WesWorld

Polish goverment request all in therested partys to submit a submarine design.
Poland is lookining for a Ship of 800t-1000t despacment armed with 1 or 2 110mm guns in wet mounts and AA weaponry on the Conning tower .Armed with 533mm torpedos 4 or 6 front 2 back and reloads diving depth of 80meters (depth of the baltic)
Range 5000Nm.

Poland will like to buy 6 units.

Nordmark's first bid:

P Class , Normark built Polish Submarine laid down 1930

Displacement:
905 t light; 932 t standard; 998 t normal; 1,052 t full load

Dimensions: Length overall / water x beam x draught
200.00 ft / 200.00 ft x 24.00 ft x 13.00 ft (normal load)
60.96 m / 60.96 m x 7.32 m x 3.96 m

Armament:
2 - 4.30" / 110 mm guns in single mounts, 40.61lbs / 18.03kg shells, 1930 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
4 - 0.30" / 7.6 mm guns (2x2 guns), 0.01lbs / 0.01kg shells, 1930 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 80 lbs / 36 kg
Shells per gun, main battery: 150
2 - 21.0" / 533.4 mm above water torpedoes, 6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:

- Conning tower: 2.00" / 51 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 1,588 shp / 1,185 Kw = 15.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 120 tons

Complement:
88 - 115

Cost:
£0.196 million / $0.782 million

Distribution of weights at normal displacement:
Armament: 10 tons, 1.0 %
Armour: 4 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.4 %
Machinery: 48 tons, 4.8 %
Hull, fittings & equipment: 593 tons, 59.4 %
Fuel, ammunition & stores: 93 tons, 9.3 %
Miscellaneous weights: 250 tons, 25.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
435 lbs / 197 Kg = 10.9 x 4.3 " / 109 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.560
Length to Beam Ratio: 8.33 : 1
'Natural speed' for length: 14.14 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 108.7 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,381 Square feet or 314 Square metres
Displacement factor (Displacement / loading): 232 %
Structure weight / hull surface area: 127 lbs/sq ft or 618 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 4.06
- Longitudinal: 2.13
- Overall: 2.51
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

6 ships P1-6

8 torpedo tubes
4 fore(reloadable)
2 fore(non-reloadable)
2 aft

8 reloads

Nordmarks second bid

P Class , Normark built Polish Submarine laid down 1930

Displacement:
913 t light; 937 t standard; 1,004 t normal; 1,057 t full load

Dimensions: Length overall / water x beam x draught
200.00 ft / 200.00 ft x 23.00 ft x 13.40 ft (normal load)
60.96 m / 60.96 m x 7.01 m x 4.08 m

Armament:
1 - 4.30" / 110 mm guns in single mounts, 40.61lbs / 18.03kg shells, 1930 Model
Breech loading gun in deck mount
on centreline forward
4 - 0.30" / 7.6 mm guns (2x2 guns), 0.01lbs / 0.01kg shells, 1930 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 40 lbs / 18 kg
Shells per gun, main battery: 150
2 - 21.0" / 533.4 mm above water torpedoes, 6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:

- Conning tower: 2.00" / 51 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 1,595 shp / 1,190 Kw = 15.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 121 tons

Complement:
88 - 115

Cost:
£0.179 million / $0.718 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.5 %
Armour: 4 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.4 %
Machinery: 48 tons, 4.8 %
Hull, fittings & equipment: 606 tons, 60.4 %
Fuel, ammunition & stores: 90 tons, 9.0 %
Miscellaneous weights: 250 tons, 24.9 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
456 lbs / 207 Kg = 11.5 x 4.3 " / 109 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.03
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.570
Length to Beam Ratio: 8.70 : 1
'Natural speed' for length: 14.14 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 105.5 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,271 Square feet or 304 Square metres
Displacement factor (Displacement / loading): 257 %
Structure weight / hull surface area: 130 lbs/sq ft or 634 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 4.28
- Longitudinal: 2.30
- Overall: 2.69
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

