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Overview

Varonis II, Latvian Destroyer Laid Down 1938

Displacement:
2,383 t light; 2,536 t standard; 2,830 t normal; 3,066 t full load

Dimensions: Length overall / water x beam x draught
449.47 ft / 433.07 ft x 41.01 ft x 13.94 ft (normal load)
137.00 m / 132.00 m x 12.50 m x 4.25 m

Armament:
8 - 5.12" / 130 mm guns (4x2 guns), 67.03lbs / 30.41kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 1.46" / 37.0 mm guns (6x2 guns), 1.55lbs / 0.70kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
16 - 0.79" / 20.0 mm guns (8x2 guns), 0.24lbs / 0.11kg shells, 1938 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 559 lbs / 253 kg
Shells per gun, main battery: 300
10 - 25.6" / 650 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.38" / 35 mm 0.98" / 25 mm 1.38" / 35 mm
2nd: 0.79" / 20 mm 0.79" / 20 mm -
3rd: 0.79" / 20 mm 0.79" / 20 mm -

- Conning tower: 3.15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 50,970 shp / 38,024 Kw = 35.00 kts
Range 5,500nm at 15.00 kts
Bunker at max displacement = 530 tons

Complement:
193 - 252

Cost:
£1.858 million / $7.432 million

Distribution of weights at normal displacement:
Armament: 83 tons, 2.9 %
Armour: 59 tons, 2.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 45 tons, 1.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 14 tons, 0.5 %
Machinery: 1,259 tons, 44.5 %
Hull, fittings & equipment: 912 tons, 32.2 %
Fuel, ammunition & stores: 447 tons, 15.8 %
Miscellaneous weights: 70 tons, 2.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
839 lbs / 380 Kg = 12.5 x 5.1 " / 130 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 1.7 ft / 0.5 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.64
Seaboat quality (Average = 1.00): 1.11

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.56 : 1
'Natural speed' for length: 23.96 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 27.75 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.05 ft / 8.55 m
- Forecastle (20 %): 21.00 ft / 6.40 m
- Mid (40 %): 21.00 ft / 6.40 m (14.01 ft / 4.27 m aft of break)
- Quarterdeck (15 %): 14.01 ft / 4.27 m
- Stern: 14.01 ft / 4.27 m
- Average freeboard: 17.37 ft / 5.29 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 170.4 %
- Above water (accommodation/working, high = better): 76.7 %
Waterplane Area: 11,346 Square feet or 1,054 Square metres
Displacement factor (Displacement / loading): 79 %
Structure weight / hull surface area: 43 lbs/sq ft or 208 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.60
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Ship has slow, easy roll, a good, steady gun platform

Breakdown of Miscellaneous Weights:
- 30 tons for torpedo reloads
- 5 tons for hydrophones
- 10 tons for assorted electronic gear
- 15 tons for depth charges (70x420-lb bombs)
- 10 tons extra gear for guns

Ships in Class:
- Varonis II: Originally Built for export in Bulgaria in 1938.

Notes:
Originally named Neuzvarum (Invincible); renamed Varonis in 1947 after the sale of the original Varonis (to Russia).

Ronis class, Latvian Destroyer laid down 1940
The Ronis is an export variant of the Russian Pechora class destroyer., laid down for export in 1940 by the Russians. A total of four ships were built over a number of years.

Displacement:
2,106 t light; 2,241 t standard; 2,540 t normal; 2,779 t full load

Dimensions: Length overall / water x beam x draught
409.99 ft / 393.70 ft x 37.40 ft x 15.09 ft (normal load)
124.96 m / 120.00 m x 11.40 m x 4.60 m

Armament:
6 - 5.12" / 130 mm guns (3x2 guns), 79.37lbs / 36.00kg shells, 1940 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 1.46" / 37.0 mm guns (1x4 guns), 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in a deck mount with hoist
on centreline aft, all raised guns - superfiring
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1940 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
4 - 0.55" / 14.0 mm guns in single mounts, 0.08lbs / 0.04kg shells, 1940 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 495 lbs / 225 kg
Shells per gun, main battery: 300
8 - 20.9" / 530 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.20" / 5 mm -
2nd: 0.98" / 25 mm 0.20" / 5 mm -
3rd: 0.98" / 25 mm 0.20" / 5 mm -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 49,907 shp / 37,231 Kw = 35.00 kts
Range 4,000nm at 18.00 kts
Bunker at max displacement = 538 tons

Complement:
178 - 232

Cost:
£1.746 million / $6.983 million

Distribution of weights at normal displacement:
Armament: 63 tons, 2.5 %
Armour: 13 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 13 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 1,176 tons, 46.3 %
Hull, fittings & equipment: 753 tons, 29.7 %
Fuel, ammunition & stores: 434 tons, 17.1 %
Miscellaneous weights: 101 tons, 4.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
644 lbs / 292 Kg = 9.6 x 5.1 " / 130 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 1.4 ft / 0.4 m
Roll period: 13.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.74
Seaboat quality (Average = 1.00): 1.01

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.53 : 1
'Natural speed' for length: 22.85 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.89 ft / 8.50 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (49 %): 19.36 ft / 5.90 m (11.15 ft / 3.40 m aft of break)
- Quarterdeck (15 %): 11.15 ft / 3.40 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 16.09 ft / 4.90 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 174.5 %
- Above water (accommodation/working, high = better): 94.5 %
Waterplane Area: 9,407 Square feet or 874 Square metres
Displacement factor (Displacement / loading): 77 %
Structure weight / hull surface area: 40 lbs/sq ft or 197 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.86
- Overall: 0.57
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Breakdown of Miscellaneous Weights:
Air search radar - 10 tons
Extra machinery and ammo for twin automatic 130mm DP mounts - 30 tons
Asdic - 10 tons
ASW weapons and torpedoes - 51 tons

Ships in Class:
- Ronis: Laid down 1940.
- Imanta: Laid down 1940.
- Visvaldis: Laid down 1943.
- Talivaldis: Laid down 1943.