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1

Thursday, March 2nd 2006, 10:40am

1930 Salamis rebuild

A rebuild for the two Greek Battleships.

1930 confuguration (1920 below)

RHN B-2 Salamis, Greece Battleship laid down 1915 (Engine 1930)

Displacement:
28,625 t light; 30,747 t standard; 31,771 t normal; 32,590 t full load

Dimensions: Length overall / water x beam x draught
662.19 ft / 660.00 ft x 97.00 ft (Bulges 104.00 ft) x 27.00 ft (normal load)
201.83 m / 201.17 m x 29.57 m (Bulges 31.70 m) x 8.23 m

Armament:
10 - 14.00" / 356 mm guns (4 mounts), 1,372.00lbs / 622.33kg shells, 1915 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 5.00" / 127 mm guns (6x2 guns), 62.50lbs / 28.35kg shells, 1930 Model
Breech loading guns in turrets (on barbettes)
on side, all amidships, 2 raised mounts - superfiring
6 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1915 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 14,664 lbs / 6,651 kg
Shells per gun, main battery: 180

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 410.00 ft / 124.97 m 12.30 ft / 3.75 m
Ends: Unarmoured
Main Belt covers 96 % of normal length

- Torpedo Bulkhead and Bulges:
1.50" / 38 mm 525.00 ft / 160.02 m 22.00 ft / 6.71 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 18.0" / 457 mm 12.0" / 305 mm 12.0" / 305 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm

- Armour deck: 3.50" / 89 mm, Conning tower: 12.00" / 305 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93,561 shp / 69,797 Kw = 27.00 kts
Range 5,800nm at 12.00 kts (Bunkerage = 1,843 tons)

Complement:
1,189 - 1,546

Cost:
£4.274 million / $17.097 million

Distribution of weights at normal displacement:
Armament: 1,833 tons, 5.8 %
Armour: 10,617 tons, 33.4 %
- Belts: 2,657 tons, 8.4 %
- Torpedo bulkhead: 641 tons, 2.0 %
- Armament: 4,028 tons, 12.7 %
- Armour Deck: 3,032 tons, 9.5 %
- Conning Tower: 259 tons, 0.8 %
Machinery: 2,835 tons, 8.9 %
Hull, fittings & equipment: 13,340 tons, 42.0 %
Fuel, ammunition & stores: 3,146 tons, 9.9 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
34,009 lbs / 15,426 Kg = 24.8 x 14.0 " / 356 mm shells or 4.8 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 5.7 ft / 1.7 m
Roll period: 18.3 seconds
Steadiness - As gun platform (Average = 50 %): 49 %
- Recoil effect (Restricted arc if above 1.00): 0.58
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 6.35 : 1
'Natural speed' for length: 25.69 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 48
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (20 %): 23.50 ft / 7.16 m
- Mid (50 %): 22.00 ft / 6.71 m
- Quarterdeck (15 %): 21.00 ft / 6.40 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 22.25 ft / 6.78 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.3 %
- Above water (accommodation/working, high = better): 165.6 %
Waterplane Area: 46,823 Square feet or 4,350 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 202 lbs/sq ft or 988 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.39
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

-----


RHN B-2 Salamis, Greece Battleship laid down 1915

Displacement:
28,321 t light; 30,473 t standard; 31,771 t normal; 32,809 t full load

Dimensions: Length overall / water x beam x draught
662.19 ft / 660.00 ft x 97.00 ft (Bulges 104.00 ft) x 27.00 ft (normal load)
201.83 m / 201.17 m x 29.57 m (Bulges 31.70 m) x 8.23 m

Armament:
10 - 14.00" / 356 mm guns (4 mounts), 1,372.00lbs / 622.33kg shells, 1915 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1915 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
6 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1915 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
4 - 1.00" / 25.4 mm guns in single mounts, 0.50lbs / 0.23kg shells, 1915 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 14,914 lbs / 6,765 kg
Shells per gun, main battery: 180

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 410.00 ft / 124.97 m 12.30 ft / 3.75 m
Ends: Unarmoured
Main Belt covers 96 % of normal length

- Torpedo Bulkhead and Bulges:
1.50" / 38 mm 525.00 ft / 160.02 m 22.00 ft / 6.71 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 18.0" / 457 mm 12.0" / 305 mm 12.0" / 305 mm
2nd: 2.00" / 51 mm - -

- Armour deck: 3.50" / 89 mm, Conning tower: 12.00" / 305 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 4 shafts, 66,736 shp / 49,785 Kw = 24.78 kts
Range 4,500nm at 12.00 kts (Bunkerage = 2,336 tons)

Complement:
1,189 - 1,546

Cost:
£4.272 million / $17.088 million

Distribution of weights at normal displacement:
Armament: 1,864 tons, 5.9 %
Armour: 10,528 tons, 33.1 %
- Belts: 2,657 tons, 8.4 %
- Torpedo bulkhead: 641 tons, 2.0 %
- Armament: 3,939 tons, 12.4 %
- Armour Deck: 3,032 tons, 9.5 %
- Conning Tower: 259 tons, 0.8 %
Machinery: 2,713 tons, 8.5 %
Hull, fittings & equipment: 13,216 tons, 41.6 %
Fuel, ammunition & stores: 3,450 tons, 10.9 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
34,418 lbs / 15,612 Kg = 25.1 x 14.0 " / 356 mm shells or 4.9 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 5.8 ft / 1.8 m
Roll period: 18.1 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0.62
Seaboat quality (Average = 1.00): 1.25

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 6.35 : 1
'Natural speed' for length: 25.69 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 48
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (20 %): 23.50 ft / 7.16 m
- Mid (50 %): 22.00 ft / 6.71 m
- Quarterdeck (15 %): 21.00 ft / 6.40 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 22.25 ft / 6.78 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 93.7 %
- Above water (accommodation/working, high = better): 165.6 %
Waterplane Area: 46,823 Square feet or 4,350 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 200 lbs/sq ft or 979 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.39
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily

Enter percentage of bunker tonnage devoted to coal fired boilers




Cheers,

2

Thursday, March 2nd 2006, 11:40am



Strange as I was planning a nice refit for Cristoforto Columbo in 1930 as well. Not quite as large scale, just replacing fire control systems, removing casemated guns and putting in new AA weapons.

Why 180shells per main gun? Doesn't this just givesomeone a larger chance of hitting your magazine for no real gain?

3

Thursday, March 2nd 2006, 7:51pm

Quoted

Why 180shells per main gun? Doesn't this just givesomeone a larger chance of hitting your magazine for no real gain?

He probably wants to match the explosiveness of the Filipino ships.
:-)

4

Thursday, March 2nd 2006, 8:00pm

Personally I'd rather beef up her AA guns at the expence of some of those 180 main gun rounds.

5

Friday, March 3rd 2006, 2:10am

I'd updated the design by resimming from SS1 to SS2. I went for the nearest fit, that's why the magazines are rather large. I'll cut it down and put the additional weight into misc.

Cheers,