Patrol Craft: Sloops, cutters, korweta, coastal escorts, etc.

[The Rock Doctor]

Yes!

[The Rock Doctor]

Type 1908 Cutter

1-10, laid down 1908
11-18, laid down 1911
19-22, laid down 1912

#1 to #10 scrapped 1933

Enter ship name, Enter country Enter ship type laid down 1908

Displacement:
   388 t light; 401 t standard; 460 t normal; 507 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (153.70 ft / 147.64 ft) x 24.61 ft x (9.84 / 10.56 ft)
   (46.85 m / 45.00 m) x 7.50 m  x (3.00 / 3.22 m)

Armament:
      1 - 3.94" / 100.0 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 150 per gun
     Quick firing gun in deck mount, 1908 Model
     1 x Single mount on centreline, forward deck centre
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.74kg shells, 150 per gun
     Quick firing gun in deck mount, 1908 Model
     1 x Single mount on centreline, aft deck centre
      2 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 5,000 per gun
     Machine guns in deck mounts, 1908 Model
     2 x Single mounts on sides amidships
      2 raised mounts
      Weight of broadside 35 lbs / 16 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.39" / 10 mm   0.20" / 5 mm            -
   2nd:   0.39" / 10 mm   0.20" / 5 mm            -
   3rd:   0.20" / 5 mm         -               -

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 1,012 ihp / 755 Kw = 14.72 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 107 tons (100% coal)

Complement:
   49 - 64

Cost:
   £0.028 million / $0.113 million

Distribution of weights at normal displacement:
   Armament: 6 tons, 1.4 %
      - Guns: 6 tons, 1.4 %
   Armour: 3 tons, 0.8 %
      - Armament: 3 tons, 0.8 %
   Machinery: 92 tons, 20.0 %
   Hull, fittings & equipment: 156 tons, 34.0 %
   Fuel, ammunition & stores: 71 tons, 15.5 %
   Miscellaneous weights: 130 tons, 28.3 %
      - On freeboard deck: 130 tons

Fittings (as of 2/16 refit)
-15 t:  Enhanced hydrophone package
-10 t:  ASW weapons (100 x 90 kg DC)
-8 t:  2x1 1913 21" torpedoes, no reloads
-25 t:  LR wireless
-2 t:  1912 fire control
-20 t:  Accommodation for ten marines or law enforcement personnel
-20 t:  Rails for 20 mines
-30 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     945 lbs / 429 Kg = 31.0 x 3.9 " / 100 mm shells or 0.7 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 11.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.10
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a round stern
   Block coefficient (normal/deep): 0.450 / 0.463
   Length to Beam Ratio: 6.00 : 1
   'Natural speed' for length: 12.15 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 25
   Bow angle (Positive = bow angles forward): 10.00 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 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Forward deck:   30.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Aft deck:   35.00 %,  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:      11.81 ft / 3.60 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 69.8 %
      - Above water (accommodation/working, high = better): 103.7 %
   Waterplane Area: 2,317 Square feet or 215 Square metres
   Displacement factor (Displacement / loading): 138 %
   Structure weight / hull surface area: 31 lbs/sq ft or 154 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.77
      - Longitudinal: 9.76
      - Overall: 1.00
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[The Rock Doctor]

Liedtke Class Armored Patrol Sloop

Captain Hans Liedtke and his crew fought hard, but in the end - as reported in the 2H12 news - they were unable to prevent the loss of their ship and their lives in a gale in the Dragon's Tail (OTL Strait of Magellan).

Recognizing that its existing inventory of patrol craft were often incapable of patrol and search and rescue in the treacherous waters at the very southern tip of the Ericas, the Union Navy has proposed the construction of three so-called Armored Patrol Sloops to be based at Hiekka Niemeke (OTL Punta Arenas).  As the designation suggests, the class is extensively armored to protect against floating ice and collisions with other vessels, such as when coming alongside for inspections and rescues.  Even the underwater hull is protected against possible groundings in the relatively poorly charted waters.

Above water, the ship is kitted out with a towing rig, extra boats and cranes for rescue operations, and water cannons for fire-fighting.  Internally, the ship has additional medical facilities to treat casualties and an area of crowded, emergency bunking for survivors or other short-duration passengers.   A long-range wireless is fitted for communications purposes.

The ship is not heavily armed, and the main battery is mounted high on the centerline, to reduce wetness in bad seas and to avoid being destroyed in collisions and boarding operations.  That being said, the primary enemy of this type is the weather - not other ships.

Hans Liedtke, laid down 1913
Otto Bismarck, laid down 1914
Franz Hipper, laid down 1914

Hans Liedtke, Armored Patrol Sloop laid down 1913

Displacement:
   1,588 t light; 1,633 t standard; 1,767 t normal; 1,875 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (237.10 ft / 229.66 ft) x 42.65 ft x (11.48 / 12.03 ft)
   (72.27 m / 70.00 m) x 13.00 m  x (3.50 / 3.67 m)

Armament:
      2 - 3.94" / 100 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Breech loading guns in deck mounts, 1913 Model
     2 x Single mounts on centreline, evenly spread
      2 raised mounts
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1913 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 62 lbs / 28 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   0.98" / 25 mm   182.09 ft / 55.50 m   15.75 ft / 4.80 m
   Ends:   0.98" / 25 mm     47.54 ft / 14.49 m   7.87 ft / 2.40 m
   Upper:   0.98" / 25 mm   114.83 ft / 35.00 m   7.87 ft / 2.40 m
     Main Belt covers 122 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
      1.97" / 50 mm   149.28 ft / 45.50 m   10.83 ft / 3.30 m
   Beam between torpedo bulkheads 29.53 ft / 9.00 m

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 8,043 shp / 6,000 Kw = 20.47 kts
   Range 5,000nm at 10.00 kts
   Bunker at max displacement = 242 tons

