Looking for TB Designs

[miketr]

I am fighting a cold and my brain is just not working today.  I am looking for a apair of DD designs.

250 t light displacement
500 t light displacement

450mm torpedo tubes, 88mm and or 50mm guns.  Max possible speed.

Whichever player comes up with best design for the size gets 1 BP worth built by Germany as thanks; so 2 BP is up for grabs here.  We will come up with some story to cover the transaction in game. 

[Walter]

Looking for TB Designs

I am looking for a apair of DD designs.

So are you looking for a TB or a DD design? Or both? Or one for the 250t one and the other for the 500t one?

Also what year?

[miketr]

I am looking for both a 250t design and 500 ton design.  1900 year for both.

Michael

[Logi]

I have two candidates for the 250t TB position, depending on how important you find speed.

32.5 kt speed, but 0.31 seakeeping. Also not a stable gun platform (39% steadiness).

TB-250A, Germany Torpedo Boat laid down 1900

Displacement:
   250 t light; 263 t standard; 297 t normal; 324 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (196.85 ft / 196.85 ft) x 16.40 ft x (6.89 / 7.35 ft)
   (60.00 m / 60.00 m) x 5.00 m  x (2.10 / 2.24 m)

Armament:
      2 - 3.46" / 88.0 mm 45.0 cal guns - 20.94lbs / 9.50kg shells, 300 per gun
     Breech loading guns in deck mounts, 1900 Model
     2 x Single mounts on centreline ends, evenly spread
      Weight of broadside 42 lbs / 19 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 7,630 ihp / 5,692 Kw = 27.00 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 62 tons (100% coal)
     Caution: Delicate, lightweight machinery

Trial Speed: 32.50 kts

Complement:
   35 - 46

Cost:
   £0.037 million / $0.149 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 2.3 %
      - Guns: 7 tons, 2.3 %
   Machinery: 189 tons, 63.6 %
   Hull, fittings & equipment: 50 tons, 16.8 %
   Fuel, ammunition & stores: 47 tons, 15.9 %
   Miscellaneous weights: 4 tons, 1.3 %
      - On freeboard deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     35 lbs / 16 Kg = 1.7 x 3.5 " / 88 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 0.4 ft / 0.1 m
   Roll period: 10.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 39 %
         - Recoil effect (Restricted arc if above 1.00): 0.19
   Seaboat quality  (Average = 1.00): 0.31

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.467 / 0.478
   Length to Beam Ratio: 12.00 : 1
   'Natural speed' for length: 14.03 kts
   Power going to wave formation at top speed: 69 %
   Trim (Max stability = 0, Max steadiness = 100): 100
   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 %,  6.56 ft / 2.00 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:   30.00 %,  3.61 ft / 1.10 m,  3.61 ft / 1.10 m
      - Quarter deck:   20.00 %,  3.61 ft / 1.10 m,  4.59 ft / 1.40 m
      - Average freeboard:      5.18 ft / 1.58 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 213.4 %
      - Above water (accommodation/working, high = better): 57.8 %
   Waterplane Area: 2,090 Square feet or 194 Square metres
   Displacement factor (Displacement / loading): 12 %
   Structure weight / hull surface area: 15 lbs/sq ft or 75 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 0.59
      - Overall: 0.50
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Caution: Lacks seaworthiness - very limited seakeeping ability

2 x 1 45cm TT, with single reloads

30 kt speed, but 0.74 seakeeping. A good gun platform (70% steadiness). Guns also have a splash screen (3mm).

TB-250B, Germany Torpedo Boat laid down 1900

Displacement:
   250 t light; 263 t standard; 297 t normal; 324 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (196.85 ft / 196.85 ft) x 16.40 ft x (6.89 / 7.35 ft)
   (60.00 m / 60.00 m) x 5.00 m  x (2.10 / 2.24 m)

Armament:
      2 - 3.46" / 88.0 mm 45.0 cal guns - 20.94lbs / 9.50kg shells, 300 per gun
     Breech loading guns in deck mounts, 1900 Model
     2 x Single mounts on centreline ends, evenly spread
      Weight of broadside 42 lbs / 19 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.12" / 3 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5,481 ihp / 4,089 Kw = 25.00 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 62 tons (100% coal)
     Caution: Delicate, lightweight machinery

Trial Speed: 30.00 kts

Complement:
   35 - 46

Cost:
   £0.036 million / $0.145 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 2.3 %
      - Guns: 7 tons, 2.3 %
   Armour: 1 tons, 0.2 %
      - Armament: 1 tons, 0.2 %
   Machinery: 181 tons, 60.9 %
   Hull, fittings & equipment: 58 tons, 19.4 %
   Fuel, ammunition & stores: 47 tons, 15.9 %
   Miscellaneous weights: 4 tons, 1.3 %
      - On freeboard deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     46 lbs / 21 Kg = 2.2 x 3.5 " / 88 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 0.4 ft / 0.1 m
   Roll period: 10.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.30
   Seaboat quality  (Average = 1.00): 0.74

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.467 / 0.478
   Length to Beam Ratio: 12.00 : 1
   'Natural speed' for length: 14.03 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 95
   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 %,  6.56 ft / 2.00 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:   30.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Quarter deck:   20.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Average freeboard:      6.56 ft / 2.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 204.8 %
      - Above water (accommodation/working, high = better): 74.6 %
   Waterplane Area: 2,090 Square feet or 194 Square metres
   Displacement factor (Displacement / loading): 17 %
   Structure weight / hull surface area: 15 lbs/sq ft or 75 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.00
      - Overall: 0.53
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

2 x 1 45cm TT, with single reloads

[Logi]

500t is simpler... here is a modified Ikazuchi class.

30 kts, 1.21 seakeeping, 70 steadiness, double instead of single reloads

Ikazuchi, Japan Destroyer laid down 1900

Displacement:
   500 t light; 521 t standard; 573 t normal; 615 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229.66 ft / 229.66 ft) x 18.37 ft x (9.84 / 10.37 ft)
   (70.00 m / 70.00 m) x 5.60 m  x (3.00 / 3.16 m)

Armament:
      2 - 3.46" / 88.0 mm 45.0 cal guns - 20.97lbs / 9.51kg shells, 300 per gun
     Breech loading guns in deck mounts, 1900 Model
     2 x Single mounts on centreline, evenly spread
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 300 per gun
     Breech loading guns in casemate mounts, 1900 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 57 lbs / 26 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.12" / 3 mm         -               -
   2nd:   0.12" / 3 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 10,652 ihp / 7,947 Kw = 27.00 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 94 tons (100% coal)
     Caution: Delicate, lightweight machinery

Trial Speed: 30.00 kts

Complement:
   58 - 76

Cost:
   £0.070 million / $0.278 million

Distribution of weights at normal displacement:
   Armament: 10 tons, 1.7 %
      - Guns: 10 tons, 1.7 %
   Armour: 1 tons, 0.2 %
      - Armament: 1 tons, 0.2 %
   Machinery: 351 tons, 61.2 %
   Hull, fittings & equipment: 132 tons, 23.1 %
   Fuel, ammunition & stores: 73 tons, 12.7 %
   Miscellaneous weights: 6 tons, 1.0 %
      - On freeboard deck: 6 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     109 lbs / 49 Kg = 5.2 x 3.5 " / 88 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.29
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 9.8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.31
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.483 / 0.492
   Length to Beam Ratio: 12.50 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 66 %
   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 (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  10.83 ft / 3.30 m,  9.84 ft / 3.00 m
      - Forward deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Aft deck:   30.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Quarter deck:   20.00 %,  9.84 ft / 3.00 m,  9.84 ft / 3.00 m
      - Average freeboard:      9.92 ft / 3.02 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 203.3 %
      - Above water (accommodation/working, high = better): 89.5 %
   Waterplane Area: 2,768 Square feet or 257 Square metres
   Displacement factor (Displacement / loading): 17 %
   Structure weight / hull surface area: 19 lbs/sq ft or 95 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 2.62
      - Overall: 0.59
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

2 x 1 45cm TT, with double reloads

[Walter]

Still don't know if you want destroyers or torpedoboats...

On the 500t designs, the forward centerline gun is raised so it can be considered to be on the raised forecastle.
On the 250t design, the freeboard is like this... http://german-navy.de/hochseeflotte/ships/torpedoboats/tb1897/index.html




Destroyer pair...

