WesWorld

Enter ship name, Iberia Collier laid down 1921

Displacement:
11,344 t light; 11,604 t standard; 12,486 t normal; 13,142 t full load
Loading submergence 761 tons/feet

Dimensions:
393.70 ft x 82.02 ft x 18.04 ft (normal load)
120.00 m x 25.00 m x 5.50 m

Armament:
4 - 3.94" / 100 mm guns
Weight of broadside 122 lbs / 55 kg

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Direct drive, 1 shaft, 9,065 ihp / 6,762 Kw = 16.00 kts
Range 8,000nm at 11.00 kts

Complement:
590 - 767

Cost:
£1.232 million / $4.929 million

Distribution of weights at normal displacement:
Armament: 15 tons, 0.1 %
Machinery: 530 tons, 4.2 %
Hull, fittings & equipment: 2,799 tons, 22.4 %
Fuel, ammunition & stores: 1,142 tons, 9.1 %
Miscellaneous weights: 8,000 tons, 64.1 %

Metacentric height 3.9

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.03
Shellfire needed to sink: 13,454 lbs / 6,102 Kg = 440.9 x 3.9 " / 100 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2.2
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 71 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.00
Relative quality as seaboat: 1.45

Hull form characteristics:
Block coefficient: 0.750
Sharpness coefficient: 0.52
Hull speed coefficient 'M': 5.19
'Natural speed' for length: 19.84 kts
Power going to wave formation at top speed: 44 %
Trim: 49
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 84.8 %
Relative accommodation and working space: 112.8 %
(Average = 100%)
Displacement factor: 136 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1.00
(Structure weight / hull surface area: 86 lbs / square foot or 418 Kg / square metre)
Relative longitudinal hull strength: 1.19
(for 13.12 ft / 4.00 m average freeboard, freeboard adjustment -2.71 ft)
Relative composite hull strength: 1.02

Well, actually, there´s little to comment. The ship looks like it should look like. *g*

Getting 8,000 tons miscellaneous weight onto a hull displacing 11,600 tons Standard, and getting it all going 16 kts and with good seakeeping, is an excellent piece of work.

Thanks :-)

hint: take a look at the BC ;->

Bernhard

Quoted

hint: take a look at the BC ;->

Yes. The oil tankers I intend for 1924 are similar brick-shaped objects.