Kashin class Submarine Chaser, laid down 1916
Length, 35.0 m x Beam, 5.0 m x Depth, 1.4 m
136 tonnes normal displacement (119 tonnes standard)
Main battery: 1 x 5.7-cm
Secondary battery: 2 x 3.7-cm
AA battery: 2 x 0.8-cm
Weight of broadside: 4 kg
25 tons depth charges/cargo

Hull unarmored
Conning tower, 2.5 cm
Battery armor:
Main, 2.5 cm shields / secondary, 2.5 cm shields
Maximum speed for 583 shaft kw = 16.00 knots
Approximate cruising radius, 2300 nm / 10 knots
Typical complement: 20-26

Estimated cost, $62,000 (£15,000)

Remarks:
Ship has slow, easy roll; a good, steady gun platform.
Excellent seaboat; comfortable and able to fight her guns in the heaviest weather.

Distribution of weights:
Percent normal displacement:
Armament ......................... 1 tonnes = 1 pct
Armor, total ..................... 2 tonnes = 1 pct
C.T. 1 tonnes = 0 pct
Armament 1 tonnes = 1 pct
Machinery ........................ 32 tonnes = 24 pct
Hull and fittings; equipment ..... 55 tonnes = 41 pct
Fuel, ammunition, stores ......... 21 tonnes = 15 pct
Miscellaneous weights ............ 25 tonnes = 18 pct

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136 tonnes = 100 pct
Estimated metacentric height, 0.1 m
Displacement summary:
Light ship: 115 tonnes
Standard displacement: 119 tonnes
Normal service: 136 tonnes
Full load: 149 tonnes
Loading submergence 118 tonnes/metre

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Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.04
Shellfire needed to sink: 94 kg = 36.7 x 5.7-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)
Torpedoes needed to sink: 0.3
(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, 0.12
Relative quality as a seaboat: 1.51

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Hull form characteristics:
Block coefficient: 0.55
Sharpness coefficient: 0.39
Hull speed coefficient 'M' = 6.82
'Natural speed' for length = 10.7 knots
Power going to wave formation
at top speed: 66 percent

Estimated hull characteristics and strength:
Relative underwater volume absorbed by
magazines and engineering spaces: 103 percent
Relative accommodation and working space: 99 percent

Displacement factor: 136 percent
(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.89
(Structure weight per square
metre of hull surface: 120 kg)
Relative longitudinal hull strength: 4.20
(for 2.50 m average freeboard;
freeboard adjustment +0.55 m)
Relative composite hull strength: 1.04

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[Machine-readable parameters: Spring Style v. 1.2.1]
114.80 x 16.40 x 4.59; 8.20 -- Dimensions
0.55 -- Block coefficient
1916 -- Year laid down
16.00 / 2300 / 10.00; Turbine, coal fired -- Speed / radius / cruise
25 tons -- Miscellaneous weights

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1 x 2.24; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
2 x 1.46; 0 -- Secondary battery; turrets
Gun-shields
:
2 x 0.31 -- Tertiary (QF/AA) battery
:
0 -- No fourth (light) battery
0 -- No torpedo armament

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0.00 -- No belt armor
0.00 / 0.98 -- Deck / CT
0.98 / 0.98 / 0.00 / 0.00 -- Battery armor

(Note: For portability, values are stored in Anglo-American units)

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