6 ships P1-6

8 torpedo tubes
4 fore(reloadable)
2 fore(non-reloadable)
2 aft

8 reloads

And another option

P Class , Normark built Polish Submarine laid down 1930

Displacement:
901 t light; 927 t standard; 994 t normal; 1,047 t full load

Dimensions: Length overall / water x beam x draught
200.00 ft / 200.00 ft x 23.00 ft x 13.50 ft (normal load)
60.96 m / 60.96 m x 7.01 m x 4.11 m

Armament:
2 - 4.30" / 110 mm guns in single mounts, 40.61lbs / 18.03kg shells, 1930 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
4 - 0.30" / 7.6 mm guns (2x2 guns), 0.01lbs / 0.00kg shells, 1930 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 80 lbs / 36 kg
Shells per gun, main battery: 150
2 - 21.0" / 533.4 mm above water torpedoes, 6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:

- Conning tower: 2.00" / 51 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 1,582 shp / 1,180 Kw = 15.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 120 tons

Complement:
88 - 115

Cost:
£0.195 million / $0.779 million

Distribution of weights at normal displacement:
Armament: 10 tons, 1.0 %
Armour: 4 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.4 %
Machinery: 48 tons, 4.8 %
Hull, fittings & equipment: 588 tons, 59.2 %
Fuel, ammunition & stores: 93 tons, 9.4 %
Miscellaneous weights: 250 tons, 25.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
381 lbs / 173 Kg = 9.6 x 4.3 " / 109 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.560
Length to Beam Ratio: 8.70 : 1
'Natural speed' for length: 14.14 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 114.6 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,241 Square feet or 301 Square metres
Displacement factor (Displacement / loading): 231 %
Structure weight / hull surface area: 127 lbs/sq ft or 618 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 4.07
- Longitudinal: 2.29
- Overall: 2.65
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

6 ships P1-6

8 torpedo tubes
4 fore(reloadable)
2 fore(non-reloadable)
2 aft

8 reloads

kiosk = Conning Tower

The Bharatiya Nau Sena's Client Services Division is pleased to offer Design Study PSS-30-1, adapted from internal design studies.

The design team has commented that they feel the range of the boat can be enhanced above the 5000 nm specified by the tender.

India offers competitive rates for shipbuilding, and has satisfied clients such as South Africa, the Philippines, and more recently, Turkey. Contact our European office at our embassy in Berlin for further information.

PSS301, laid down 1930

Length, 60.0 m x Beam, 7.5 m x Depth, 5.1 m
1088 tonnes normal displacement (977 tonnes standard)

Main battery: 1 x 11.0-cm
Secondary battery: 1 x 3.5-cm
AA battery: 2 x 1.5-cm

Weight of broadside: 19 kg

6 TT, 53.3 cm (submerged) (4 F, 2 A)

Hull unarmored

Battery armor:
Main, 2.0 cm shields / secondary, 2.0 cm shields
AA, 2.0 cm shields

Maximum speed for 2499 shaft kw = 17.89 knots
Approximate cruising radius, 5000 nm / 12 knots

Miscellaneous Weight Allocation:
-20 t: ten reloads: eight forward, two aft
-200 t: ballast (~19% of normal displacement)

Operational Diving Depth: 105 m
Emergency Diving Depth: 163 m
Crush Depth: 263 m

Typical complement: 95-123


Estimated cost, $869,000 (£217,000)

Remarks:

Caution: lacks seaworthiness -- very limited seakeeping ability.

Caution: Very cramped ship with excessively poor habitability;
lacks suitable working space.

Ship has quick, 'lively' roll; not a steady gun platform.

