Vilnius Union Ships, 1930+: The Good, The Bad, and the Unseaworthy

[The Rock Doctor]

Another option for a CLAA.  While I'm not inclined to think the Union would value a CLAA in 1935, the fact of the matter is that it does operate a heap of older cruiser with 130mm main batteries and maybe it could be convinced that the Caribbean is a useful place to have some.  We'll see, or maybe we won't. 

General layout is best pictured as an early Atlanta-type, minus C-turret.  Bear in mind that the mid-break would place B and X at the same level, A and Y at the same level, and Z a level below that.

The two beam guns are just in front of the hull break to allow for decent firing arcs.



Enter ship name, Enter country Enter ship type laid down 1935

Displacement:
   5,988 t light; 6,387 t standard; 7,223 t normal; 7,892 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (549.37 ft / 534.78 ft) x 52.49 ft x (20.01 / 21.29 ft)
   (167.45 m / 163.00 m) x 16.00 m  x (6.10 / 6.49 m)

Armament:
      10 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 400 per gun
     Dual purpose guns in deck and hoist mounts, 1935 Model
     4 x 2-gun mounts on centreline, evenly spread
      2 raised mounts
     1 x 2-gun mount on centreline, aft deck forward
      1 double raised mount aft
      4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 400 per gun
     Dual purpose guns in deck and hoist mounts, 1935 Model
     2 x Twin mounts on sides, forward deck aft
      12 - 1.97" / 50.0 mm 60.0 cal guns - 4.19lbs / 1.90kg shells, 1,500 per gun
     Anti-air guns in deck mounts, 1935 Model
     6 x Twin mounts on sides, evenly spread
      8 - 0.59" / 15.0 mm 90.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
     Machine guns in deck mounts, 1935 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 998 lbs / 453 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3.54" / 90 mm   347.61 ft / 105.95 m   16.37 ft / 4.99 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length
     Main Belt inclined 16.00 degrees (positive = in)

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   1.18" / 30 mm      1.97" / 50 mm
   2nd:   1.97" / 50 mm   1.18" / 30 mm      1.97" / 50 mm
   3rd:   0.59" / 15 mm         -               -
   4th:   0.59" / 15 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 1.97" / 50 mm
   Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 3.54" / 90 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 65,013 shp / 48,500 Kw = 32.03 kts
   Range 8,000nm at 15.00 kts
   Bunker at max displacement = 1,505 tons

Complement:
   391 - 509

Cost:
   £2.863 million / $11.451 million

Distribution of weights at normal displacement:
   Armament: 269 tons, 3.7 %
      - Guns: 269 tons, 3.7 %
   Armour: 1,606 tons, 22.2 %
      - Belts: 824 tons, 11.4 %
      - Armament: 81 tons, 1.1 %
      - Armour Deck: 673 tons, 9.3 %
      - Conning Tower: 29 tons, 0.4 %
   Machinery: 1,847 tons, 25.6 %
   Hull, fittings & equipment: 1,968 tons, 27.2 %
   Fuel, ammunition & stores: 1,235 tons, 17.1 %
   Miscellaneous weights: 298 tons, 4.1 %
      - On freeboard deck: 98 tons
      - Above deck: 200 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6,490 lbs / 2,944 Kg = 96.8 x 5.1 " / 130 mm shells or 1.3 torpedoes
   Stability (Unstable if below 1.00): 1.05
   Metacentric height 2.1 ft / 0.6 m
   Roll period: 15.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.54
   Seaboat quality  (Average = 1.00): 1.18

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and small transom stern
   Block coefficient (normal/deep): 0.450 / 0.462
   Length to Beam Ratio: 10.19 : 1
   'Natural speed' for length: 24.88 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 4.92 ft / 1.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  26.57 ft / 8.10 m,  21.65 ft / 6.60 m
      - Forward deck:   35.00 %,  21.65 ft / 6.60 m,  21.65 ft / 6.60 m
      - Aft deck:   30.00 %,  13.78 ft / 4.20 m,  13.78 ft / 4.20 m
      - Quarter deck:   15.00 %,  13.78 ft / 4.20 m,  13.78 ft / 4.20 m
      - Average freeboard:      18.50 ft / 5.64 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98.1 %
      - Above water (accommodation/working, high = better): 160.8 %
   Waterplane Area: 18,323 Square feet or 1,702 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 68 lbs/sq ft or 332 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.70
      - Longitudinal: 1.27
      - Overall: 0.75
   Caution: Hull subject to strain in open-sea
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[TacCovert4]

Overall I agree that while we're all looking at CLAA, there's really only an iffy need for them yet.  Probably late 30s the need will be more apparent.

[The Rock Doctor]

If I wanted a 30 knot battleship, it's gonna cost me several thousand more tonnes than the 27 knot ship.


.mmm, Enter country Enter ship type laid down 1934

Displacement:
   53,849 t light; 56,537 t standard; 60,365 t normal; 63,427 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (894.49 ft / 875.98 ft) x 114.83 ft x (31.82 / 33.20 ft)
   (272.64 m / 267.00 m) x 35.00 m  x (9.70 / 10.12 m)

Armament:
      8 - 15.75" / 400 mm 50.0 cal guns - 2,425.09lbs / 1,100.00kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1934 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      20 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 400 per gun
     Dual purpose guns in deck and hoist mounts, 1934 Model
     8 x 2-gun mounts on side ends, evenly spread
     2 x 2-gun mounts on centreline, evenly spread
      2 double raised mounts
      28 - 1.97" / 50.0 mm 60.0 cal guns - 4.19lbs / 1.90kg shells, 1,500 per gun
     Anti-air guns in deck mounts, 1934 Model
     12 x Twin mounts on sides, evenly spread
      8 raised mounts
     2 x Twin mounts on centreline ends, evenly spread
      16 - 0.59" / 15.0 mm 90.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
     Machine guns in deck mounts, 1934 Model
     8 x Twin mounts on sides, evenly spread
      8 double raised mounts
      Weight of broadside 20,872 lbs / 9,467 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   17.3" / 440 mm   569.39 ft / 173.55 m   16.37 ft / 4.99 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length
     Main Belt inclined 16.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      3.54" / 90 mm   569.39 ft / 173.55 m   30.64 ft / 9.34 m
   Beam between torpedo bulkheads 82.02 ft / 25.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   19.7" / 500 mm   7.87" / 200 mm      15.7" / 400 mm
   3rd:   1.97" / 50 mm   1.18" / 30 mm      1.97" / 50 mm
   4th:   0.59" / 15 mm         -               -
   5th:   0.59" / 15 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 6.69" / 170 mm
   Forecastle: 5.51" / 140 mm  Quarter deck: 6.69" / 170 mm

   - Conning towers: Forward 15.75" / 400 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 190,349 shp / 142,000 Kw = 30.01 kts
   Range 10,000nm at 15.00 kts
   Bunker at max displacement = 6,890 tons

Complement:
   1,925 - 2,503

Cost:
   £22.102 million / $88.409 million

Distribution of weights at normal displacement:
   Armament: 4,075 tons, 6.8 %
      - Guns: 4,075 tons, 6.8 %
   Armour: 23,479 tons, 38.9 %
      - Belts: 6,924 tons, 11.5 %
      - Torpedo bulkhead: 2,287 tons, 3.8 %
      - Armament: 4,191 tons, 6.9 %
      - Armour Deck: 9,555 tons, 15.8 %
      - Conning Tower: 522 tons, 0.9 %
   Machinery: 5,476 tons, 9.1 %
   Hull, fittings & equipment: 19,847 tons, 32.9 %
   Fuel, ammunition & stores: 6,516 tons, 10.8 %
   Miscellaneous weights: 972 tons, 1.6 %
      - On freeboard deck: 172 tons
      - Above deck: 800 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     99,489 lbs / 45,128 Kg = 50.9 x 15.7 " / 400 mm shells or 18.6 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 7.1 ft / 2.2 m
   Roll period: 18.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality  (Average = 1.00): 1.13

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.660 / 0.665
   Length to Beam Ratio: 7.63 : 1
   'Natural speed' for length: 29.60 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  32.81 ft / 10.00 m,  23.62 ft / 7.20 m
      - Forward deck:   40.00 %,  23.62 ft / 7.20 m,  23.62 ft / 7.20 m
      - Aft deck:   25.00 %,  23.62 ft / 7.20 m,  23.62 ft / 7.20 m
      - Quarter deck:   15.00 %,  23.62 ft / 7.20 m,  23.62 ft / 7.20 m
      - Average freeboard:      24.36 ft / 7.42 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82.0 %
      - Above water (accommodation/working, high = better): 181.8 %
   Waterplane Area: 77,765 Square feet or 7,225 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 208 lbs/sq ft or 1,014 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.01
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[Kaiser Kirk]

Yes, they balloon quickly. Makes it hard to field the numbers one may want, not to mention a supporting fleet.

[The Rock Doctor]

Indeed. It's something I'm thinking about more in the context of my older battlecruisers being almost twenty years old, rather than a question of wanting fast battleships to hang out with carriers.

The actual Kepler class will probably grow by a few hundred tonnes so I can notch the main battery barbettes from 380 to 400mm.  Sims are still being tinkered with.

[Kaiser Kirk]

I wound up looking at what I wanted my newer battlewagons to do....and while it was tempting to go for the 55 tonners, I just couldn't see it working with my fleet design.  The Arwand class is slightly faster than Iberian ships (Malta signatory), and can face off with Byzantine or Roman at any range. Plus they can mix in with my 'fast wing' 26kt DNs.  Because of Jeftge's BCs, and likely IJN ones, There is still a role for a capital ship that can keep pace with the cruiser screen, so I need a Dahae follow on. But my AC's 255 gun can penetrate most BCs out pretty far.  I've somewhat decided to leave the role of "chase down cruiser" or "solo raider" to the Armored cruiser and Cruiser classes. The Xiyon class has sufficient speed nothing can overtake them, and can beat any cruiser and is even odds vs ACs. 

[The Rock Doctor]

Revised Kepler for heavier barbette armor.  I've also allocated more space for command facilities than I usually do.  This shouldn't change my sketch and doesn't greatly impact my production plans.


.mmm, Enter country Enter ship type laid down 1934

Displacement:
   46,705 t light; 49,240 t standard; 52,739 t normal; 55,538 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (805.31 ft / 787.40 ft) x 108.27 ft (Bulges 114.83 ft) x (31.17 / 32.66 ft)
   (245.46 m / 240.00 m) x 33.00 m (Bulges 35.00 m)  x (9.50 / 9.96 m)

Armament:
      8 - 15.75" / 400 mm 50.0 cal guns - 2,425.09lbs / 1,100.00kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1934 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      20 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 400 per gun
     Dual purpose guns in deck and hoist mounts, 1934 Model
     8 x 2-gun mounts on side ends, evenly spread
     2 x 2-gun mounts on centreline, evenly spread
      2 double raised mounts
      28 - 1.97" / 50.0 mm 60.0 cal guns - 4.19lbs / 1.90kg shells, 1,500 per gun
     Anti-air guns in deck mounts, 1934 Model
     12 x Twin mounts on sides, evenly spread
      8 raised mounts
     2 x Twin mounts on centreline ends, evenly spread
      16 - 0.59" / 15.0 mm 90.0 cal guns - 0.11lbs / 0.05kg shells, 5,000 per gun
     Machine guns in deck mounts, 1934 Model
     8 x Twin mounts on sides, evenly spread
      8 double raised mounts
      Weight of broadside 20,872 lbs / 9,467 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   17.3" / 440 mm   511.81 ft / 156.00 m   16.37 ft / 4.99 m
   Ends:   Unarmoured
     Main Belt covers 100 % of normal length
     Main Belt inclined 16.00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      2.95" / 75 mm   511.81 ft / 156.00 m   29.95 ft / 9.13 m
   Beam between torpedo bulkheads 82.02 ft / 25.00 m

