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1

Tuesday, October 1st 2013, 7:28pm

Amphibious Forces

San Cristobal, Iberia Troopship laid down 1931

San Cristobal
San Sebastian
San Francisco
San Nicolas
San Diego
San Juan


Displacement:
7,429 t light; 7,628 t standard; 9,097 t normal; 10,272 t full load

Dimensions: Length overall / water x beam x draught
600.00 ft / 600.00 ft x 66.00 ft x 15.00 ft (normal load)
182.88 m / 182.88 m x 20.12 m x 4.57 m

Armament:
4 - 5.12" / 130 mm guns in single mounts, 67.03lbs / 30.40kg shells, 1931 Model
Quick firing guns in deck mounts
on side ends, evenly spread
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 287 lbs / 130 kg
Shells per gun, main battery: 100

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 0.79" / 20 mm -
2nd: 0.79" / 20 mm 0.79" / 20 mm -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 1 shaft, 13,997 shp / 10,441 Kw = 20.00 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 2,644 tons

Complement:
465 - 605

Cost:
£1.522 million / $6.087 million

Distribution of weights at normal displacement:
Armament: 36 tons, 0.4 %
Armour: 24 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 24 tons, 0.3 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 419 tons, 4.6 %
Hull, fittings & equipment: 3,451 tons, 37.9 %
Fuel, ammunition & stores: 1,667 tons, 18.3 %
Miscellaneous weights: 3,500 tons, 38.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
23,795 lbs / 10,793 Kg = 355.0 x 5.1 " / 130 mm shells or 3.1 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 3.4 ft / 1.0 m
Roll period: 15.1 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 1.91

Hull form characteristics:
Hull has low forecastle, rise forward of midbreak
Block coefficient: 0.536
Length to Beam Ratio: 9.09 : 1
'Natural speed' for length: 24.49 kts
Power going to wave formation at top speed: 32 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 0.00 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 (15 %): 24.00 ft / 7.32 m (32.00 ft / 9.75 m aft of break)
- Mid (50 %): 32.00 ft / 9.75 m (16.00 ft / 4.88 m aft of break)
- Quarterdeck (15 %): 16.00 ft / 4.88 m
- Stern: 16.00 ft / 4.88 m
- Average freeboard: 23.04 ft / 7.02 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 60.6 %
- Above water (accommodation/working, high = better): 259.4 %
Waterplane Area: 26,389 Square feet or 2,452 Square metres
Displacement factor (Displacement / loading): 196 %
Structure weight / hull surface area: 84 lbs/sq ft or 411 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.37
- Overall: 1.00
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

3500 tons Misc. weight
300 tons = 10 BDA (Landing Craft, armoured overall - 40 troops, 15m x 3,4m x 1m, 8 knots, 2 x 13mm, 30 tons)
120 tons = 6 BDS (Assault Boats, armoured ramp - 17 troops, 10m x2m x 1m, 20 knots, 2 x 13mm, 20 tons)
1000 tons = 500 Marines
300 tons = Workshops and lifting gear
1500 tons = Stores
280 tons = Command & Control Facilities

2

Tuesday, October 1st 2013, 7:28pm

Type 1 Landing Craft Infantry

Small landing craft.

Sevnety-two units built in the late 1930s.

Barco Del Aterrizaje, Iberia Landing Craft Infantry laid down 1932

Displacement:
29 t light; 30 t standard; 30 t normal; 30 t full load

Dimensions: Length overall / water x beam x draught
53.47 ft / 49.21 ft x 11.15 ft x 3.28 ft (normal load)
16.30 m / 15.00 m x 3.40 m x 1.00 m

Armament:
2 - 0.51" / 13.0 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1932 Model
Dual purpose guns in deck mounts
on side, all aft
Weight of broadside 0 lbs / 0 kg
Shells per gun, main battery: 1,500

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.39" / 10 mm 31.99 ft / 9.75 m 6.56 ft / 2.00 m
Ends: 0.39" / 10 mm 17.19 ft / 5.24 m 6.56 ft / 2.00 m
Upper: 0.59" / 15 mm 6.56 ft / 2.00 m 7.38 ft / 2.25 m
Main Belt covers 100 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm - -

- Conning tower: 0.59" / 15 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 23 shp / 17 Kw = 8.00 kts
Range 100nm at 6.00 kts
Bunker at max displacement = 0 tons

Complement:
6 - 8

Cost:
£0.005 million / $0.020 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.1 %
Armour: 9 tons, 28.4 %
- Belts: 8 tons, 27.2 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.4 %
Machinery: 1 tons, 2.2 %
Hull, fittings & equipment: 10 tons, 33.0 %
Fuel, ammunition & stores: 1 tons, 3.0 %
Miscellaneous weights: 10 tons, 33.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
98 lbs / 44 Kg = 1,456.1 x 0.5 " / 13 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 0.2 ft / 0.1 m
Roll period: 10.6 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised quarterdeck
and transom stern
Block coefficient: 0.583
Length to Beam Ratio: 4.41 : 1
'Natural speed' for length: 8.54 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 25
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: 7.38 ft / 2.25 m
- Forecastle (10 %): 4.92 ft / 1.50 m
- Mid (50 %): 4.92 ft / 1.50 m
- Quarterdeck (30 %): 6.56 ft / 2.00 m (4.92 ft / 1.50 m before break)
- Stern: 6.56 ft / 2.00 m
- Average freeboard: 5.51 ft / 1.68 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 45.5 %
- Above water (accommodation/working, high = better): 64.3 %
Waterplane Area: 412 Square feet or 38 Square metres
Displacement factor (Displacement / loading): 150 %
Structure weight / hull surface area: 12 lbs/sq ft or 60 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.76
- Longitudinal: 13.01
- Overall: 1.01
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

Warning: Armour belts too tall for hull

Upper belt armour used to simulate bow ramp.
Draft 60cm at bow, 1.4 m at stern.
Props mounted in tunnels for protection during beaching.
Anchor and winch on stern to aid refloating after beaching

3

Tuesday, October 1st 2013, 7:30pm

Place marker for older assault boats. They're small and there's 48 of the buggers. More when I find the design again.

4

Tuesday, October 1st 2013, 7:31pm

L-1 class Landing Ship (Tank)

Names pending but not yet assigned.

L-1, laid down 1942
L-2, laid down 1942
L-9, laid down 1943
L-10, laid down 1943
L-19, laid down 1944
L-20, laid down 1944

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
989 t light; 1,042 t standard; 1,387 t normal; 1,663 t full load

Dimensions: Length overall / water x beam x draught
265.76 ft / 262.47 ft x 43.64 ft x 6.23 ft (normal load)
81.01 m / 80.00 m x 13.30 m x 1.90 m

Armament:
4 - 2.24" / 57.0 mm guns (2x2 guns), 5.65lbs / 2.56kg shells, 1942 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread
8 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1942 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 26 lbs / 12 kg
Shells per gun, main battery: 1,500

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 2,011 shp / 1,500 Kw = 14.80 kts
Range 8,000 nm at 10.00 kts
Bunker at max displacement = 226 tons
(Simmed as: Range 22,000nm at 10.00 kts
Bunker at max displacement = 621 tons)


Complement:
113 - 147

Cost:
£0.285 million / $1.139 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.2 %
Armour: 6 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 6 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 53 tons, 3.8 %
Hull, fittings & equipment: 560 tons, 40.4 %
Fuel, ammunition & stores: 398 tons, 28.7 %
Miscellaneous weights: 367 tons, 26.5 % + 395 t simmed as bunkerage
-500 t: Vehicles:
-200 t: Accommodation for 100 vehicle personnel
-32 t : Miscellaneous weight
-30 t: Vehicle fuel and supplies (simmed as bunkerage)