Magazines and engineering spaces are cramped, with poor
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 5 tonnes = 0 pct
Armor, total ..................... 1 tonnes = 0 pct

Armament 1 tonnes = 0 pct

Machinery ........................ 101 tonnes = 9 pct
Hull and fittings; equipment ..... 624 tonnes = 57 pct
Fuel, ammunition, stores ......... 136 tonnes = 13 pct
Miscellaneous weights ............ 220 tonnes = 20 pct
-----
1088 tonnes = 100 pct

Estimated metacentric height, 0.2 m

Displacement summary:

Light ship: 952 tonnes
Standard displacement: 977 tonnes
Normal service: 1088 tonnes
Full load: 1172 tonnes

Loading submergence 274 tonnes/metre

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.01

Shellfire needed to sink: 158 kg = 8.6 x 11.0-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.1
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 1 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 0.00

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.47
Sharpness coefficient: 0.35
Hull speed coefficient 'M' = 5.85
'Natural speed' for length = 14.0 knots
Power going to wave formation
at top speed: 55 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 126 percent

Relative accommodation and working space: 1 percent


Displacement factor: 233 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 3.55
(Structure weight per square
metre of hull surface: 632 kg)

Relative longitudinal hull strength: 3.53
(for 0.03 m average freeboard;
freeboard adjustment -2.93 m)

Relative composite hull strength: 3.53

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

196.80 x 24.60 x 16.73; 0.10 -- Dimensions
0.47 -- Block coefficient
1930 -- Year laid down
17.89 / 5000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
220 tons -- Miscellaneous weights
++++++++++
1 x 4.33; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
1 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
2 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
6 / 6 / 20.98 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.79 / 0.79 / 0.79 / 0.00 -- Battery armor


(Note: For portability, values are stored in Anglo-American units)


+++++++++++++++++++++++++++++++++++++++++++++++++++++++

The Armada de Filipinas Design Office offers the following design.

Gun armament is a single 110mm weapon forwards of the conning tower, with a quad 'Buzzsaw' AA mount aft.

Torpedo armament is four internal tubes forwards, two internal tubes aft, and two trainable tubes in a mounting on the fo'c'stle.

Operational diving depth is 60 meters, while emergency diving depth is 90 meters. If a "normal operational" depth of 80 meters is required, the design can be enlarged if requested.


SS30-P, laid down 1930

Length, 230 ft x Beam, 21.4 ft x Depth, 12.9 ft
904 tons normal displacement (790 tons standard)

Main battery: 1 x 110mm
Secondary battery: 4 x 13.7mm

Weight of broadside: 41 lbs

8 TT, 533mm (6 submerged)

Operational diving depth: 60 meters
Emergency diving depth: 90 meters
Crush depth: 140 meters

Maximum speed for 1399 shp = 14.97 knots
Approximate cruising radius, 6000 nm / 12 kts

Typical complement: 82-107


Estimated cost, $621,000 (£155,000)

Remarks:

Caution: lacks seaworthiness -- very limited seakeeping ability.

Caution: Very cramped ship with excessively poor habitability;
lacks suitable working space.

Ship has quick, 'lively' roll; not a steady gun platform.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 5 tons = 1 pct
Machinery ........................ 42 tons = 5 pct
Hull and fittings; equipment ..... 521 tons = 58 pct
Fuel, ammunition, stores ......... 136 tons = 15 pct
Miscellaneous weights ............ 200 tons = 22 pct
-----
904 tons = 100 pct

Estimated metacentric height, 0.6 ft

Displacement summary:

Light ship: 768 tons
Standard displacement: 790 tons
Normal service: 904 tons
Full load: 992 tons

Loading submergence 88 tons/foot

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.06

Shellfire needed to sink: 510 lbs = 12.6 x 4.3-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.2
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 1 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 0.00

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.50
Sharpness coefficient: 0.32
Hull speed coefficient 'M' = 7.27
'Natural speed' for length = 15.2 knots
Power going to wave formation
at top speed: 38 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 92 percent

Relative accommodation and working space: 1 percent


Displacement factor: 278 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 3.73
(Structure weight per square
foot of hull surface: 110 lbs)

Relative longitudinal hull strength: 1.55
(for 0.1 ft average freeboard;
freeboard adjustment -9.3 ft)

