WesWorld

Ship list

Attack transports

General Manuel Cedeno (ex Rio Chama)
General Ambrosio Plaza (ex Rio Negros)

Gran Roque (ex-Atlantean Star)
Morro de la Peche (ex-Atlantean Pride)
Los de Coche (ex-Atlantean Spirit)
Los Testigos (ex-Atlantean Prize)

Troop Transports
Scythia, Nineveh, Gadir, Tanais

LSD's
Amuay Bay,
Playa Blanca
Playa de las Americas
Playa Bonaire

LST's
Lago de Maracaibo
Golfo de Venezuela
Cabo de la Vela

LST 4
LST 5
LST 6
LST 7


Ships no longer in service

Troop ships
Sylax, Plato, Hesiod, Plinius (all weapons removed, sold into civilian use)
Ur, Itsaso (all weapons removed, sold into civilian use)

Scythia class Military transport

Scythia, Atlantis Military transport laid down 1919, refitted 1927

As refitted to carry new landing craft, includes new davits, and improved troop accomidation

Scythia, Nineveh, Gadir, Tanais

Displacement:
5,219 t light; 5,352 t standard; 5,781 t normal; 6,125 t full load

Dimensions: Length overall / water x beam x draught
371.88 ft / 360.00 ft x 51.50 ft x 17.00 ft (normal load)
113.35 m / 109.73 m x 15.70 m x 5.18 m

Armament:
4 - 4.50" / 114 mm guns (2x2 guns), 45.56lbs / 20.67kg shells, 1923 Model
Breech loading guns in deck mounts with hoists
on side, evenly spread
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, all amidships
2 - 1.57" / 40 mm guns in single mounts, 1.93lbs / 0.88kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 0.79" / 20 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1927 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 215 lbs / 98 kg
Shells per gun, main battery: 140

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 12,390 shp / 9,243 Kw = 20.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 773 tons

Complement:
330 - 430

Cost:
£0.582 million / $2.329 million

Distribution of weights at normal displacement:
Armament: 27 tons, 0.5 %
Machinery: 440 tons, 7.6 %
Hull, fittings & equipment: 4,252 tons, 73.5 %
Fuel, ammunition & stores: 563 tons, 9.7 %
Miscellaneous weights: 500 tons, 8.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18,327 lbs / 8,313 Kg = 402.2 x 4.5 " / 114 mm shells or 3.8 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 2.1 ft / 0.6 m
Roll period: 14.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.11
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.642
Length to Beam Ratio: 6.99 : 1
'Natural speed' for length: 18.97 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 8.00 ft / 2.44 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (20 %): 21.00 ft / 6.40 m (20.00 ft / 6.10 m aft of break)
- Mid (0 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 20.28 ft / 6.18 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 39.1 %
- Above water (accommodation/working, high = better): 162.8 %
Waterplane Area: 14,099 Square feet or 1,310 Square metres
Displacement factor (Displacement / loading): 362 %
Structure weight / hull surface area: 178 lbs/sq ft or 867 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.29
- Longitudinal: 8.07
- Overall: 2.60
Hull space for machinery, storage, compartmentation is excellent
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

Misc weight breakdown:
88 tons for 4xLCM type 2
412 tons for 206 troops
Total 500 tons

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Scythia, Nineveh, Gadir, Tanais

Atlantis Military transport laid down 1919

Displacement:
5,223 t light; 5,352 t standard; 5,781 t normal; 6,125 t full load

Dimensions: Length overall / water x beam x draught
371.88 ft / 360.00 ft x 51.50 ft x 17.00 ft (normal load)
113.35 m / 109.73 m x 15.70 m x 5.18 m

Armament:
4 - 4.00" / 102 mm guns (2x2 guns), 32.00lbs / 14.51kg shells, 1919 Model
Breech loading guns in deck mounts with hoists
on side, evenly spread
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1919 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1919 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 157 lbs / 71 kg
Shells per gun, main battery: 140

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 12,390 shp / 9,243 Kw = 20.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 773 tons

