Loire Class Corvette, laid down 1916
Length, 58.0 m x Beam, 7.0 m x Depth, 2.2 m 450 tonnes normal displacement
(406 tonnes standard)
Main battery: 1 x 10.0-cm Secondary battery: 2 x 7.5-cm AA battery: 2 x 3.7-cm Light
battery: 2 x 1.3-cm
Weight of broadside: 27 kg
2 TT, 45.0 cm
30 tons depth charges/mines
Hull
unarmored
Maximum speed for 5964 shaft kw = 25.00 knots Approximate cruising radius, 3000 nm / 10 knots
Typical
complement: 49-64
Estimated cost, $324,000 (£81,000)
Remarks:
Caution: Hull structure is subject
to strain in open-sea conditions.
Ship has slow, easy roll; a good, steady gun platform.
Good seaboat;
rides out heavy weather easily.
Magazines and engineering spaces are cramped, with poor watertight subdivision.
Distribution of weights: Percent normal displacement:
Armament ......................... 7
tonnes = 2 pct Machinery ........................ 210 tonnes = 47 pct Hull and fittings; equipment ..... 145 tonnes
= 32 pct Fuel, ammunition, stores ......... 58 tonnes = 13 pct Miscellaneous weights ............ 30 tonnes = 7 pct
----- 450 tonnes = 100 pct
Estimated metacentric height, 0.2 m
Displacement summary:
Light
ship: 393 tonnes Standard displacement: 406 tonnes Normal service: 450 tonnes Full load: 483 tonnes
Loading
submergence 257 tonnes/metre
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Estimated overall survivability and seakeeping
ability:
Relative margin of stability: 1.13
Shellfire needed to sink: 81 kg = 5.8 x 10.0-cm shells (Approximates
weight of penetrating shell hits needed to sink ship, not counting critical hits)
Torpedoes needed to sink:
0.2 (Approximates number of 'typical' torpedo hits needed to sink ship)
Relative steadiness as gun platform,
70 percent (50 percent is 'average')
Relative rocking effect from firing to beam, 0.27
Relative quality
as a seaboat: 1.21
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Hull form characteristics:
Block coefficient: 0.50
Sharpness coefficient: 0.35 Hull speed coefficient 'M' = 7.58 'Natural speed' for length = 13.8 knots Power
going to wave formation at top speed: 72 percent
Estimated hull characteristics and strength:
Relative
underwater volume absorbed by magazines and engineering spaces: 171 percent
Relative accommodation and working
space: 105 percent
Displacement factor: 60 percent (Displacement relative to loading factors)
Relative
cross-sectional hull strength: 0.58 (Structure weight per square metre of hull surface: 132 kg)
Relative longitudinal
hull strength: 2.84 (for 3.85 m average freeboard; freeboard adjustment +1.37 m)
Relative composite hull strength:
0.68
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[Machine-readable parameters: Spring Style v. 1.2.1]
190.24 x 22.96
x 7.22; 12.63 -- Dimensions 0.50 -- Block coefficient 1916 -- Year laid down 25.00 / 3000 / 10.00; Turbine, coal
fired -- Speed / radius / cruise 30 tons -- Miscellaneous weights ++++++++++ 1 x 3.94; 0 -- Main battery; turrets
Central positioning of guns : 2 x 2.95; 0 -- Secondary battery; turrets : 2 x 1.46 -- Tertiary (QF/AA)
battery : 2 x 0.51 -- Fourth (light) battery 2 / 0 / 17.72 -- TT / submerged / size ++++++++++ 0.00 --
No belt armor 0.00 / 0.00 -- Deck / CT 0.00 -- No battery armor
(Note: For portability, values are stored
in Anglo-American units)
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