 16,039 Kw = 29.05 kts
   Range 4,500nm at 10.00 kts
   Bunker at max displacement = 263 tons (80% coal)

Complement:
   100 - 131

Cost:
   £0.138 million / $0.553 million

Distribution of weights at normal displacement:
   Armament: 15 tons, 1.3 %
   Armour: 10 tons, 0.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 10 tons, 0.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 646 tons, 54.2 %
   Hull, fittings & equipment: 302 tons, 25.3 %
   Fuel, ammunition & stores: 191 tons, 16.1 %
   Miscellaneous weights: 27 tons, 2.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     272 lbs / 123 Kg = 7.7 x 4.1 " / 105 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 11.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.24
   Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
   Hull has raised forecastle
   Block coefficient: 0.493
   Length to Beam Ratio: 10.18 : 1
   'Natural speed' for length: 16.73 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22.00 ft / 6.71 m
      - Forecastle (20 %):   21.00 ft / 6.40 m (12.10 ft / 3.69 m aft of break)
      - Mid (50 %):      12.10 ft / 3.69 m
      - Quarterdeck (15 %):   12.10 ft / 3.69 m
      - Stern:      12.10 ft / 3.69 m
      - Average freeboard:   13.96 ft / 4.26 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 188.1 %
      - Above water (accommodation/working, high = better): 41.2 %
   Waterplane Area: 5,096 Square feet or 473 Square metres
   Displacement factor (Displacement / loading): 53 %
   Structure weight / hull surface area: 26 lbs/sq ft or 127 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.81
      - Overall: 0.59
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is extremely poor
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

Short range radio 10 tons, Eight 20" torpedos (3x2 & 2x1) 8 tons and 9 tons construction reserve

[The Rock Doctor]

I generally like her - but an explanation of the torpedo layout would be helpful.

[miketr]

Its a typo...Should be 2x3 & 2x1, two triple mounts ans two single mounts.  The triples are centerline while the singles are one on either side of the forecastle.  I912 engine tech would be a better design of course.

Michael

[miketr]

A new design with 1912 Engine Tech...

TBD-1912, Iberia Torpedo Boat Destroyer laid down 1912

Displacement:
   995 t light; 1,039 t standard; 1,160 t normal; 1,256 t full load

Dimensions: Length overall / water x beam x draught
   295.28 ft / 295.28 ft x 29.53 ft x 9.84 ft (normal load)
   90.00 m / 90.00 m x 9.00 m  x 3.00 m

Armament:
      4 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1912 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      2 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1912 Model
     Breech loading guns in deck mounts
     on side, all amidships
   Weight of broadside 149 lbs / 68 kg
   Shells per gun, main battery: 250
   6 - 20.0" / 508 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm         -               -
   2nd:   0.98" / 25 mm         -               -

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 2 shafts, 23,500 shp / 17,531 Kw = 30.05 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 217 tons (100% coal)

Complement:
   99 - 129

Cost:
   £0.137 million / $0.550 million

Distribution of weights at normal displacement:
   Armament: 19 tons, 1.6 %
   Armour: 11 tons, 0.9 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 11 tons, 0.9 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 621 tons, 53.6 %
   Hull, fittings & equipment: 323 tons, 27.9 %
   Fuel, ammunition & stores: 165 tons, 14.2 %
   Miscellaneous weights: 21 tons, 1.8 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     315 lbs / 143 Kg = 8.9 x 4.1 " / 105 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.35
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 10.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.22
   Seaboat quality  (Average = 1.00): 1.10

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.473
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 17.18 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 65
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      18.04 ft / 5.50 m
      - Forecastle (20 %):   15.58 ft / 4.75 m
      - Mid (50 %):      12.30 ft / 3.75 m
      - Quarterdeck (15 %):   12.30 ft / 3.75 m
      - Stern:      12.30 ft / 3.75 m
      - Average freeboard:   13.65 ft / 4.16 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 187.9 %
      - Above water (accommodation/working, high = better): 81.2 %
   Waterplane Area: 5,671 Square feet or 527 Square metres
   Displacement factor (Displacement / loading): 52 %
   Structure weight / hull surface area: 28 lbs/sq ft or 136 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.22
      - Overall: 0.58
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform

Short range radio 10 tons, Six 20" torpedos (2x3) 6 tons and 5 tons construction reserve

[The Rock Doctor]

That's pretty good...

[Sachmle]

A new design with 1912 Engine Tech...

TBD-1912, Iberia Torpedo Boat Destroyer laid down 1912

Displacement:
   995 t light; 1,039 t standard; 1,160 t normal; 1,256 t full load

Dimensions: Length overall / water x beam x draught
   295.28 ft / 295.28 ft x 29.53 ft x 9.84 ft (normal load)
   90.00 m / 90.00 m x 9.00 m  x 3.00 m

Armament:
      4 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1912 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      2 - 1.97" / 50.0 mm guns in single mounts, 3.81lbs / 1.73kg shells, 1912 Model
     Breech loading guns in deck mounts
     on side, all amidships
   Weight of broadside 149 lbs / 68 kg
   Shells per gun, main battery: 250
   6 - 20.0" / 508 mm above water torpedoes

Perhaps QF guns instead for atleast the 50mm? Of course I'm not sure what your gonna sink w/ 50mm guns, maybe some 200t TBs that should already be scrapped? Other than that, I  agree w/ Rocky, very nice.  ;)

[miketr]

Perhaps QF guns instead for atleast the 50mm? Of course I'm not sure what your gonna sink w/ 50mm guns, maybe some 200t TBs that should already be scrapped? Other than that, I  agree w/ Rocky, very nice.  ;)

Enough 50mm hits will sink another TB; such small ships can't take too many hits of any caliber.   Objective is to put a mass of lead in the air.

Michael

[Sachmle]

Point taken, but I still think I'd prefer them as QF as appose to BL. W/ a 3.8lbs shell, even adding in the charge weight and the brass case, can't see it being more than 10lbs. Your loaders should be able to shuck 10lbs shells all day. IMO of course.