   - Hull Bulges:
      0.59" / 15 mm   456.36 ft / 139.10 m   29.20 ft / 8.90 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   19.7" / 500 mm   7.87" / 200 mm      15.7" / 400 mm
   3rd:   1.97" / 50 mm   1.18" / 30 mm      1.97" / 50 mm
   4th:   0.59" / 15 mm         -               -
   5th:   0.59" / 15 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 6.69" / 170 mm
   Forecastle: 5.51" / 140 mm  Quarter deck: 6.69" / 170 mm

   - Conning towers: Forward 15.75" / 400 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 121,984 shp / 91,000 Kw = 27.04 kts
   Range 10,000nm at 15.00 kts
   Bunker at max displacement = 6,297 tons

Complement:
   1,739 - 2,262

Cost:
   £19.523 million / $78.093 million

Distribution of weights at normal displacement:
   Armament: 4,075 tons, 7.7 %
      - Guns: 4,075 tons, 7.7 %
   Armour: 20,886 tons, 39.6 %
      - Belts: 6,262 tons, 11.9 %
      - Torpedo bulkhead: 1,675 tons, 3.2 %
      - Bulges: 291 tons, 0.6 %
      - Armament: 4,120 tons, 7.8 %
      - Armour Deck: 8,061 tons, 15.3 %
      - Conning Tower: 477 tons, 0.9 %
   Machinery: 3,509 tons, 6.7 %
   Hull, fittings & equipment: 17,264 tons, 32.7 %
   Fuel, ammunition & stores: 6,034 tons, 11.4 %
   Miscellaneous weights: 970 tons, 1.8 %
      - On freeboard deck: 170 tons
      - Above deck: 800 tons

-60 t:  2 armed scoutplanes and cross-deck catapult (FD)
-408 t:  Fire control (AD)
-50 t:  Redundant L/R wireless (AD)
-25 t:  Huelsmeyer device (AD)
-25 t:  Nightfighting doodads (AD)
-200 t:  Command facilities (AD)
-110 t + 92 t:  Weight reserve (FD/AD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     92,350 lbs / 41,889 Kg = 47.3 x 15.7 " / 400 mm shells or 17.9 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 7.1 ft / 2.2 m
   Roll period: 18.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.65
   Seaboat quality  (Average = 1.00): 1.25

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.655 / 0.658
   Length to Beam Ratio: 6.86 : 1
   'Natural speed' for length: 28.06 kts
   Power going to wave formation at top speed: 49 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  31.17 ft / 9.50 m,  22.97 ft / 7.00 m
      - Forward deck:   40.00 %,  22.97 ft / 7.00 m,  22.97 ft / 7.00 m
      - Aft deck:   25.00 %,  22.97 ft / 7.00 m,  22.97 ft / 7.00 m
      - Quarter deck:   15.00 %,  22.97 ft / 7.00 m,  22.97 ft / 7.00 m
      - Average freeboard:      23.62 ft / 7.20 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 72.3 %
      - Above water (accommodation/working, high = better): 165.0 %
   Waterplane Area: 65,606 Square feet or 6,095 Square metres
   Displacement factor (Displacement / loading): 113 %
   Structure weight / hull surface area: 210 lbs/sq ft or 1,027 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.20
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[TacCovert4]

Is that a monolithic 17in belt....or a decapping system?

[The Rock Doctor]

90mm decapping plate over a 350mm main belt.

Edit:  This will be made explicit in the encyclopedia entry.

[The Rock Doctor]

Looking at that battleship and wondering how many single 25mm autocannons I can jam into that sucker in 1941.

[The Rock Doctor]

The E-class sloops are an upgrade to the 1931 Bremen class ships and will serve the same basic function - ocean-going trade defence.

The slightly fuller, slightly longer hull allows for greater bunkerage.  Revised weight distribution allows for the installation of a Huelsmeyer device topside.  A few more light AA guns are added.

Consideration was given towards installing minesweeping gear rather than a towing rig, but the latter seems more useful for the ocean-going role.