Complement:
   136 - 177

Cost:
   £0.112 million / $0.448 million

Distribution of weights at normal displacement:
   Armament: 10 tons, 0.6 %
      - Guns: 10 tons, 0.6 %
   Armour: 312 tons, 17.6 %
      - Belts: 176 tons, 10.0 %
      - Torpedo bulkhead: 118 tons, 6.7 %
      - Armament: 18 tons, 1.0 %
   Machinery: 315 tons, 17.8 %
   Hull, fittings & equipment: 566 tons, 32.0 %
   Fuel, ammunition & stores: 179 tons, 10.2 %
   Miscellaneous weights: 386 tons, 21.8 %
      - Hull above water: 100 tons
      - On freeboard deck: 236 tons
      - Above deck: 50 tons

Fittings:
-150 t:  Towing rig
-50 t:  Extra boats, fire-fighting stuff
-100 t:  Extra short-term accommodation, enhanced sick bay
-50 t:  L/R Wireless (redundant)
-36 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     4,083 lbs / 1,852 Kg = 133.8 x 3.9 " / 100 mm shells or 1.5 torpedoes
   Stability (Unstable if below 1.00): 1.32
   Metacentric height 2.3 ft / 0.7 m
   Roll period: 11.9 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.03
   Seaboat quality  (Average = 1.00): 1.32

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.550 / 0.557
   Length to Beam Ratio: 5.38 : 1
   'Natural speed' for length: 15.15 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 45
   Bow angle (Positive = bow angles forward): 10.00 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 %,  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): 96.8 %
      - Above water (accommodation/working, high = better): 147.9 %
   Waterplane Area: 6,836 Square feet or 635 Square metres
   Displacement factor (Displacement / loading): 130 %
   Structure weight / hull surface area: 51 lbs/sq ft or 250 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.84
      - Longitudinal: 4.44
      - Overall: 1.00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Type 1917 Submarine Chaser

As part of a build-up on its anti-submarine capabilities, the Vilnius Union will build a good-sized batch of submarine chasers ("Ścigacz okrętów podwodnych").  With a basic hydrophone package, two quick-firing guns, and a bunch of depth charges, it's expected to be a serious threat to a submarine it happens to encounter - or at least make life difficult for said submarine.

SOP-1 & -2, laid down 1917
SOP-3 to -6, laid down 1918
SOP-7 to -10, laid down 1919

Enter ship name, Enter country Enter ship type laid down 1917

Displacement:
   201 t light; 206 t standard; 220 t normal; 231 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (138.21 ft / 131.23 ft) x 19.03 ft x (6.56 / 6.80 ft)
   (42.13 m / 40.00 m) x 5.80 m  x (2.00 / 2.07 m)

Armament:
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1917 Model
     2 x Single mounts on centreline, evenly spread
      3 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 4,000 per gun
     Machine guns in deck mounts, 1917 Model
     2 x Single mounts on sides, aft deck forward
      2 raised mounts
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 8 lbs / 4 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.12" / 3 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 2,413 shp / 1,800 Kw = 19.95 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 25 tons

Complement:
   28 - 37

Cost:
   £0.036 million / $0.145 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0.8 %
      - Guns: 2 tons, 0.8 %
   Armour: 3 tons, 1.2 %
      - Armament: 3 tons, 1.2 %
   Machinery: 88 tons, 40.2 %
   Hull, fittings & equipment: 89 tons, 40.3 %
   Fuel, ammunition & stores: 20 tons, 8.9 %
   Miscellaneous weights: 19 tons, 8.6 %
      - Hull below water: 5 tons
      - On freeboard deck: 14 tons

Fittings:
-5 t:  Basic hydrophone package (below water)
-1 t:  1912 fire control
-13 t:  ASW weaponry (130 x 90 kg DC)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     188 lbs / 85 Kg = 49.3 x 2.0 " / 50 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 10.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.05
   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): 0.470 / 0.476
   Length to Beam Ratio: 6.90 : 1
   'Natural speed' for length: 11.46 kts
   Power going to wave formation at top speed: 72 %
   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:   20.00 %,  13.78 ft / 4.20 m,  11.81 ft / 3.60 m
      - Forward deck:   30.00 %,  11.81 ft / 3.60 m,  7.87 ft / 2.40 m
      - Aft deck:   35.00 %,  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:      9.41 ft / 2.87 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 135.2 %
      - Above water (accommodation/working, high = better): 96.8 %
   Waterplane Area: 1,620 Square feet or 151 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 25 lbs/sq ft or 124 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.79
      - Longitudinal: 8.48
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room

[The Rock Doctor]

Type 1917 Korweta

Complementing the submarine chaser would be a larger corvette ("korweta") with a heavier armament, enhanced hydrophone package, and electric drives to allow more precise maneuvering in pursuit of targets.  It's still a coastal defence vessel, though - not long-legged for cross-ocean work.

KR-1 & -2, laid down 1917
KR-3 to -6, laid down 1918
KR-7 to -10, laid down 1919

Enter ship name, Enter country Enter ship type laid down 1917

Displacement:
   442 t light; 458 t standard; 490 t normal; 516 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (162.59 ft / 157.48 ft) x 24.61 ft x (9.84 / 10.21 ft)
   (49.56 m / 48.00 m) x 7.50 m  x (3.00 / 3.11 m)

Armament:
      1 - 3.94" / 100 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing gun in deck mount, 1917 Model
     1 x Single mount on centreline, forward deck centre
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1917 Model
     2 x Single mounts on centreline, evenly spread
      2 raised mounts
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1917 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 39 lbs / 18 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.12" / 3 mm            -
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -
   3rd:   0.79" / 20 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 2 shafts, 4,022 shp / 3,000 Kw = 20.46 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 59 tons

Complement:
   51 - 67

Cost:
   £0.069 million / $0.277 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 1.5 %
      - Guns: 7 tons, 1.5 %
   Armour: 12 tons, 2.3 %
      - Armament: 12 tons, 2.3 %
   Machinery: 147 tons, 30.1 %
   Hull, fittings & equipment: 197 tons, 40.3 %
   Fuel, ammunition & stores: 49 tons, 9.9 %
   Miscellaneous weights: 78 tons, 15.9 %
      - Hull below water: 52 tons
      - On freeboard deck: 24 tons
      - Above deck: 2 tons

Fittings:
-37 t:  T-E drive (below water)
-15 t:  Enhanced hydrophone package (below water)
-1 t:  1912 fire control
-15 t:  A/S weaponry (150 x 90 kg DC)
-10 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     605 lbs / 274 Kg = 19.8 x 3.9 " / 100 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.28
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 10.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.15
   Seaboat quality  (Average = 1.00): 1.58

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.457
   Length to Beam Ratio: 6.40 : 1
   'Natural speed' for length: 12.55 kts
   Power going to wave formation at top speed: 70 %
   Trim (Max stability = 0, Max steadiness = 100): 38
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 1.64 ft / 0.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.69 ft / 6.00 m,  15.75 ft / 4.80 m
      - Forward deck:   40.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Aft deck:   25.00 %,  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:      12.91 ft / 3.94 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 114.0 %
      - Above water (accommodation/working, high = better): 117.4 %
   Waterplane Area: 2,472 Square feet or 230 Square metres
   Displacement factor (Displacement / loading): 122 %
   Structure weight / hull surface area: 34 lbs/sq ft or 167 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.76
      - Longitudinal: 12.44
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[The Rock Doctor]

Quakenbruck Class Sloop

A decently armed, mostly unarmored sloop.  It would serve a few functions - trade protection and inspection, escort of naval auxiliaries.

I went back to single 130mm as the beam seemed a bit narrow for twins.

The 50mm secondary is for close-in deterrence/bang during inspections and other boarding actions.  The conning tower is armored against small-arms fire in case the inspectees are feeling their oats that day.

The range and speed would allow a decent operating radius across the Atlantic and the seakeeping is reasonable for that as well.

Quakenbruck, SL-4, laid down 1920
Quibdo, SL-5, laid down 1920
Rostock, SL-6, laid down 1920
Regensburg, SL-7, laid down 1920
Riga, SL-8, laid down 1921
Rauma, SL-9, laid down 1921
Randers, SL-10, laid down 1921
Roskilde, SL-11, laid down 1921
Rzeszow, SL-12, laid down 1922
Rovaniemi, SL-13, laid down 1922
Radom, SL-14, laid down 1922
Ringkoping, SL-15, laid down 1922

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

Displacement:
   1,708 t light; 1,789 t standard; 2,050 t normal; 2,258 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (327.20 ft / 314.96 ft) x 37.73 ft x (13.12 / 14.08 ft)
   (99.73 m / 96.00 m) x 11.50 m  x (4.00 / 4.29 m)

Armament:
      4 - 5.12" / 130 mm 45.0 cal guns - 67.62lbs / 30.67kg shells, 250 per gun
     Quick firing guns in deck and hoist mounts, 1920 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      3 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 250 per gun
     Quick firing guns in deck mounts, 1920 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
     1 x Single mount on centreline, aft deck forward
      1 double raised mount
      4 - 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
     4 x Single mounts on sides, evenly spread
      4 double raised mounts
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.86lbs / 1.75kg shells, 20 per gun
     Anti-air guns in deck mounts, 1920 Model
     2 x Single mounts on sides amidships
      2 raised mounts
      Weight of broadside 290 lbs / 131 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   0.79" / 20 mm   0.79" / 20 mm            -
   4th:   0.79" / 20 mm   0.79" / 20 mm            -

   - Conning towers: Forward 0.98" / 25 mm, Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 18,766 shp / 14,000 Kw = 26.26 kts
   Range 12,000nm at 10.00 kts
   Bunker at max displacement = 469 tons

Complement:
   152 - 198

Cost:
   £0.422 million / $1.688 million

Distribution of weights at normal displacement:
   Armament: 77 tons, 3.8 %
      - Guns: 77 tons, 3.8 %
   Armour: 53 tons, 2.6 %
      - Armament: 49 tons, 2.4 %
      - Conning Tower: 3 tons, 0.2 %
   Machinery: 656 tons, 32.0 %
   Hull, fittings & equipment: 766 tons, 37.3 %
   Fuel, ammunition & stores: 341 tons, 16.6 %
   Miscellaneous weights: 157 tons, 7.7 %
      - Hull below water: 15 tons
      - On freeboard deck: 57 tons
      - Above deck: 85 tons

Fittings:
-7 t:  Fire control
-50 t:  Command facilities
-25 t :  L/R wireless
-12 t:  Triple heavyweight torpedo carriage
-15 t:  ASW ordnance (4 x T-DCT, 55 x 195 kg DC)
-15 t:  Enhanced Hydrophone Package
-10 t:  Night-fighting doodads
-23 t:  Weight reserve


Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,867 lbs / 847 Kg = 27.8 x 5.1 " / 130 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 1.5 ft / 0.5 m
   Roll period: 13.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.45
   Seaboat quality  (Average = 1.00): 1.37

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.460 / 0.472
   Length to Beam Ratio: 8.35 : 1
   'Natural speed' for length: 17.75 kts
   Power going to wave formation at top speed: 62 %
   Trim (Max stability = 0, Max steadiness = 100): 44
   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 %,  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 %,  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:      16.14 ft / 4.92 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 117.7 %
      - Above water (accommodation/working, high = better): 147.9 %
   Waterplane Area: 7,643 Square feet or 710 Square metres
   Displacement factor (Displacement / loading): 115 %
   Structure weight / hull surface area: 55 lbs/sq ft or 267 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.77
      - Longitudinal: 3.47
      - Overall: 0.90
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Type 1920 Korweta

A mild modification of the Type 1917 korweta, with a half-knot of extra speed at the expense of some weight reserve.

KR-11 to -16, laid down 1920
KR-17 to -20, laid down 1921
KR-21 to -24, laid down 1922

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

Displacement:
   445 t light; 461 t standard; 490 t normal; 514 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (162.59 ft / 157.48 ft) x 24.61 ft x (9.84 / 10.18 ft)
   (49.56 m / 48.00 m) x 7.50 m  x (3.00 / 3.10 m)

Armament:
      1 - 3.94" / 100 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing gun in deck mount, 1920 Model
     1 x Single mount on centreline, forward deck centre
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1920 Model
     2 x Single mounts on centreline, evenly spread
      2 raised mounts
      4 - 0.39" / 10.0 mm 45.0 cal guns - 0.03lbs / 0.01kg shells, 15,000 per gun
     Machine guns in deck mounts, 1920 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 39 lbs / 18 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.12" / 3 mm            -
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -
   3rd:   0.79" / 20 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 4,423 shp / 3,300 Kw = 20.92 kts
   Range 3,000nm at 10.00 kts
   Bunker at max displacement = 53 tons

Complement:
   51 - 67

Cost:
   £0.093 million / $0.371 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 1.5 %
      - Guns: 7 tons, 1.5 %
   Armour: 12 tons, 2.3 %
      - Armament: 12 tons, 2.3 %
   Machinery: 155 tons, 31.5 %
   Hull, fittings & equipment: 198 tons, 40.4 %
   Fuel, ammunition & stores: 46 tons, 9.3 %
   Miscellaneous weights: 73 tons, 14.9 %
      - Hull below water: 52 tons
      - On freeboard deck: 20 tons
      - Above deck: 1 tons

Fittings:
-37 t:  T-E drive (below water)
-15 t:  Enhanced hydrophone package (below water)
-1 t:  1912 fire control (AD)
-15 t:  A/S weaponry (FD) (2 x T-DCT, 65 x 195 kg DC)
-5 t:  Weight reserve (FD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     562 lbs / 255 Kg = 18.4 x 3.9 " / 100 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.30
   Metacentric height 1.0 ft / 0.3 m
   Roll period: 10.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 56 %
         - Recoil effect (Restricted arc if above 1.00): 0.15
   Seaboat quality  (Average = 1.00): 1.48

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.456
   Length to Beam Ratio: 6.40 : 1
   'Natural speed' for length: 12.55 kts
   Power going to wave formation at top speed: 71 %
   Trim (Max stability = 0, Max steadiness = 100): 38
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 1.64 ft / 0.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.69 ft / 6.00 m,  15.75 ft / 4.80 m
      - Forward deck:   40.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Aft deck:   25.00 %,  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:      12.91 ft / 3.94 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 118.7 %
      - Above water (accommodation/working, high = better): 117.4 %
   Waterplane Area: 2,472 Square feet or 230 Square metres
   Displacement factor (Displacement / loading): 119 %
   Structure weight / hull surface area: 34 lbs/sq ft or 168 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.76
      - Longitudinal: 12.47
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Type 1920 Submarine Chaser

An incrementally faster version of the 1917 chaser.  Go figure.  The EP-1 coastal escort (below) will be the spiritual successor to the type.

SOP-11 to -17, laid down 1920
SOP-18 to -27, laid down 1921
SOP-28 to -33, laid down 1922
SOP-34 to -35, laid down 1923
SOP-36, laid down 1924

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

Displacement:
   202 t light; 207 t standard; 220 t normal; 230 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (138.21 ft / 131.23 ft) x 19.03 ft x (6.56 / 6.78 ft)
   (42.13 m / 40.00 m) x 5.80 m  x (2.00 / 2.07 m)

Armament:
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1920 Model
     2 x Single mounts on centreline, evenly spread
      3 - 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
     2 x Single mounts on sides, aft deck forward
      2 raised mounts
     1 x Single mount on centreline, forward deck centre
      1 raised mount
      Weight of broadside 8 lbs / 4 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.12" / 3 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 2,547 shp / 1,900 Kw = 20.20 kts
   Range 2,000nm at 10.00 kts
   Bunker at max displacement = 23 tons

Complement:
   28 - 37

Cost:
   £0.047 million / $0.189 million

Distribution of weights at normal displacement:
   Armament: 2 tons, 0.8 %
      - Guns: 2 tons, 0.8 %
   Armour: 3 tons, 1.2 %
      - Armament: 3 tons, 1.2 %
   Machinery: 89 tons, 40.5 %
   Hull, fittings & equipment: 89 tons, 40.6 %
   Fuel, ammunition & stores: 18 tons, 8.3 %
   Miscellaneous weights: 19 tons, 8.6 %
      - Hull below water: 5 tons
      - On freeboard deck: 14 tons

Fittings:
-5 t:  Basic hydrophone package (below water)
-1 t:  1912 fire control
-13 t:  ASW weaponry (2 x T-DCT, 55 x 195 kg DC)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     184 lbs / 84 Kg = 48.3 x 2.0 " / 50 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.18
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 10.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.05
   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): 0.470 / 0.476
   Length to Beam Ratio: 6.90 : 1
   'Natural speed' for length: 11.46 kts
   Power going to wave formation at top speed: 72 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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 %,  13.78 ft / 4.20 m,  11.81 ft / 3.60 m
      - Forward deck:   30.00 %,  11.81 ft / 3.60 m,  7.87 ft / 2.40 m
      - Aft deck:   35.00 %,  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:      9.41 ft / 2.87 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 136.1 %
      - Above water (accommodation/working, high = better): 96.8 %
   Waterplane Area: 1,620 Square feet or 151 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 26 lbs/sq ft or 125 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.79
      - Longitudinal: 8.54
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room

[The Rock Doctor]

Type 1923 Korweta

The third batch of korweta has heavier machine guns and a couple more tonnes of payload.  Otherwise, if it ain't broke, why fix it?

KR-25 to -26, laid down 1923
KR-27, laid down 1924

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   437 t light; 453 t standard; 490 t normal; 520 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (162.59 ft / 157.48 ft) x 24.61 ft x (9.84 / 10.27 ft)
   (49.56 m / 48.00 m) x 7.50 m  x (3.00 / 3.13 m)

Armament:
      1 - 3.94" / 100 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing gun in deck mount, 1923 Model
     1 x Single mount on centreline, forward deck centre
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Quick firing guns in deck mounts, 1923 Model
     2 x Single mounts on centreline, evenly spread
      2 raised mounts
      4 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 39 lbs / 18 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.97" / 50 mm   0.12" / 3 mm            -
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -
   3rd:   0.79" / 20 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 4,424 shp / 3,300 Kw = 20.92 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 67 tons

Complement:
   51 - 67

Cost:
   £0.111 million / $0.443 million

Distribution of weights at normal displacement:
   Armament: 8 tons, 1.6 %
      - Guns: 8 tons, 1.6 %
   Armour: 9 tons, 1.9 %
      - Armament: 9 tons, 1.9 %
   Machinery: 148 tons, 30.2 %
   Hull, fittings & equipment: 197 tons, 40.1 %
   Fuel, ammunition & stores: 54 tons, 10.9 %
   Miscellaneous weights: 75 tons, 15.3 %
      - Hull below water: 52 tons
      - On freeboard deck: 22 tons
      - Above deck: 1 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     586 lbs / 266 Kg = 19.2 x 3.9 " / 100 mm shells or 0.4 torpedoes
   Stability (Unstable if below 1.00): 1.23
   Metacentric height 0.9 ft / 0.3 m
   Roll period: 11.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.17
   Seaboat quality  (Average = 1.00): 1.49

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.458
   Length to Beam Ratio: 6.40 : 1
   'Natural speed' for length: 12.55 kts
   Power going to wave formation at top speed: 71 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   Bow angle (Positive = bow angles forward): 10.00 degrees
   Stern overhang: 1.64 ft / 0.50 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20.00 %,  19.69 ft / 6.00 m,  15.75 ft / 4.80 m
      - Forward deck:   40.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Aft deck:   25.00 %,  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:      12.91 ft / 3.94 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 114.5 %
      - Above water (accommodation/working, high = better): 117.4 %
   Waterplane Area: 2,472 Square feet or 230 Square metres
   Displacement factor (Displacement / loading): 123 %
   Structure weight / hull surface area: 34 lbs/sq ft or 167 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.75
      - Longitudinal: 12.48
      - Overall: 1.00
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Type 1923 Coastal Escort

Scuttlebutt coming out of the nearby war - maybe a few of those 80,000 internees mentioned it in passing, who knows - is that airplanes are proving a bit more problematic than the Union might have anticipated.

The Union's existing complement of patrol vessels do not, thus far, feature much of an AA suite; they've mostly been built for observation and ASW.  A new coastal escort/patrol vessel would offer some decent all-round capability for its size.

This has a single 100mm gun for anti-surface work, and two 50mm AA guns to swat down bad guys.  A pair of fixed 450mm torpedoes offer a limited ability to threaten big bads or scuttle bad friendlies.  Hydrophones and a small suite of depth charges allow it to keep a submarine honest for a short time.

EP-1, laid down 1923
EP-2 to -4, laid down 1924
EP-5 to -6, laid down 1925
EP-7 to -12, laid down 1925

Enter ship name, Enter country Enter ship type laid down 1923

Displacement:
   250 t light; 261 t standard; 281 t normal; 296 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (147.17 ft / 137.80 ft) x 19.69 ft x (7.87 / 8.18 ft)
   (44.86 m / 42.00 m) x 6.00 m  x (2.40 / 2.49 m)

Armament:
      1 - 3.94" / 100.0 mm 45.0 cal gun - 30.77lbs / 13.96kg shells, 250 per gun
     Quick firing gun in deck mount, 1923 Model
     1 x Single mount on centreline, forward deck forward
      1 raised mount
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Anti-air guns in deck mounts, 1923 Model
     2 x Single mounts on centreline, aft evenly spread
      1 raised mount
      2 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1923 Model
     2 x Single mounts on sides, evenly spread
      2 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   0.12" / 3 mm            -
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 2,948 shp / 2,200 Kw = 20.34 kts
   Range 2,800nm at 10.00 kts
   Bunker at max displacement = 35 tons

Complement:
   33 - 44

Cost:
   £0.071 million / $0.286 million

Distribution of weights at normal displacement:
   Armament: 7 tons, 2.7 %
   Armour: 3 tons, 1.0 %
      - Armament: 3 tons, 1.0 %
   Machinery: 99 tons, 35.1 %
   Hull, fittings & equipment: 114 tons, 40.7 %
   Fuel, ammunition & stores: 31 tons, 10.9 %
   Miscellaneous weights: 27 tons, 9.6 %
      - Hull below water: 15 tons
      - On freeboard deck: 11 tons
      - Above deck: 1 tons

Fittings:
-1t:  1918 fire control (AD)
-4t:  2x1 450mm torpedos, fixed to fire just off the bows.
-6t:  ASW weapons (2 x T-DCT, 20 x 195 kg DC)
-1t:  Weight reserve
-15t:  Enhanced hydrophone package

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     242 lbs / 110 Kg = 7.9 x 3.9 " / 100 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.11
   Metacentric height 0.5 ft / 0.2 m
   Roll period: 11.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.37
   Seaboat quality  (Average = 1.00): 1.26

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.460 / 0.467
   Length to Beam Ratio: 7.00 : 1
   'Natural speed' for length: 11.74 kts
   Power going to wave formation at top speed: 71 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   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 %,  16.73 ft / 5.10 m,  12.80 ft / 3.90 m
      - Forward deck:   20.00 %,  12.80 ft / 3.90 m,  8.86 ft / 2.70 m
      - Aft deck:   45.00 %,  8.86 ft / 2.70 m,  8.86 ft / 2.70 m
      - Quarter deck:   15.00 %,  8.86 ft / 2.70 m,  8.86 ft / 2.70 m
      - Average freeboard:      10.35 ft / 3.16 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 127.9 %
      - Above water (accommodation/working, high = better): 95.3 %
   Waterplane Area: 1,745 Square feet or 162 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 29 lbs/sq ft or 140 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.77
      - Longitudinal: 10.83
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Type 1924 Korweta

The 1924 korweta class is somewhat longer and heavier than preceding types, and the flush deck gives her a decidedly chonky appearance.

The class replaces two 50mm QF with a second 100mm QF and a 50mm AA mount, both aft.  Operating range is increased.

The higher aft freeboard and longer enclosed superstructure should make the ship more habitable and workable in rough sea conditions.

KR-28, laid down 1924
KR-29, laid down 1925
KR-30, laid down 1925
KR-31, laid down 1926
KR-32, laid down 1926

Korweta, type laid down 1924

Displacement:
   500 t light; 523 t standard; 564 t normal; 596 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (170.79 ft / 164.04 ft) x 24.93 ft x (9.84 / 10.26 ft)
   (52.06 m / 50.00 m) x 7.60 m  x (3.00 / 3.13 m)

Armament:
      2 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 300 per gun
     Quick firing guns in deck mounts, 1924 Model
     2 x Single mounts on centreline, evenly spread
      1 - 1.97" / 50.0 mm 45.0 cal gun - 3.85lbs / 1.75kg shells, 300 per gun
     Anti-air gun in deck mount, 1924 Model
     1 x Single mount on centreline, aft deck forward
      1 raised mount
      4 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1924 Model
     4 x Single mounts on sides amidships
      4 raised mounts
      Weight of broadside 66 lbs / 30 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.12" / 3 mm            -
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 2 shafts, 4,557 shp / 3,400 Kw = 20.66 kts
   Range 4,000nm at 10.00 kts
   Bunker at max displacement = 73 tons

Complement:
   57 - 75

Cost:
   £0.130 million / $0.518 million

Distribution of weights at normal displacement:
   Armament: 12 tons, 2.2 %
   Armour: 4 tons, 0.6 %
      - Armament: 4 tons, 0.6 %
   Machinery: 150 tons, 26.6 %
   Hull, fittings & equipment: 256 tons, 45.4 %
   Fuel, ammunition & stores: 64 tons, 11.3 %
   Miscellaneous weights: 78 tons, 13.8 %
      - Hull below water: 53 tons
      - On freeboard deck: 23 tons
      - Above deck: 2 tons

Fittings:
-38 t:  T-E drive (BW)
-15 t:  Enhanced hydrophone package (BW)
-15 t:  ASW munitions (FD) (2 x Y-DCT, 39 x 280 kg DC)
-6 t:  Weight reserve (FD)
-2t:  1918 Fire control (AD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     877 lbs / 398 Kg = 28.7 x 3.9 " / 100 mm shells or 0.5 torpedoes
   Stability (Unstable if below 1.00): 1.16
   Metacentric height 0.8 ft / 0.2 m
   Roll period: 11.6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.27
   Seaboat quality  (Average = 1.00): 2.00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.490 / 0.497
   Length to Beam Ratio: 6.58 : 1
   'Natural speed' for length: 12.81 kts
   Power going to wave formation at top speed: 70 %
   Trim (Max stability = 0, Max steadiness = 100): 35
   Bow angle (Positive = bow angles forward): 10.00 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 %,  19.69 ft / 6.00 m,  15.75 ft / 4.80 m
      - Forward deck:   20.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Aft deck:   45.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Quarter deck:   15.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
      - Average freeboard:      16.06 ft / 4.90 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 104.3 %
      - Above water (accommodation/working, high = better): 142.1 %
   Waterplane Area: 2,701 Square feet or 251 Square metres
   Displacement factor (Displacement / loading): 136 %
   Structure weight / hull surface area: 34 lbs/sq ft or 164 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.70
      - Longitudinal: 24.72
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[The Rock Doctor]

Type 1926 Coastal Escort

The 1926 coastal escort takes advantage of slightly lighter machinery and trades some hull strength and anti-surface punch for the addition of a sonar dome, a bit more oil, and a bit more miscellaneous weight.

EP-13 to -20, laid down 1926
EP-21 to -28, laid down 1927
EP-29 to -38, laid down 1928
EP-39 to -46, laid down 1929
EP-47 to -54, laid down 1930

Enter ship name, Enter country Enter ship type laid down 1926

Displacement:
   250 t light; 260 t standard; 281 t normal; 297 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (147.17 ft / 137.80 ft) x 19.69 ft x (7.87 / 8.20 ft)
   (44.86 m / 42.00 m) x 6.00 m  x (2.40 / 2.50 m)

Armament:
      1 - 2.95" / 75.0 mm 45.0 cal gun - 12.98lbs / 5.89kg shells, 300 per gun
     Quick firing gun in deck mount, 1926 Model
     1 x Single mount on centreline, forward deck forward
      1 raised mount
      2 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 250 per gun
     Anti-air guns in deck mounts, 1926 Model
     2 x Single mounts on centreline, aft evenly spread
      1 raised mount
      4 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1926 Model
     2 x Twin mounts on sides amidships
      2 raised mounts
      Weight of broadside 21 lbs / 10 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.79" / 20 mm   0.12" / 3 mm            -
   2nd:   0.79" / 20 mm   0.12" / 3 mm            -
   3rd:   0.59" / 15 mm         -               -

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 2,948 shp / 2,200 Kw = 20.34 kts
   Range 3,100nm at 10.00 kts
   Bunker at max displacement = 37 tons

Complement:
   33 - 44

Cost:
   £0.080 million / $0.321 million

Distribution of weights at normal displacement:
   Armament: 5 tons, 1.6 %
   Armour: 5 tons, 1.6 %
      - Armament: 5 tons, 1.6 %
   Machinery: 94 tons, 33.6 %
   Hull, fittings & equipment: 105 tons, 37.3 %
   Fuel, ammunition & stores: 30 tons, 10.8 %
   Miscellaneous weights: 42 tons, 15.0 %
      - Hull below water: 25 tons
      - On freeboard deck: 16 tons
      - Above deck: 1 tons

Fittings:
-15t:  Enhanced hydrophone package (BW)
-10t:  Sonar (BW)
-4t:  2x1 450mm torpedoes, fixed to fire just off the bows (FD)
-8t:  ASW weapons (FD) (2 Y-DCT, 18 x 280 kg DC)
-2t:  Nightfighting doodads (FD)
-2 t:  Weight reserve (FD)
-1 t:  1918 fire control (AD)

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     241 lbs / 109 Kg = 18.7 x 3.0 " / 75 mm shells or 0.3 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 0.6 ft / 0.2 m
   Roll period: 11.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.20
   Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.460 / 0.467
   Length to Beam Ratio: 7.00 : 1
   'Natural speed' for length: 11.74 kts
   Power going to wave formation at top speed: 71 %
   Trim (Max stability = 0, Max steadiness = 100): 55
   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 %,  16.73 ft / 5.10 m,  12.80 ft / 3.90 m
      - Forward deck:   20.00 %,  12.80 ft / 3.90 m,  8.86 ft / 2.70 m
      - Aft deck:   45.00 %,  8.86 ft / 2.70 m,  8.86 ft / 2.70 m
      - Quarter deck:   15.00 %,  8.86 ft / 2.70 m,  8.86 ft / 2.70 m
      - Average freeboard:      10.35 ft / 3.16 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 124.2 %
      - Above water (accommodation/working, high = better): 95.3 %
   Waterplane Area: 1,745 Square feet or 162 Square metres
   Displacement factor (Displacement / loading): 113 %
   Structure weight / hull surface area: 26 lbs/sq ft or 126 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.72
      - Longitudinal: 9.75
      - Overall: 0.93
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[The Rock Doctor]

Visby Class Sloop

The V-class sloops are, functionally, replacements for the Vitava class protected cruisers, which have spent the last few years as heavy patrol assets in the Caribbean.

Though the sloop lacks significant protection, it has a heavier armament, superior speed and range, and scouting capability that the older cruisers lack.  It also has the legs for a patrol into the Atlantic and the command facilities to control an escort group as required.

A notional build of six to eight units is anticipated at this time. 

Visby, laid down 1926
Vyborg, laid down 1926
Vejle, laid down 1927
Vechta, laid down 1927
Varash, laid down 1928
Valmiera, laid down 1928

Enter ship name, Enter country Enter ship type laid down 1926

Displacement:
   2,153 t light; 2,287 t standard; 2,785 t normal; 3,184 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (408.86 ft / 396.98 ft) x 42.65 ft x (12.80 / 14.09 ft)
   (124.62 m / 121.00 m) x 13.00 m  x (3.90 / 4.29 m)

Armament:
      6 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 300 per gun
     Quick firing guns in deck and hoist mounts, 1926 Model
     2 x 2-gun mounts on centreline, forward evenly spread
      1 raised mount
     1 x 2-gun mount on centreline, aft deck aft
      2 - 3.94" / 100.0 mm 45.0 cal guns - 30.77lbs / 13.96kg shells, 250 per gun
     Anti-air guns in deck mounts, 1926 Model
     2 x Single mounts on sides, forward deck aft
      8 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 4,000 per gun
     Machine guns in deck mounts, 1926 Model
     4 x Twin mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 468 lbs / 212 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   0.79" / 20 mm            -
   3rd:   0.59" / 15 mm   0.12" / 3 mm            -

   - Conning towers: Forward 1.97" / 50 mm,  Aft 0.00" / 0 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 20,107 shp / 15,000 Kw = 26.28 kts
   Range 20,000nm at 10.00 kts
   Bunker at max displacement = 897 tons

Complement:
   191 - 249

Cost:
   £0.717 million / $2.866 million

Distribution of weights at normal displacement:
   Armament: 121 tons, 4.4 %
   Armour: 60 tons, 2.1 %
      - Armament: 51 tons, 1.8 %
      - Conning Tower: 8 tons, 0.3 %
   Machinery: 644 tons, 23.1 %
   Hull, fittings & equipment: 1,071 tons, 38.4 %
   Fuel, ammunition & stores: 632 tons, 22.7 %
   Miscellaneous weights: 258 tons, 9.3 %
      - Hull below water: 25 tons
      - On freeboard deck: 123 tons
      - Above deck: 110 tons

Fittings:
-10 t:  Sonar (BW)
-15 t:  Enhanced hydrophone package (BW)
-75 t:  Two armed floatplanes and a catapult (FD)
-15 t:  ASW ordnance (FD) (2 x Y-DCT, 39 x 280 kg DC)
-16 t:  2x2 heavyweigtht 530mm torpedo carriages, no reloads (AD)
-50 t:  Command facilities (AD)
-12 t:  1918 fire control (AD)
-10 t:  Nightfighting doodads (AD)
-25 t:  L/R wireless (AD)
-30 t:  Weight reserve (AD/FD)


Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,982 lbs / 1,806 Kg = 59.4 x 5.1 " / 130 mm shells or 1.0 torpedoes
   Stability (Unstable if below 1.00): 1.15
   Metacentric height 1.8 ft / 0.6 m
   Roll period: 13.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.45
   Seaboat quality  (Average = 1.00): 1.52

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.467
   Length to Beam Ratio: 9.31 : 1
   'Natural speed' for length: 19.92 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   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 %,  23.62 ft / 7.20 m,  18.70 ft / 5.70 m
      - Forward deck:   40.00 %,  18.70 ft / 5.70 m,  18.70 ft / 5.70 m
      - Aft deck:   25.00 %,  10.83 ft / 3.30 m,  10.83 ft / 3.30 m
      - Quarter deck:   15.00 %,  10.83 ft / 3.30 m,  10.83 ft / 3.30 m
      - Average freeboard:      15.94 ft / 4.86 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 92.0 %
      - Above water (accommodation/working, high = better): 168.8 %
   Waterplane Area: 10,800 Square feet or 1,003 Square metres
   Displacement factor (Displacement / loading): 139 %
   Structure weight / hull surface area: 62 lbs/sq ft or 303 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.82
      - Longitudinal: 1.97
      - Overall: 0.90
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[The Rock Doctor]

Type 1928 Gunboat

The "Guntub" is designed to be lugged around by the Union's Korsarz and represents a small, slow way to get a light caliber gun into close range of a hostile shore target.  The production run will be small.

#1 to #2, laid down 1928
#3 to #6, laid down 1929
#7 to #8, laid down 1930

Enter ship name, Enter country Enter ship type laid down 1929

Displacement:
   20 t light; 21 t standard; 22 t normal; 22 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (54.87 ft / 52.49 ft) x 13.12 ft x (2.46 / 2.50 ft)
   (16.72 m / 16.00 m) x 4.00 m  x (0.75 / 0.76 m)

Armament:
      1 - 2.95" / 75.0 mm 45.0 cal gun - 12.98lbs / 5.89kg shells, 100 per gun
     Quick firing gun in deck mount, 1929 Model
     1 x Single mount on centreline, aft deck centre
      2 - 0.59" / 15.0 mm 90.0 cal guns - 0.12lbs / 0.05kg shells, 2,000 per gun
     Machine guns in deck mounts, 1929 Model
     2 x Single mounts on sides amidships
      2 raised mounts
      Weight of broadside 13 lbs / 6 kg

Machinery:
   Diesel Internal combustion motors,
   Geared drive, 2 shafts, 228 shp / 170 Kw = 13.90 kts
   Range 100nm at 13.90 kts
   Bunker at max displacement = 1 tons

Complement:
   4 - 6

Cost:
   £0.009 million / $0.038 million

Distribution of weights at normal displacement:
   Armament: 3 tons, 12.4 %
   Machinery: 7 tons, 30.4 %
   Hull, fittings & equipment: 8 tons, 38.4 %
   Fuel, ammunition & stores: 2 tons, 9.6 %
   Miscellaneous weights: 2 tons, 9.2 %
      - Hull below water: 2 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17 lbs / 8 Kg = 1.3 x 3.0 " / 75 mm shells or 0.1 torpedoes
   Stability (Unstable if below 1.00): 1.12
   Metacentric height 0.3 ft / 0.1 m
   Roll period: 10.2 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.35
   Seaboat quality  (Average = 1.00): 0.61

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.450 / 0.453
   Length to Beam Ratio: 4.00 : 1
   'Natural speed' for length: 7.25 kts
   Power going to wave formation at top speed: 78 %
   Trim (Max stability = 0, Max steadiness = 100): 83
   Bow angle (Positive = bow angles forward): 15.00 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 %,  8.86 ft / 2.70 m,  6.89 ft / 2.10 m
      - Forward deck:   20.00 %,  6.89 ft / 2.10 m,  4.92 ft / 1.50 m
      - Aft deck:   45.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Quarter deck:   15.00 %,  4.92 ft / 1.50 m,  4.92 ft / 1.50 m
      - Average freeboard:      5.67 ft / 1.73 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 141.8 %
      - Above water (accommodation/working, high = better): 109.3 %
   Waterplane Area: 439 Square feet or 41 Square metres
   Displacement factor (Displacement / loading): 94 %
   Structure weight / hull surface area: 13 lbs/sq ft or 64 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.55
      - Longitudinal: 13.16
      - Overall: 0.75
   Caution: Hull subject to strain in open-sea
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Caution: Lacks seaworthiness - very limited seakeeping ability

[The Rock Doctor]

Yamoussoukro Class Sloop

Newer machinery + lower hull strength requirements mean I can build something with the speed and firepower of a Quackenbruck class sloop on a hull 300 t lighter than Quackenbruck.

Yamoussoukro, laid down 1929
Ylane, laid down 1929
Yantarnny, laid down 1930
Yakawlyevichi, laid down 1930

Enter ship name, Enter country Enter ship type laid down 1929

Displacement:
   1,425 t light; 1,516 t standard; 1,729 t normal; 1,900 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (309.15 ft / 295.28 ft) x 37.73 ft x (11.81 / 12.65 ft)
   (94.23 m / 90.00 m) x 11.50 m  x (3.60 / 3.85 m)

Armament:
      4 - 5.12" / 130 mm 45.0 cal guns - 67.61lbs / 30.67kg shells, 300 per gun
     Quick firing guns in deck and hoist mounts, 1929 Model
     4 x Single mounts on centreline, evenly spread
      2 raised mounts
     Aft Main mounts separated by engine room
      4 - 1.97" / 50.0 mm 45.0 cal guns - 3.85lbs / 1.74kg shells, 1,000 per gun
     Anti-air guns in deck mounts, 1929 Model
     2 x Twin mounts on sides amidships
      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 centreline, forward deck aft
      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,
   Geared drive, 2 shafts, 17,426 shp / 13,000 Kw = 26.19 kts
   Range 12,000nm at 10.00 kts
   Bunker at max displacement = 384 tons

Complement:
   133 - 174

Cost:
   £0.607 million / $2.429 million

Distribution of weights at normal displacement:
   Armament: 76 tons, 4.4 %
   Armour: 46 tons, 2.7 %
      - Armament: 46 tons, 2.7 %
   Machinery: 535 tons, 30.9 %
   Hull, fittings & equipment: 576 tons, 33.3 %
   Fuel, ammunition & stores: 304 tons, 17.6 %
   Miscellaneous weights: 192 tons, 11.1 %
      - Hull below water: 25 tons
      - On freeboard deck: 77 tons
      - Above deck: 90 tons

Fittings:
-8 t:  Fire control
-50 t:  Command facilities
-25 t :  L/R wireless
-16 t:  Quadruple heavyweight 530mm torpedo carriage
-20 t:  ASW ordnance (2 x Y-DCT, 54 x 280 kg DC)
-15 t:  Enhanced Hydrophone Package
-10 t:  Night-fighting doodads
-48 t:  Weight reserve

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1,385 lbs / 628 Kg = 20.7 x 5.1 " / 130 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 1.5 ft / 0.5 m
   Roll period: 13.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 60 %
         - Recoil effect (Restricted arc if above 1.00): 0.48
   Seaboat quality  (Average = 1.00): 1.31

Hull form characteristics:
   Hull has rise forward of midbreak,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0.460 / 0.472
   Length to Beam Ratio: 7.83 : 1
   'Natural speed' for length: 17.18 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 46
   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 %,  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 %,  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:      16.14 ft / 4.92 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 118.5 %
      - Above water (accommodation/working, high = better): 158.5 %
   Waterplane Area: 7,166 Square feet or 666 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 46 lbs/sq ft or 223 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.63
      - Longitudinal: 3.28
      - Overall: 0.75
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Good seaboat, rides out heavy weather easily