WesWorld

OOC: thanks Brock for SIM

Mako-class Submarine

Mako laid down 1940
Martillo, laid down 1940

Date 1940
Oceanic
Armament 4x115mm guns
ElecHP 4,000
DieselHP 12,000
CREW 100
wt fuel&batts 1000t
Misc weight 60t
Light Displacement 1935t
Loaded Displacement 2435t
Full Displacement 3016t
res buoyancy 19%
Max Surf Spd 20.4 knots
Max Sub Spd 9.9 knots

Length: 95.0m
Beam: 10.0m
Draft: 6.4m
Crush depth: 250m
#TT 10 x 21" (10 reloads)
Tons Oil: 500.0t
Tons Battery: 500.0t

Surface Range 17,717@10 knots
Underwater range 240@4 knots

main armament in two dual unarmored turrets, one forward and one aft of conning tower. A circular trunk ran from each mounting to the magazine in the pressure hull which contained 100 rounds per gun. A working chamber 10 feet in diameter encircled the trunk between the pressure hull and the gun mount.

Presidente Malvar (ex-Kornilov Class,) Filipino Coast Defence ship laid down 1935

Presidente Malvar, laid down 1935

Displacement:
14,977 t light; 15,951 t standard; 16,937 t normal; 17,726 t full load

Dimensions: Length overall / water x beam x draught
484.23 ft / 480.00 ft x 80.00 ft x 23.75 ft (normal load)
147.59 m / 146.30 m x 24.38 m x 7.24 m

Armament:
6 - 13.39" / 340 mm guns (2x3 guns), 1,400.00lbs / 635.03kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
12 - 5.31" / 135 mm guns (6x2 guns), 75.07lbs / 34.05kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, 2 raised mounts
16 - 1.57" / 40.0 mm guns (8x2 guns), 1.95lbs / 0.88kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1935 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 9,336 lbs / 4,235 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.0" / 356 mm 325.00 ft / 99.06 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 104 % of normal length

- Torpedo Bulkhead:
1.50" / 38 mm 325.00 ft / 99.06 m 24.00 ft / 7.32 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 9.00" / 229 mm 11.0" / 279 mm
2nd: 4.00" / 102 mm 1.50" / 38 mm 2.00" / 51 mm
3rd: 0.50" / 13 mm - -

- Armour deck: 4.75" / 121 mm, Conning tower: 12.00" / 305 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 32,353 shp / 24,135 Kw = 22.00 kts
Range 2,500nm at 20.00 kts
Bunker at max displacement = 1,774 tons

Complement:
742 - 965

Cost:
£7.670 million / $30.682 million

Distribution of weights at normal displacement:
Armament: 1,016 tons, 6.0 %
Armour: 6,507 tons, 38.4 %
- Belts: 1,994 tons, 11.8 %
- Torpedo bulkhead: 433 tons, 2.6 %
- Armament: 1,325 tons, 7.8 %
- Armour Deck: 2,585 tons, 15.3 %
- Conning Tower: 171 tons, 1.0 %
Machinery: 919 tons, 5.4 %
Hull, fittings & equipment: 6,435 tons, 38.0 %
Fuel, ammunition & stores: 1,960 tons, 11.6 %
Miscellaneous weights: 100 tons, 0.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
23,867 lbs / 10,826 Kg = 19.9 x 13.4 " / 340 mm shells or 4.6 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 4.0 ft / 1.2 m
Roll period: 16.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.78
Seaboat quality (Average = 1.00): 1.15

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.650
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 21.91 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 61
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 (20 %): 17.50 ft / 5.33 m
- Mid (40 %): 15.50 ft / 4.72 m
- Quarterdeck (15 %): 15.50 ft / 4.72 m
- Stern: 15.50 ft / 4.72 m
- Average freeboard: 16.62 ft / 5.07 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.6 %
- Above water (accommodation/working, high = better): 119.4 %
Waterplane Area: 29,417 Square feet or 2,733 Square metres
Displacement factor (Displacement / loading): 102 %
Structure weight / hull surface area: 161 lbs/sq ft or 785 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.84
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Any particular reasons for the cruiser submarine?

Modified Presidente Malvar to Filipino standards. 25% modifications

Presidente Malvar, Philippines Coastal Defense Battleship laid down 1935

Displacement:
15,005 t light; 15,951 t standard; 16,937 t normal; 17,726 t full load

Dimensions: Length overall / water x beam x draught
484.23 ft / 480.00 ft x 80.00 ft x 23.75 ft (normal load)
147.59 m / 146.30 m x 24.38 m x 7.24 m

Armament:
6 - 13.39" / 340 mm guns (2x3 guns), 1,400.00lbs / 635.03kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
12 - 4.53" / 115 mm guns (6x2 guns), 46.40lbs / 21.05kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread, 2 raised mounts
16 - 1.38" / 35.0 mm guns (8x2 guns), 1.31lbs / 0.59kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 0.59" / 15.0 mm guns (8x2 guns), 0.10lbs / 0.05kg shells, 1935 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 8,979 lbs / 4,073 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 15.0" / 381 mm 325.00 ft / 99.06 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 104 % of normal length

- Torpedo Bulkhead:
1.50" / 38 mm 325.00 ft / 99.06 m 24.00 ft / 7.32 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15.0" / 381 mm 9.00" / 229 mm 11.0" / 279 mm
2nd: 4.00" / 102 mm 1.50" / 38 mm 2.00" / 51 mm
3rd: 0.50" / 13 mm - -

- Armour deck: 4.75" / 121 mm, Conning tower: 12.50" / 318 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 32,353 shp / 24,135 Kw = 22.00 kts
Range 2,500nm at 20.00 kts
Bunker at max displacement = 1,774 tons

Complement:
742 - 965

Cost:
£7.485 million / $29.939 million

Distribution of weights at normal displacement:
Armament: 972 tons, 5.7 %
Armour: 6,654 tons, 39.3 %
- Belts: 2,136 tons, 12.6 %
- Torpedo bulkhead: 433 tons, 2.6 %
- Armament: 1,323 tons, 7.8 %
- Armour Deck: 2,585 tons, 15.3 %
- Conning Tower: 178 tons, 1.0 %
Machinery: 919 tons, 5.4 %
Hull, fittings & equipment: 6,359 tons, 37.5 %
Fuel, ammunition & stores: 1,932 tons, 11.4 %
Miscellaneous weights: 100 tons, 0.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
24,648 lbs / 11,180 Kg = 20.6 x 13.4 " / 340 mm shells or 4.8 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 4.0 ft / 1.2 m
Roll period: 16.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.75
Seaboat quality (Average = 1.00): 1.15

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.650
Length to Beam Ratio: 6.00 : 1
'Natural speed' for length: 21.91 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 61
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 (20 %): 17.50 ft / 5.33 m
- Mid (40 %): 15.50 ft / 4.72 m
- Quarterdeck (15 %): 15.50 ft / 4.72 m
- Stern: 15.50 ft / 4.72 m
- Average freeboard: 16.62 ft / 5.07 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 83.9 %
- Above water (accommodation/working, high = better): 119.4 %
Waterplane Area: 29,417 Square feet or 2,733 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 159 lbs/sq ft or 775 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.84
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform