Difference between revisions of "Pr. 123bis"

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'''Pros:'''
 
'''Pros:'''
  
* Decent firepower, with effective turret placement
+
* Decent firepower with four DShK machine guns, enough to deal with most ships at its BR
* Quick turret rotation speeds
+
** Good firing angles and turret rotation speeds for the machine guns
* Great mobility and speed
+
* Extremely good mobility - very high top speed and snappy rudder response
* Torpedoes fired forward at speed
+
* Access to torpedoes which fire forwards at speed
  
 
'''Cons:'''
 
'''Cons:'''
  
* Enemies can easily destroy the ship
+
* Terrible survivability even for a MTB, with only seven crew members
* Only 2 torpedoes, which fire forwards
+
* Only has two torpedoes which aren't particularly good torpedoes either
 +
** Torpedo tubes are fixed, only being able to fire forwards
 +
* Guns tend to bob up and down when travelling at top speed, making aiming extremely difficult
  
 
== History ==
 
== History ==
''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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: 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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<!-- 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 If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: https://wiki.warthunder.com/(Ship-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable). -->
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The Pr. 123bis was the first variant of the Pr. 123 series of motor torpedo boats built by the Soviet navy during and shortly after the Second World War. Originally intended to carry a single machine gun mount, the ship was instead fitted with two 12.7 mm machine gun turrets and two heavy torpedo tubes. As well, the ships were fitted with American Packard-built engines, enabling a higher top speed. The Pr. 123bis was produced from 1942 - in total, 118 ships were built before the ship was replaced by the later Pr. 123K.
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 +
The Pr. 123bis was the first major upgrade of the original Pr. 123 design. The ship was considerably improved over the original Pr. 123 in several ways. The most noticeable addition was the installation of a second dual 12.7 mm DShK machine gun installation on top of the deckhouse, which offered a dramatic increase in firepower compared to the original Pr. 123. As well, the ship used lend-lease Packard aircraft engines imported from the United States, each developing 1200 hp. Despite the heavier engines, the ship was actually slower than the Pr. 123, as the added weight of the weapons and equipment weighed the hull down.
 +
 
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The first Pr. 123bis was built in 1942, and was accepted for production shortly thereafter. Being constructed by Plant No. 639 in Tyumen, a total of 118 ships were built. The first ship entered service in 1944, while the last boats were accepted in service in 1955. Many Pr. 123bis boats were exported to Warsaw pact allies. In service, the Pr. 123bis was complemented and succeeded by the more advanced Pr. 123K, featuring improved systems and armament. The last Pr. 123bis ships were retired in the 1970s and 1980s, replaced by more modern torpedo boats and small ships.
  
 
== Media ==
 
== Media ==
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== See also ==
 
== See also ==
 
''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
 
''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.''
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== External links ==
 
== 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;''
 
* ''encyclopedia page on the ship;''
 
* ''encyclopedia page on the ship;''

Latest revision as of 19:16, 26 March 2021

Rank 4 Japan
IJN Mikuma Pack
ussr_pr_123bis.png
GarageImage Pr. 123bis.jpg
Pr. 123bis
Research:14 000 Specs-Card-Exp.png
Purchase:55 000 Specs-Card-Lion.png
Show in game

Description

The Project 123bis is a rank II Soviet motor torpedo boat with a battle rating of 2.3 (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
Hull4 mm (steel)
Superstructure4 mm (steel)
Number of section3
Displacement21 t
Crew7 people
X-Ray view of the Pr. 123bis showing key components that are prone to be damaged when taking enemy fire.

The Pr. 123bis doesn't have any armour in the game. When under fire, it is almost certain that an opponent will disable your engines and/or set you on fire (see image on the right). However, you will very rarely be destroyed due to an ammunition explosion.

Mobility

Speedforward / back
AB125 / 45 km/h
RB89 / 32 km/h

The Pr. 123bis can reach speeds over 120 km/h in AB and around 90 km/h in RB and SB. Backwards, the Pr. 123bis can reach -45km/h, so there should be no trouble reaching strategic points first or at the same time as the lighter boats. The Pr. 123bis turns very quickly, a tactic which should be used to flank opponents and destroy them with machine guns. Lastly, it is unwise to come to a full stop, due to the fact the ship becomes a "sitting duck", easy to pick off by enemy ships or aircraft.

Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock ___ ___
Upgraded 125 45
RB/SB Stock ___ ___
Upgraded 89 32

Modifications and economy

Repair costBasic → Reference
AB750 → 924 Sl icon.png
RB790 → 974 Sl icon.png
Total cost of modifications13 880 Rp icon.png
32 600 Sl icon.png
Talisman cost860 Ge icon.png
Crew training16 000 Sl icon.png
Experts55 000 Sl icon.png
Aces320 Ge icon.png
Research Aces250 000 Rp icon.png
Reward for battleAB / RB / SB
60 / 90 / 100 % Sl icon.png
130 / 130 / 130 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Research:
920 Rp icon.png
Cost:
2 200 Sl icon.png
130 Ge icon.png
Mods new ship rudder.png
Rudder Replacement
Research:
780 Rp icon.png
Cost:
1 800 Sl icon.png
110 Ge icon.png
Mods new ship screw.png
Propeller Replacement
Research:
1 200 Rp icon.png
Cost:
2 800 Sl icon.png
160 Ge icon.png
Mods new ship engine.png
Engine Maintenance
Research:
1 100 Rp icon.png
Cost:
2 600 Sl icon.png
150 Ge icon.png
Mods ship tool kit.png
Tool Set
Research:
920 Rp icon.png
Cost:
2 200 Sl icon.png
130 Ge icon.png
Mods manual ship extinguisher.png
Fire Protection System
Research:
780 Rp icon.png
Cost:
1 800 Sl icon.png
110 Ge icon.png
Mods engine smoke screen system.png
Smokescreen
Research:
780 Rp icon.png
Cost:
1 800 Sl icon.png
110 Ge icon.png
Mods new ship pumps.png
New Pumps
Research:
1 100 Rp icon.png
Cost:
2 600 Sl icon.png
150 Ge icon.png
Mods tank ammo.png
12mm_dshk_navy_he_ammo_pack
Research:
920 Rp icon.png
Cost:
2 200 Sl icon.png
130 Ge icon.png
Mods tank ammo.png
12mm_dshk_navy_ap_ammo_pack
Research:
780 Rp icon.png
Cost:
1 800 Sl icon.png
110 Ge icon.png
Mods new main caliber turrets.png
Primary Armament Targeting
Research:
1 200 Rp icon.png
Cost:
2 800 Sl icon.png
160 Ge icon.png
Mods depth charge.png
Depth Charges
Research:
1 200 Rp icon.png
Cost:
2 800 Sl icon.png
160 Ge icon.png
Mods ship art support.png
Artillery Support
Research:
1 100 Rp icon.png
Cost:
2 600 Sl icon.png
150 Ge icon.png
Mods torpedo.png
Torpedo Mode
Research:
1 100 Rp icon.png
Cost:
2 600 Sl icon.png
150 Ge icon.png

Armament

Primary armament

2 х Turret2 x 12.7 mm DShK machine gun
Ammunition2000 rounds
Belt capacity50 rounds
Fire rate600 shots/min
Vertical guidance-10° / 60°
Main article: DShK (12.7 mm)

Primary armament composes of two, dual mounted DShK heavy machine gun turrets with one located at the stern and the other at the centre of the vessel just above and behind the bridge. Note that the turret at the stern is obstructed when pointed towards the bow due to the other turret therefore somewhat restricting fire coverage. The turret just behind the bridge has near 360° though it is slightly obstructed by the mast when pointing towards the bow.

The DShK 12.7 mm guns provide good firepower and rate of fire against similarly sized ships and somewhat larger ships thanks to its heavy calibre. They have an ammunition capacity of 1,000 rounds with reloads taking ~4.7 seconds. Available belts to research include the high explosive incendiary (HEI) and armour piercing incendiary tracer (APIT) rounds.

Additional armament

Setup 12 x 450 mm wet-heating 45-36NU torpedo
Setup 26 x BM-1 small depth charge
Setup 32 x 450 mm wet-heating 45-36NU torpedo
6 x BM-1 small depth charge

The Pr. 123bis carries two 450 mm wet-heating 45-36NU torpedoes. They have a range of 3 km at a speed of 78 km/h or a range of 6 km at 73 km/h with the Torpedo Mode module installed. They are placed at the bow of the boat and fired out already at speed, so you can surprise your opponents with your torpedoes, unlike early American boats, which simply throw the torpedoes to their sides.

Be careful with your torpedoes! Due to torpedoes being fired out of their tubes at an upwards angle, this means that your torpedoes might over-shoot (literally) any boats which are passing right in front of the Pr. 123bis.

