Hood, Great Britain Battlecruiser laid down 1916 (Engine 1936)
Displacement:
39,817 t light; 42,083 t standard; 44,893 t normal; 47,142 t full load
Dimensions: Length overall / water x beam x draught
860.90 ft / 850.50 ft x 95.00 ft (Bulges 104.20 ft) x 30.00 ft (normal load)
262.40 m / 259.23 m x 28.96 m (Bulges 31.76 m) x 9.14 m
Armament:
8 - 15.00" / 381 mm guns (4x2 guns), 1,938.00lbs / 879.06kg shells, 1912 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 4.50" / 114 mm guns (6x2 guns), 45.00lbs / 20.41kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on side, all aft
16 - 2.24" / 57.0 mm guns (8x2 guns), 6.00lbs / 2.72kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
32 - 1.57" / 40.0 mm guns (4x8 guns), 2.00lbs / 0.91kg shells, 1922 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
36 - 0.66" / 16.8 mm guns (6x6 guns), 0.14lbs / 0.06kg shells, 1935 Model
Machine guns in deck mounts
on side ends, evenly spread, all raised mounts - superfiring
Weight of broadside 16,209 lbs / 7,352 kg
Shells per gun, main battery: 150
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 562.00 ft / 171.30 m 9.50 ft / 2.90 m
Ends: Unarmoured
Upper: 6.00" / 152 mm 562.00 ft / 171.30 m 7.00 ft / 2.13 m
Main Belt covers 102 % of normal length
- Torpedo Bulkhead and Bulges:
3.00" / 76 mm 562.00 ft / 171.30 m 28.00 ft / 8.53 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15.0" / 381 mm 11.0" / 279 mm 12.0" / 305 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 2.00" / 51 mm
3rd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -
5th: 0.50" / 13 mm - -
- Armour deck: 4.50" / 114 mm, Conning tower: 9.00" / 229 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 175,000 shp / 130,550 Kw = 30.99 kts
Range 9,000nm at 15.00 kts
Bunker at max displacement = 5,058 tons
Complement:
1,541 - 2,004
Cost:
£5.846 million / $23.384 million
Distribution of weights at normal displacement:
Armament: 1,776 tons, 4.0 %
Armour: 14,546 tons, 32.4 %
- Belts: 3,691 tons, 8.2 %
- Torpedo bulkhead: 1,747 tons, 3.9 %
- Armament: 3,985 tons, 8.9 %
- Armour Deck: 4,878 tons, 10.9 %
- Conning Tower: 245 tons, 0.5 %
Machinery: 4,910 tons, 10.9 %
Hull, fittings & equipment: 18,435 tons, 41.1 %
Fuel, ammunition & stores: 5,076 tons, 11.3 %
Miscellaneous weights: 150 tons, 0.3 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
73,223 lbs / 33,213 Kg = 43.4 x 15.0 " / 381 mm shells or 11.6 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 5.4 ft / 1.7 m
Roll period: 18.8 seconds
Steadiness - As gun platform (Average = 50 %): 63 %
- Recoil effect (Restricted arc if above 1.00): 0.88
Seaboat quality (Average = 1.00): 1.27
Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0.591
Length to Beam Ratio: 8.16 : 1
'Natural speed' for length: 29.16 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 18.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.00 ft / 9.75 m
- Forecastle (20 %): 30.00 ft / 9.14 m
- Mid (50 %): 30.00 ft / 9.14 m
- Quarterdeck (30 %): 20.00 ft / 6.10 m (30.00 ft / 9.14 m before break)
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 27.16 ft / 8.28 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85.6 %
- Above water (accommodation/working, high = better): 217.3 %
Waterplane Area: 58,599 Square feet or 5,444 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 206 lbs/sq ft or 1,005 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.23
- 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
Refit Changes 1935:
Replacement of 5.5in guns with six twin 4.5in DP mounts
Eight twin 6pdr AA mounts fitted (two forward, two midships, two ahead X turret and two on the quarterdeck)
Four octuple 2pdr AA mounts fitted (two midships forward and two ahead X turret)