Relative composite hull strength: 1.93

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

230.00 x 21.35 x 12.89; 0.10 -- Dimensions
0.50 -- Block coefficient
1930 -- Year laid down
14.97 / 6000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
200 tons -- Miscellaneous weights
++++++++++
1 x 4.33; 0 -- Main battery; turrets
Central positioning of guns
:
4 x 0.54; 0 -- Secondary battery; turrets
:
0 -- No tertiary (QF/AA) battery
0 -- No fourth (light) battery
8 / 6 / 21.00 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.00 -- No battery armor


+++++++++++++++++++++++++++++++++++++++++++++++++++++++

Polish goverment wishes to thank for all the offers.
After the initial viewing of the offers poland wishies to clarify the reqest.
Turn turn table torpedo tubes are belived to be unnesesery and of limited use to the weasle ,they are limiting the hull space and are problematic to reload.
Further more polish armed forces belive that anti-aircraft weapons of caliber smaller that 20mm are un effective againts large patrol planes that are belived to be main treats for a surficed submarine. weapons like the curent standard polish AA gun the 40mm AAcanon we dismisted by the navy early on as they are to large for a submarine.

Germany will be submitting a design, but it's not done yet.

India believes that the 3.5 cm and 1.5 cm guns indicated in our design submission can be replaced with similar numbers of 4 cm and 2 cm guns, or a greater number of 2 cm guns, without any significant change to the design's other parameters. Please indicate if you would like the design to be revised to demonstrate this.

Please note also that the Indian design's torpedo armament is exclusively fixed submerged tubes.

Quoted

Originally posted by The Rock Doctor
India believes that the 3.5 cm and 1.5 cm guns indicated in our design submission can be replaced with similar numbers of 4 cm and 2 cm guns, or a greater number of 2 cm guns, without any significant change to the design's other parameters. Please indicate if you would like the design to be revised to demonstrate this.

Please note also that the Indian design's torpedo armament is exclusively fixed submerged tubes.

Poland welcomes the Indias design change and reqest a larger number of 2cm guns as 4cm guns are viewed as to large for a submarine.

We also noted the torpedo armament leyout curently the Indias offer is the must posible choise how ever whe will wait for other participants to present there offers.

Revised: I think three 2 cm guns is as much as the deck space will allow, really...

PSS301a, laid down 1930

Length, 60.0 m x Beam, 7.5 m x Depth, 5.1 m
1088 tonnes normal displacement (979 tonnes standard)

Main battery: 1 x 11.0-cm
Secondary battery: 3 x 2.0-cm (1x2, 1x1)

Weight of broadside: 19 kg

6 TT, 53.3 cm (submerged)

Hull unarmored

Battery armor:
Main, 2.0 cm shields / secondary, 2.0 cm shields


Maximum speed for 2499 shaft kw = 17.89 knots
Approximate cruising radius, 5000 nm / 12 knots

Typical complement: 95-123


Estimated cost, $869,000 (£217,000)

Remarks:

Caution: lacks seaworthiness -- very limited seakeeping ability.

Caution: Very cramped ship with excessively poor habitability;
lacks suitable working space.

Ship has quick, 'lively' roll; not a steady gun platform.

Magazines and engineering spaces are cramped, with poor
watertight subdivision.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 5 tonnes = 0 pct
Armor, total ..................... 1 tonnes = 0 pct

Armament 1 tonnes = 0 pct

Machinery ........................ 101 tonnes = 9 pct
Hull and fittings; equipment ..... 626 tonnes = 58 pct
Fuel, ammunition, stores ......... 134 tonnes = 12 pct
Miscellaneous weights ............ 220 tonnes = 20 pct
-----
1088 tonnes = 100 pct

Estimated metacentric height, 0.2 m

Displacement summary:

Light ship: 954 tonnes
Standard displacement: 979 tonnes
Normal service: 1088 tonnes
Full load: 1170 tonnes

Loading submergence 274 tonnes/metre

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.01

Shellfire needed to sink: 159 kg = 8.6 x 11.0-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.1
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 1 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 0.00

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.47
Sharpness coefficient: 0.35
Hull speed coefficient 'M' = 5.85
'Natural speed' for length = 14.0 knots
Power going to wave formation
at top speed: 55 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 125 percent