Complement:
330 - 430

Cost:
£0.569 million / $2.277 million

Distribution of weights at normal displacement:
Armament: 20 tons, 0.3 %
Machinery: 440 tons, 7.6 %
Hull, fittings & equipment: 4,364 tons, 75.5 %
Fuel, ammunition & stores: 558 tons, 9.7 %
Miscellaneous weights: 400 tons, 6.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19,799 lbs / 8,981 Kg = 618.7 x 4.0 " / 102 mm shells or 4.2 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 2.1 ft / 0.7 m
Roll period: 14.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.08
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.642
Length to Beam Ratio: 6.99 : 1
'Natural speed' for length: 18.97 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 8.00 ft / 2.44 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (20 %): 21.00 ft / 6.40 m (20.00 ft / 6.10 m aft of break)
- Mid (0 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 20.28 ft / 6.18 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 36.3 %
- Above water (accommodation/working, high = better): 162.8 %
Waterplane Area: 14,099 Square feet or 1,310 Square metres
Displacement factor (Displacement / loading): 402 %
Structure weight / hull surface area: 182 lbs/sq ft or 889 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.38
- Longitudinal: 8.29
- Overall: 2.69
Hull space for machinery, storage, compartmentation is excellent
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

Sylax class Troop Transport

Sylax, Plato, Hesiod, Plinius
Atlantis Troop Transport laid down 1918, all weapons removed, sold into civilian use

Displacement:
3,168 t light; 3,247 t standard; 3,581 t normal; 3,849 t full load

Dimensions: Length overall / water x beam x draught
373.17 ft / 365.00 ft x 42.00 ft x 14.00 ft (normal load)
113.74 m / 111.25 m x 12.80 m x 4.27 m

Armament:
2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1918 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 93 lbs / 42 kg
Shells per gun, main battery: 120

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -

Machinery:
Oil fired boilers, simple reciprocating steam engines,
Direct drive, 1 shaft, 5,883 ihp / 4,388 Kw = 18.00 kts
Range 8,000nm at 10.00 kts
Bunker at max displacement = 602 tons

Complement:
230 - 300

Cost:
£0.470 million / $1.880 million

Distribution of weights at normal displacement:
Armament: 12 tons, 0.3 %
Armour: 4 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 816 tons, 22.8 %
Hull, fittings & equipment: 2,036 tons, 56.8 %
Fuel, ammunition & stores: 413 tons, 11.5 %
Miscellaneous weights: 300 tons, 8.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,421 lbs / 2,459 Kg = 169.4 x 4.0 " / 102 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 1.9 ft / 0.6 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.584
Length to Beam Ratio: 8.69 : 1
'Natural speed' for length: 19.10 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.00 ft / 5.49 m
- Forecastle (20 %): 17.00 ft / 5.18 m (16.00 ft / 4.88 m aft of break)
- Mid (0 %): 16.00 ft / 4.88 m
- Quarterdeck (15 %): 16.00 ft / 4.88 m
- Stern: 16.50 ft / 5.03 m
- Average freeboard: 16.32 ft / 4.97 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.2 %
- Above water (accommodation/working, high = better): 142.8 %
Waterplane Area: 10,775 Square feet or 1,001 Square metres
Displacement factor (Displacement / loading): 176 %
Structure weight / hull surface area: 108 lbs/sq ft or 526 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.77
- Longitudinal: 3.95
- Overall: 1.92
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

Itsaso class Troop Transport

Itsaso, Ur

Atlantis Troop Transport laid down 1918, all weapons removed, sold into civilian use

Displacement:
3,168 t light; 3,247 t standard; 3,581 t normal; 3,849 t full load

Dimensions: Length overall / water x beam x draught
373.17 ft / 365.00 ft x 42.00 ft x 14.00 ft (normal load)
113.74 m / 111.25 m x 12.80 m x 4.27 m

Armament:
2 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1918 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
2 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, all amidships
4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1918 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 93 lbs / 42 kg
Shells per gun, main battery: 120

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -

Machinery:
Oil fired boilers, simple reciprocating steam engines,
Direct drive, 1 shaft, 5,883 ihp / 4,388 Kw = 18.00 kts
Range 8,000nm at 10.00 kts
Bunker at max displacement = 602 tons

Complement:
230 - 300

Cost:
£0.470 million / $1.880 million

Distribution of weights at normal displacement:
Armament: 12 tons, 0.3 %
Armour: 4 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 816 tons, 22.8 %
Hull, fittings & equipment: 2,036 tons, 56.8 %
Fuel, ammunition & stores: 413 tons, 11.5 %
Miscellaneous weights: 300 tons, 8.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,421 lbs / 2,459 Kg = 169.4 x 4.0 " / 102 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 1.9 ft / 0.6 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.584
Length to Beam Ratio: 8.69 : 1
'Natural speed' for length: 19.10 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.00 ft / 5.49 m
- Forecastle (20 %): 17.00 ft / 5.18 m (16.00 ft / 4.88 m aft of break)
- Mid (0 %): 16.00 ft / 4.88 m
- Quarterdeck (15 %): 16.00 ft / 4.88 m
- Stern: 16.50 ft / 5.03 m
- Average freeboard: 16.32 ft / 4.97 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.2 %
- Above water (accommodation/working, high = better): 142.8 %
Waterplane Area: 10,775 Square feet or 1,001 Square metres
Displacement factor (Displacement / loading): 176 %
Structure weight / hull surface area: 108 lbs/sq ft or 526 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.77
- Longitudinal: 3.95
- Overall: 1.92
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

LST-Type 2, Atlantean LST laid down 1941

Displacement:
2,457 t light; 2,520 t standard; 2,706 t normal; 2,855 t full load

Dimensions: Length overall / water x beam x draught
332.23 ft / 328.00 ft x 50.00 ft x 8.25 ft (normal load)
101.26 m / 99.97 m x 15.24 m x 2.51 m

Armament:
8 - 1.58" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.88kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all forward, all raised mounts - superfiring
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1941 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 20 lbs / 9 kg
Shells per gun, main battery: 600

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm - -
2nd: 0.59" / 15 mm - -

- Conning tower: 0.98" / 25 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1,349 shp / 1,007 Kw = 12.00 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 334 tons

Complement:
186 - 243

Cost:
£0.576 million / $2.302 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.1 %
Armour: 7 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.2 %
Machinery: 36 tons, 1.3 %
Hull, fittings & equipment: 1,113 tons, 41.1 %
Fuel, ammunition & stores: 249 tons, 9.2 %
Miscellaneous weights: 1,300 tons, 48.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,968 lbs / 3,614 Kg = 4,078.8 x 1.6 " / 40 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 2.3 ft / 0.7 m
Roll period: 14.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.80

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.700
Length to Beam Ratio: 6.56 : 1
'Natural speed' for length: 18.11 kts
Power going to wave formation at top speed: 27 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.00 ft / 7.32 m
- Forecastle (15 %): 16.00 ft / 4.88 m
- Mid (50 %): 16.00 ft / 4.88 m
- Quarterdeck (15 %): 16.00 ft / 4.88 m
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 16.48 ft / 5.02 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 58.4 %
- Above water (accommodation/working, high = better): 215.4 %
Waterplane Area: 13,145 Square feet or 1,221 Square metres
Displacement factor (Displacement / loading): 194 %
Structure weight / hull surface area: 62 lbs/sq ft or 304 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.06
- Longitudinal: 1.99
- Overall: 1.13
Hull space for machinery, storage, compartmentation is excellent
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

Three shallow draft tankers build for shipping on Lake Maracaibo purchased in 1937 for conversion into LST's. Their conversions began in 1939.

The conversion involves the removal of the centerline fuel strorage tanks. The space will then be covered with a steel deck, planked over with wood and the bow modified to fit two doors, one inner and one split outter (formed from the orriginal bow form).

A large double hinged ramp extention is hinged at the top of the inner door and provides a 100 foot ramp from the bow to the shore. The ramp represents 400 tons of misc weight including winches ect to move the ramp into possition.Two 50 ton service cranes are fitted amidships to lift vehicles and/or cargo.

20x30 ton tanks and 350 troops and combined operations personell can be carried representing 1,300 tons of misc weight.

Total misc weight devoted to amphibious operations 1,800 tons. Remainder (2,400 tons) goes to ballast, fresh water, berthing for troops, additional cargo.

