Designed as fast escorts for the new CV's planned for the early 1930's (Yorktown & Enterprise). The quad 14" turrets can be replaced at a later date with triple 16" turrets. The design is modified from the so-called "Chesapeake" design from 1933.
USS Intrepid, United States Battlecruiser laid down 1933
Displacement:
36,046 t light; 37,979 t standard; 40,788 t normal; 43,035 t full load
Dimensions: Length overall / water x beam x draught
771.95 ft / 760.00 ft x 90.00 ft (Bulges 100.00 ft) x 32.00 ft (normal load)
235.29 m / 231.65 m x 27.43 m (Bulges 30.48 m) x 9.75 m
Armament:
12 - 14.00" / 356 mm guns (3x4 guns), 1,575.00lbs / 714.41kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority aft
16 - 5.00" / 127 mm guns (8x2 guns), 62.50lbs / 28.35kg shells, 1933 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
16 - 1.10" / 27.9 mm guns (4x4 guns), 0.67lbs / 0.30kg shells, 1933 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 19,911 lbs / 9,031 kg
Shells per gun, main battery: 100
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12.0" / 305 mm 536.00 ft / 163.37 m 11.38 ft / 3.47 m
Ends: Unarmoured
Main Belt covers 109 % of normal length
- Torpedo Bulkhead and Bulges:
2.50" / 64 mm 536.00 ft / 163.37 m 30.04 ft / 9.16 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 14.0" / 356 mm 7.00" / 178 mm 12.0" / 305 mm
2nd: 1.00" / 25 mm 1.00" / 25 mm 1.00" / 25 mm
- Armour deck: 5.00" / 127 mm, Conning tower: 12.00" / 305 mm
Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 168,426 shp / 125,646 Kw = 32.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 5,056 tons
Complement:
1,434 - 1,865
Cost:
£17.886 million / $71.542 million
Distribution of weights at normal displacement:
Armament: 2,184 tons, 5.4 %
Armour: 12,325 tons, 30.2 %
- Belts: 3,064 tons, 7.5 %
- Torpedo bulkhead: 1,489 tons, 3.7 %
- Armament: 2,703 tons, 6.6 %
- Armour Deck: 4,763 tons, 11.7 %
- Conning Tower: 306 tons, 0.8 %
Machinery: 4,908 tons, 12.0 %
Hull, fittings & equipment: 15,929 tons, 39.1 %
Fuel, ammunition & stores: 4,742 tons, 11.6 %
Miscellaneous weights: 700 tons, 1.7 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
48,689 lbs / 22,085 Kg = 35.5 x 14.0 " / 356 mm shells or 7.0 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 4.8 ft / 1.5 m
Roll period: 19.2 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.92
Seaboat quality (Average = 1.00): 1.03
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.587
Length to Beam Ratio: 7.60 : 1
'Natural speed' for length: 31.85 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 13.00 degrees
Stern overhang: 5.25 ft / 1.60 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (21 %): 25.00 ft / 7.62 m
- Mid (50 %): 25.00 ft / 7.62 m
- Quarterdeck (17 %): 25.00 ft / 7.62 m
- Stern: 25.00 ft / 7.62 m
- Average freeboard: 25.34 ft / 7.72 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 105.1 %
- Above water (accommodation/working, high = better): 171.0 %
Waterplane Area: 51,494 Square feet or 4,784 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 203 lbs/sq ft or 990 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.51
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent