Torpedo-Boats, Torpedo-Boat Destroyers, and Destroyers in General

[The Rock Doctor]

Weingarten Class Torpedo-Boat

Incremental improvements on the U-class boats.

Weingarten, TB-306, laid down 1927
Weesp, TB-307, laid down 1927
Warzawa, TB-308, laid down 1927
Wilno, TB-309, laid down 1927
Winsum, TB-310, laid down 1927
Warffum, TB-311, laid down 1927
Wielkopolski, TB-312, laid down 1927
Wroclaw, TB-313, laid down 1927
Waren, TB-314, laid down 1928
Wenchi*, TB-315, laid down 1928
Wagrowiec, TB-316, laid down 1928
Wielun, TB-317, laid down 1928
Wladyslawowo, TB-318, laid down 1928
Wloclawek, TB-319, laid down 1928
Walbrzych, TB-320, laid down 1928
Xique-Xique, TB-321, laid down 1928

*Shows up as another Wielkopolski in the sim report but we can't have two, now, can we.

Enter ship name, Enter country Enter ship type laid down 1927

Displacement:
   1,928 t light; 2,018 t standard; 2,289 t normal; 2,507 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (395.26 ft / 383.86 ft) x 36.09 ft x (14.11 / 14.99 ft)
   (120.48 m / 117.00 m) x 11.00 m  x (4.30 / 4.57 m)

Armament:
      4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1927 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      1 - 3.94" / 100.0 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 250 per gun
     Anti-air gun in deck mount, 1927 Model
     1 x Single mount on centreline, forward deck aft
      1 raised mount
      8 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1927 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 302 lbs / 137 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.79" / 20 mm      1.18" / 30 mm
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 42,896 shp / 32,000 Kw = 32.76 kts
   Range 12,000nm at 10.00 kts
   Bunker at max displacement = 489 tons

Complement:
   165 - 215

Cost:
   £0.928 million / $3.713 million

Distribution of weights at normal displacement:
   Armament: 79 tons, 3.5 %
   Armour: 25 tons, 1.1 %
      - Armament: 25 tons, 1.1 %
   Machinery: 1,144 tons, 50.0 %
   Hull, fittings & equipment: 552 tons, 24.1 %
   Fuel, ammunition & stores: 361 tons, 15.8 %
   Miscellaneous weights: 128 tons, 5.6 %
      - Hull below water: 25 tons
      - On freeboard deck: 58 tons
      - Above deck: 45 tons

Fittings:
-8 t:  1918 fire control (AD)
-25 t:  L/R wireless (AD)
-10 t:  Nightfighting doodads (AD)
-24 t:  2x3 21" TT (FD)
-15 t:  ASW munitions (FD)  (2 x Y-DCT, 39 x 280 kg DC)
-21 t:  Weight reserve (mostly FD)
-10 t:  Sonar
-15 t:  Enhanced hydrophones

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     556 lbs / 252 Kg = 8.3 x 5.1 " / 130 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 1.5 ft / 0.4 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.47
   Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.410 / 0.422
   Length to Beam Ratio: 10.64 : 1
   'Natural speed' for length: 19.59 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): 20.00 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 %,  22.31 ft / 6.80 m,  18.37 ft / 5.60 m
      - Forward deck:   28.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Aft deck:   37.00 %,  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:      14.59 ft / 4.45 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 174.6 %
      - Above water (accommodation/working, high = better): 137.6 %
   Waterplane Area: 8,579 Square feet or 797 Square metres
   Displacement factor (Displacement / loading): 73 %
   Structure weight / hull surface area: 36 lbs/sq ft or 177 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.35
      - Overall: 0.55
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent

[The Rock Doctor]

Zeist Class Torpedo-Boat

The Z-class torpedo-boats are, again, incremental updates on the preceding T-, U- and W- class boats but I decided to sketch this one.

It's a bit faster than the W-class because I need the engine weight to stay above 50%. 

The primary difference, really, is that the single 100mm AA is replaced with two twin 50mm/60 cal installations for a heavier volume of fire, albeit at reduced ranges.  The gun's still in development in H1/29, so the lead units will receive them via refit.

Like the W-class, a run of 16 units is anticipated.

Zeist, TB-322, laid down 1929
Zwolle, TB-233, laid down 1929
Zory, TB-234, laid down 1929
Znin, TB-235, laid down 1929
Zoukougbeu, TB-236, laid down 1929
Zuenoula, TB-237, laid down 1929
Zywiec, TB-238, laid down 1929
Zaanstad, TB-239, laid down 1929
Zirndorf, TB-240, laid down 1930
Zella-Mehlis, TB-241, laid down 1930
Zambrow, TB-242, laid down 1930
Zabludnow, TB-243, laid down 1930
Zlocienic, TB-244, laid down 1930
Zboriv, TB-245, laid down 1930
Zhytomyr, TB-244, laid down 1930
Zagore, TB-245, laid down 1930

Z-class, laid down 1929

Displacement:
   1,928 t light; 2,023 t standard; 2,289 t normal; 2,503 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (395.26 ft / 383.86 ft) x 36.09 ft x (14.11 / 14.98 ft)
   (120.48 m / 117.00 m) x 11.00 m  x (4.30 / 4.57 m)

Armament:
      4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1929 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      4 - 1.97" / 50.0 mm 60.0 cal guns - 4.18lbs / 1.89kg shells, 1,000 per gun
     Anti-air guns in deck mounts, 1929 Model
     2 x Twin mounts on centreline, forward deck aft
      2 raised mounts
      8 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1929 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 288 lbs / 131 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.79" / 20 mm      1.18" / 30 mm
   2nd:   0.59" / 15 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 44,236 shp / 33,000 Kw = 33.00 kts
   Range 12,000nm at 10.00 kts
   Bunker at max displacement = 480 tons

Complement:
   165 - 215

Cost:
   £1.022 million / $4.089 million

Distribution of weights at normal displacement:
   Armament: 78 tons, 3.4 %
   Armour: 25 tons, 1.1 %
      - Armament: 25 tons, 1.1 %
   Machinery: 1,148 tons, 50.1 %
   Hull, fittings & equipment: 557 tons, 24.3 %
   Fuel, ammunition & stores: 361 tons, 15.8 %
   Miscellaneous weights: 121 tons, 5.3 %
      - Hull below water: 25 tons
      - On freeboard deck: 51 tons
      - Above deck: 45 tons

Fittings:
-8 t:  1918 fire control (AD)
-25 t:  L/R wireless (AD)
-10 t:  Nightfighting doodads (AD)
-24 t:  2x3 21" TT (FD)
-15 t:  ASW munitions (FD)  (2 x Y-DCT, 39 x 280 kg DC)
-14 t:  Weight reserve (mostly FD)
-10 t:  Sonar (BW)
-15 t:  Enhanced hydrophones (BW)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     554 lbs / 251 Kg = 8.3 x 5.1 " / 130 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 1.5 ft / 0.4 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.46
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.410 / 0.422
   Length to Beam Ratio: 10.64 : 1
   'Natural speed' for length: 19.59 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 20.00 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 %,  22.31 ft / 6.80 m,  18.37 ft / 5.60 m
      - Forward deck:   29.00 %,  18.37 ft / 5.60 m,  18.37 ft / 5.60 m
      - Aft deck:   36.00 %,  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:      14.67 ft / 4.47 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 175.3 %
      - Above water (accommodation/working, high = better): 138.8 %
   Waterplane Area: 8,579 Square feet or 797 Square metres
   Displacement factor (Displacement / loading): 73 %
   Structure weight / hull surface area: 36 lbs/sq ft or 177 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.38
      - Overall: 0.55
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent

[The Rock Doctor]

Angermunde Class Torpedo-Boat

At heart it's a stretched Z-class boat, but:

-There is about 10% more range.  This works out to about 5,500 nm @ 15 knots, not counting geared drive efficiency.

-The main battery is DP, which are heavier, fully enclosed mounts compared to previous low-angle 130/45s.