DD1, Germany Destroyer laid down 1900

Displacement:
   445 t light; 462 t standard; 499 t normal; 528 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229.66 ft / 229.66 ft) x 19.69 ft x (9.51 / 9.88 ft)
   (70.00 m / 70.00 m) x 6.00 m  x (2.90 / 3.01 m)

Armament:
      2 - 3.46" / 88.0 mm 40.0 cal guns - 19.93lbs / 9.04kg shells, 250 per gun
     Quick firing guns in deck mounts, 1900 Model
     2 x Single mounts on centreline ends, evenly spread
      1 raised mount - superfiring
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 400 per gun
     Quick firing guns in deck mounts, 1900 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      Weight of broadside 48 lbs / 22 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 13,266 ihp / 9,897 Kw = 29.25 kts
   Range 1,500nm at 10.00 kts
   Bunker at max displacement = 66 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   52 - 68

Cost:
   £0.063 million / $0.250 million

Distribution of weights at normal displacement:
   Armament: 8 tons, 1.6%
      - Guns: 8 tons, 1.6%
   Machinery: 320 tons, 64.1%
   Hull, fittings & equipment: 111 tons, 22.3%
   Fuel, ammunition & stores: 54 tons, 10.8%
   Miscellaneous weights: 6 tons, 1.2%
      - On freeboard deck: 6 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     71 lbs / 32 Kg = 3.4 x 3.5 " / 88 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.27
   Seaboat quality  (Average = 1.00): 0.71

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.406 / 0.414
   Length to Beam Ratio: 11.67 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 84
   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,  11.48 ft / 3.50 m
      - Forward deck:   30.00%,  7.28 ft / 2.22 m,  7.28 ft / 2.22 m
      - Aft deck:   35.00%,  7.28 ft / 2.22 m,  7.28 ft / 2.22 m
      - Quarter deck:   15.00%,  7.28 ft / 2.22 m,  7.28 ft / 2.22 m
      - Average freeboard:      8.12 ft / 2.48 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 211.8%
      - Above water (accommodation/working, high = better): 74.5%
   Waterplane Area: 2,793 Square feet or 259 Square metres
   Displacement factor (Displacement / loading): 12%
   Structure weight / hull surface area: 20 lbs/sq ft or 98 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.42
      - Overall: 0.55
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

2x1 45cm TT + reloads
Trial Speed 32.61 knots

DD2, Germany Destroyer laid down 1900

Displacement:
   217 t light; 226 t standard; 249 t normal; 268 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (184.25 ft / 180.45 ft) x 16.40 ft x (7.38 / 7.76 ft)
   (56.16 m / 55.00 m) x 5.00 m  x (2.25 / 2.37 m)

Armament:
      1 - 3.46" / 88.0 mm 40.0 cal gun - 19.93lbs / 9.04kg shells, 200 per gun
     Quick firing gun in deck mount, 1900 Model
     1 x Single mount on centreline, aft deck aft
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 350 per gun
     Quick firing guns in deck mounts, 1900 Model
     2 x Single mounts on sides, forward deck aft
      Weight of broadside 28 lbs / 13 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 5,466 ihp / 4,078 Kw = 25.50 kts
   Range 1,500nm at 10.00 kts
   Bunker at max displacement = 42 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   30 - 40

Cost:
   £0.031 million / $0.123 million

Distribution of weights at normal displacement:
   Armament: 5 tons, 2.0%
      - Guns: 5 tons, 2.0%
   Machinery: 156 tons, 62.5%
   Hull, fittings & equipment: 52 tons, 21.0%
   Fuel, ammunition & stores: 32 tons, 12.9%
   Miscellaneous weights: 4 tons, 1.6%
      - On freeboard deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     37 lbs / 17 Kg = 1.8 x 3.5 " / 88 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 0.4 ft / 0.1 m
   Roll period: 10.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.17
   Seaboat quality  (Average = 1.00): 0.72

