Petya class

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Project 159
Petya I frigate, 1985
Petya I frigate, 1985
Ship data
Ship type frigate
Shipyard * Shipyard 820 Kaliningrad
Construction period 1961 to 1976
Units built Project 115: 19

Project 115A: 23
Project 115AE: 14

period of service 1961 to 1994
Ship dimensions and crew
length
82.3 m ( Lüa )
width 9.2 m
Draft Max. 2.85 m
displacement empty: 938 t

Stake: 1,077

 
crew Project 115: 98
Machine system
machine CODAG
Machine
performanceTemplate: Infobox ship / maintenance / service format
  • 1 × 6,000 PS (4,413 kW)
  • 2 × 15,000 PS (11,032 kW)
Top
speed 		33 kn (61 km / h)
propeller 3
Armament
2 × 2 76 mm L / 59 AK-726
4 × 1 depth bomb launcher RBU-2500
1 × 5 torpedo tubes ∅ 406 mm

Project 159 was a class of light frigates of the Soviet Navy with armament focus on anti-submarine combat. The NATO described the vessels as Petya class .

history

The ships of Project 159 were developed in the 1950s and were designed primarily for anti-submarine warfare. The units of Project 159 were built between 1961 and 1964 and put into service by the Soviet Navy.

Between 1964 and 1969, 27 ships of Project 159A (Petya II class) were built and put into service. The main difference to Project 159 is the increased anti-submarine armament. From 1973, nine ships of Project 159 (Petya-I-Class) were converted to Project 159M (Petya-I-Mod). The conversion mainly includes the installation of a "Wega" diving sonar at the expense of some other weapon systems. In 1978 a ship from Project 159A (Petya II class) was equipped with new sensors, the armament was retained.

Project 159AE (Petya III class) was a special export version of Project 159 that was delivered to India , Syria and Vietnam . With an engine power of 2 × 12,000 HP and 1 × 5,400 HP, the class was motorized significantly less than the Soviet ships and only reached 29 instead of 33 knots.

Armament

General

Basically, the armament of all versions of Project 159 was designed for anti-submarine defense. Various depth charges and torpedo systems were also available. Two AK-726 twin guns were installed on all ships to combat sea, land and air targets . Otherwise there was no further armament against air or sea targets.

Differences in weapons

The armament of Project 159M (Petya-I-Mod) was much poorer than that of the original version 159. For the installation of more efficient sonar, the mine rails at the stern had to be removed. The 159M project was the only variant in the class that did not carry any mines. In addition, two RBU-2500 had to be removed due to changes in the deck structure for new sensor systems.

The ships of Project 159A (Petya II class) were equipped with reinforced anti-submarine armament. The main differences here were the replacement of the four RBU-2500s with four RBU-6000s and the installation of a second five-fold torpedo launcher .

The modifications of Project 159A were carried out in a similar way as those of Project 159M (Petya-I-Mod). Here, however, the mine rails and the two depth charges could be retained. For this, however, a narrower deckhouse had to be installed.

Project 159 (Petya I class)

  • Artillery systems:
  • Depth thrower:
  • Torpedo systems:
    • 1 × five-tube torpedo launcher (406 mm)
  • Mines:
    • 20-30

Project 159M (Petya-I-Mod)

Stern of project 159M with device for the diving sonar
  • Artillery systems:
    • 2 × twin guns AK-726 (76 mm)
  • Depth thrower:
    • 2 × 16-tube RBU-2500
  • Torpedo systems:
    • 1 × five-tube torpedo launcher (406 mm)

Project 159A (Petya II class and Petya II mod)

Drawing of SKR-112 of the Ukrainian Naval Forces, July 12, 1992
  • Artillery systems:
    • 2 × twin guns AK-726 (76 mm)
  • Depth thrower:
  • Torpedo systems:
    • 2 × five-tube torpedo launchers (406 mm)
  • Mines:
    • 20-30

Dimensions and drive

The ships had a length of 81.8 m (Petya-I-Klasse and Petya-I-Mod) or 82.5 m (Petya-II-Klasse and Petya-II-Mod). The width of all variants was 9.1 m. All ships also had a draft of 2.9 m. The water displacement was therefore only slightly changed. For the ships of the Petya-I-Class and Petya-I-Mod it was 950 t standard and 1150 t fully loaded. On the ships of the Petya II class and Petya II Mod 950 t standard and 1160 t fully loaded.

All variants of the Petya class were driven by a CODAG system. It consisted of a diesel engine with approx. 6,000 HP and two gas turbines with 30,000 HP. The ships reached a maximum speed of over 30 knots. The maximum range at an ideal speed of 10 knots was approximately 4,870 nautical miles .

Operational readiness

The Soviet Navy withdrew all Petya I-class ships from active service by 1989. The decommissioning of all Petya-I-Mod followed 1990–1991. Only the ships of the Petya II class were still in service for a short time in the Russian Navy , but even there they were decommissioned in 1994.

Three ships of the Petya II class were handed over to the Vietnamese Navy , including the HQ-13 (ex SKR-141) in 1983 and the HQ-15 (ex SKR-130) and HQ-17 (e SKR-135) in 1984 . As well as a ship to Ethiopia.

In addition, twelve ships of the Petya III class were built for export to India. Instead of the five 406 mm torpedo tubes, they had three 533 mm torpedo tubes and were called the Arnala class . The last ship - the INS Anjadip - was decommissioned in December 2003. In addition, eight Petya III-class ships were sold to Vietnam and Syria, six of which are in service in the Vietnamese Navy and two in the Syrian Navy .

Evidence and references

literature

  • С.С. Бережной: Сторожевые корабли ВМФ СССР и России 1945-2000. (For example: SS Bereschnoi: Guard ships of the Navy of the USSR and Russia. ) Moscow 2000 (Russian).

Web links

Commons : Petya class  - collection of pictures, videos and audio files