Six sextuple MG mounts fitted (four on superstructure and one on B and X turrets)
Two new directors and six new HACS fitted
Removal of end belts
Extra 1in on upper belt (now 6in)
Extra 0.5in torpedo bulkhead fitted inboard (now 2-2.5in)
Extra 1in added to main armour deck (now 2-4in plus 3in slope)
Extra 0.5in added to upper armour deck (now 1.25-2.5in)
New 9in conning tower
New boilers and turbines
Original Data:
HMS Hood, British Battlecruiser laid down 1916
Displacement:
38.980 t light; 41.125 t standard; 44.893 t normal; 47.729 t full load
Dimensions: Length overall / water x beam x draught
860,90 ft / 850,50 ft x 95,00 ft (Bulges 104,20 ft) x 30,00 ft (normal load)
262,40 m / 259,23 m x 28,96 m (Bulges 31,76 m) x 9,14 m
Armament:
8 - 15,00" / 381 mm guns (4x2 guns), 1.687,50lbs / 765,44kg shells, 1916 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 5,50" / 140 mm guns in single mounts, 83,19lbs / 37,73kg shells, 1916 Model
Breech loading guns in deck mounts
on side, all amidships, 2 raised mounts - superfiring
6 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 1,57" / 40,0 mm guns (4x4 guns), 1,95lbs / 0,88kg shells, 1916 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 14.721 lbs / 6.678 kg
Shells per gun, main battery: 150
4 - 21,0" / 533,4 mm above water torpedoes, 2 - 21,0" / 533,4 mm submerged torpedo tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12,0" / 305 mm 565,00 ft / 172,21 m 12,00 ft / 3,66 m
Ends: 4,00" / 102 mm 285,00 ft / 86,87 m 12,00 ft / 3,66 m
Upper: 5,00" / 127 mm 565,00 ft / 172,21 m 8,00 ft / 2,44 m
Main Belt covers 102 % of normal length
- Torpedo Bulkhead and Bulges:
2,50" / 64 mm 565,00 ft / 172,21 m 28,00 ft / 8,53 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15,0" / 381 mm 12,0" / 305 mm 8,00" / 203 mm
2nd: 2,00" / 51 mm - -
3rd: 2,00" / 51 mm - -
4th: 1,00" / 25 mm - -
- Armour deck: 3,00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 175.372 shp / 130.827 Kw = 31,00 kts
Range 9.075nm at 15,00 kts (Bunkerage = 6.783 tons)
Complement:
1.541 - 2.004
Cost:
£6,259 million / $25,035 million
Distribution of weights at normal displacement:
Armament: 1.840 tons, 4,1 %
Armour: 12.718 tons, 28,3 %
- Belts: 4.879 tons, 10,9 %
- Torpedo bulkhead: 1.463 tons, 3,3 %
- Armament: 3.199 tons, 7,1 %
- Armour Deck: 3.176 tons, 7,1 %
- Conning Tower: 0 tons, 0,0 %
Machinery: 6.534 tons, 14,6 %
Hull, fittings & equipment: 17.788 tons, 39,6 %
Fuel, ammunition & stores: 5.914 tons, 13,2 %
Miscellaneous weights: 100 tons, 0,2 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
48.520 lbs / 22.008 Kg = 28,8 x 15,0 " / 381 mm shells or 5,8 torpedoes
Stability (Unstable if below 1.00): 1,15
Metacentric height 6,9 ft / 2,1 m
Steadiness - As gun platform (Average = 50 %): 62 %
- Recoil effect (Restricted arc if above 1.00): 0,74
Seaboat quality (Average = 1.00): 1,25
Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0,591
Length to Beam Ratio: 8,16 : 1
'Natural speed' for length: 29,16 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 18,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32,00 ft / 9,75 m
- Forecastle (20 %): 30,00 ft / 9,14 m
- Mid (50 %): 30,00 ft / 9,14 m
- Quarterdeck (30 %): 20,00 ft / 6,10 m (30,00 ft / 9,14 m before break)
- Stern: 20,00 ft / 6,10 m
- Average freeboard: 27,16 ft / 8,28 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101,9 %
- Above water (accommodation/working, high = better): 205,0 %
Waterplane Area: 57.233 Square feet or 5.317 Square metres
Displacement factor (Displacement / loading): 111 %
Structure weight / hull surface area: 200 lbs/sq ft or 977 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,99
- Longitudinal: 1,15
- 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