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.399 / 0.408
   Length to Beam Ratio: 11.00 : 1
   'Natural speed' for length: 13.43 kts
   Power going to wave formation at top speed: 67 %
   Trim (Max stability = 0, Max steadiness = 100): 83
   Bow angle (Positive = bow angles forward): 5.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   27.00%,  5.94 ft / 1.81 m,  9.84 ft / 3.00 m
      - Forward deck:   30.00%,  5.94 ft / 1.81 m,  5.94 ft / 1.81 m
      - Aft deck:   28.00%,  5.94 ft / 1.81 m,  5.94 ft / 1.81 m
      - Quarter deck:   15.00%,  5.94 ft / 1.81 m,  5.94 ft / 1.81 m
      - Average freeboard:      6.57 ft / 2.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 207.3%
      - Above water (accommodation/working, high = better): 64.9%
   Waterplane Area: 1,722 Square feet or 160 Square metres
   Displacement factor (Displacement / loading): 14%
   Structure weight / hull surface area: 16 lbs/sq ft or 76 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.35
      - Overall: 0.55
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

2x1 45cm TT +reload
Trial Speed: 31.5 knots


Torpedoboat pair...

TB1, Germany Torpedoboat laid down 1900

Displacement:
   450 t light; 462 t standard; 499 t normal; 528 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (229.66 ft / 229.66 ft) x 19.69 ft x (9.51 / 9.88 ft)
   (70.00 m / 70.00 m) x 6.00 m  x (2.90 / 3.01 m)

Armament:
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.86lbs / 1.75kg shells, 400 per gun
     Quick firing gun in deck mount, 1900 Model
     1 x Single mount on centreline, forward deck forward
      1 raised mount
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 400 per gun
     Quick firing guns in deck mounts, 1900 Model
     2 x Single mounts on sides, aft deck forward
      2 raised mounts
      Weight of broadside 12 lbs / 5 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 13,964 ihp / 10,417 Kw = 29.60 kts
   Range 1,500nm at 10.00 kts
   Bunker at max displacement = 66 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   52 - 68

Cost:
   £0.062 million / $0.246 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 0.5%
      - Guns: 3 tons, 0.5%
   Machinery: 322 tons, 64.6%
   Hull, fittings & equipment: 113 tons, 22.6%
   Fuel, ammunition & stores: 49 tons, 9.9%
   Miscellaneous weights: 12 tons, 2.4%
      - On freeboard deck: 12 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     72 lbs / 33 Kg = 18.9 x 2.0 " / 50 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 11.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.09
   Seaboat quality  (Average = 1.00): 0.70

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.406 / 0.414
   Length to Beam Ratio: 11.67 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 69 %
   Trim (Max stability = 0, Max steadiness = 100): 85
   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,  11.48 ft / 3.50 m
      - Forward deck:   30.00%,  7.38 ft / 2.25 m,  7.38 ft / 2.25 m
      - Aft deck:   35.00%,  7.38 ft / 2.25 m,  7.38 ft / 2.25 m
      - Quarter deck:   15.00%,  7.38 ft / 2.25 m,  7.38 ft / 2.25 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): 210.0%
      - Above water (accommodation/working, high = better): 75.5%
   Waterplane Area: 2,793 Square feet or 259 Square metres
   Displacement factor (Displacement / loading): 11%
   Structure weight / hull surface area: 20 lbs/sq ft or 96 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.44
      - Overall: 0.55
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

4x1 45cm TT + reloads
Trial Speed 32.89 knots

TB2, Germany Torpedoboat laid down 1900

Displacement:
   218 t light; 226 t standard; 249 t normal; 268 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (184.25 ft / 180.45 ft) x 16.40 ft x (7.38 / 7.76 ft)
   (56.16 m / 55.00 m) x 5.00 m  x (2.25 / 2.37 m)

Armament:
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 350 per gun
     Quick firing gun in deck mount, 1900 Model
     1 x Single mount on centreline, aft deck aft
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 350 per gun
     Quick firing guns in deck mounts, 1900 Model
     2 x Single mounts on sides, forward deck aft
      Weight of broadside 12 lbs / 5 kg

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 1 shaft, 5,652 ihp / 4,217 Kw = 25.70 kts
   Range 1,500nm at 10.00 kts
   Bunker at max displacement = 42 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   30 - 40

Cost:
   £0.030 million / $0.121 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 1.0%
      - Guns: 3 tons, 1.0%
   Machinery: 157 tons, 62.9%
   Hull, fittings & equipment: 53 tons, 21.4%
   Fuel, ammunition & stores: 31 tons, 12.4%
   Miscellaneous weights: 6 tons, 2.4%
      - On freeboard deck: 6 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     37 lbs / 17 Kg = 9.8 x 2.0 " / 50 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 0.4 ft / 0.1 m
   Roll period: 10.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.07
   Seaboat quality  (Average = 1.00): 0.70

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.399 / 0.408
   Length to Beam Ratio: 11.00 : 1
   'Natural speed' for length: 13.43 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 86
   Bow angle (Positive = bow angles forward): 5.00 degrees
   Stern overhang: 3.28 ft / 1.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   27.00%,  5.94 ft / 1.81 m,  9.84 ft / 3.00 m
      - Forward deck:   30.00%,  5.94 ft / 1.81 m,  5.94 ft / 1.81 m
      - Aft deck:   28.00%,  5.94 ft / 1.81 m,  5.94 ft / 1.81 m
      - Quarter deck:   15.00%,  5.94 ft / 1.81 m,  5.94 ft / 1.81 m
      - Average freeboard:      6.57 ft / 2.00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 205.8%
      - Above water (accommodation/working, high = better): 64.9%
   Waterplane Area: 1,722 Square feet or 160 Square metres
   Displacement factor (Displacement / loading): 14%
   Structure weight / hull surface area: 15 lbs/sq ft or 75 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.34
      - Overall: 0.55
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

3x1 45cm TT +reload
Trial Speed: 31.71 knots

[The Rock Doctor]

250 t design.  Misc. weight for two torpedoes and a short-range wireless, with 1 t for reserve (or gun shields)

Enter ship name, Enter country Enter ship type laid down 1900

Displacement:
   250 t light; 257 t standard; 282 t normal; 303 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (182.09 ft / 182.09 ft) x 15.91 ft x (8.53 / 8.94 ft)
   (55.50 m / 55.50 m) x 4.85 m  x (2.60 / 2.72 m)

Armament:
      2 - 1.97" / 50.0 mm 40.0 cal guns - 3.66lbs / 1.66kg shells, 200 per gun
     Quick firing guns in deck mounts, 1900 Model
     2 x Single mounts on centreline, evenly spread
      1 raised mount
      2 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1900 Model
     2 x Single mounts on sides amidships
      Weight of broadside 7 lbs / 3 kg
      Main Torpedoes
      1 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedo - 0.579 t total
   In a deck mounted carriage/fixed tube
      2nd Torpedoes
      1 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedo - 0.579 t total
   In a deck mounted carriage/fixed tube

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 5,000 ihp / 3,730 Kw = 24.54 kts
   Range 1,500nm at 10.00 kts
   Bunker at max displacement = 46 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   33 - 44

Cost:
   £0.033 million / $0.133 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 1.0 %
      - Guns: 1 tons, 0.5 %
      - Weapons: 1 tons, 0.5 %
   Machinery: 172 tons, 60.8 %
   Hull, fittings & equipment: 62 tons, 22.0 %
   Fuel, ammunition & stores: 33 tons, 11.5 %
   Miscellaneous weights: 13 tons, 4.6 %
      - On freeboard deck: 13 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     51 lbs / 23 Kg = 13.3 x 2.0 " / 50 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 9.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.07
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.400 / 0.410
   Length to Beam Ratio: 11.44 : 1
   'Natural speed' for length: 13.49 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   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:   25.00 %,  6.56 ft / 2.00 m,  11.48 ft / 3.50 m
      - Forward deck:   15.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Aft deck:   45.00 %,  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:      7.30 ft / 2.23 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 197.8 %
      - Above water (accommodation/working, high = better): 65.7 %
   Waterplane Area: 1,784 Square feet or 166 Square metres
   Displacement factor (Displacement / loading): 18 %
   Structure weight / hull surface area: 15 lbs/sq ft or 75 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.97
      - Overall: 0.57
   Cramped machinery, storage, compartmentation space
   Cramped accommodation and workspace room

[The Rock Doctor]

500 t design.  Misc. weight for three fish and short-range wireless, no reserve (unshielded guns allow 1 t more).

