Seaplane Carriers

[The Rock Doctor]

HAHAHA YES!

[The Rock Doctor]

A couple of ships are important to early naval aviation work, but are found elsewhere in the encyclopedia:

-AC Dragon was dragged out of service to do some early trials with taking-off ramps and crane-handled seaplanes.  This was mainly because the ship was otherwise quite obsolete, while having a good reserve of miscellaneous weight available for the purpose.  She's done most of her aircraft tests in the sunny waters of South America.  She's at the top of the Armored Cruisers and Cruisers of the Line thread.

-CLT Danube is receiving a floatplane and crane on her quarterdeck in 1/20.  This is happening because she's got the space for it - the cadets will just have to deal with it - and because her deployments are somewhat irregular anyway on account of her training roles.  She'll give the navy a first taste of a fast-ish cruiser with a floatplane for doctrine development purposes.  She's about mid-way through the Protected and Light Cruisers thread.

[The Rock Doctor]

Wezownik Class Seaplane Carrier (Riverine)

The army's come to appreciate the utility of aircraft as recce and observation tools, but where it most needs them - the colonial frontiers - is often the hardest to actually operate them.  There's no infrastructure to bring up parts or fuel, and just surveying and cutting an airstrip can be laborious.  Given the size of some of the rivers in South America and Africa, however, and the army's history of successfully cooperating with the navy in riverine operations, the army proposed that the navy develop a small floatplane tender for riverine operations - essentially using the rivers themselves as airstrips and relying on river steamers to provide the fuel and parts supply.

The Wezownik (the Polish name for Ophiuchus, the snake-bearer - maybe an in-joke about snakes and jungles) will allow forward-deployment of up to three armed floatplanes along a major river such as the [Niger] or [Parana].  There's a hanger allowing for two aircraft to be stowed with wings folded or removed, and deck space to allow one other to be parked.  It'll be a crowded set-up, and it's possible one or two of the aircraft will be kept on the river, tied up to the side of the ship, rather than being stowed aboard.

The provision for munitions is more a contingency than anything else; the primary use of the air group would be scouting, aerial photography, troop liaison, air mail, med-evac, and other non-combat functions.

The ship is armored against small-arms fire and splinters over her machinery room and magazine.  Armament is minimal and self-defensive in nature.  Bunkerage reflects a preference for oil, but allows for coal usage where circumstances require it.

Notionally Wezownik might be the first of several such vessels operating together in South Erika and Africa.

Wezownik, LT-1, laid down 1920
Wolarz, LT-3, laid down 1920

Enter ship name, Enter country Enter ship type laid down 1920

Displacement:
   310 t light; 317 t standard; 329 t normal; 337 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (204.00 ft / 196.85 ft) x 29.53 ft x (2.95 / 3.02 ft)
   (62.18 m / 60.00 m) x 9.00 m  x (0.90 / 0.92 m)

Armament:
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing gun in deck mount, 1920 Model
     1 x Single mount on centreline, forward deck forward
      1 raised mount
      5 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1920 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      Weight of broadside 4 lbs / 2 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.79" / 20 mm     16.40 ft / 5.00 m   7.87 ft / 2.40 m
   Ends:   Unarmoured
     Main Belt covers 13 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -
   3rd:   0.39" / 10 mm         -               -

   - Box over machinery & magazines:
   0.79" / 20 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 241 shp / 180 Kw = 10.05 kts
   Range 1,000nm at 10.00 kts
   Bunker at max displacement = 20 tons (18% coal)

Complement:
   38 - 50

Cost:
   £0.029 million / $0.117 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0.3 %
      - Guns: 1 tons, 0.3 %
   Armour: 32 tons, 9.7 %
      - Belts: 10 tons, 3.2 %
      - Armament: 7 tons, 2.1 %
      - Armour Deck: 14 tons, 4.4 %
   Machinery: 9 tons, 2.6 %
   Hull, fittings & equipment: 159 tons, 48.3 %
   Fuel, ammunition & stores: 19 tons, 5.6 %
   Miscellaneous weights: 110 tons, 33.5 %
      - On freeboard deck: 85 tons
      - Above deck: 25 tons

Fittings:
-75 t:  Facilities for three armed floatplanes (FD)
-25 t:  L/R wireless (AD)
-10 t:  Weight reserve or deck cargo

