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This post has been edited 6 times, last edit by "TexanCowboy" (Dec 3rd 2010, 3:39am)

The new miniture submarine's of the Latvian Navy. These ships have been built to fuiltify the requirments of the subchaser training fleet, to serve as coastal defense ships, and to serve as harbor assault ships.

Baltica, Latvian Minisub laid down 1938

Displacement:

25 t light; 28 t standard; 32 t normal; 35 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)

(42.45 ft / 42.45 ft) x 8.00 ft x (6.00 / 6.45 ft)

(12.94 m / 12.94 m) x 2.44 m x (1.83 / 1.97 m)

Armament:

2 - 21.0" / 533 mm, 2.000 ft / 4.57 m torpedoes - 1.700 t each, 3.400 t total

In 2 sets of submerged bow tubes

Machinery:

Petrol Internal combustion generators plus batteries,

Electric motors, 1 shaft, 356 shp / 266 Kw = 14.00 kts

Range 1,450nm at 10.00 kts

Bunker at max displacement = 7 tons

Complement:

6 - 8

Cost:

£0.013 million / $0.051 million

Distribution of weights at normal displacement:

Armament: 2 tons, 6.7 %

- Torpedoes: 2 tons, 6.7 %

Machinery: 10 tons, 30.5 %

Hull, fittings & equipment: 7 tons, 22.1 %

Fuel, ammunition & stores: 7 tons, 20.4 %

Miscellaneous weights: 7 tons, 20.3 %

- Hull void weights: 6 tons

- On freeboard deck: 1 tons

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

-10 lbs / -5 Kg = -0.1 x 6 " / 152 mm shells or NaN torpedoes

Stability (Unstable if below 1.00): 1.26

Metacentric height 0.2 ft / 0.1 m

Roll period: 8.1 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,

a normal bow and a cruiser stern

Block coefficient (normal/deep): 0.550 / 0.559

Length to Beam Ratio: 5.31 : 1

'Natural speed' for length: 6.52 kts

Power going to wave formation at top speed: 83 %

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 (% = length of deck as a percentage of waterline length):

Fore end, Aft end

- Forecastle: 20.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m

- Forward deck: 30.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m

- Aft deck: 35.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m

- Quarter deck: 15.00 %, 0.00 ft / 0.00 m, 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): -180.7 %

- Above water (accommodation/working, high = better): 0.0 %

Waterplane Area: 230 Square feet or 21 Square metres

Displacement factor (Displacement / loading): 123 %

Structure weight / hull surface area: 19 lbs/sq ft or 91 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.46

- Longitudinal: 3.76

- Overall: 1.60

Hull space for machinery, storage, compartmentation is excellent

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

.5t deck weight: 1 single 23 mm gun and 1,000 rounds of ammo.

Baltica, Latvian Minisub laid down 1938

Displacement:

25 t light; 28 t standard; 32 t normal; 35 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)

(42.45 ft / 42.45 ft) x 8.00 ft x (6.00 / 6.45 ft)

(12.94 m / 12.94 m) x 2.44 m x (1.83 / 1.97 m)

Armament:

2 - 21.0" / 533 mm, 2.000 ft / 4.57 m torpedoes - 1.700 t each, 3.400 t total

In 2 sets of submerged bow tubes

Machinery:

Petrol Internal combustion generators plus batteries,

Electric motors, 1 shaft, 356 shp / 266 Kw = 14.00 kts

Range 1,450nm at 10.00 kts

Bunker at max displacement = 7 tons

Complement:

6 - 8

Cost:

£0.013 million / $0.051 million

Distribution of weights at normal displacement:

Armament: 2 tons, 6.7 %

- Torpedoes: 2 tons, 6.7 %

Machinery: 10 tons, 30.5 %

Hull, fittings & equipment: 7 tons, 22.1 %

Fuel, ammunition & stores: 7 tons, 20.4 %

Miscellaneous weights: 7 tons, 20.3 %

- Hull void weights: 6 tons

- On freeboard deck: 1 tons

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

-10 lbs / -5 Kg = -0.1 x 6 " / 152 mm shells or NaN torpedoes

Stability (Unstable if below 1.00): 1.26

Metacentric height 0.2 ft / 0.1 m

Roll period: 8.1 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,

a normal bow and a cruiser stern

Block coefficient (normal/deep): 0.550 / 0.559

Length to Beam Ratio: 5.31 : 1

'Natural speed' for length: 6.52 kts

Power going to wave formation at top speed: 83 %

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 (% = length of deck as a percentage of waterline length):

Fore end, Aft end

- Forecastle: 20.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m

- Forward deck: 30.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m

- Aft deck: 35.00 %, 0.00 ft / 0.00 m, 0.00 ft / 0.00 m

- Quarter deck: 15.00 %, 0.00 ft / 0.00 m, 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): -180.7 %

- Above water (accommodation/working, high = better): 0.0 %

Waterplane Area: 230 Square feet or 21 Square metres

Displacement factor (Displacement / loading): 123 %

Structure weight / hull surface area: 19 lbs/sq ft or 91 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 1.46

- Longitudinal: 3.76

- Overall: 1.60

Hull space for machinery, storage, compartmentation is excellent

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

.5t deck weight: 1 single 23 mm gun and 1,000 rounds of ammo.

This post has been edited 1 times, last edit by "TexanCowboy" (Jul 5th 2010, 9:05pm)

Displacement:

300 t light; 310 t standard; 328 t normal; 342 t full load

Dimensions: Length overall / water x beam x draught

141.08 ft / 141.08 ft x 15.75 ft x 11.48 ft (normal load)

43.00 m / 43.00 m x 4.80 m x 3.50 m

Armament:

1 - 2.99" / 76.0 mm guns in single mounts, 15.43lbs / 7.00kg shells, 1932 Model

Quick firing gun in a deck mount with hoist

on centreline forward

1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1932 Model

Anti-aircraft gun in deck mounts with hoists

on centreline, all aft

1 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1932 Model

Machine gun in deck mounts

on side, evenly spread

Weight of broadside 17 lbs / 8 kg

Shells per gun, main battery: 300

4 - 20.9" / 530 mm above water torpedoes, 4 - 20.9" / 530 mm submerged torpedo tubes

Machinery:

Diesel Internal combustion generators plus batteries,

Electric motors, 1 shaft, 887 shp / 661 Kw = 15.00 kts

Range 2,500nm at 10.00 kts

Bunker at max displacement = 33 tons

Complement:

19 - 25

Cost:

£0.072 million / $0.286 million

Distribution of weights at normal displacement:

Armament: 2 tons, 0.6 %

Machinery: 26 tons, 8.0 %

Hull, fittings & equipment: 187 tons, 57.1 %

Fuel, ammunition & stores: 28 tons, 8.4 %

Miscellaneous weights: 85 tons, 25.9 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship):

29 lbs / 13 Kg = 2.1 x 3.0 " / 76 mm shells or 0.1 torpedoes

Stability (Unstable if below 1.00): 1.03

Metacentric height 0.3 ft / 0.1 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: 0.450

Length to Beam Ratio: 8.96 : 1

'Natural speed' for length: 11.88 kts

Power going to wave formation at top speed: 51 %

Trim (Max stability = 0, Max steadiness = 100): 25

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): 241.5 %

- Above water (accommodation/working, high = better): 0.0 %

Waterplane Area: 1,350 Square feet or 125 Square metres

Displacement factor (Displacement / loading): 215 %

Structure weight / hull surface area: 82 lbs/sq ft or 401 Kg/sq metre

Hull strength (Relative):

- Cross-sectional: 3.31

- Longitudinal: 3.13

- Overall: 3.17

Hull space for machinery, storage, compartmentation is extremely poor

Room for accommodation and workspaces is extremely poor

Ship has quick, lively roll, not a steady gun platform

Normal Operation Depth: 317 feet

Emergancy Depth: 571 feet

Crush Depth: 793 feet

Afrika Class Submarines (ex-Yugoslavian(ex-SAE))

Length, 55.8 m x Beam, 5.8 m x Depth, 3.75 m

482 tonnes standard (635 tonnes submerged)

Diving Depth: 75 m

Main battery: 1 x 10.5-cm

5 TT (10), 50 cm

Maximum speed 13.5 knots surfaced

Maximum speed 7.5 knots submerged

Approximate cruising radius, 7500 nm / 6 knots surfaced

Approximate cruising radius, 55 nm / 4 knots submerged

Typical complement: 26-33

Oil firing

Magazines and engineering spaces are cramped, with poor watertight subdivision

Main deck guns subject to being washed down in a seaway

Length, 55.8 m x Beam, 5.8 m x Depth, 3.75 m

482 tonnes standard (635 tonnes submerged)

Diving Depth: 75 m

Main battery: 1 x 10.5-cm

5 TT (10), 50 cm

Maximum speed 13.5 knots surfaced

Maximum speed 7.5 knots submerged

Approximate cruising radius, 7500 nm / 6 knots surfaced

Approximate cruising radius, 55 nm / 4 knots submerged

Typical complement: 26-33

Oil firing

Magazines and engineering spaces are cramped, with poor watertight subdivision

Main deck guns subject to being washed down in a seaway

This post has been edited 1 times, last edit by "TexanCowboy" (Nov 26th 2010, 5:15pm)

Continental Class of Coastal Submarines

Date: 1940

Coastal

Armament 1x3" DP, 2x25 mm machine guns

ElecHP: 850 hp

DieselHP: 1600 hp

CREW: 27

wt fuel&batts: 167t

Light Displacement 448t

Loaded Displacement 506t

Full Displacement 559t

Reserve buoyancy: 10%

Max Surf Speed: 15.1 knots

Max Sub Speed: 8.5 knots

Length: 54.0 meters

Beam: 5.0 meters

Draft: 4.15 meters

Crush depth: 212.5 meters

#TT 6 x 533mm (4 bow, 2 stern) (2 reload torpedoes per tube, 12 total. 4 torpedoes simmed as mines, stored aft. 8 torpedoes simmed as part of misc weight, stored forwards.)

Mines: 6 tons (used to simulate four torpedoes, NOT mines)

Tons Oil: 50.0t

Tons Battery: 119.0t

Miscellaneous Weight: 20 tons

Surface Range: 3916nm@12 knots

Submerged Range: 100nm@5 knots

Date: 1940

Coastal

Armament 1x3" DP, 2x25 mm machine guns

ElecHP: 850 hp

DieselHP: 1600 hp

CREW: 27

wt fuel&batts: 167t

Light Displacement 448t

Loaded Displacement 506t

Full Displacement 559t

Reserve buoyancy: 10%

Max Surf Speed: 15.1 knots

Max Sub Speed: 8.5 knots

Length: 54.0 meters

Beam: 5.0 meters

Draft: 4.15 meters

Crush depth: 212.5 meters

#TT 6 x 533mm (4 bow, 2 stern) (2 reload torpedoes per tube, 12 total. 4 torpedoes simmed as mines, stored aft. 8 torpedoes simmed as part of misc weight, stored forwards.)

Mines: 6 tons (used to simulate four torpedoes, NOT mines)

Tons Oil: 50.0t

Tons Battery: 119.0t

Miscellaneous Weight: 20 tons

Surface Range: 3916nm@12 knots

Submerged Range: 100nm@5 knots

This post has been edited 3 times, last edit by "TexanCowboy" (Dec 3rd 2010, 3:44am)

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