Enter ship name, Enter country Enter ship type laid down 1900

Displacement:
   500 t light; 516 t standard; 567 t normal; 607 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (225.39 ft / 225.39 ft) x 23.95 ft x (9.19 / 9.61 ft)
   (68.70 m / 68.70 m) x 7.30 m  x (2.80 / 2.93 m)

Armament:
      2 - 3.46" / 88.0 mm 40.0 cal guns - 19.93lbs / 9.04kg shells, 200 per gun
     Quick firing guns in deck mounts, 1900 Model
     2 x Single mounts on centreline, evenly spread
      1 raised mount
      2 - 0.31" / 8.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1900 Model
     2 x Single mounts on sides amidships
      Weight of broadside 40 lbs / 18 kg
      Main Torpedoes
      1 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedo - 0.579 t total
   In a deck mounted carriage/fixed tube
      2nd Torpedoes
      2 - 17.7" / 450 mm, 16.40 ft / 5.00 m torpedoes - 0.579 t each, 1.159 t total
   In 2 sets of deck mounted carriage/fixed tubes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.20" / 5 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 11,000 ihp / 8,206 Kw = 27.23 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 91 tons (100% coal)
     Caution: Delicate, lightweight machinery

Complement:
   57 - 75

Cost:
   £0.068 million / $0.273 million

Distribution of weights at normal displacement:
   Armament: 9 tons, 1.5 %
      - Guns: 7 tons, 1.2 %
      - Weapons: 2 tons, 0.4 %
   Armour: 1 tons, 0.2 %
      - Armament: 1 tons, 0.2 %
   Machinery: 349 tons, 61.6 %
   Hull, fittings & equipment: 128 tons, 22.7 %
   Fuel, ammunition & stores: 67 tons, 11.8 %
   Miscellaneous weights: 13 tons, 2.3 %
      - On freeboard deck: 13 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     113 lbs / 51 Kg = 5.4 x 3.5 " / 88 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.57
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 9.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.08
   Seaboat quality  (Average = 1.00): 0.88

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.400 / 0.410
   Length to Beam Ratio: 9.41 : 1
   'Natural speed' for length: 15.01 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   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:   25.00 %,  13.78 ft / 4.20 m,  15.75 ft / 4.80 m
      - Forward deck:   15.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Aft deck:   45.00 %,  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:      9.65 ft / 2.94 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 202.1 %
      - Above water (accommodation/working, high = better): 85.5 %
   Waterplane Area: 3,323 Square feet or 309 Square metres
   Displacement factor (Displacement / loading): 16 %
   Structure weight / hull surface area: 21 lbs/sq ft or 102 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.69
      - Overall: 0.56
   Extremely poor machinery, storage, compartmentation space
   Cramped accommodation and workspace room
   Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

[snip]

Please dont use the built in torpedo tab. Use misc weight instead.

[The Rock Doctor]

I put in the torpedo tab so it shows up in the report, but I still use the miscellaneous weight for the actual weapon tonnage.

[snip]

I put in the torpedo tab so it shows up in the report, but I still use the miscellaneous weight for the actual weapon tonnage.

What that does is make it apply the torp weights on reloading the sim. It is best not to use the tab at all and just apply the misc weight.

[The Rock Doctor]

I've never actually noticed this - my hull strength remains constant when reloading files. 

[The Rock Doctor]

Okay, I see it with my test file.  I guess the answer is not to put a length on the torpedo - thus there's no weight assigned, but the entry still shows up in the weapons area of the report?

[Walter]

Hull strenght should change when reloading it, unless the sim is very close to going to an overall strength of 0.51 and is close to going to 0.49 when reloading it.

Another thing to consider to just ignore the torpedo entries is that there are fixed weights for the various torpedo diameters so you would have to mess around a lot with the length of the torpedo in order to get the proper weight. Using miscellaneous weights is a lot quicker and easier.

[snip]

Okay, I see it with my test file.  I guess the answer is not to put a length on the torpedo - thus there's no weight assigned, but the entry still shows up in the weapons area of the report?

Honestly, I really would prefer just having them accounted for in Misc weight only. Working with the damn weapons tab is just rife with possibilities for screwy things to happen.