Difference between revisions of "SKR-1"

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{{Specs-Card|code=ussr_skr_pr159}}
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{{Specs-Card
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|code=ussr_skr_pr159
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|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
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}}
  
 
== Description ==
 
== Description ==
''In the first part of the description, cover the history of the ship’s creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot. If a beginner player has a hard time remembering vehicles by name, a picture will help them understand which ship is being discussed.''
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<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' -->
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The '''{{Specs|name}}''' is a rank {{Specs|rank}} Soviet frigate {{Battle-rating}}. It was introduced during [[Update 1.79 "Project X"]] when the Soviet fleet was implemented into the game.
  
 
== General info ==
 
== General info ==
 
=== Survivability and armour ===
 
=== Survivability and armour ===
''Talk about the vehicle’s armor. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and maneuverability. Evaluate the survivability of the primary and secondary armament separately. Don’t forget to mention the size of the crew, which plays an important role in fleet mechanics. Tips for preserving survivability should be saved for the “Use in battle” section.
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{{Specs-Fleet-Armour}}
If necessary, use a graphic template to show the most well-protected or most vulnerable points in the armor.''
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<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' -->
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Being a light anti-submarine frigate, the Pr. 159 Petya-class has very little substantial armour, with just 5 mm turret armour and the 15 mm splash guard for the forward turret. While these may minimize damage caused by small calibre HE rounds and splash damage from other areas being hit, they will not protect the turrets from direct fire starting at even the size of 12.7 mm machine guns. General survivability is not much better, as the primary armament is limited to two large turrets. Losing turrets is common on the Petya and will result in your fire being halved at the least. Furthermore, the low crew count of 98 means that a very low damage threshold can be sustained on major components before the ship is destroyed. Thankfully the Petya has a few aces up its sleeve to counteract these issues. To begin with, the crew are very spaced out in the ship, meaning that you will most likely survive the first few salvoes. Secondly, because the hull has such a low freeboard for the majority of the ship, most of the machinery and ammunition is protected by the sea.
 +
 
 +
Overall the ship's survivability is below average, with its low crew and few turrets being the brunt of the issue.
  
 
=== Mobility ===
 
=== Mobility ===
''Write about the ship’s mobility. Evaluate its power and maneuverability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward speed and reverse speed.''
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{{Specs-Fleet-Mobility}}
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<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' -->
 +
Mobility, while very similar to the [[SKR-7]], is lacklustre especially as the twin gas turbines are gone. Starting at 51 km/h stock, the ship lags behind destroyers and most cruisers, and cannot hold a candle to the higher-rank MTBs that it might face. However, of the corvette/frigate class, the Pr. 159 has a distinct advantage, often holding a 10 km/h advantage or more over other ships of its size. These are rarely faced however, and as such, it cannot be expected that you will ever be leading the charge in matches. The turn radius of the ship is reasonable, however, the initial snap can be very deceiving when initiating a turn. One major issue when manoeuvring the Petya is the existence of the hull-mounted sonar system. This dips far below the keel of the hull and can often be caught on rocks. Special attention must be given when manoeuvring around shoals and beaches where the sonar might holdfast.
 +
 
 +
{{NavalMobility}}
 +
 
 +
=== Modifications and economy ===
 +
{{Specs-Economy}}
  
 
== Armament ==
 
== Armament ==
 +
{{Specs-Fleet-Armaments}}
 
=== Primary armament ===
 
=== Primary armament ===
''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <nowiki>{{main|Weapon name}}</nowiki>.
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{{Specs-Fleet-Primary}}
Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.''
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<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' -->
 +
{{main|AK-726 (76 mm)}}
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 +
The primary armament of the Pr. 159 is where the ship shines. It is armed with a pair of 76 mm AK-726 semi-automatic gun turrets. Each of these turrets contains two guns firing a total of 90 rounds per minute. This rate of fire allows for the ship to dismantle any opponent vessel in seconds, from MTBs all the way up to destroyer leaders and light cruisers. These guns have very nice post-penetration effects on targets lacking armour and can be extremely dangerous should you sneak up on someone. This rate of fire comes at a price, however, and that price is two-fold. Firstly, the guns overheat quickly, barrages tend to be limited and the guns must be watched for overheat. Secondly, the shells have a relatively short range and their effectiveness drops off quickly beyond 5 km when shells begin to miss and fire arcs become too great to regularly hit the target.
  
