[SIZE=3]T-19 Class[/SIZE]
T-19, laid down 1925, scrapped 1944
T-19, laid down 1925
Length, 86.0 m x Beam, 7.2 m x Depth, 2.7 m
691 tonnes normal displacement (630 tonnes standard)
Main battery: 2 x 10.5-cm
Secondary battery: 2 x 3.5-cm
AA battery: 2 x 1.5-cm
Weight of broadside: 33 kg
4 TT, 50.0 cm
Hull unarmored
Battery armor:
Main, 4.0 cm shields / secondary, 2.0 cm shields
AA, 2.0 cm shields
Maximum speed for 16005 shaft kw = 32.09 knots
Approximate cruising radius, 3600 nm / 12 knots
Typical complement: 67-88
Estimated cost, $1.042 million (£260,000)
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 ......................... 9 tonnes = 1 pct
Armor, total ..................... 5 tonnes = 1 pct
Armament 5 tonnes = 1 pct
Machinery ........................ 361 tonnes = 52 pct
Hull and fittings; equipment ..... 225 tonnes = 33 pct
Fuel, ammunition, stores ......... 81 tonnes = 12 pct
Miscellaneous weights ............ 10 tonnes = 1 pct
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691 tonnes = 100 pct
Estimated metacentric height, 0.3 m
Displacement summary:
Light ship: 610 tonnes
Standard displacement: 630 tonnes
Normal service: 691 tonnes
Full load: 737 tonnes
Loading submergence 344 tonnes/metre
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Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.22
Shellfire needed to sink: 93 kg = 5.8 x 10.5-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, 0.27
Relative quality as a seaboat: 1.39
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Hull form characteristics:
Block coefficient: 0.41
Sharpness coefficient: 0.28
Hull speed coefficient 'M' = 9.75
'Natural speed' for length = 16.8 knots
Power going to wave formation
at top speed: 68 percent
Estimated hull characteristics and strength:
Relative underwater volume absorbed by
magazines and engineering spaces: 180 percent
Relative accommodation and working space: 91 percent
Displacement factor: 47 percent
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.50
(Structure weight per square
metre of hull surface: 134 kg)
Relative longitudinal hull strength: 1.69
(for 4.20 m average freeboard;
freeboard adjustment +1.49 m)
Relative composite hull strength: 0.56
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[Machine-readable parameters: Spring Style v. 1.2.1]
282.08 x 23.62 x 8.86; 13.78 -- Dimensions
0.41 -- Block coefficient
1925 -- Year laid down
32.09 / 3600 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
10 tons -- Miscellaneous weights
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2 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
2 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
2 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
4 / 0 / 19.69 -- TT / submerged / size
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0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.57 / 0.79 / 0.79 / 0.00 -- Battery armor
(Note: For portability, values are stored in Anglo-American units)
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