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5,690 lbs / 2,581 Kg = 186.5 x 6 " / 152 mm shells or 7.5 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 1.2 ft / 0.4 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.670 / 0.672
   Length to Beam Ratio: 6.67 : 1
   'Natural speed' for length: 14.03 kts
   Power going to wave formation at top speed: 25 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   Bow angle (Positive = bow angles forward): 15.00 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 %,  14.44 ft / 4.40 m,  14.44 ft / 4.40 m
      - Forward deck:   30.00 %,  6.56 ft / 2.00 m,  6.56 ft / 2.00 m
      - Aft deck:   35.00 %,  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:      8.14 ft / 2.48 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 11.4 %
      - Above water (accommodation/working, high = better): 149.1 %
   Waterplane Area: 4,535 Square feet or 421 Square metres
   Displacement factor (Displacement / loading): 203 %
   Structure weight / hull surface area: 28 lbs/sq ft or 138 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.97
      - Longitudinal: 1.30
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

[The Rock Doctor]

Oriona Class Seaplane Carrier

The Union's larger seaplane carrier experiment will be the Oriona.

The ship's design is driven by the knowledge that the Navy is still puzzling out what a seaplane carrier should do, how it should be laid out, etc.  There's widespread recognition that the end product will likely be a learning experience or, as a few old salts might say, "A piece of shit".  This has in turn driven a decision to re-use a repurposed set of turbine machinery that will be fifteen years old when it's installed in the Oriona.  On the one hand, this likely costs the ship a few knots of speed.  On the other hand, it negates over a third of its material costs.

It's not like Oriona was going to be running around with the battleline anyway - but she could keep pace with the older ships for exercise and doctrinal development purposes.

Anyway.

There's a flying-off deck forward, with a hanger for two wheeled fighters under it.  This is accessed by a crane on the port side.  There's no way to recover these guys, but it permits more experimentation with naval wheeled stuff than was possible before.

There's also a hanger and two cranes for up to four seaplanes, taking up the aft half of the ship.  The hanger is theoretically large enough to stow all four seaplanes with wings folded, or two if not.  There's a small air operations room atop the hanger, some trainable lights, that sort of thing.  This is all about learning how to operate an airgroup, albeit a small one.

Given her largely experimental nature, the ship is very lightly armed, which is just as well since there's hardly anywhere to put guns.  A couple of AA guns are on the roof of the hanger, and a single 10cm gun is jammed in on the centreline between the two funnels.  Don't even ask about armor.

The objective is to put Oriona through the paces after her late 1920 completion and inform the possible development of future seaplane carriers/seaplane cruisers/flight-deck cruisers.   

Oriona, LT-2, laid down 1920

Oriona, laid down 1920 (Engine 1905)

Displacement:
   2,353 t light; 2,418 t standard; 2,963 t normal; 3,399 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (396.33 ft / 377.30 ft) x 45.93 ft x (12.47 / 13.81 ft)
   (120.80 m / 115.00 m) x 14.00 m x (3.80 / 4.21 m)

Armament:
      1 - 3.94" / 100 mm 45.0 cal gun - 30.78lbs / 13.96kg shells, 250 per gun
     Quick firing gun in deck mount, 1920 Model
     1 x Single mount on centreline, forward deck aft
      1 raised mount
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 150 per gun
     Anti-air guns in deck mounts, 1920 Model
     2 x Single mounts on sides, aft deck forward
      2 raised mounts
      5 - 0.39" / 10.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 4,000 per gun
     Breech loading guns in deck mounts, 1920 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
     4 x Single mounts on sides, evenly spread
      4 double raised mounts
      Weight of broadside 39 lbs / 18 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.39" / 10 mm            -
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 12,064 shp / 9,000 Kw = 22.59 kts
   Range 10,000nm at 10.00 kts
   Bunker at max displacement = 981 tons

Complement:
   200 - 261

Cost:
   £0.502 million / $2.007 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 0.3 %
      - Guns: 7 tons, 0.3 %
   Armour: 7 tons, 0.2 %
      - Armament: 7 tons, 0.2 %
   Machinery: 914 tons, 30.8 %
   Hull, fittings & equipment: 1,135 tons, 38.3 %
   Fuel, ammunition & stores: 610 tons, 20.6 %
   Miscellaneous weights: 290 tons, 9.8 %
      - Hull above water: 40 tons
      - On freeboard deck: 175 tons
      - Above deck: 75 tons