Lago de Maracaibo class
Atlantean LST conversion of shallow draught Oil tanker laid down 1928

Ships in class:
Lago de Maracaibo
Golfo de Venezuela
Cabo de la Vela

Displacement:
6,433 t light; 6,584 t standard; 7,398 t normal; 8,049 t full load

Dimensions: Length overall / water x beam x draught
429.94 ft / 425.00 ft x 54.00 ft x 15.50 ft (normal load)
131.04 m / 129.54 m x 16.46 m x 4.72 m

Armament:
2 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.89kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
16 - 0.50" / 12.7 mm guns (8x2 guns), 0.06lbs / 0.03kg shells, 1928 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 7 lbs / 3 kg
Shells per gun, main battery: 550

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm - -
2nd: 0.51" / 13 mm - -

- Conning tower: 1.57" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 4,819 shp / 3,595 Kw = 15.00 kts
Range 12,000nm at 12.00 kts
Bunker at max displacement = 1,465 tons

Complement:
398 - 518

Cost:
£0.943 million / $3.770 million

Distribution of weights at normal displacement:
Armament: 1 tons, 0.0 %
Armour: 14 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 13 tons, 0.2 %
Machinery: 150 tons, 2.0 %
Hull, fittings & equipment: 2,068 tons, 28.0 %
Fuel, ammunition & stores: 965 tons, 13.0 %
Miscellaneous weights: 4,200 tons, 56.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
13,464 lbs / 6,107 Kg = 6,894.7 x 1.6 " / 40 mm shells or 2.1 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.2 ft / 0.7 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 40 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.60

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.728
Length to Beam Ratio: 7.87 : 1
'Natural speed' for length: 20.62 kts
Power going to wave formation at top speed: 33 %
Trim (Max stability = 0, Max steadiness = 100): 20
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 20.94 ft / 6.38 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 69.1 %
- Above water (accommodation/working, high = better): 180.5 %
Waterplane Area: 18,855 Square feet or 1,752 Square metres
Displacement factor (Displacement / loading): 164 %
Structure weight / hull surface area: 69 lbs/sq ft or 335 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 2.09
- Overall: 1.01
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent

LCT Type 2

LCT-11,12 and LCT-14 through 31 (20 vessels)
Designed to work with Amuay bay class LSD's, 4 per LSD well deck

Atlantean Landing Craft Tank, (1940 design)

Displacement:
274 t light; 282 t standard; 290 t normal; 296 t full load

Dimensions: Length overall / water x beam x draught
107.60 ft / 100.00 ft x 24.00 ft x 5.60 ft (normal load)
32.80 m / 30.48 m x 7.32 m x 1.71 m

Armament:
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1940 Model
Machine guns in deck mounts
on centreline ends, evenly spread
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1940 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 1 lbs / 0 kg
Shells per gun, main battery: 3,000

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 128 shp / 96 Kw = 9.00 kts
Range 1,500nm at 9.00 kts
Bunker at max displacement = 15 tons

Complement:
34 - 45

Cost:
£0.061 million / $0.244 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 3 tons, 1.2 %
Hull, fittings & equipment: 121 tons, 41.6 %
Fuel, ammunition & stores: 16 tons, 5.5 %
Miscellaneous weights: 150 tons, 51.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
549 lbs / 249 Kg = 2,250.4 x 0.8 " / 20 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
and transom stern
Block coefficient: 0.755
Length to Beam Ratio: 4.17 : 1
'Natural speed' for length: 12.00 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 26
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 2.00 ft / 0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 12.00 ft / 3.66 m
- Forecastle (20 %): 11.00 ft / 3.35 m (6.00 ft / 1.83 m aft of break)
- Mid (50 %): 6.00 ft / 1.83 m
- Quarterdeck (15 %): 11.00 ft / 3.35 m (6.00 ft / 1.83 m before break)
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 7.91 ft / 2.41 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 61.9 %
- Above water (accommodation/working, high = better): 70.9 %
Waterplane Area: 2,111 Square feet or 196 Square metres
Displacement factor (Displacement / loading): 184 %
Structure weight / hull surface area: 42 lbs/sq ft or 204 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.50
- Longitudinal: 6.44
- Overall: 1.73
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