=== Secondary armament ===
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{{:AK-726 (76 mm)/Ammunition|76 mm HE OF-62, 76 mm HE ZS-62}}
''Some ships are fitted with weapons of various calibers. Evaluate the secondary armament and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that anti-air armament, even heavy caliber weapons, belong in the next section.''
 
  
''If there is no secondary armament, remove this section.''
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=== Additional armament ===
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{{Specs-Fleet-Additional}}
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<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' -->
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{{main|SET-40 (400 mm)|RBU-2500}}
  
=== Anti-aircraft armament ===
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The Pr. 159 is armed with a single quintuple 406 mm torpedo launcher armed with the SET-40 lightweight anti-submarine torpedo. The launcher has very good launch angles and five torpedoes are quite reasonable however that is where the praise ends. The torpedoes have only one operational setting, with no option for upgrades and are slow. At 54 km/h, a cruiser with keen eyes can outrun these torpedoes and with an 8-km range, they are not going to reach much past the effective range of your turrets. Worse still, the torpedoes have a meagre 80 kg warhead, which will not destroy ships larger than a corvette in one hit. These torpedoes have limited use in surprising unsuspecting captains should you face something armoured such as a heavy cruiser, and can be used should the main battery fall silent, however, they are unlikely to destroy anything without multiple hits and must be used at a range where they cannot be avoided easily.
''An important part of the ship’s armament responsible for air raid defense. Talk about the ship’s anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets.''
 
  
''If there is no anti-aircraft artillery, remove this section.''
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The Petya rounds off the armament with four RBU-2500 anti-submarine rocket launchers, each carrying 12 rockets to total 48. As being rockets they have a limited effective engagement range, high arcs of fire and are very hard to aim in conjunction with primary weapons, however should a small boat decide to get too close or should you decide to engage a target at point-blank range, the barrage of 26 kg warheads smashing into the superstructure and hull of the hostile ship will almost certainly cripple it, if not outright sink it.
  
=== Torpedo armament ===
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=== Radar ===
''Many ships are armed with torpedo launchers, and for some vessels such as boats, torpedoes are an extremely important means of defeating an opponent. Evaluate the position of the torpedo launchers, discuss the ammunition available, firing specifics such as dead zones, features of the torpedoes themselves, etc.''
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[[File:Pr. 159 Radars.png|alt=|thumb|Red box: MR-302 Rubka air/surface search radarBlue box: MR-102 Turel fire control radar]]
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The Pr. 159 has access to search and targeting radar for the [[AK-726 (76 mm)|76 mm AK-726]] semi-automatic gun turrets, making anti-air capabilities much more advanced than most of the ships it will face at its br. The location of the radars are in a similar manner they are located in the Pr. 35 (bridge is the main difference between both). However, this does not affect the performance of said radars. It is equipped with an MR-302 Rubka air/surface search radar and an MR-105 Turel fire control radar, both available in most of the cold war soviet anti submarine frigates. The MR-302 is located on top of the main mast with two Don navigation radar right below it located at port and starboard from the mast. MR-105 is located on top of the bridge (refer to picture). Enemy pilots do not account the existence of this radars as they are uncommon in game, use surprise to your advantage. Targeting radar makes engaging enemy planes an easier task with standard HE ammo. When using HE-VT, AA engagements will be finished in couple seconds. Be aware of the distance as in engagements with planes in distances smaller than 1 km, weapons tend to overshoot even when following target indicator. Engage air targets as soon as you see them in a relatively close distance (2-10 km). Proximity shells will make this task easier.
 +
[[File:Radar interface Pr. 35.png|thumb|Petya's radar display. Dark green: within targeting radar angle<br>Light green: targeting radar dead zone]]
  