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,367 lbs / 2,888 Kg = 1,126.8 x 2.2 " / 57 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.41
Metacentric height 2.6 ft / 0.8 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.82

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.680
Length to Beam Ratio: 6.02 : 1
'Natural speed' for length: 16.20 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 33
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: 18.70 ft / 5.70 m
- Forecastle (20 %): 13.78 ft / 4.20 m
- Mid (50 %): 13.78 ft / 4.20 m
- Quarterdeck (15 %): 13.78 ft / 4.20 m
- Stern: 13.78 ft / 4.20 m
- Average freeboard: 14.17 ft / 4.32 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 45.9 %
- Above water (accommodation/working, high = better): 209.4 %
Waterplane Area: 9,016 Square feet or 838 Square metres
Displacement factor (Displacement / loading): 275 %
Structure weight / hull surface area: 46 lbs/sq ft or 227 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.07
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

5

Thursday, October 3rd 2013, 2:45pm

L-3 Class Landing Craft (Tank)

L-3 to L-8, laid down 1942
L-11 to L-18, laid down 1943
L-21 to L-28, laid down 1944
L-29 to L-36, laid down 1945

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
357 t light; 377 t standard; 404 t normal; 425 t full load

Dimensions: Length overall / water x beam x draught
134.13 ft / 131.23 ft x 36.09 ft x 4.59 ft (normal load)
40.88 m / 40.00 m x 11.00 m x 1.40 m

Armament:
2 - 2.24" / 57.0 mm guns (1x2 guns), 5.65lbs / 2.56kg shells, 1942 Model
Dual purpose guns in deck mount
on centreline forward
4 - 0.98" / 25.0 mm guns in single mounts, 0.48lbs / 0.22kg shells, 1942 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 13 lbs / 6 kg
Shells per gun, main battery: 1,500

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

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 938 shp / 700 Kw = 13.68 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 48 tons

Complement:
44 - 58

Cost:
£0.110 million / $0.440 million

Distribution of weights at normal displacement:
Armament: 2 tons, 0.4 %
Armour: 3 tons, 0.8 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 25 tons, 6.1 %
Hull, fittings & equipment: 167 tons, 41.4 %
Fuel, ammunition & stores: 47 tons, 11.7 %
Miscellaneous weights: 160 tons, 39.6 %
-160 t: Vehicles and cargo

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,279 lbs / 580 Kg = 226.3 x 2.2 " / 57 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.26
Metacentric height 1.6 ft / 0.5 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.26

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.650
Length to Beam Ratio: 3.64 : 1
'Natural speed' for length: 11.46 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 41
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: 16.40 ft / 5.00 m
- Forecastle (20 %): 11.48 ft / 3.50 m
- Mid (50 %): 11.48 ft / 3.50 m
- Quarterdeck (15 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 11.88 ft / 3.62 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 69.7 %
- Above water (accommodation/working, high = better): 180.4 %
Waterplane Area: 3,628 Square feet or 337 Square metres
Displacement factor (Displacement / loading): 179 %
Structure weight / hull surface area: 35 lbs/sq ft or 169 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.82
- Longitudinal: 5.54
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

6

Thursday, October 3rd 2013, 2:56pm

Place holder for LCM

7

Wednesday, January 22nd 2014, 8:13pm

Arlaban class LSD

Arlaban, laid down 1944
Gravelines, laid down 1944
Vitoria, laid down 1944

Specs pending...

8

Sunday, December 14th 2014, 3:20pm

San Longino Class Attack Transport

Additional transports intended to give the Armada the capability of mounting a division-sized amphibious assault with dedicated assets.

Specs are around here somewhere.

San Longino, laid down 1945
Cornelio el Centurion, laid down 1945
Isidoro de Sevilla, laid down 1945
San Fulgencio de Cartagena, laid down 1945