LCT type 1


Atlantean Landing Craft, Tank laid down 1932 (1931 design)

Displacement:
300 t light; 308 t standard; 314 t normal; 318 t full load

Dimensions: Length overall / water x beam x draught
134.24 ft / 125.00 ft x 34.00 ft x 4.10 ft (normal load)
40.92 m / 38.10 m x 10.36 m x 1.25 m

Armament:
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1931 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 1 lbs / 0 kg
Shells per gun, main battery: 2,500

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.79" / 20 mm 100.00 ft / 30.48 m 4.00 ft / 1.22 m
Ends: 0.39" / 10 mm 25.00 ft / 7.62 m 7.00 ft / 2.13 m
Upper: 0.39" / 10 mm 100.00 ft / 30.48 m 7.00 ft / 2.13 m
Main Belt covers 123 % of normal length

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

- Conning tower: 1.00" / 25 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 403 shp / 300 Kw = 11.50 kts
Range 1,400nm at 7.00 kts
Bunker at max displacement = 11 tons

Complement:
36 - 48

Cost:
£0.053 million / $0.214 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Armour: 29 tons, 9.3 %
- Belts: 28 tons, 8.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 1 tons, 0.3 %
Machinery: 12 tons, 3.8 %
Hull, fittings & equipment: 78 tons, 25.0 %
Fuel, ammunition & stores: 14 tons, 4.4 %
Miscellaneous weights: 180 tons, 57.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
480 lbs / 218 Kg = 1,960.2 x 0.8 " / 20 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.24
Metacentric height 1.5 ft / 0.4 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.32

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.630
Length to Beam Ratio: 3.68 : 1
'Natural speed' for length: 11.18 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 53
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.00 ft / 4.88 m
- Forecastle (20 %): 7.00 ft / 2.13 m
- Mid (50 %): 7.00 ft / 2.13 m
- Quarterdeck (15 %): 7.00 ft / 2.13 m
- Stern: 7.00 ft / 2.13 m
- Average freeboard: 7.72 ft / 2.35 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76.2 %
- Above water (accommodation/working, high = better): 118.4 %
Waterplane Area: 3,196 Square feet or 297 Square metres
Displacement factor (Displacement / loading): 134 %
Structure weight / hull surface area: 20 lbs/sq ft or 99 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.62
- Longitudinal: 1.86
- Overall: 0.69
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

General Manuel Cedeno, Atlantean attack transport laid down 1930, refited 1943

Displacement:
8,549 t light; 8,835 t standard; 13,663 t normal; 17,524 t full load

Dimensions: Length overall / water x beam x draught
479.94 ft / 475.00 ft x 64.00 ft x 26.00 ft (normal load)
146.28 m / 144.78 m x 19.51 m x 7.92 m

Armament:
4 - 3.95" / 100 mm guns in single mounts, 30.81lbs / 13.98kg shells, 1942 Model
Dual purpose guns in deck mounts
on side, evenly spread, all raised mounts
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1930 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 141 lbs / 64 kg
Shells per gun, main battery: 150

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 1 shaft, 12,592 shp / 9,394 Kw = 18.00 kts
Range 20,000nm at 18.00 kts
Bunker at max displacement = 8,689 tons

Complement:
631 - 821

Cost:
£1.537 million / $6.147 million

Distribution of weights at normal displacement:
Armament: 18 tons, 0.1 %
Machinery: 382 tons, 2.8 %
Hull, fittings & equipment: 4,139 tons, 30.3 %
Fuel, ammunition & stores: 5,113 tons, 37.4 %
Miscellaneous weights: 4,011 tons, 29.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
36,170 lbs / 16,406 Kg = 1,173.8 x 4.0 " / 100 mm shells or 4.6 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.8 ft / 0.9 m
Roll period: 16.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.605
Length to Beam Ratio: 7.42 : 1
'Natural speed' for length: 21.79 kts
Power going to wave formation at top speed: 39 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (20 %): 27.00 ft / 8.23 m
- Mid (50 %): 27.00 ft / 8.23 m
- Quarterdeck (15 %): 25.00 ft / 7.62 m (27.00 ft / 8.23 m before break)
- Stern: 25.00 ft / 7.62 m
- Average freeboard: 26.78 ft / 8.16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 43.3 %
- Above water (accommodation/working, high = better): 178.2 %
Waterplane Area: 21,868 Square feet or 2,032 Square metres
Displacement factor (Displacement / loading): 278 %
Structure weight / hull surface area: 99 lbs/sq ft or 486 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.01
- Longitudinal: 4.05
- Overall: 1.16
Hull space for machinery, storage, compartmentation is excellent
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