Relative accommodation and working space: 1 percent


Displacement factor: 233 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 3.57
(Structure weight per square
metre of hull surface: 635 kg)

Relative longitudinal hull strength: 3.54
(for 0.03 m average freeboard;
freeboard adjustment -2.93 m)

Relative composite hull strength: 3.55

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

196.80 x 24.60 x 16.73; 0.10 -- Dimensions
0.47 -- Block coefficient
1930 -- Year laid down
17.89 / 5000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
220 tons -- Miscellaneous weights
++++++++++
1 x 4.33; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
3 x 0.79; 0 -- Secondary battery; turrets
Gun-shields
:
0 -- No tertiary (QF/AA) battery
0 -- No fourth (light) battery
6 / 6 / 20.98 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.79 / 0.79 / 0.00 / 0.00 -- Battery armor


(Note: For portability, values are stored in Anglo-American units)


+++++++++++++++++++++++++++++++++++++++++++++++++++++++

And here's Germany's submission. The German engineers see no problem in mounting a single cannon of 37-40mm on the deck of the submarine, after all, if there's room for a 110mm, there's room for a 37-40mm weapon.

Type P, German Submarine laid down 1930

Displacement:
940 t light; 964 t standard; 1,033 t normal; 1,088 t full load

Dimensions: Length overall / water x beam x draught
228.02 ft / 226.38 ft x 24.61 ft x 14.11 ft (normal load)
69.50 m / 69.00 m x 7.50 m x 4.30 m

Armament:
1 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1930 Model
Anti-aircraft gun in deck mount
on centreline aft
1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1929 Model
Anti-aircraft gun in deck mount
on centreline forward
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1930 Model
Breech loading guns in deck mounts
on centreline, all amidships
Weight of broadside 43 lbs / 19 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:

- Conning tower: 0.79" / 20 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 1,948 shp / 1,453 Kw = 16.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 124 tons

Complement:
90 - 118

Cost:
£0.191 million / $0.763 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.5 %
Armour: 2 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.2 %
Machinery: 59 tons, 5.7 %
Hull, fittings & equipment: 654 tons, 63.3 %
Fuel, ammunition & stores: 93 tons, 9.0 %
Miscellaneous weights: 220 tons, 21.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
636 lbs / 288 Kg = 15.7 x 4.3 " / 110 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.460
Length to Beam Ratio: 9.20 : 1
'Natural speed' for length: 15.05 kts
Power going to wave formation at top speed: 43 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.7 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,583 Square feet or 333 Square metres
Displacement factor (Displacement / loading): 270 %
Structure weight / hull surface area: 127 lbs/sq ft or 618 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.92
- Longitudinal: 2.08
- Overall: 2.44
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

4 tubes are forward, 2 aft. 8 reload torpedoes forward, 2 aft.

20 tons of the miscellaneous tonnage are for 10 reload torpedoes.

Revised Filipino submission. Gun armament 1 110mm forwards and a twin 35mm AA aft. Torpedo armament 6 21" tubes forwards and two 21" tubes aft. Full set of reloads. Operational diving depth of 80 meters.

It is a tick oversised, but...

SS-30P, laid down 1930

Length, 230 ft x Beam, 25.0 ft x Depth, 15.0 ft
1232 tons normal displacement (1106 tons standard)

Main battery: 1 x 110mm
Secondary battery: 2 x 35mm

Weight of broadside: 43 lbs

8 TT, 533mm (submerged)

Operational diving depth, 80 meters

Maximum speed for 1750 shp = 15.09 knots
Approximate cruising radius, 5500 nm / 12 kts

Typical complement: 104-135


Estimated cost, $831,000 (£208,000)

Remarks:

Caution: lacks seaworthiness -- very limited seakeeping ability.

Caution: Very cramped ship with excessively poor habitability;
lacks suitable working space.

