Oscar-class submarine vs Tench-class submarine

ASubmarines

Oscar-class submarine

Nuclear-powered cruise missile submarine

Credit

Sergey Konovalov · CC BY 4.0 · Resized · CC BY 4.0 · Source ↗ · Modified

Tench-class submarine — licensed reference photograph

BSubmarines

Tench-class submarine

Diesel-electric submarine

Credit

U.S. Navy · Public domain · Resized · Public domain · Source ↗ · Modified

First system

Second system

At a glance

Side by side

Length comparisonOne shared metre scale

Oscar-class submarinemaximum

155 m

Length source ↗

Tench-class submarineLength · source measurement 2

95 m

Length source ↗

Lengths retain their source configuration and measurement scope.

Measured figures

Head to head

23 of 30 rows sourced on both sides

155mmaximum

95mLength · source measurement 2

LengthScopes differ

All recorded figures & sources

155 m

maximum

Single source

155 m (508 ft 6 in) maximum^[source]

94.996 m

Length · source measurement 1

Single source

95 m

Length · source measurement 2

Single source

311 ft 8 in – 311 ft 9 in (95.0 m)^[source]

18.2m

8.31mBeam · source measurement 1

Beam

All recorded figures & sources

18.2 m

Beam

Single source

18.2 m (59 ft 9 in)^[source]

8.3058 m

Beam · source measurement 1

Single source

8.3 m

Beam · source measurement 2

Single source

27 ft 3 in – 27 ft 4 in (8.3 m)^[source]

5.2mmaximum

Draught

All recorded figures & sources

9 m

Draught

Single source

9 m (29 ft 6 in)^[source]

5.2 m

maximum

Single source

17 ft (5.2 m) maximum^[source]

19,400tSubmerged · source measurement 4

2,455–2,468tonnes) submerged

DisplacementScopes differ

All recorded figures & sources

16,500 tonnes

Submerged · source measurement 3

Single source

19,400 tonnes

Submerged · source measurement 4

Single source

12,500 tonnes

Surfaced · source measurement 1

Single source

14,700 tonnes

Surfaced · source measurement 2

Single source

12,500/14,700 tonnes surfaced 16,500/19,400 tonnes submerged^[source]

1,595 tonnes

1,570 tons ( ) surfaced 2,416–2,429 tons (

Single source

2,455–2,468 tonnes

) submerged

Single source

94/107

10officers, 71 enlisted

Complement

All recorded figures & sources

94/107^[source]

10 people

officers, 71 enlisted

Single source

10 officers, 71 enlisted^[source]

59km/hMaximum; Submerged

38km/hMaximum; Surfaced

SpeedScopes differ

All recorded figures & sources

59 km/h

Maximum; Submerged

Single source

28 km/h

Maximum; Surfaced

Single source

15 knots (28 km/h; 17 mph) surfaced 32 knots (59 km/h; 37 mph) submerged^[source]

16 km/h

Maximum; Submerged

Single source

38 km/h

Maximum; Surfaced

Single source

—

20,000kmsurfaced at 10 knots (19 km/h)

Range

All recorded figures & sources

20,000 km

surfaced at 10 knots (19 km/h)

Single source

11,000 nautical miles (20,000 km) surfaced at 10 knots (19 km/h)^[source]

120 days

48h

Endurance

All recorded figures & sources

120 days^[source]

48 h

at 2 knots (3.7 km/h) submerged 75 days on patrol

Single source

48 hours at 2 knots (3.7 km/h) submerged 75 days on patrol^[source]

Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.

Configuration

Details

Oscar-class submarine and Tench-class submarine configuration
Specification	Oscar-class submarine	Tench-class submarine
Power	2 × pressurized water cooled reactors, HEU ≤ 45%^[source] 2 × steam turbines delivering 73,070 kW (97,990 shp) to two shafts^[source]	4 × diesel engines driving electrical generators ( Fairbanks-Morse or General Motors ( Corsair only)) 2 × 126- cell Sargo batteries 2 × low-speed direct drive electric motors ( Elliott Company , General Electric , or Westinghouse ) two propellers 5,400 shp (4,000 kW) surfaced 2,740 shp (2,040 kW) submerged^[source]
Name	Oscar II class^[source]	—
Builders	Sevmash^[source]	Portsmouth Naval Shipyard Electric Boat Company Boston Navy Yard^[source]
Operators	Soviet Navy Russian Navy^[source]	United States Navy Republic of China Navy Turkish Navy Hellenic Navy Peruvian Navy Pakistan Navy Royal Canadian Navy Italian Navy Brazilian Navy Bolivarian Navy of Venezuela^[source]
Preceded by	Papa class Charlie class^[source]	Balao class^[source]
Succeeded by	Yasen class^[source]	Barracuda class^[source]
Built	1975–2022, may be restarted^[source]	1944–1951^[source]
In commission	1980–present^[source]	1944–present^[source]
Planned	20 (2 949, 18 949A)^[source]	—
Completed	14 (2 949, 11 949A, 1 09852)^[source]	29^[source]
Canceled	6 (2 incomplete, 4 never laid down)^[source]	51^[source]
Active	6 (modernization of some boats to 949AM)^[source]	1^[source]
Laid up	2^[source]	—
Lost	1^[source]	1^[source]
Retired	5?^[source]	27^[source]
Type	Nuclear-powered cruise missile submarine^[source]	Diesel-electric submarine^[source]
Test depth	600 m^[source]	400 ft (120 m)^[source]
Armament	4 × 533 mm (21.0 in) and 2 × 650 mm (26 in) torpedo tubes in bow 28 × 533 mm and 650 mm weapons, including RPK-2 Vyuga (SS-N-15 Starfish) anti-submarine missiles with 15 kt nuclear warheads and RPK-6 Vodopad/RPK-7 Veter (SS-N-16) anti-submarine missiles with 200 kt nuclear warhead or Type 40 anti-submarine torpedo or 32 ground mines 24 × P-700 Granit (SS-N-19 Shipwreck) cruise missiles with 750 kilograms (1,650 lb) HE or 6 × 100 Mt Poseidon nuclear-powered, nuclear-armed drones^[source]	10 × 21-inch (533 mm) torpedo tubes (6 forward, 4 aft) 28 torpedoes 1 × 5-inch (127 mm) / 25 caliber deck gun Bofors 40 mm and Oerlikon 20 mm cannon^[source]
Alternative designation	Oscar II^[source]	—
Country of origin	Soviet Union^[source]	United States^[source]
Subclasses	—	Corsair class^[source]
Preserved	—	3^[source]

FORCETALLY

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Oscar-class submarine

Tench-class submarine

Power

2 × pressurized water cooled reactors, HEU ≤ 45%^[source]

2 × steam turbines delivering 73,070 kW (97,990 shp) to two shafts^[source]

4 × diesel engines driving electrical generators ( Fairbanks-Morse or General Motors ( Corsair only)) 2 × 126- cell Sargo batteries 2 × low-speed direct drive electric motors ( Elliott Company , General Electric , or Westinghouse ) two propellers 5,400 shp (4,000 kW) surfaced 2,740 shp (2,040 kW) submerged^[source]

Name

Oscar II class^[source]

—

Builders

Sevmash^[source]

Portsmouth Naval Shipyard Electric Boat Company Boston Navy Yard^[source]

Operators

Soviet Navy Russian Navy^[source]

United States Navy Republic of China Navy Turkish Navy Hellenic Navy Peruvian Navy Pakistan Navy Royal Canadian Navy Italian Navy Brazilian Navy Bolivarian Navy of Venezuela^[source]

Preceded by

Papa class Charlie class^[source]

Balao class^[source]

Succeeded by

Yasen class^[source]

Barracuda class^[source]

Built

1975–2022, may be restarted^[source]

1944–1951^[source]

In commission

1980–present^[source]

1944–present^[source]

Planned

20 (2 949, 18 949A)^[source]

—

Completed

14 (2 949, 11 949A, 1 09852)^[source]

29^[source]

Canceled

6 (2 incomplete, 4 never laid down)^[source]

51^[source]

Active

6 (modernization of some boats to 949AM)^[source]

1^[source]

Laid up

2^[source]

—

Lost

1^[source]

Retired

5?^[source]

27^[source]

Type

Nuclear-powered cruise missile submarine^[source]

Diesel-electric submarine^[source]

Test depth

600 m^[source]

400 ft (120 m)^[source]

Armament

4 × 533 mm (21.0 in) and 2 × 650 mm (26 in) torpedo tubes in bow 28 × 533 mm and 650 mm weapons, including RPK-2 Vyuga (SS-N-15 Starfish) anti-submarine missiles with 15 kt nuclear warheads and RPK-6 Vodopad/RPK-7 Veter (SS-N-16) anti-submarine missiles with 200 kt nuclear warhead or Type 40 anti-submarine torpedo or 32 ground mines 24 × P-700 Granit (SS-N-19 Shipwreck) cruise missiles with 750 kilograms (1,650 lb) HE or 6 × 100 Mt Poseidon nuclear-powered, nuclear-armed drones^[source]

10 × 21-inch (533 mm) torpedo tubes (6 forward, 4 aft) 28 torpedoes 1 × 5-inch (127 mm) / 25 caliber deck gun Bofors 40 mm and Oerlikon 20 mm cannon^[source]

Alternative designation

Oscar II^[source]

—

Country of origin

Soviet Union^[source]

United States^[source]

Subclasses

—

Corsair class^[source]

Preserved

—

3^[source]