Fittings:
-25 t:  L/R wireless (AD)
-50 t:  Air operations center (AD)
-50 t:  Flying-off deck, hanger, and facilities forward for two winged fighters (FD)
-100 t:  Hanger, deck, and facilities aft for four armed floatplanes (FD)
-65 t:  Weight reserve (FD and AW)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,607 lbs / 2,090 Kg = 151.0 x 3.9 " / 100 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 2.4 ft / 0.7 m
   Roll period: 12.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 100 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.480 / 0.497
   Length to Beam Ratio: 8.21 : 1
   'Natural speed' for length: 19.42 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 9.84 ft / 3.00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   10.00 %,  25.26 ft / 7.70 m,  25.26 ft / 7.70 m
      - Forward deck:   30.00 %,  17.39 ft / 5.30 m,  17.39 ft / 5.30 m
      - Aft deck:   45.00 %,  17.39 ft / 5.30 m,  17.39 ft / 5.30 m
      - Quarter deck:   15.00 %,  17.39 ft / 5.30 m,  17.39 ft / 5.30 m
      - Average freeboard:      18.18 ft / 5.54 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102.7 %
      - Above water (accommodation/working, high = better): 187.8 %
   Waterplane Area: 11,341 Square feet or 1,054 Square metres
   Displacement factor (Displacement / loading): 138 %
   Structure weight / hull surface area: 58 lbs/sq ft or 284 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.90
      - Longitudinal: 2.65
      - Overall: 1.00
   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

[The Rock Doctor]

Waz Class Seaplane Tender (Riverine)

Initial trials of the two Wezownik class riverine seaplane carriers suggested that there is some utility to the type, but also indicated that the layout was a little cramped for three aircraft.  The Waz class basically stretches the existing design in draught and length, providing for hanger space for four aircraft (wings folded) and two on-deck handling areas with individual cranes.

Unlike her predecessors, the Waz can't be built in the Baltic and then loaded onto a Borys-class sealift ship for transport across the Atlantic.  She's just a bit too long.  Nor would she be particularly seaworthy as a tow or under power with extra coal as deck cargo.  Consequently, she'll be the first ship built in the Widoknagory 100m drydock in South Erica.

Waz, LT-4, laid down 1921

Enter ship name, Enter country Enter ship type laid down 1921

Displacement:
   435 t light; 445 t standard; 458 t normal; 469 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (268.46 ft / 260.17 ft) x 29.53 ft x (3.12 / 3.18 ft)
   (81.83 m / 79.30 m) x 9.00 m  x (0.95 / 0.97 m)

Armament:
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.86lbs / 1.75kg shells, 250 per gun
     Quick firing gun in deck mount, 1921 Model
     1 x Single mount on centreline, forward deck forward
      1 raised mount
      5 - 0.39" / 10.0 mm 45.0 cal guns - 0.02lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1921 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      Weight of broadside 4 lbs / 2 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.79" / 20 mm     22.97 ft / 7.00 m   7.87 ft / 2.40 m
   Ends:   Unarmoured
     Main Belt covers 14 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   2nd:   0.79" / 20 mm   0.39" / 10 mm            -
   3rd:   0.39" / 10 mm         -               -

   - Box over machinery & magazines:
   0.79" / 20 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 316 shp / 236 Kw = 10.28 kts
   Range 1,000nm at 10.00 kts
   Bunker at max displacement = 25 tons (18% coal)

Complement:
   49 - 64

Cost:
   £0.043 million / $0.174 million

Distribution of weights at normal displacement:
   Armament: 1 tons, 0.2 %
      - Guns: 1 tons, 0.2 %
   Armour: 35 tons, 7.5 %
      - Belts: 12 tons, 2.6 %
      - Armament: 7 tons, 1.5 %
      - Armour Deck: 16 tons, 3.4 %
   Machinery: 11 tons, 2.4 %
   Hull, fittings & equipment: 241 tons, 52.6 %
   Fuel, ammunition & stores: 24 tons, 5.2 %
   Miscellaneous weights: 147 tons, 32.1 %
      - Hull below water: 5 tons
      - On freeboard deck: 117 tons
      - Above deck: 25 tons

Fittings:
-100 t:  Capacity for four armed floatplanes
-25 t:  L/R wireless
-17 t:  Weight reserve/deck cargo
-5 t:  Extra supplies