Actual range is 15,000 nm @18 knots, additional 1,189 tons of cargo simed as bunkerage. Total misc. weight is 5,200 tons.
Misc weight breakdown as follows
8xLCM(3) 240 tons
6xLCVP 60 tons
Troops (42 officers and 917 enlisted) 1,918 tons
Electronics (Radar, radio ect) 100 tons
Boat repair shop 300 tons
Engine repair shop 300 tons
Dispensary and medical facilities 200 tons
3x300kw turbo diesel generators 30 tons
Derricks and cranes for handling Cargo and landing craft 300 tons
Cargo 1,700 tons
Crew comforts/amenities 52 tons
Ships in class: General Manuel Cedeno (ex Rio Chama), General Ambrosio Plaza (ex Rio Negros)

Gran Roque, Atlantean Attack Transport laid down 1930, refitted 1943/44

Displacement:
14,125 t light; 14,576 t standard; 20,641 t normal; 25,493 t full load

Dimensions: Length overall / water x beam x draught
539.94 ft / 535.00 ft x 72.00 ft x 31.00 ft (normal load)
164.57 m / 163.07 m x 21.95 m x 9.45 m

Armament:
4 - 3.95" / 100 mm guns in single mounts, 30.81lbs / 13.98kg shells, 1942 Model
Dual purpose guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on centreline ends, evenly spread, all raised mounts
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.89kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1930 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1930 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 141 lbs / 64 kg
Shells per gun, main battery: 450

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 15,775 shp / 11,768 Kw = 18.00 kts
Range 20,000nm at 18.00 kts
Bunker at max displacement = 10,917 tons

Complement:
860 - 1,119

Cost:
£2.409 million / $9.637 million

Distribution of weights at normal displacement:
Armament: 18 tons, 0.1 %
Machinery: 478 tons, 2.3 %
Hull, fittings & equipment: 7,119 tons, 34.5 %
Fuel, ammunition & stores: 6,517 tons, 31.6 %
Miscellaneous weights: 6,510 tons, 31.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
48,526 lbs / 22,011 Kg = 1,574.8 x 4.0 " / 100 mm shells or 5.3 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 3.1 ft / 0.9 m
Roll period: 17.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.605
Length to Beam Ratio: 7.43 : 1
'Natural speed' for length: 23.13 kts
Power going to wave formation at top speed: 37 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (20 %): 27.00 ft / 8.23 m
- Mid (50 %): 27.00 ft / 8.23 m
- Quarterdeck (15 %): 25.00 ft / 7.62 m (27.00 ft / 8.23 m before break)
- Stern: 25.00 ft / 7.62 m
- Average freeboard: 26.78 ft / 8.16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 43.9 %
- Above water (accommodation/working, high = better): 169.3 %
Waterplane Area: 28,305 Square feet or 2,630 Square metres
Displacement factor (Displacement / loading): 271 %
Structure weight / hull surface area: 143 lbs/sq ft or 697 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.31
- Longitudinal: 3.80
- Overall: 1.46
Hull space for machinery, storage, compartmentation is excellent
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

Actual range is 15,000 nm @18 knots, additional 1,490 tons of cargo simed as bunkerage. Total cargo capacity is 8,000 tons. Misc weight breakdown as following.
Troops (117 officers, 1810 enlisted) 3,854 tons
Flag accomidations (43 officers, 108 enlisted) 302 tons
20xLCM(3) 600 tons
4xLCM(4) 208 tons
Electronics (radars, radio ect) 150 tons
Boat repair shop 300 tons
Engine repair shop 300 tons
Dispensary and medical facilities 200 tons
3x300kw turbo diesel generators 30 tons
Derricks and cranes for handling landing craft and cargo 300 tons
Crew comforts and amenities 56 tons
Below deck cargo 1,700 tons
Ships in class: Gran Roque (ex-Atlantean Star), Morro de la Peche (ex-Atlantean Pride), Los de Coche (ex-Atlantean Spirit) Los Testigos (ex-Atlantean Prize)

Future design

Future Project

Amuay Bay, Atlantean Landing ship dock laid down 1942

Names: Amuay Bay, Playa Blanca, Playa de las Americas, Playa Bonaire

Displacement:
12,455 t light; 12,870 t standard; 16,221 t normal; 18,902 t full load

Dimensions: Length overall / water x beam x draught
535.49 ft / 524.93 ft x 80.50 ft x 20.67 ft (normal load)
163.22 m / 160.00 m x 24.54 m x 6.30 m

Armament:
4 - 5.10" / 130 mm guns (2x2 guns), 66.33lbs / 30.09kg shells, 1942 Model
Dual purpose guns in deck mounts with hoists
on centreline, all forward, 1 raised mount - superfiring
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.88kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1942 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.50" / 12.7 mm guns (4x2 guns), 0.06lbs / 0.03kg shells, 1942 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 301 lbs / 136 kg
Shells per gun, main battery: 500

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Ends: Unarmoured

- Torpedo Bulkhead:
1.38" / 35 mm 262.47 ft / 80.00 m 20.67 ft / 6.30 m

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

- Armour deck: 1.18" / 30 mm, Conning tower: 1.18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 12,923 shp / 9,640 Kw = 18.00 kts
Range 15,000nm at 18.00 kts
Bunker at max displacement = 6,033 tons

Complement:
718 - 934

Cost:
£3.276 million / $13.103 million

Distribution of weights at normal displacement:
Armament: 38 tons, 0.2 %
Armour: 1,047 tons, 6.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 277 tons, 1.7 %
- Armament: 16 tons, 0.1 %
- Armour Deck: 738 tons, 4.5 %
- Conning Tower: 16 tons, 0.1 %
Machinery: 338 tons, 2.1 %
Hull, fittings & equipment: 4,883 tons, 30.1 %
Fuel, ammunition & stores: 3,767 tons, 23.2 %
Miscellaneous weights: 6,150 tons, 37.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
41,675 lbs / 18,904 Kg = 628.3 x 5.1 " / 130 mm shells or 7.3 torpedoes
Stability (Unstable if below 1.00): 1.18
Metacentric height 4.9 ft / 1.5 m
Roll period: 15.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.650
Length to Beam Ratio: 6.52 : 1
'Natural speed' for length: 26.65 kts
Power going to wave formation at top speed: 38 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (20 %): 26.00 ft / 7.92 m
- Mid (50 %): 23.00 ft / 7.01 m
- Quarterdeck (30 %): 15.00 ft / 4.57 m (23.00 ft / 7.01 m before break)
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 21.89 ft / 6.67 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 68.2 %
- Above water (accommodation/working, high = better): 214.1 %
Waterplane Area: 33,773 Square feet or 3,138 Square metres
Displacement factor (Displacement / loading): 198 %
Structure weight / hull surface area: 107 lbs/sq ft or 520 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.03
- Longitudinal: 1.68
- Overall: 1.08
Hull space for machinery, storage, compartmentation is excellent
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

Notes:
-3,058.5 tons water in flooded well deck simmed as fuel. range is 7500nm @ 18 knots
-well deck is 62m long x 18m wide x 2.75m deep at full load, with water 3,069 tons (1 ton=1 m^3)

Breakdown of Misc weights:
1,400 tons for 700 troops (400 troops standard)
1,200 tons for four LCT type 2's in aft well (2 LCT side by side)
500 tons for helicopter landing platform over aft well deck
100 tons for four helicopters
450 tons for 15x30 ton tanks
324 tons for 27x12 ton vehicles
48 tons for four LCP type 2's in davits
Total 4,022
2,128 tons for workshops, cranes, ballast pumping system, cargo/gear and all other necessities as required