WesWorld

Placeholder for potential KM designs for 1941

Netlayer Typ 1941 Rev A – German Netlayer/Harbour Defence Craft

Displacement: 455 t light; 466 t standard; 537 t normal; 594 t full load

Dimensions: Length overall / water x beam x draught

146.90 ft / 144.36 ft x 24.61 ft x 11.48 ft (normal load) [44.78 m / 44.00 m x 7.50 m x 3.50 m]

Armament:

1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft gun in deck mount on centreline forward
3 - 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
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 450

Armour:

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

Machinery:

Coal fired boilers, complex reciprocating steam engines, Direct drive, 1 shaft, 1,232 ihp / 919 Kw = 15.00 kts
Range 4,800nm at 10.00 kts
Bunker at max displacement = 127 tons (100% coal)

Complement: 55 - 72

Cost: £0.164 million / $0.657 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.1 %
Armour: 1 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 74 tons, 13.9 %
Hull, fittings & equipment: 260 tons, 48.3 %
Fuel, ammunition & stores: 82 tons, 15.3 %
Miscellaneous weights: 120 tons, 22.3 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 759 lbs / 344 Kg = 491.3 x 1.5 " / 37 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 0.6 ft / 0.2 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 57 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.54

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.461
Length to Beam Ratio: 5.87 : 1
'Natural speed' for length: 12.01 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 37
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: 14.44 ft / 4.40 m
- Forecastle (20 %): 9.51 ft / 2.90 m
- Mid (50 %): 8.53 ft / 2.60 m
- Quarterdeck (15 %): 8.53 ft / 2.60 m
- Stern: 8.53 ft / 2.60 m
- Average freeboard: 9.27 ft / 2.83 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 70.6 %
- Above water (accommodation/working, high = better): 66.2 %
Waterplane Area: 2,183 Square feet or 203 Square metres
Displacement factor (Displacement / loading): 198 %
Structure weight / hull surface area: 60 lbs/sq ft or 294 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.58
- Longitudinal: 9.50
- Overall: 1.89
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

Breakdown of Miscellaneous Weight:

110 tons for netlaying equipment
10 tons reserved for design growth or war modification

Based upon feedback, a design revision to correct working arrangements and revise antiaircraft armament.
---------

Netlayer Typ 1941 Rev B – German Netlayer/Harbour Defence Craft

Displacement: 455 t light; 466 t standard; 537 t normal; 594 t full load

Dimensions: Length overall / water x beam x draught

146.90 ft / 144.36 ft x 24.61 ft x 11.48 ft (normal load) [44.78 m / 44.00 m x 7.50 m x 3.50 m]

Armament:

1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft gun in deck mount on centreline aft
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1928 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 450

Armour:

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

Machinery:

Coal fired boilers, complex reciprocating steam engines, Direct drive, 1 shaft, 1,232 ihp / 919 Kw = 15.00 kts
Range 4,800nm at 10.00 kts
Bunker at max displacement = 127 tons (100% coal)

Complement: 55 - 72

Cost: £0.164 million / $0.657 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Armour: 0 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 74 tons, 13.9 %
Hull, fittings & equipment: 260 tons, 48.4 %
Fuel, ammunition & stores: 82 tons, 15.3 %
Miscellaneous weights: 120 tons, 22.3 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 760 lbs / 345 Kg = 491.5 x 1.5 " / 37 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 0.6 ft / 0.2 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 57 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.54

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.461
Length to Beam Ratio: 5.87 : 1
'Natural speed' for length: 12.01 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 37
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: 14.44 ft / 4.40 m
- Forecastle (20 %): 9.51 ft / 2.90 m
- Mid (50 %): 8.53 ft / 2.60 m
- Quarterdeck (15 %): 8.53 ft / 2.60 m
- Stern: 8.53 ft / 2.60 m
- Average freeboard: 9.27 ft / 2.83 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 70.5 %
- Above water (accommodation/working, high = better): 66.2 %
Waterplane Area: 2,183 Square feet or 203 Square metres
Displacement factor (Displacement / loading): 198 %
Structure weight / hull surface area: 60 lbs/sq ft or 294 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.58
- Longitudinal: 9.51
- Overall: 1.89
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

Breakdown of Miscellaneous Weight:

110 tons for netlaying equipment
10 tons reserved for design growth or war modification

Fleet Tug Typ 1941 Fleet Tug Rev A – German Fleet Tug

Displacement: 656 t light; 674 t standard; 850 t normal; 991 t full load

Dimensions: Length overall / water x beam x draught

138.10 ft / 135.50 ft x 29.00 ft x 12.01 ft (normal load) [42.09 m / 41.30 m x 8.84 m x 3.66 m]

Armament:

1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft gun in deck mount on centreline forward, 1 raised gun
2 - 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
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 450

Armour:

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

Machinery:

Oil fired boilers, complex reciprocating steam engines, Geared drive, 1 shaft, 751 ihp / 560 Kw = 12.00 kts
Range 12,000nm at 10.00 kts
Bunker at max displacement = 317 tons

Complement: 78 - 102

Cost: £0.179 million / $0.716 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Armour: 0 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 41 tons, 4.9 %
Hull, fittings & equipment: 514 tons, 60.5 %
Fuel, ammunition & stores: 194 tons, 22.8 %
Miscellaneous weights: 100 tons, 11.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 2,858 lbs / 1,297 Kg = 1,849.5 x 1.5 " / 37 mm shells or 2.2 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.84

Hull form characteristics:

Hull has raised quarterdeck
Block coefficient: 0.630
Length to Beam Ratio: 4.67: 1
'Natural speed' for length: 11.64 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 38
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: 14.76 ft / 4.50 m
- Forecastle (20 %): 14.76 ft / 4.50 m
- Mid (50 %): 8.20 ft / 2.50 m
- Quarterdeck (15 %): 9.02 ft / 2.75 m (8.20 ft / 2.50 m before break)
- Stern: 9.02 ft / 2.75 m
- Average freeboard: 10.62 ft / 3.24 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 30.4 %
- Above water (accommodation/working, high = better): 69.0 %
Waterplane Area: 2,906 Square feet or 270 Square metres
Displacement factor (Displacement / loading): 459 %
Structure weight / hull surface area: 102 lbs/sq ft or 497 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.41
- Longitudinal: 15.70
- Overall: 2.90
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of miscellaneous weight

40 tons for salvage crane and associated equipment
30 tons for towing gear
20 tons for high pressure pumps and fire-fighting equipment
10 tons for diving bell and submarine rescue equipment

What are you planning on tugging with this? If it's anything larger then a Hipper class cruiser, you might need more hp....

Quoted

Originally posted by TexanCowboy
What are you planning on tugging with this? If it's anything larger then a Hipper class cruiser, you might need more hp....

You'd need more tugs.

As Brock mentioned, to tow a very large vessel you might need more than one tug. You would also be towing at a very slow speed, perhaps only two or three knots.

But if you can point me towards a reference for the optimum tug HP for a given displacement of the towed vessel, I'd appreciate it.

I do know that 3,620 hp is needed to handle todays modern carriers, such as the USS Nimitz, or thereabouts, for harbor use.

http://www.professionalmariner.com/ME2/d…C85FFAB9F9F0530

Considering that Germany has those mega-battleships under construction, and also has the Bismarck class, I'd think that somewhere in the range of 2,000 hp would be a good idea.

If I understand correctly, tugs are limited more by the function of bollard pull rating as they are limited by SHP. A single tug is not going to be an effective unit for moving a Sachsen: two or three are preferable for more reasons than HP.

Interesting reference; thank you.

Unfortunately, since Springsharp doesn't allow me to pack extra horsepower into a hull of a given size but factors hull size, speed and HP into one set of calculations, I do not believe I can just throw more HP into the design. Limitation of Wesworld versus real world I suppose.

