Bucharskiy Class Destroyer, laid down 1904
Length, 72.5 m x Beam, 8.2 m x Depth, 2.3 m
620 tonnes normal displacement (560 tonnes standard)
Main battery: 2 x 10.0-cm
QF
battery: 1 x 3.7-cm
Light battery:
4 x 1.3-cm
Weight of broadside: 29 kg
4 TT, 45.0 cm, in one quadruple mount
10 tons depth charges/mines
Hull unarmored
Battery armor:
Main, 2.5 cm shields
QF, 2.5 cm shields
Maximum speed for 7249 indicated kw = 26.00 knots
Approximate cruising radius, 1600 nm / 12 knots
Typical complement: 62-81
Estimated cost, $308,000 (£77,000)
Remarks:
Caution: Hull structure is subject to strain in open-sea
conditions.
Caution: Magazines and engineering spaces are very cramped,
and
lack adequate watertight subdivision.
Caution: Delicate, lightwight machinery.
Ship has slow, easy roll; a good, steady gun platform.
Good seaboat; rides out heavy weather easily.
Distribution of weights:
Percent
normal
displacement:
Armament .........................
8 tonnes = 1 pct
Armor, total .....................
3 tonnes = 0 pct
Armament
3 tonnes = 0 pct
Machinery ........................ 366 tonnes
= 59 pct
Hull and fittings; equipment .....
156 tonnes = 25 pct
Fuel, ammunition, stores .........
78 tonnes = 13 pct
Miscellaneous weights ............
10 tonnes = 2 pct
-----
620 tonnes = 100 pct
Estimated metacentric height, 0.4 m
Displacement summary:
Light ship:
543 tonnes
Standard displacement: 560 tonnes
Normal service:
620 tonnes
Full load:
666 tonnes
Loading submergence 351 tonnes/metre
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Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.50
Shellfire needed to sink: 68 kg = 4.9 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, 0.11
Relative quality as a seaboat: 1.23
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Hull form characteristics:
Block coefficient: 0.45
Sharpness coefficient: 0.33
Hull speed coefficient 'M' = 8.52
'Natural speed' for length = 15.4 knots
Power going to wave formation
at top speed: 67 percent
Estimated hull characteristics and strength:
Relative underwater volume absorbed by
magazines and engineering spaces: 202 percent
Relative accommodation and working space: 97 percent
Displacement factor: 21 percent
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.47
(Structure weight per square
metre
of hull surface: 111 kg)
Relative longitudinal hull strength: 1.39
(for 3.70 m average freeboard;
freeboard
adjustment +1.05 m)
Relative composite hull strength: 0.52
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[Machine-readable parameters: Spring Style v. 1.2.1]
237.80 x 26.90 x 7.54; 12.14 -- Dimensions
0.45 -- Block coefficient
1904 -- Year laid down
26.00 / 1600
/ 12.00; Reciprocating -- Speed / radius / cruise
10 tons -- Miscellaneous weights
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2 x 3.94; 0 -- Main
battery; turrets
Central positioning of guns
Gun-shields
:
0 -- No secondary battery
1 x 1.46 -- Tertiary (QF/AA) battery
Gun-shields
:
4 x 0.51 -- Fourth (light) battery
4 / 0 / 17.72 -- TT / submerged / size
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0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
0.98
/ 0.00 / 0.98 / 0.00 -- Battery armor
(Note: For portability, values are stored in Anglo-American units)
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