Shipbucket

Thanks for all the compliments. The saga of the Colorado continues with the Colorado as she appeared in 1936. The rigging have been completely remodeled, as has the oberservation posts on the masts. The small platform structure on the aft mast, about half way up, has beem removed. She has also recieved two directors for the secondary battery over the bridge. The two torpedo tubes have been removed.



USS Colorado, United States, Battleship, laid down 1919

Displacement:
30 388 t light; 32 023 t standard; 33 100 t normal; 33 962 t full load

Dimensions: Length overall / water x beam x draught
624,03 ft / 601,50 ft x 97,50 ft x 38,00 ft (normal load)
190,20 m / 183,34 m x 29,72 m x 11,58 m

Armament:
8 - 16,00" / 406 mm guns (4x2 guns), 2 048,00lbs / 928,96kg shells, 1919 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
Main guns limited to end-on fire
12 - 5,00" / 127 mm guns in single mounts, 62,50lbs / 28,35kg shells, 1919 Model
Breech loading guns in casemate mounts
on side, all amidships
2 - 5,00" / 127 mm guns in single mounts, 62,50lbs / 28,35kg shells, 1919 Model
Breech loading guns in deck mounts
on side, all forward
4 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1919 Model
Anti-aircraft guns in deck mounts
on side, all amidships
Weight of broadside 17 313 lbs / 7 853 kg
Shells per gun, main battery: 100
2 - 21,0" / 533,4 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 13,5" / 343 mm 410,50 ft / 125,12 m 17,50 ft / 5,33 m
Ends: Unarmoured
Main Belt covers 105 % of normal length

- Torpedo Bulkhead:
3,00" / 76 mm 410,50 ft / 125,12 m 12,50 ft / 3,81 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 18,0" / 457 mm 5,00" / 127 mm 13,0" / 330 mm

- Armour deck: 3,50" / 89 mm, Conning tower: 11,50" / 292 mm

Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 35 842 shp / 26 738 Kw = 21,00 kts
Range 8 000nm at 10,00 kts
Bunker at max displacement = 1 939 tons

Complement:
1 226 - 1 595

Cost:
£6,676 million / $26,702 million

Distribution of weights at normal displacement:
Armament: 2 164 tons, 6,5 %
Armour: 10 914 tons, 33,0 %
- Belts: 4 184 tons, 12,6 %
- Torpedo bulkhead: 570 tons, 1,7 %
- Armament: 3 328 tons, 10,1 %
- Armour Deck: 2 577 tons, 7,8 %
- Conning Tower: 255 tons, 0,8 %
Machinery: 1 273 tons, 3,8 %
Hull, fittings & equipment: 15 838 tons, 47,8 %
Fuel, ammunition & stores: 2 712 tons, 8,2 %
Miscellaneous weights: 200 tons, 0,6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
32 998 lbs / 14 968 Kg = 16,1 x 16,0 " / 406 mm shells or 4,6 torpedoes
Stability (Unstable if below 1.00): 0,93
Metacentric height 4,1 ft / 1,2 m
Roll period: 20,2 seconds
Steadiness - As gun platform (Average = 50 %): 74 %
- Recoil effect (Restricted arc if above 1.00): 1,14
Seaboat quality (Average = 1.00): 1,49

Hull form characteristics:
Hull has rise forward of midbreak, low quarterdeck
Block coefficient: 0,520
Length to Beam Ratio: 6,17 : 1
'Natural speed' for length: 24,53 kts
Power going to wave formation at top speed: 42 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 43,79 degrees
Stern overhang: -3,50 ft / -1,07 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23,50 ft / 7,16 m
- Forecastle (20 %): 23,50 ft / 7,16 m
- Mid (50 %): 23,50 ft / 7,16 m (15,00 ft / 4,57 m aft of break)
- Quarterdeck (15 %): 15,00 ft / 4,57 m (23,50 ft / 7,16 m before break)
- Stern: 15,50 ft / 4,72 m
- Average freeboard: 20,78 ft / 6,33 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 80,0 %
- Above water (accommodation/working, high = better): 131,1 %
Waterplane Area: 39 793 Square feet or 3 697 Square metres
Displacement factor (Displacement / loading): 107 %
Structure weight / hull surface area: 264 lbs/sq ft or 1 291 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,16
- Longitudinal: 2,90
- Overall: 1,27
Caution: Poor stability - excessive risk of capsizing
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
Good seaboat, rides out heavy weather easily

That's a great drawing Karle!

_________________

Jabba's Worklist

The Colorado underwent an overhaul in 1940, before being stationed permenately at Pearl, where she would be moored at Battleship Row on one fateful morning. Seen here in Measure 1.

Nice drawings.
Spotting tops remained light grey?

Yep. All surfaces above funnel tops are to be painted haze gray, everything below is to be painted dark gray. No exceptions.

Aaw, not even for me?
Seriously though, how come that was the RL rule?

Sorry bud, USN rules. I only know why ships used Measure 11, the Navy Blue 5-N color scheme. It was to camouflage them from planes, and it actually worked, ships painted in Measure 11 were attacked less, proven at Coral Sea and Midway.

Very nice work, my friend!

_________________

MS State Guard - 08 March 2014 - 28 January 2023

The Official IJN Ships & Planes List

#FJB

Uh, the Colorado wasn't at Pearl Harbor on December 7th, she had been sent to Puget Sound Navy Yard to be modernized in June of 41 and remained there until March of 42. She was the only Pacific fleet battleship not at Pearl that day.

_________________
Projects
US Navy auxiliaries
Canadian Pacific Steamships Empress of Britain (post war)
Cunard Line Ascania (final 1950s configuration)
Cunard Line RMS Aquitania

Sorry, my mistake.