Fleet Tug Typ 1941 Fleet Tug Rev B – German Fleet Tug

Displacement: 684 t light; 702 t standard; 849 t normal; 967 t full load

Dimensions: Length overall / water x beam x draught

138.10 ft / 135.50 ft x 29.00 ft x 12.01 ft (normal load) [42.09 m / 41.30 m x 8.84 m x 3.66 m]

Armament:

1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft gun in deck mount on centreline forward, 1 raised gun
2 - 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
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 450

Armour:

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

Machinery:

Oil fired boilers, complex reciprocating steam engines, Geared drive, 1 shaft, 1,424 ihp / 1,062 Kw = 14.00 kts
Range 10,000nm at 10.00 kts
Bunker at max displacement = 265 tons

Complement: 78 - 102

Cost: £0.217 million / $0.868 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Armour: 0 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 78 tons, 9.2 %
Hull, fittings & equipment: 505 tons, 59.5 %
Fuel, ammunition & stores: 165 tons, 19.4 %
Miscellaneous weights: 100 tons, 11.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 1,964 lbs / 891 Kg = 1,270.8 x 1.5 " / 37 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.5 seconds
Steadiness - As gun platform (Average = 50 %): 47 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.15

Hull form characteristics:

Hull has raised quarterdeck
Block coefficient: 0.630
Length to Beam Ratio: 4.67 : 1
'Natural speed' for length: 11.64 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 38
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: 14.76 ft / 4.50 m
- Forecastle (20 %): 14.76 ft / 4.50 m
- Mid (50 %): 8.20 ft / 2.50 m
- Quarterdeck (15 %): 9.02 ft / 2.75 m (8.20 ft / 2.50 m before break)
- Stern: 9.02 ft / 2.75 m
- Average freeboard: 10.62 ft / 3.24 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 44.3 %
- Above water (accommodation/working, high = better): 68.9 %
Waterplane Area: 2,905 Square feet or 270 Square metres
Displacement factor (Displacement / loading): 328 %
Structure weight / hull surface area: 100 lbs/sq ft or 489 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.35
- Longitudinal: 15.44
- Overall: 2.84
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped

Breakdown of miscellaneous weight

40 tons for salvage crane and associated equipment
30 tons for towing gear
20 tons for high pressure pumps and fire-fighting equipment
10 tons for diving bell and submarine rescue equipment

Survey Ship Typ 1941 Rev A German Survey Ship

Displacement: 593 t light; 618 t standard; 850 t normal; 1,036 t full load

Dimensions: Length overall / water x beam x draught

253.37 ft / 242.13 ft x 28.22 ft x 10.50 ft (normal load) [77.23 m / 73.80 m x 8.60 m x 3.20 m]

Armament:

2 - 3.46" / 88.0 mm guns (1x2 guns), 20.79lbs / 9.43kg shells, 1935 Model Anti-aircraft guns in deck mount on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft guns in deck mount on centreline aft, all raised guns – superfiring
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1928 Model Anti-aircraft guns in deck mounts on side, evenly spread, 2 raised mounts
Weight of broadside 46 lbs / 21 kg
Shells per gun, main battery: 300

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 3,911 shp / 2,918 Kw = 20.00 kts
Range 8,500nm at 15.00 kts
Bunker at max displacement = 418 tons

Complement: 78 - 102

Cost: £0.247 million / $0.990 million

Distribution of weights at normal displacement:

Armament: 6 tons, 0.7 %
Armour: 3 tons, 0.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 103 tons, 12.2 %
Hull, fittings & equipment: 351 tons, 41.2 %
Fuel, ammunition & stores: 257 tons, 30.3 %
Miscellaneous weights: 130 tons, 15.3 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 2,011 lbs / 912 Kg = 96.7 x 3.5 " / 88 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.9 ft / 0.3 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 80 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
Block coefficient: 0.415
Length to Beam Ratio: 8.58: 1
'Natural speed' for length: 15.56 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): 26.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19.69 ft / 6.00 m
- Forecastle (20 %): 18.70 ft / 5.70 m (18.04 ft / 5.50 m aft of break)
- Mid (40 %): 18.04 ft / 5.50 m (9.84 ft / 3.00 m aft of break)
- Quarterdeck (25 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 13.33 ft / 4.06 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 62.8 %
- Above water (accommodation/working, high = better): 132.9 %
Waterplane Area: 4,245 Square feet or 394 Square metres
Displacement factor (Displacement / loading): 220 %
Structure weight / hull surface area: 38 lbs/sq ft or 187 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 5.17
- 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

Breakdown of miscellaneous weight

60 tons reserved for survey/research crew quarters - @ 3 tons per person
40 tons reserved for additional deck handling gear - cranes, winches, sounding gear - and echo sounding equipment
30 tons reserved for installation of AS gear for wartime

Typ Mittenwalde, German Victualing Store Issuing

Displacement: 4,394 t light; 4,558 t standard; 7,503 t normal; 9,859 t full load

Dimensions: Length overall / water x beam x draught

372.29 ft / 357.61 ft x 50.20 ft x 21.33 ft (normal load) [113.47 m / 109.00 m x 15.30 m x 6.50 m]

Armament:

2 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1938 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
4 - 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
Weight of broadside 78 lbs / 35 kg
Shells per gun, main battery: 300

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 9,668 shp / 7,213 Kw = 18.00 kts
Range 29,400nm at 15.00 kts
Bunker at max displacement = 5,301 tons

Complement: 403 - 524

Cost: £1.222 million / $4.890 million

Distribution of weights at normal displacement:

Armament: 10 tons, 0.1 %
Armour: 5 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 256 tons, 3.4 %
Hull, fittings & equipment: 1,924 tons, 25.6 %
Fuel, ammunition & stores: 3,109 tons, 41.4 %
Miscellaneous weights: 2,200 tons, 29.3 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 19,687 lbs / 8,930 Kg = 557.4 x 4.1 " / 105 mm shells or 3.3 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 2.0 ft / 0.6 m
Roll period: 15.1 seconds
Steadiness - As gun platform (Average = 50 %): 68 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0.686
Length to Beam Ratio: 7.12 : 1
'Natural speed' for length: 18.91 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 34
Bow angle (Positive = bow angles forward): 22.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.22 ft / 8.60 m
- Forecastle (20 %): 27.56 ft / 8.40 m (26.90 ft / 8.20 m aft of break)
- Mid (50 %): 26.25 ft / 8.00 m
- Quarterdeck (25 %): 18.04 ft / 5.50 m
- Stern: 18.04 ft / 5.50 m
- Average freeboard: 23.58 ft / 7.19 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 45.3 %
- Above water (accommodation/working, high = better): 163.5 %
Waterplane Area: 14,085 Square feet or 1,309 Square metres
Displacement factor (Displacement / loading): 269 %
Structure weight / hull surface area: 68 lbs/sq ft or 333 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 5.07
- 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


Low-stowed cargo simmed as additional bunkers - Normal radius 15,000 nm @ 15 knots - 2,737 tons; remaining 2,562 tons represents dry and packaged stores for transfer

Breakdown of miscellaneous weight

Cranes, winches and deck gear for underway replenishment - 200 tons
Additional evaporators and fresh water stowage - 200 tons
Refrigerated storerooms for provisions - 1800 tons

Cost to outfit as a naval auxiliary - 1,099 tons.

Typ Coronel, German Advanced Base Ship

Displacement: 9,277 t light; 9,701 t standard; 19,901 t normal; 28,062 t full load

Dimensions: Length overall / water x beam x draught

532.25 ft / 515.09 ft x 65.62 ft x 27.89 ft (normal load) [162.23 m / 157.00 m x 20.00 m x 8.50 m]

Armament:

2 - 5.04" / 128 mm guns in single mounts, 63.99lbs / 29.03kg shells, 1940 Model Dual purpose guns in deck mounts with hoists on centreline ends, evenly spread
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, evenly spread
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1930 Model Antiaircraft guns in deck mounts on side, evenly spread, 2 raised mounts
Weight of broadside 142 lbs / 65 kg
Shells per gun, main battery: 300

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm 0.39" / 10 mm
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:

Diesel Internal combustion generators, Electric motors, 2 shafts, 15,948 shp / 11,897 Kw = 18.00 kts
Range 59,750nm at 15.00 kts
Bunker at max displacement = 18,361 tons

Complement: 837 - 1,089

Cost: £2.464 million / $9.857 million

Distribution of weights at normal displacement:

Armament: 18 tons, 0.1 %
Armour: 8 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 8 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 421 tons, 2.1 %
Hull, fittings & equipment: 4,330 tons, 21.8 %
Fuel, ammunition & stores: 10,624 tons, 53.4 %
Miscellaneous weights: 4,500 tons, 22.6 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 61,290 lbs / 27,800 Kg = 957.8 x 5.0 " / 128 mm shells or 6.8 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 3.2 ft / 1.0 m
Roll period: 15.4 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- 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: 0.739
Length to Beam Ratio: 7.85: 1
'Natural speed' for length: 22.70 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 4.92 ft / 1.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.25 ft / 8.00 m
- Forecastle (20 %): 24.93 ft / 7.60 m (24.28 ft / 7.40 m aft of break)
- Mid (50 %): 24.28 ft / 7.40 m
- Quarterdeck (22 %): 24.28 ft / 7.40 m
- Stern: 24.93 ft / 7.60 m
- Average freeboard: 24.59 ft / 7.49 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 33.7 %
- Above water (accommodation/working, high = better): 154.9 %
Waterplane Area: 28,038 Square feet or 2,605 Square metres
Displacement factor (Displacement / loading): 362 %
Structure weight / hull surface area: 92 lbs/sq ft or 447 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.15
- 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


Low-stowed cargo simmed as additional bunkers

Bunkers for 15,000 nm radius at 15 knots = 2635 tons; remainder 15,725 represents low-stowed cargo

Fuel oil - 3,000 tons; Diesel oil - 3,000 tons; Aviation petrol - 3,000 tons; Fresh water - 725 tons; Dry stores 6,000 tons. Total 15,725 tons

Breakdown of miscellaneous weight:

Repair and maintenance facilities - 1000 tons
Enhanced deck handling gear - 360 tons
Four Pioneer Landing Boats with Davits - 360 tons
Two Pioneer Motor Launches with Davits - 180 tons
Pontoon causeway equipment - 600 tons
Accommodations for base force personnel (300 @ 2-tons per) - 600 tons
Recreational space and base amenities - 400 tons
Refrigerated storerooms - 1000 tons

Cost to acquire and convert as naval auxiliary - 2319 tons

The last one is a very interesting development.

Ominous Hummmmmmmmmmmm

Typ 1941 German Minelayer Support Vessel

Displacement: 5,581 t light; 5,806 t standard; 10,900 t normal; 14,975 t full load

Dimensions: Length overall / water x beam x draught

418.27 ft / 406.82 ft x 55.12 ft x 24.28 ft (normal load) [127.49 m / 124.00 m x 16.80 m x 7.40 m]

Armament:

2 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1938 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread, 1 raised mount
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
4 - 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
Weight of broadside 78 lbs / 35 kg
Shells per gun, main battery: 150

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 7,494 shp / 5,590 Kw = 16.00 kts
Range 60,000nm at 13.00 kts
Bunker at max displacement = 9,169 tons

Complement: 533 - 693

Cost: £1.430 million / $5.718 million

Distribution of weights at normal displacement:

Armament: 10 tons, 0.1 %
Machinery: 198 tons, 1.8 %
Hull, fittings & equipment: 2,224 tons, 20.4 %
Fuel, ammunition & stores: 5,319 tons, 48.8 %
Miscellaneous weights: 3,150 tons, 28.9 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 26,664 lbs / 12,095 Kg = 754.9 x 4.1 " / 105 mm shells or 4.3 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 2.4 ft / 0.7 m
Roll period: 14.8 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.701
Length to Beam Ratio: 7.38: 1
'Natural speed' for length: 20.17 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 38
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.97 ft / 7.00 m
- Forecastle (20 %): 22.97 ft / 7.00 m
- Mid (50 %): 16.40 ft / 5.00 m
- Quarterdeck (15 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 18.70 ft / 5.70 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 39.3 %
- Above water (accommodation/working, high = better): 114.4 %
Waterplane Area: 17,867 Square feet or 1,660 Square metres
Displacement factor (Displacement / loading): 301 %
Structure weight / hull surface area: 76 lbs/sq ft or 369 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.97
- Overall: 1.00
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather


Low stowed cargo simmed as additional bunkers.

Radius 15,000 nm at 13 knots = 2,366 tons; Fuel oil carried in deep tanks for transfer to other vessels = 3,806 tons; Dry stores and cargo = 3,000 tons. Total 9,169 tons

Breakdown of miscellaneous weight

Enhanced deck handling gear (cranes, winches etc) = 400 tons
Mine storage = 725 tons
Provision for nets, booms and buoys as cargo = 800 tons
Workshops and facilities = 500 tons
Accommodations and amenities for supported vessels = 800 tons

Cost to acquire and convert as naval auxiliary = 1395 tons

Displacement: 27,000 t light; 27,760 t standard; 30,636 t normal; 32,937 t full load

Dimensions: Length overall / water x beam x draught

825.56 ft / 803.81 ft x 82.02 ft (Bulges 93.50 ft) x 26.25 ft (normal load) [251.63 m / 245.00 m x 25.00 m (Bulges 28.50 m) x 8.00 m]

Armament:

16 - 5.04" / 128 mm guns (8x2 guns), 63.99lbs / 29.03kg shells, 1941 Model Dual purpose guns in deck mounts with hoists on side ends, evenly spread, all raised mounts - superfiring
24 - 1.46" / 37.0 mm guns (12x2 guns), 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
32 - 0.79" / 20.0 mm guns (8x4 guns), 0.24lbs / 0.11kg shells, 1941 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 1,069 lbs / 485 kg
Shells per gun, main battery: 240

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 3.94" / 100 mm 531.50 ft / 162.00 m 11.48 ft / 3.50 m
Ends: Unarmoured
Upper: 1.97" / 50 mm 531.50 ft / 162.00 m 16.40 ft / 5.00 m
Main Belt covers 102 % of normal length

Torpedo Bulkhead and Bulges: 1.57" / 40 mm 531.50 ft / 162.00 m 24.08 ft / 7.34 m

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.79" / 20 mm 1.97" / 50 mm
2nd: 0.79" / 20 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm 0.39" / 10 mm -

Armour deck: 2.76" / 70 mm, Conning tower: 6.69" / 170 mm

Machinery:

Oil fired boilers, steam turbines plus diesel motors, Electric motors, 4 shafts, 144,999 shp / 108,169 Kw = 32.50 kts
Range 13,000nm at 15.00 kts
Bunker at max displacement = 5,176 tons

Complement: 1,157 - 1,505

Cost: £9.852 million / $39.408 million

Distribution of weights at normal displacement:

Armament: 134 tons, 0.4 %
Armour: 5,117 tons, 16.7 %
- Belts: 1,716 tons, 5.6 %
- Torpedo bulkhead: 746 tons, 2.4 %
- Armament: 86 tons, 0.3 %
- Armour Deck: 2,427 tons, 7.9 %
- Conning Tower: 141 tons, 0.5 %
Machinery: 3,832 tons, 12.5 %
Hull, fittings & equipment: 9,718 tons, 31.7 %
Fuel, ammunition & stores: 3,636 tons, 11.9 %
Miscellaneous weights: 8,200 tons, 26.8 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 48,691 lbs / 22,086 Kg = 760.9 x 5.0 " / 128 mm shells or 6.8 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 4.5 ft / 1.4 m
Roll period: 18.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 1.51

Hull form characteristics:

Hull has a flush deck and transom stern
Block coefficient: 0.544
Length to Beam Ratio: 8.60: 1
'Natural speed' for length: 32.58 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31.99 ft / 9.75 m
- Forecastle (20 %): 27.89 ft / 8.50 m
- Mid (50 %): 27.89 ft / 8.50 m
- Quarterdeck (15 %): 27.89 ft / 8.50 m
- Stern: 27.89 ft / 8.50 m
- Average freeboard: 28.22 ft / 8.60 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 97.9 %
- Above water (accommodation/working, high = better): 218.6 %
Waterplane Area: 47,607 Square feet or 4,423 Square metres
Displacement factor (Displacement / loading): 139 %
Structure weight / hull surface area: 127 lbs/sq ft or 621 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.25
- Overall: 1.00
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

Breakdown of miscellaneous weight:

1041 tons for 30mm of deck armour over the hangar deck
6400 tons for space for 80 aircraft (48 fighters, 32 attack aircraft)
400 tons for 16 spare aircraft at 25 tons each
100 tons reserved for command spaces
50 tons reserved for electronics
209 tons reserved for future growth

(My thanks to Brockpaine for the sim, and his good explanation of the theory behind it)

What's the length of the beam at it's maximum?

Quoted

Originally posted by TexanCowboy
What's the length of the beam at it's maximum?

That's not calculated by Springsharp, as you already ought to know.