''If there is no torpedo armament, remove this section.''
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{| class="wikitable" style="text-align:center"
 +
! colspan="4" | MR-302 Rubka - Air/surface Search Radar
 +
|-
 +
! {{Annotation|Maximum<br/>Detection<br/>Range|The maximum possible range at which a target can be detected}}
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! {{Annotation|Guaranteed<br/>Detection<br/>Range|The range, below which, detection of a target is practically guaranteed}}
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! {{Annotation|Max Azimuth<br/>Scan Angle|How far to each side the radar can scan (widest search mode)}}
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! {{Annotation|Max Elevation<br/>Scan Angle|How far up and down the radar can scan (widest search mode)}}
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|-
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| 120,000 || 10,000 m || ±180° || 0°/+75°
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|-
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! colspan="4" | MR-105 Turel - Fire Control Radar
 +
|-
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! {{Annotation|Maximum<br/>Tracking<br/>Range|The maximum range at which a target can be tracked}}
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! {{Annotation|Minimum<br/>Tracking<br/>Range|The range below which targets cannot be tracked by the radar}}
 +
! {{Annotation|Azimuth Tracking<br/>Angle|How far to each side the radar can track a target}}
 +
! {{Annotation|Elevation Tracking<br/>Angle|How far up and down the radar can track a target}}
 +
|-
 +
| 10,000 m || 100 m || ±155° || 0°/+80°
 +
|-
 +
|}
  
=== Special armament ===
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== Usage in battles ==
''Depth charges, mines, rocket launchers and missiles are also effective in skilled hands and can be an unexpected surprise for an opponent. Evaluate the ammunition of this type of armament and rate its performance in combat.''
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<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' -->
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The Petya excels in close-quarter brawling with anything its shells can penetrate, especially in dispatching torpedo boats and early destroyers. This vehicle is heavily reliant on both map and BR; it will crush enemy ships in a downtier within seconds, but against ships at its BR and above it will struggle heavily even within its gun range. It is best not to spawn this vehicle on maps consisting of the open ocean unless you are left with no choice; due to its limited range the Petya needs to exploit cover in order to close the gap without being targeted by guns with over twice the range. Critically, captains should avoid the wide-open ocean, as they will draw fire from targets that they cannot engage themselves. Because the guns only fire HE, captains of the Petya should avoid engaging cruisers, as they may find penetrating and damaging the components of cruisers difficult even in close quarters.
  
== Usage in the battles ==
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Captains of the Petya should attempt to close the distance on any target and engage with their guns within 5 km for maximum effectiveness, reserving torpedoes and rockets for extreme close quarters or emergencies. Prior to unlocking HE-VT, Petya lacks in anti air capabilities but thanks to targeting radar, Petya can engage targets with relative ease. The HE-VT once unlocked should be the primary armament, due to a slightly greater explosive mass and better effectiveness against planes. The rocket launcher has no anti submarine use in game but provides a knock-out with a single rocket when fired at a small vessel, it can also be used as rudimentary artillery to fire above obstacles due to the flying arc. They can be used to engage targets at distance but the recommended engagement distance should be at 3 km, this is to compensate travelling speed. Torpedoes, while limited firing arc, are your main weapon against heavily armoured vessels like [[HMS Belfast]], two of them will disable the cruiser. Rockets can also be used against them since, thanks to the high explosive power, they can lit on fire all cruisers when fired at engine compartment. They will also cripple or destroy main weaponry that the 76 mm cannons may not penetrate.
''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don’t get try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).''
 
  
 
=== Pros and cons ===
 
=== Pros and cons ===
''Summarize and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Do not use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - they have a substitution in the form of softer "inadequate", "effective".''
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<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
  
 
'''Pros:'''
 
'''Pros:'''
*
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 +
* Very good rate of fire for its calibre
 +
* No blind spots for turrets
 +
* Can deploy rocket launcher (after research)
 +
* Has a large amount of rockets
  
 
'''Cons:'''
 
'''Cons:'''
*
+
 
 +
* Lacks dedicated AA guns
 +
* No hull armour
 +
* Rockets have a slow flight speed
  
 
== History ==
 
== History ==
''Talk about the history of the creation and military application of the ship in greater detail than in the introduction. If there turns out to be too much historical information, put it in a separate article, taking the link to the vehicle article and adding the “/historical” block to it (e.g. https://wiki.warthunder.ru/Vehicle-name/historical) and add a link to it here using the main template. Links to sources must be provided at the end of the article.''
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<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
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 +
The Pr. 159, NATO reporting name Petya-Class, was a class of patrol & anti-submarine warfare frigates built for the Soviet Navy during the 1960s. The ships were the first Soviet vessels with gas turbine propulsion and were optimised for anti-submarine warfare. In total, 54 vessels were built, including some that remain in service today with foreign navies.
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 +
The Petya-class displaced 1,150 tons full load and had a crew complement of 90. The ships were the first class of ships in Soviet service to be fitted with a gas turbine (CODAG) propulsion system, composed of a single diesel engine for cruising and two gas turbines for additional speed. Being designed for anti-submarine warfare, the ships were armed with extensive anti-submarine armament, including four RBU-6000 anti-submarine rocket launchers and a quintuple 406 mm (16-inch) torpedo tube mount capable of firing guided anti-submarine torpedoes. The ships were also fitted with a full sonar suite for detecting submarines. Finally, two 76 mm AK-726 automatic guns were fitted, one fore and aft, for multipurpose anti-air and anti-ship capabilities.
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In total, 54 ships were at the Kaliningrad and Khabarovsk shipyards; some ships were retained for service with the Soviet navy, while numerous other vessels were sold to foreign users including Azerbaijan, Ukraine, Egypt, Ethiopia, India, Syria and Vietnam. In Indian service, the vessels were known as the Arnala-class and classified as corvettes - due to the poor quality of the ship's hulls and delays with refits, one of the Indian vessels was lost at sea in 1990. The Russian Navy retired their Petya-class frigates between 1988 and 1992; the ship class remains in service with the navies of several other countries.
  
 
== Media ==
 
== Media ==
''An excellent addition to the article will be video guides, as well as screenshots from the game and photos.''
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<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
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;Skins
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* [https://live.warthunder.com/feed/camouflages/?vehicle=ussr_skr_pr159 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
  
== Read also ==
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;Videos
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example,''
+
{{Youtube-gallery|XvCqay-RaPQ|'''The Shooting Range #123''' - ''War Machines'' section at 00:28 discusses the Pr. 159.}}
 +
 
 +
== See also ==
 +
''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
 
* ''reference to the series of the ship;''
 
* ''reference to the series of the ship;''
 
* ''links to approximate analogues of other nations and research trees.''
 
* ''links to approximate analogues of other nations and research trees.''
''ETC.''
 
  
== Sources ==
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== External links ==
 
''Paste links to sources and external resources, such as:''
 
''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
* ''page on ship encyclopedia;''
 
 
* ''other literature.''
 
* ''other literature.''
 +
 +
{{ShipManufacturer Krasny Metallist}}
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{{USSR frigates}}

Latest revision as of 23:25, 5 March 2023

Introducing Wiki 3.0
SKR-1
ussr_skr_pr159.png
GarageImage SKR-1.jpg
SKR-1
AB RB SB
4.3 4.3 4.3
Class:
Research:320 000 Specs-Card-Exp.png
Purchase:860 000 Specs-Card-Lion.png

Description

The Pr.159, SKR-1 is a rank V Soviet frigate with a battle rating of 4.3 (AB/RB/SB). It was introduced during Update 1.79 "Project X" when the Soviet fleet was implemented into the game.

General info

Survivability and armour

Armourfront / side / back
Main fire tower5 / 5 / 5 mm
Hull16 mm (steel)
Superstructure4 mm (steel)
Number of section5
Displacement1 050 t
Crew98 people

Being a light anti-submarine frigate, the Pr. 159 Petya-class has very little substantial armour, with just 5 mm turret armour and the 15 mm splash guard for the forward turret. While these may minimize damage caused by small calibre HE rounds and splash damage from other areas being hit, they will not protect the turrets from direct fire starting at even the size of 12.7 mm machine guns. General survivability is not much better, as the primary armament is limited to two large turrets. Losing turrets is common on the Petya and will result in your fire being halved at the least. Furthermore, the low crew count of 98 means that a very low damage threshold can be sustained on major components before the ship is destroyed. Thankfully the Petya has a few aces up its sleeve to counteract these issues. To begin with, the crew are very spaced out in the ship, meaning that you will most likely survive the first few salvoes. Secondly, because the hull has such a low freeboard for the majority of the ship, most of the machinery and ammunition is protected by the sea.

Overall the ship's survivability is below average, with its low crew and few turrets being the brunt of the issue.

Mobility

Speedforward / back
AB83 / 46 km/h
RB59 / 33 km/h

Mobility, while very similar to the SKR-7, is lacklustre especially as the twin gas turbines are gone. Starting at 51 km/h stock, the ship lags behind destroyers and most cruisers, and cannot hold a candle to the higher-rank MTBs that it might face. However, of the corvette/frigate class, the Pr. 159 has a distinct advantage, often holding a 10 km/h advantage or more over other ships of its size. These are rarely faced however, and as such, it cannot be expected that you will ever be leading the charge in matches. The turn radius of the ship is reasonable, however, the initial snap can be very deceiving when initiating a turn. One major issue when manoeuvring the Petya is the existence of the hull-mounted sonar system. This dips far below the keel of the hull and can often be caught on rocks. Special attention must be given when manoeuvring around shoals and beaches where the sonar might holdfast.

Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock ___ ___
Upgraded 83 46
RB/SB Stock ___ ___
Upgraded 59 33

Modifications and economy

Repair costBasic → Reference
AB10 310 → 12 670 Sl icon.png
RB14 974 → 18 403 Sl icon.png
Total cost of modifications286 000 Rp icon.png
427 000 Sl icon.png
Talisman cost2 200 Ge icon.png
Crew training250 000 Sl icon.png
Experts860 000 Sl icon.png
Aces1 800 Ge icon.png
Research Aces780 000 Rp icon.png
Reward for battleAB / RB / SB
230 / 440 / 100 % Sl icon.png
202 / 202 / 202 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Research:
29 000 Rp icon.png
Cost:
43 000 Sl icon.png
460 Ge icon.png
Mods new ship rudder.png
Rudder Replacement
Research:
16 000 Rp icon.png
Cost:
24 000 Sl icon.png
250 Ge icon.png
Mods new ship screw.png
Propeller Replacement
Research:
14 000 Rp icon.png
Cost:
21 000 Sl icon.png
220 Ge icon.png
Mods new ship engine.png
Engine Maintenance
Research:
47 000 Rp icon.png
Cost:
70 000 Sl icon.png
740 Ge icon.png
Mods ship damage control crew.png
Damage Control Division
Research:
29 000 Rp icon.png
Cost:
43 000 Sl icon.png
460 Ge icon.png
Mods ship fire control crew.png
Fire Division
Research:
16 000 Rp icon.png
Cost:
24 000 Sl icon.png
250 Ge icon.png
Mods engine smoke screen system.png
Smokescreen
Research:
16 000 Rp icon.png
Cost:
24 000 Sl icon.png
250 Ge icon.png
Mods ship anti fragmentation protection.png
Shrapnel Protection
Research:
14 000 Rp icon.png
Cost:
21 000 Sl icon.png
220 Ge icon.png
Mods new ship pumps.png
New Pumps
Research:
47 000 Rp icon.png
Cost:
70 000 Sl icon.png
740 Ge icon.png
Mods tank ammo.png
76mm_ussr_ak726_navy_HE_radio_fuse_ammo_pack
Research:
16 000 Rp icon.png
Cost:
24 000 Sl icon.png
250 Ge icon.png
Mods ship rangefinder.png
Improved Rangefinder
Research:
14 000 Rp icon.png
Cost:
21 000 Sl icon.png
220 Ge icon.png
Mods new main caliber turrets.png
Primary Armament Targeting
Research:
14 000 Rp icon.png
Cost:
21 000 Sl icon.png
220 Ge icon.png
Mods rocket launcher.png
Rocket Launcher
Research:
14 000 Rp icon.png
Cost:
21 000 Sl icon.png
220 Ge icon.png

Armament

Primary armament

2 х Turret2 x 76 mm/59 AK-726 automatized artillery system
Ammunition976 rounds
Vertical guidance-10° / 85°
Main article: AK-726 (76 mm)

The primary armament of the Pr. 159 is where the ship shines. It is armed with a pair of 76 mm AK-726 semi-automatic gun turrets. Each of these turrets contains two guns firing a total of 90 rounds per minute. This rate of fire allows for the ship to dismantle any opponent vessel in seconds, from MTBs all the way up to destroyer leaders and light cruisers. These guns have very nice post-penetration effects on targets lacking armour and can be extremely dangerous should you sneak up on someone. This rate of fire comes at a price, however, and that price is two-fold. Firstly, the guns overheat quickly, barrages tend to be limited and the guns must be watched for overheat. Secondly, the shells have a relatively short range and their effectiveness drops off quickly beyond 5 km when shells begin to miss and fire arcs become too great to regularly hit the target.

Penetration statistics
Ammunition Type of
warhead
Penetration @ 0° Angle of Attack (mm)
100 m 1,000 m 2,000 m 3,000 m 4,000 m 5,000 m
HE OF-62 HE* 10 10 10 10 10 10
HE ZS-62 HE-VT 11 11 11 11 11 11
Shell details
Ammunition Type of
warhead
Velocity
(m/s)
Projectile
mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Explosive mass
(TNT equivalent) (g)
Ricochet
0% 50% 100%
HE OF-62 HE* 980 5.9 0 0.1 616 79° 80° 81°
Proximity-fused shell details
Ammunition Type of
warhead
Velocity
(m/s)
Projectile
mass (kg)
Fuse delay
(m)
Fuse sensitivity
(mm)
Arming
distance (m)
Trigger
radius (m)
Explosive mass
(TNT equivalent) (g)
Ricochet
0% 50% 100%
HE ZS-62 HE-VT 980 5.9 0 0.1 400 8 739.2 79° 80° 81°

Additional armament

Setup 15 x 400 mm SET-40 torpedo
Setup 2192 x RBU-2500 mortar
Setup 35 x 400 mm SET-40 torpedo
4 x RBU-2500 mortar
Main articles: SET-40 (400 mm), RBU-2500

The Pr. 159 is armed with a single quintuple 406 mm torpedo launcher armed with the SET-40 lightweight anti-submarine torpedo. The launcher has very good launch angles and five torpedoes are quite reasonable however that is where the praise ends. The torpedoes have only one operational setting, with no option for upgrades and are slow. At 54 km/h, a cruiser with keen eyes can outrun these torpedoes and with an 8-km range, they are not going to reach much past the effective range of your turrets. Worse still, the torpedoes have a meagre 80 kg warhead, which will not destroy ships larger than a corvette in one hit. These torpedoes have limited use in surprising unsuspecting captains should you face something armoured such as a heavy cruiser, and can be used should the main battery fall silent, however, they are unlikely to destroy anything without multiple hits and must be used at a range where they cannot be avoided easily.

The Petya rounds off the armament with four RBU-2500 anti-submarine rocket launchers, each carrying 12 rockets to total 48. As being rockets they have a limited effective engagement range, high arcs of fire and are very hard to aim in conjunction with primary weapons, however should a small boat decide to get too close or should you decide to engage a target at point-blank range, the barrage of 26 kg warheads smashing into the superstructure and hull of the hostile ship will almost certainly cripple it, if not outright sink it.

Radar

Red box: MR-302 Rubka air/surface search radarBlue box: MR-102 Turel fire control radar

The Pr. 159 has access to search and targeting radar for the 76 mm AK-726 semi-automatic gun turrets, making anti-air capabilities much more advanced than most of the ships it will face at its br. The location of the radars are in a similar manner they are located in the Pr. 35 (bridge is the main difference between both). However, this does not affect the performance of said radars. It is equipped with an MR-302 Rubka air/surface search radar and an MR-105 Turel fire control radar, both available in most of the cold war soviet anti submarine frigates. The MR-302 is located on top of the main mast with two Don navigation radar right below it located at port and starboard from the mast. MR-105 is located on top of the bridge (refer to picture). Enemy pilots do not account the existence of this radars as they are uncommon in game, use surprise to your advantage. Targeting radar makes engaging enemy planes an easier task with standard HE ammo. When using HE-VT, AA engagements will be finished in couple seconds. Be aware of the distance as in engagements with planes in distances smaller than 1 km, weapons tend to overshoot even when following target indicator. Engage air targets as soon as you see them in a relatively close distance (2-10 km). Proximity shells will make this task easier.

Petya's radar display. Dark green: within targeting radar angle
Light green: targeting radar dead zone
MR-302 Rubka - Air/surface Search Radar
Maximum
Detection
Range
Guaranteed
Detection
Range
Max Azimuth
Scan Angle
Max Elevation
Scan Angle
120,000 10,000 m ±180° 0°/+75°
MR-105 Turel - Fire Control Radar
Maximum
Tracking
Range
Minimum
Tracking
Range
Azimuth Tracking
Angle
Elevation Tracking
Angle
10,000 m 100 m ±155° 0°/+80°

Usage in battles

The Petya excels in close-quarter brawling with anything its shells can penetrate, especially in dispatching torpedo boats and early destroyers. This vehicle is heavily reliant on both map and BR; it will crush enemy ships in a downtier within seconds, but against ships at its BR and above it will struggle heavily even within its gun range. It is best not to spawn this vehicle on maps consisting of the open ocean unless you are left with no choice; due to its limited range the Petya needs to exploit cover in order to close the gap without being targeted by guns with over twice the range. Critically, captains should avoid the wide-open ocean, as they will draw fire from targets that they cannot engage themselves. Because the guns only fire HE, captains of the Petya should avoid engaging cruisers, as they may find penetrating and damaging the components of cruisers difficult even in close quarters.

Captains of the Petya should attempt to close the distance on any target and engage with their guns within 5 km for maximum effectiveness, reserving torpedoes and rockets for extreme close quarters or emergencies. Prior to unlocking HE-VT, Petya lacks in anti air capabilities but thanks to targeting radar, Petya can engage targets with relative ease. The HE-VT once unlocked should be the primary armament, due to a slightly greater explosive mass and better effectiveness against planes. The rocket launcher has no anti submarine use in game but provides a knock-out with a single rocket when fired at a small vessel, it can also be used as rudimentary artillery to fire above obstacles due to the flying arc. They can be used to engage targets at distance but the recommended engagement distance should be at 3 km, this is to compensate travelling speed. Torpedoes, while limited firing arc, are your main weapon against heavily armoured vessels like HMS Belfast, two of them will disable the cruiser. Rockets can also be used against them since, thanks to the high explosive power, they can lit on fire all cruisers when fired at engine compartment. They will also cripple or destroy main weaponry that the 76 mm cannons may not penetrate.

Pros and cons

Pros:

  • Very good rate of fire for its calibre
  • No blind spots for turrets
  • Can deploy rocket launcher (after research)
  • Has a large amount of rockets

Cons:

  • Lacks dedicated AA guns
  • No hull armour
  • Rockets have a slow flight speed

History

The Pr. 159, NATO reporting name Petya-Class, was a class of patrol & anti-submarine warfare frigates built for the Soviet Navy during the 1960s. The ships were the first Soviet vessels with gas turbine propulsion and were optimised for anti-submarine warfare. In total, 54 vessels were built, including some that remain in service today with foreign navies.

The Petya-class displaced 1,150 tons full load and had a crew complement of 90. The ships were the first class of ships in Soviet service to be fitted with a gas turbine (CODAG) propulsion system, composed of a single diesel engine for cruising and two gas turbines for additional speed. Being designed for anti-submarine warfare, the ships were armed with extensive anti-submarine armament, including four RBU-6000 anti-submarine rocket launchers and a quintuple 406 mm (16-inch) torpedo tube mount capable of firing guided anti-submarine torpedoes. The ships were also fitted with a full sonar suite for detecting submarines. Finally, two 76 mm AK-726 automatic guns were fitted, one fore and aft, for multipurpose anti-air and anti-ship capabilities.

In total, 54 ships were at the Kaliningrad and Khabarovsk shipyards; some ships were retained for service with the Soviet navy, while numerous other vessels were sold to foreign users including Azerbaijan, Ukraine, Egypt, Ethiopia, India, Syria and Vietnam. In Indian service, the vessels were known as the Arnala-class and classified as corvettes - due to the poor quality of the ship's hulls and delays with refits, one of the Indian vessels was lost at sea in 1990. The Russian Navy retired their Petya-class frigates between 1988 and 1992; the ship class remains in service with the navies of several other countries.

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See also

Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:

  • reference to the series of the ship;
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Red Metallist Shipyard (Красный металлист)
Submarine Chasers 
Project 122bis  MPK-163 · MPK Pr.122bis
Project 201M  MPK Pr.201M
Frigates 
Project 159  SKR-1

USSR frigates
Pr. 50  Rosomacha · Yenot
Pr. 159  SKR-1
Pr. 35  SKR-7
Pr. 1331M  MPK Pr.1331M