The Pr. 123bis can carry 6 x BB-1 depth charges, which can be used as timed mines to damage/destroy tougher enemies. You can place depth charges around a capture point if you get there first, or in front of an enemy.

Remember to set your Depth Charge activation time before battle, if you carry depth charges. The default option of 3 seconds is too short to be useful, so it is advised to set it to something between 5-8 seconds to keep your options open.

Usage in battles

The Pr. 123bis is one of the first Russian boats that get decent firepower, which can destroy its opponents very quickly. Moreover, it gets two torpedoes, which are fired forwards at speed (can be an advantage, but also a disadvantage). All of that weaponry is placed on a motor boat which can reach very high speeds. It's a boat that will help you grind out USSR rank I fleet.

The Pr. 123bis strikes a balance between speed and weaponry. At its low battle rating, the two dual 12.7 mm machine guns reliably destroy all light boats, experiencing difficulty only in a full up-tier. For the most part, the Pr. 123bis should be used as a flanker. Your machine guns destroy compartments with 3-5 bursts, and if you get the first shot on most of your opponents, they are most likely going to die very soon after. However, if you meet tougher opponents, it is viable to simply cross the map around the flank, (ignoring the lighter boats) while the opponents are focused on their front, and fire your torpedoes at their sides (best done when up close and personal).

As a rule of thumb, you should never remain stationary. The Pr. 123bis doesn't have any armour, and all other boats at its battle rating can kill it, so to make it much more difficult for the opponents, try to stay at your top speed and avoid head-on encounters. Although, you can still handle some threats from the sides because your guns' rotation speeds are very fast.

Pros and cons

Pros:

  • Decent firepower with four DShK machine guns, enough to deal with most ships at its BR
    • Good firing angles and turret rotation speeds for the machine guns
  • Extremely good mobility - very high top speed and snappy rudder response
  • Access to torpedoes which fire forwards at speed

Cons:

  • Terrible survivability even for a MTB, with only seven crew members
  • Only has two torpedoes which aren't particularly good torpedoes either
    • Torpedo tubes are fixed, only being able to fire forwards
  • Guns tend to bob up and down when travelling at top speed, making aiming extremely difficult

History

The Pr. 123bis was the first variant of the Pr. 123 series of motor torpedo boats built by the Soviet navy during and shortly after the Second World War. Originally intended to carry a single machine gun mount, the ship was instead fitted with two 12.7 mm machine gun turrets and two heavy torpedo tubes. As well, the ships were fitted with American Packard-built engines, enabling a higher top speed. The Pr. 123bis was produced from 1942 - in total, 118 ships were built before the ship was replaced by the later Pr. 123K.

The Pr. 123bis was the first major upgrade of the original Pr. 123 design. The ship was considerably improved over the original Pr. 123 in several ways. The most noticeable addition was the installation of a second dual 12.7 mm DShK machine gun installation on top of the deckhouse, which offered a dramatic increase in firepower compared to the original Pr. 123. As well, the ship used lend-lease Packard aircraft engines imported from the United States, each developing 1200 hp. Despite the heavier engines, the ship was actually slower than the Pr. 123, as the added weight of the weapons and equipment weighed the hull down.

The first Pr. 123bis was built in 1942, and was accepted for production shortly thereafter. Being constructed by Plant No. 639 in Tyumen, a total of 118 ships were built. The first ship entered service in 1944, while the last boats were accepted in service in 1955. Many Pr. 123bis boats were exported to Warsaw pact allies. In service, the Pr. 123bis was complemented and succeeded by the more advanced Pr. 123K, featuring improved systems and armament. The last Pr. 123bis ships were retired in the 1970s and 1980s, replaced by more modern torpedo boats and small ships.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

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;
  • links to approximate analogues of other nations and research trees.

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • encyclopedia page on the ship;
  • other literature.


USSR boats
Motor torpedo boats  D-3 · G-5 · G-5 TKA 106 · Pr. 123bis · Pr. 123K (A-11) · Pr. 123K "Komsomolets" · Pr.183
Motor gun boats  G-5 (ShVAK) · MO-4 · OD-200 · Ya-5M
Motor torpedo gun boats  Pr. 206 · Pr. 206M · MPK pr. 12412
Gunboats  Groza
Armoured gun boats  BMO · MBK-161 (1943) · MBK-161 (1944) · MBK pr.186 · MBK pr.186 (MK 85) · Pr.1124 (1940) · Pr.1124 (1945) · Pr.1124 MLRS
  Pr.191 · Pr.191M · Pr. 1204 · Pr. 1204 late