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8,136 lbs / 3,690 Kg = 266.7 x 6 " / 152 mm shells or 8.4 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.01
   Seaboat quality  (Average = 1.00): 1.13

Hull form characteristics:
   Hull has raised forecastle,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.670 / 0.672
   Length to Beam Ratio: 8.81 : 1
   'Natural speed' for length: 16.13 kts
   Power going to wave formation at top speed: 18 %
   Trim (Max stability = 0, Max steadiness = 100): 53
   Bow angle (Positive = bow angles forward): 15.00 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 %,  18.70 ft / 5.70 m,  15.75 ft / 4.80 m
      - Forward deck:   30.00 %,  7.87 ft / 2.40 m,  7.87 ft / 2.40 m
      - Aft deck:   30.00 %,  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:      10.14 ft / 3.09 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 11.7 %
      - Above water (accommodation/working, high = better): 183.4 %
   Waterplane Area: 5,993 Square feet or 557 Square metres
   Displacement factor (Displacement / loading): 222 %
   Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.98
      - Longitudinal: 1.21
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room

[The Rock Doctor]

Koziorozoc Class Seaplane Carrier

A small, fast seaplane carrier for lower intensity overseas operations.  Six planes and a catapult don't necessarily get your very far, but it can get you a decent search package and a couple of float fighters to shoot down snoopers or the other guy's artillery spotters.  If you're out in the Atlantic with a cruiser or a couple of torpedo boats, it might make the difference between catching a raider or missing it entirely.

Koziorozoc, LT-08, laid down 1927
Baran, LT-09, laid down 1927
Byk, LT-10, laid down 1928
Zrebiecia, LT-11, laid down 1928

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

Displacement:
   4,363 t light; 4,509 t standard; 5,231 t normal; 5,808 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (451.87 ft / 442.91 ft) x 52.49 ft x (15.75 / 17.05 ft)
   (137.73 m / 135.00 m) x 16.00 m  x (4.80 / 5.20 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
     2 x 2-gun mounts on centreline, forward evenly spread
      1 raised mount
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.75kg shells, 250 per gun
     Anti-air guns in deck mounts, 1927 Model
     4 x Single mounts on sides, evenly spread
      4 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, 1927 Model
     8 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 287 lbs / 130 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   1.18" / 30 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm   0.59" / 15 mm            -
   3rd:   0.59" / 15 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 2 shafts, 67,024 shp / 50,000 Kw = 32.05 kts
   Range 20,000nm at 10.00 kts
   Bunker at max displacement = 1,299 tons

Complement:
   306 - 399

Cost:
   £1.730 million / $6.922 million

Distribution of weights at normal displacement:
   Armament: 77 tons, 1.5 %
   Armour: 42 tons, 0.8 %
      - Armament: 42 tons, 0.8 %
   Machinery: 2,116 tons, 40.4 %
   Hull, fittings & equipment: 1,827 tons, 34.9 %
   Fuel, ammunition & stores: 868 tons, 16.6 %
   Miscellaneous weights: 301 tons, 5.8 %
      - Hull above water: 77 tons
      - On freeboard deck: 134 tons
      - Above deck: 90 tons

Fittings:
-155t:  6 armed floatplanes and a catapult (AW/FD)
-5 t:  Second catapult on the hanger (AD)
-35 t:  L/R radio and redundant S/R radio (AD)
-10 t:  Nightfighting doodads (AD)
-50 t:  Air operations center (AD/FD)
-8 t:  1918 fire control (AD)
-7 + 31 t:  Weight reserve (AD/FD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,625 lbs / 1,644 Kg = 54.1 x 5.1 " / 130 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.7 ft / 0.8 m
   Roll period: 13.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.15
   Seaboat quality  (Average = 1.00): 1.09

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.500 / 0.513
   Length to Beam Ratio: 8.44 : 1
   'Natural speed' for length: 21.05 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 64
   Bow angle (Positive = bow angles forward): 20.00 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 %,  24.61 ft / 7.50 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 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Quarter deck:   15.00 %,  19.69 ft / 6.00 m,  19.69 ft / 6.00 m
      - Average freeboard:      20.08 ft / 6.12 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 137.8 %
      - Above water (accommodation/working, high = better): 189.8 %
   Waterplane Area: 15,491 Square feet or 1,439 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 71 lbs/sq ft or 345 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.81
      - Longitudinal: 2.26
      - Overall: 0.90
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform