Lilya Class Corvette, laid down 1920
Length, 65.0 m x Beam, 6.5 m x Depth, 2.6 m
443 tonnes normal displacement (384 tonnes standard)
Main battery: 2 x 10.0-cm
Secondary
battery: 4 x 3.7-cm
Light battery: 4 x 1.3-cm
Weight of broadside: 31 kg
4 TT, 53.0 cm
25 tons depth charges/mines
Hull unarmored
Maximum speed for 8114 shaft kw = 28.00 knots
Approximate cruising radius, 4300 nm / 12 knots
Typical complement: 48-63
Estimated cost, $472,000 (£118,000)
Remarks:
Caution: Hull structure is subject to strain in open-sea
conditions.
Caution: Very cramped ship with excessively poor habitability;
lacks suitable working space.
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 .........................
8 tonnes = 2 pct
Machinery ........................
214 tonnes = 48 pct
Hull and fittings; equipment .....
123 tonnes = 28 pct
Fuel, ammunition, stores .........
73 tonnes = 17 pct
Miscellaneous weights ............
25 tonnes = 6 pct
-----
443 tonnes = 100 pct
Estimated metacentric height, 0.2 m
Displacement summary:
Light ship:
370 tonnes
Standard displacement: 384 tonnes
Normal service:
443 tonnes
Full load:
488 tonnes
Loading submergence 231 tonnes/metre
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Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.08
Shellfire needed to sink: 51 kg = 3.7 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, 71 percent
(50 percent is 'average')
Relative rocking effect from firing to beam, 0.37
Relative quality as a seaboat: 1.22
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Hull form characteristics:
Block coefficient: 0.40
Sharpness coefficient: 0.30
Hull speed coefficient 'M' = 8.54
'Natural speed' for length = 14.6 knots
Power going to wave formation
at top speed: 69 percent
Estimated hull characteristics and strength:
Relative underwater volume absorbed by
magazines and engineering spaces: 176 percent
Relative accommodation and working space: 45 percent
Displacement factor: 52 percent
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.46
(Structure weight per square
metre
of hull surface: 109 kg)
Relative longitudinal hull strength: 2.00
(for 3.55 m average freeboard;
freeboard
adjustment +1.07 m)
Relative composite hull strength: 0.53
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[Machine-readable parameters: Spring Style v. 1.2.1]
213.20 x 21.32 x 8.53; 11.64 -- Dimensions
0.40 -- Block coefficient
1920 -- Year laid down
28.00 / 4300
/ 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
25 tons -- Miscellaneous weights
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2
x 3.94; 0 -- Main battery; turrets
Central positioning of guns
:
4 x 1.46; 0 -- Secondary
battery; turrets
:
0 -- No tertiary (QF/AA) battery
4 x 0.51 -- Fourth (light) battery
4 / 0
/ 20.87 -- TT / submerged / size
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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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