Enter ship name, Enter country Enter ship type laid down 1934

Displacement:
   967 t light; 1,023 t standard; 1,210 t normal; 1,359 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (256.30 ft / 242.78 ft) x 29.53 ft x (11.81 / 12.88 ft)
   (78.12 m / 74.00 m) x 9.00 m  x (3.60 / 3.93 m)

Armament:
      2 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 400 per gun
     Dual purpose guns in deck mounts, 1934 Model
     1 x Single mount on centreline, forward deck forward
     1 x Single mount on centreline, aft deck centre
      1 raised mount aft
      2 - 1.97" / 50.0 mm 60.0 cal guns - 4.18lbs / 1.89kg shells, 1,500 per gun
     Anti-air guns in deck mount, 1934 Model
     1 x Twin mount on centreline, aft deck forward
      1 double raised mount
      8 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 5,000 per gun
     Machine guns in deck mounts, 1934 Model
     4 x Twin mounts on sides, evenly spread
      4 double raised mounts
      1 - 5.91" / 150 mm 25.0 cal gun - 93.53lbs / 42.43kg shells, 150 per gun
     Breech loading gun in deck mount, 1934 Model
     1 x Single mount on centreline, forward deck forward
      1 raised mount
      Weight of broadside 164 lbs / 75 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.59" / 15 mm            -
   2nd:   0.59" / 15 mm         -               -
   3rd:   0.59" / 15 mm         -               -
   4th:   0.79" / 20 mm   0.59" / 15 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Electric cruising motors plus geared drives, 2 shafts, 10,724 shp / 8,000 Kw = 23.94 kts
   Range 5,000nm at 15.00 kts
   Bunker at max displacement = 336 tons

Complement:
   102 - 133

Cost:
   £0.410 million / $1.640 million

Distribution of weights at normal displacement:
   Armament: 23 tons, 1.9 %
      - Guns: 23 tons, 1.9 %
   Armour: 16 tons, 1.3 %
      - Armament: 16 tons, 1.3 %
   Machinery: 309 tons, 25.5 %
   Hull, fittings & equipment: 367 tons, 30.4 %
   Fuel, ammunition & stores: 242 tons, 20.0 %
   Miscellaneous weights: 253 tons, 20.9 %
      - Hull below water: 102 tons
      - On freeboard deck: 71 tons
      - Above deck: 80 tons

Fittings:
-3 t:  Fire control (AD)
-5 t:  Night-fighting doodads (AD)
-25 t:  Long-range radio (AD)
-25 t:  Huelsmeyer device (AD)
-20 t:  ASW munitions (4 DCT + DC) (FD)
-25 t:  Towing rig (FD)
-26 t + 22 t:  Weight reserve/unassigned (FD/AD)
-77 t:  Electric drive (BW)
-15 t:  Enhanced hydrophone package (BW)
-10 t:  Sonar (BW)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,330 lbs / 603 Kg = 43.6 x 3.9 " / 100 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 12.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.42
   Seaboat quality  (Average = 1.00): 1.84

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.515
   Length to Beam Ratio: 8.22 : 1
   'Natural speed' for length: 15.58 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 38
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 4.92 ft / 1.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  23.62 ft / 7.20 m,  19.69 ft / 6.00 m
      - Forward deck:   30.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Aft deck:   35.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Quarter deck:   15.00 %,  11.81 ft / 3.60 m,  11.81 ft / 3.60 m
      - Average freeboard:      16.06 ft / 4.90 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99.6 %
      - Above water (accommodation/working, high = better): 137.8 %
   Waterplane Area: 4,776 Square feet or 444 Square metres
   Displacement factor (Displacement / loading): 128 %
   Structure weight / hull surface area: 33 lbs/sq ft or 161 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.59
      - Longitudinal: 6.44
      - Overall: 0.75
   Caution: Hull subject to strain in open-sea
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Kaiser Kirk]

What do you mean by 'towing rig'?   Sounds like something to assist vessels in distress. Seems an odd addition.