Ship has quick, 'lively' roll; not a steady gun platform.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 5 tons = 0 pct
Machinery ........................ 53 tons = 4 pct
Hull and fittings; equipment ..... 770 tons = 62 pct
Fuel, ammunition, stores ......... 154 tons = 13 pct
Miscellaneous weights ............ 250 tons = 20 pct
-----
1232 tons = 100 pct

Estimated metacentric height, 0.8 ft

Displacement summary:

Light ship: 1078 tons
Standard displacement: 1106 tons
Normal service: 1232 tons
Full load: 1328 tons

Loading submergence 103 tons/foot

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.11

Shellfire needed to sink: 563 lbs = 13.9 x 4.3-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.2
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 1 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 0.00

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.50
Sharpness coefficient: 0.34
Hull speed coefficient 'M' = 6.56
'Natural speed' for length = 15.2 knots
Power going to wave formation
at top speed: 41 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 108 percent

Relative accommodation and working space: 1 percent


Displacement factor: 309 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 4.09
(Structure weight per square
foot of hull surface: 139 lbs)

Relative longitudinal hull strength: 2.27
(for 0.1 ft average freeboard;
freeboard adjustment -9.9 ft)

Relative composite hull strength: 2.63

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

230.00 x 25.00 x 15.00; 0.10 -- Dimensions
0.50 -- Block coefficient
1930 -- Year laid down
15.09 / 5500 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
250 tons -- Miscellaneous weights
++++++++++
1 x 4.33; 0 -- Main battery; turrets
Central positioning of guns
:
2 x 1.38; 0 -- Secondary battery; turrets
:
0 -- No tertiary (QF/AA) battery
0 -- No fourth (light) battery
8 / 8 / 21.00 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.00 -- No battery armor


+++++++++++++++++++++++++++++++++++++++++++++++++++++++

Atlantis would like to submit its initial design.

Orzel, Polish Submarine (Atlantean design) laid down 1930

Displacement:
936 t light; 966 t standard; 1,083 t normal; 1,176 t full load

Dimensions: Length overall / water x beam x draught
220.00 ft / 220.00 ft x 24.00 ft x 14.50 ft (normal load)
67.06 m / 67.06 m x 7.32 m x 4.42 m

Armament:
2 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1930 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread
2 - 1.57" / 39.9 mm guns in single mounts, 1.93lbs / 0.88kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on centreline, all amidships, all raised mounts - superfiring
2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1930 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 95 lbs / 43 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm submerged torpedo tubes 4 forward, 2 aft, 12 reloads

Armour:

- Conning tower: 1.38" / 35 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 2,040 shp / 1,522 Kw = 16.00 kts
Range 5,500nm at 12.00 kts
Bunker at max displacement = 210 tons

Complement:
93 - 122

Cost:
£0.215 million / $0.860 million

Distribution of weights at normal displacement:
Armament: 12 tons, 1.1 %
Armour: 3 tons, 0.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.3 %
Machinery: 62 tons, 5.7 %
Hull, fittings & equipment: 635 tons, 58.7 %
Fuel, ammunition & stores: 146 tons, 13.5 %
Miscellaneous weights: 224 tons, 20.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
576 lbs / 261 Kg = 12.6 x 4.5 " / 114 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.495
Length to Beam Ratio: 9.17 : 1
'Natural speed' for length: 14.83 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96.9 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,502 Square feet or 325 Square metres
Displacement factor (Displacement / loading): 243 %
Structure weight / hull surface area: 123 lbs/sq ft or 602 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.49
- Longitudinal: 2.12
- Overall: 2.40
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

Operational depth 240 feet
Emergency depth 384 feet
Crush depth 600 feet

Redesign from Nordmark

P Class , Normark built Polish Submarine laid down 1930

Displacement:
900 t light; 927 t standard; 994 t normal; 1,047 t full load

Dimensions: Length overall / water x beam x draught
200.00 ft / 200.00 ft x 23.00 ft x 13.50 ft (normal load)
60.96 m / 60.96 m x 7.01 m x 4.11 m

Armament:
2 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1930 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, all amidships
2 - 0.30" / 7.6 mm guns in single mounts, 0.01lbs / 0.01kg shells, 1930 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 82 lbs / 37 kg
Shells per gun, main battery: 150
6 - 21.0" / 533 mm submerged torpedo tubes

Armour:

- Conning tower: 2.00" / 51 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 1,582 shp / 1,180 Kw = 15.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 120 tons

Complement:
88 - 115

Cost:
£0.196 million / $0.784 million

Distribution of weights at normal displacement:
Armament: 10 tons, 1.0 %
Armour: 4 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.4 %
Machinery: 48 tons, 4.8 %
Hull, fittings & equipment: 588 tons, 59.1 %
Fuel, ammunition & stores: 93 tons, 9.4 %
Miscellaneous weights: 250 tons, 25.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
378 lbs / 172 Kg = 9.3 x 4.3 " / 110 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.560
Length to Beam Ratio: 8.70 : 1
'Natural speed' for length: 14.14 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 115.1 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,241 Square feet or 301 Square metres
Displacement factor (Displacement / loading): 230 %
Structure weight / hull surface area: 127 lbs/sq ft or 618 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 4.06
- Longitudinal: 2.29
- Overall: 2.64
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

6 ships P1-6

5 torpedo tubes
4 fore(reloadable)
2 aft

8 reloads

The initial offers selected by the admirality are

Normark's P Class
German Type P
Indian PSS301a
Philipino SS-30P althou its over sized its TT armament is wery much of the admirality liking.

Poland also wishes to infrom all iterested partys that
Poland is not willing to add any more calibers to the fleet
Poland manufacture the foloving calibers.
7,98 mm mauser
20mm
40mm
76,2mm
110mm

Revised again

P Class , Normark built Polish Submarine laid down 1930

Displacement:
900 t light; 927 t standard; 994 t normal; 1,047 t full load

Dimensions: Length overall / water x beam x draught
200.00 ft / 200.00 ft x 23.00 ft x 13.50 ft (normal load)
60.96 m / 60.96 m x 7.01 m x 4.11 m

Armament:
2 - 4.33" / 110 mm guns in single mounts, 40.61lbs / 18.42kg shells, 1930 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on centreline, all amidships
2 - 0.31" / 7.9 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1930 Model
Machine guns in deck mounts
on side, all amidships
Weight of broadside 82 lbs / 37 kg
Shells per gun, main battery: 150
6 - 21.0" / 533 mm submerged torpedo tubes

Armour:

- Conning tower: 2.00" / 51 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 1,582 shp / 1,180 Kw = 15.00 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 120 tons

Complement:
88 - 115

Cost:
£0.196 million / $0.783 million

Distribution of weights at normal displacement:
Armament: 10 tons, 1.0 %
Armour: 4 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 4 tons, 0.4 %
Machinery: 48 tons, 4.8 %
Hull, fittings & equipment: 588 tons, 59.2 %
Fuel, ammunition & stores: 93 tons, 9.4 %
Miscellaneous weights: 250 tons, 25.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
379 lbs / 172 Kg = 9.3 x 4.3 " / 110 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.8 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.560
Length to Beam Ratio: 8.70 : 1
'Natural speed' for length: 14.14 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 115.0 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,241 Square feet or 301 Square metres
Displacement factor (Displacement / loading): 230 %
Structure weight / hull surface area: 127 lbs/sq ft or 618 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 4.07
- Longitudinal: 2.29
- Overall: 2.64
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

6 ships P1-6

5 torpedo tubes
4 fore(reloadable)
2 aft

8 reloads

Revised armament. Twin 35mm replaced by twin 20mm, and a Mauser added atop the conning tower.

Also, 500nm additional range has been provided.


SS-30P Mk III, laid down 1930

Length, 230 ft x Beam, 25.0 ft x Depth, 15.0 ft
1232 tons normal displacement (1095 tons standard)

Main battery: 1 x 110mm
AA battery: 2 x 20mm
Light battery: 1 x 7.98mm

Weight of broadside: 41 lbs

8 TT, 533mm (submerged, 6 forwards/2 aft)

Operational diving depth, 80 meters

Maximum speed for 1750 shp = 15.09 knots
Approximate cruising radius, 6000 nm / 12 kts

Typical complement: 104-135


Estimated cost, $821,000 (£205,000)


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 5 tons = 0 pct
Machinery ........................ 53 tons = 4 pct
Hull and fittings; equipment ..... 759 tons = 62 pct
Fuel, ammunition, stores ......... 165 tons = 13 pct
Miscellaneous weights ............ 250 tons = 20 pct
-----
1232 tons = 100 pct

Estimated metacentric height, 0.8 ft

Displacement summary:

Light ship: 1067 tons
Standard displacement: 1095 tons
Normal service: 1232 tons
Full load: 1337 tons

Loading submergence 103 tons/foot

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.11

Shellfire needed to sink: 671 lbs = 16.5 x 4.3-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 0.2
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 1 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.00

Relative quality as a seaboat: 0.00

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.50
Sharpness coefficient: 0.34
Hull speed coefficient 'M' = 6.56
'Natural speed' for length = 15.2 knots
Power going to wave formation
at top speed: 41 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 98 percent

Relative accommodation and working space: 1 percent


Displacement factor: 310 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 4.04
(Structure weight per square
foot of hull surface: 137 lbs)

Relative longitudinal hull strength: 2.24
(for 0.1 ft average freeboard;
freeboard adjustment -9.9 ft)

Relative composite hull strength: 2.60

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

230.00 x 25.00 x 15.00; 0.10 -- Dimensions
0.50 -- Block coefficient
1930 -- Year laid down
15.09 / 6000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
250 tons -- Miscellaneous weights
++++++++++
1 x 4.33; 0 -- Main battery; turrets
Central positioning of guns
:
0 -- No secondary battery
2 x 0.79 -- Tertiary (QF/AA) battery
:
1 x 0.31 -- Fourth (light) battery
8 / 8 / 21.00 -- TT / submerged / size
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.00 -- No battery armor


+++++++++++++++++++++++++++++++++++++++++++++++++++++++

Revised design, to meet the requirements a little more closely (and to remove some bugs in the armament stats).

Orzel, Atlantean Submarine laid down 1930

Displacement:
960 t light; 987 t standard; 1,094 t normal; 1,179 t full load

Dimensions: Length overall / water x beam x draught
220.00 ft / 220.00 ft x 24.00 ft x 14.50 ft (normal load)
67.06 m / 67.06 m x 7.32 m x 4.42 m

Armament:
1 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1930 Model
Breech loading gun in a deck mount with hoist
on centreline forward
2 - 1.58" / 40.1 mm guns in single mounts, 1.97lbs / 0.89kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on centreline, all amidships, all raised mounts - superfiring
2 - 0.79" / 20.1 mm guns in single mounts, 0.25lbs / 0.11kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 50 lbs / 23 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm submerged torpedo tubes

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 2,055 shp / 1,533 Kw = 16.00 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 193 tons

Complement:
94 - 123

Cost:
£0.199 million / $0.796 million

Distribution of weights at normal displacement:
Armament: 6 tons, 0.6 %
Machinery: 62 tons, 5.7 %
Hull, fittings & equipment: 692 tons, 63.2 %
Fuel, ammunition & stores: 134 tons, 12.2 %
Miscellaneous weights: 200 tons, 18.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
695 lbs / 315 Kg = 15.3 x 4.5 " / 114 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 0.8 ft / 0.2 m
Roll period: 11.5 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 0.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.500
Length to Beam Ratio: 9.17 : 1
'Natural speed' for length: 14.83 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 84.3 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,518 Square feet or 327 Square metres
Displacement factor (Displacement / loading): 292 %
Structure weight / hull surface area: 134 lbs/sq ft or 653 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.96
- Longitudinal: 2.31
- Overall: 2.65
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

Operational depth 265 feet (79.5 metres)
Emergency depth 424 feet (127 metres)
Crush depth 662 feet (198 metres)