-Eight torpedoes rather than six.

-There's a bit more speed and miscellaneous weight. 

-Stylistically, the funnels are taller and capped to improve the flow of exhaust fumes away from useful bits of the ship.

Angermunde, TB-246, laid down 1931
Aalborg, TB-247, laid down 1931
Abeokuta, TB-248, laid down 1931
Ahtari, TB-249, laid down 1931
Arhus, TB-250, laid down 1931
Akure, TB-251, laid down 1931
Avesta, TB-252, laid down 1931
Alvros, TB-253, laid down 1931
Asele, TB-254, laid down 1932
Alavus, TB-255, laid down 1932
Aanekoski, TB-256, laid down 1932
Amsterdam, TB-257, laid down 1932

Enter ship name, Enter country Enter ship type laid down 1931

Displacement:
   2,160 t light; 2,288 t standard; 2,603 t normal; 2,856 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (406.35 ft / 393.70 ft) x 37.40 ft x (15.09 / 16.06 ft)
   (123.86 m / 120.00 m) x 11.40 m  x (4.60 / 4.90 m)

Armament:
      4 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 400 per gun
     Dual purpose guns in deck and hoist mounts, 1931 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      4 - 1.97" / 50.0 mm 60.0 cal guns - 4.19lbs / 1.90kg shells, 1,500 per gun
     Anti-air guns in deck mounts, 1931 Model
     2 x Twin mounts on sides, forward deck aft
      2 raised mounts
      8 - 0.59" / 15.0 mm 90.0 cal guns - 0.11lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1931 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 288 lbs / 131 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.79" / 20 mm      1.18" / 30 mm
   2nd:   0.59" / 15 mm         -               -
   3rd:   0.59" / 15 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 49,262 shp / 36,750 Kw = 33.29 kts
   Range 5,500nm at 15.00 kts
   Bunker at max displacement = 568 tons

Complement:
   181 - 236

Cost:
   £1.244 million / $4.975 million

Distribution of weights at normal displacement:
   Armament: 83 tons, 3.2%
      - Guns: 83 tons, 3.2%
   Armour: 28 tons, 1.1%
      - Armament: 28 tons, 1.1%
   Machinery: 1,300 tons, 50.0%
   Hull, fittings & equipment: 606 tons, 23.3%
   Fuel, ammunition & stores: 444 tons, 17.0%
   Miscellaneous weights: 142 tons, 5.5%
      - Hull below water: 25 tons
      - On freeboard deck: 57 tons
      - Above deck: 60 tons

Fittings:
-9 t:  Fire control (AD)
-25 t:  L/R wireless (AD)
-10 t:  Nightfighting doodads (AD)
-10 t:  Huelsmeyer device (AD)
-32 t:  2x4 21" TT (FD)
-15 t:  ASW munitions (FD)
-10 t:  Sonar (BW)
-15 t:  Enhanced hydrophone package (BW)
-10 t + 6 t:  Weight reserve (FD/AD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     602 lbs / 273 Kg = 9.0 x 5.1 " / 130 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 1.4 ft / 0.4 m
   Roll period: 13.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.45
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.410 / 0.423
   Length to Beam Ratio: 10.53 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 3.94 ft / 1.20 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00%,  23.95 ft / 7.30 m,  19.03 ft / 5.80 m
      - Forward deck:   25.00%,  19.03 ft / 5.80 m,  19.03 ft / 5.80 m
      - Aft deck:   40.00%,  11.15 ft / 3.40 m,  11.15 ft / 3.40 m
      - Quarter deck:   15.00%,  11.15 ft / 3.40 m,  11.15 ft / 3.40 m
      - Average freeboard:      15.09 ft / 4.60 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 174.2%
      - Above water (accommodation/working, high = better): 136.1%
   Waterplane Area: 9,119 Square feet or 847 Square metres
   Displacement factor (Displacement / loading): 77%
   Structure weight / hull surface area: 37 lbs/sq ft or 181 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.38
      - Overall: 0.55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

640 @ 33
860 @ 30
2700 @ 20
5500@15
13400@10