Difference between revisions of "Pr.183 BM-21"
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== Usage in battles == | == Usage in battles == | ||
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| + | A common characteristic of PT boats is their rather unprotected hull and superstructure, this is especially true for Pr.183 due to the size and weight limits for PT boats; as mentioned on the survivability section, the ship only has 10 mm of wood for the hull and 4 mm steel for turret and command tower, anything larger than .30 caliber has very high odds to penetrate the ship itself, let alone direct hits from cannons. So staying away from heated battlefield is extremely crucial for its survival. This also being limited by the rather small crew pool at only 16 crews onboard; chances are the ship might still be afloat but the crews will be knocked-out instead. | ||
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| + | But there not only bad news for the ship, while Egyptian removed a twin 25 mm autocannon turret and torpedo tubes onboard, they installed a BM-21 MLRS instead; the weapon itself has been famous of being the hailstone of Soviet/Warsaw Pact countries with large coverage to grouped targets, but firing them separately is also viable and this will be the case for Pr.183. A single 122 mm rocket projectile with 10 kg of TNT equivalent explosives is certainly a nightmare for light ships as this will mean a likely one-hit-kill for them, larger ships up to destroyers could even fall victim of it as it has a 40-shot salvo and this could trigger extensive damages to either exposed components or overpressuring turrets, disabling the ship or even send them straight to the Davy Jone's chest. Although having one less autocannon turret from its base model, the remaining 2M-3 twin mount 25 mm autocannon has rather high penetration for its caliber and 120 shots per load can also make sure it can cause havoc to unnoticed ships that showed their sides or ships with rear-mounted weaponry. To make sure the maximum efficiency of the ship, it is suggested to play it as a "guerrilla-on-water" where players can utilize its sufficient mobility to maneuver around inland channels where it can take cover behind terrain, then strike out for a sudden attack for enemy ships; alternatively taking cover and use the rockets for taking down unnoticed enemies. Making it a small yet formidable enemy to be dealt with. | ||
=== Pros and cons === | === Pros and cons === | ||
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* 40 rocket salvos with high explosive content, extremely lethal to smaller vessels | * 40 rocket salvos with high explosive content, extremely lethal to smaller vessels | ||
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'''Cons:''' | '''Cons:''' | ||
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* Relative small crew pool for replacement | * Relative small crew pool for replacement | ||
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== History == | == History == | ||
Revision as of 10:50, 9 February 2023
| This page is about the premium Soviet motor gun boat Pr.183 BM-21. For the regular version, see Pr.183. |
Contents
Description
The Pr.183 BM-21 is a premium gift rank III Soviet motor gun boat with a battle rating of 3.0 (AB/RB/SB). It was introduced in Update "Apex Predators" as a reward for Battle Pass: Season X, "Royal Guard".
The Pr.183 BM-21 is a non-standard Project 183 PT boat (AKA P-6 in NATO code) exported to Egypt with its rear-turret and torpedoes removed for the installation of a BM-21 MLRS. The major difference between the Pr.183 and the Pr.183 BM-21 is the BM-21 Grad 122 mm MLRS launcher on the aft platform in place of the turret; as well as a new radar replacing the original, dome-like one. The 40 rockets onboard will make sure light vessels will meet a swift end from the bombardment of 122 mm rockets from distance.
General info
Survivability and armour
Being one of the last PT boats built by Soviet Union, the ship itself is rather unprotected where the hull is still made of wood, only the 25 mm autocannon turret and the superstructure are made with 4 mm hardened steel. Any projectile larger than rifle-calibre will have no problem penetrating the mere 4 mm of steel, let alone the hull itself with only 10 mm. A near-miss from higher calibre cannons can do serious damage to the ship itself.
Mobility
The ship is propelled by four M50-T diesel engines with 4 shafts, propelling the ship at up to 70 km/h (37.8 kt). This ensures the overall flexibility of the ship to retreat from heated battlefield or navigating through complicated channels of water.
| Mobility Characteristics | |||
|---|---|---|---|
| Game Mode | Upgrade Status | Maximum Speed (km/h) | |
| Forward | Reverse | ||
| AB | |||
| Upgraded | 109 | 44 | |
| RB/SB | |||
| Upgraded | 81 | 33 | |
Modifications and economy
2 × 100 / 150 / 50 % 2 × 154 / 154 / 154 % | Seakeeping | Unsinkability | Firepower | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Armament
Primary armament
With the aft turret and torpedo tubes removed, the only main weapon onboard is the front 25 mm 2M-3 twin mount autocannon. While the ammo count and the penetration of the cannon is more than enough to tear down small vessels, this is the only primary armament: keep the turret in operation at all cost to maximum its efficiency.
Special armament
Commonly known as the "Grad" (Hailstone), the 122 mm BM-21 rockets, which are one of the most common export Soviet weapons, are now installed as a MLRS on Pr.183 instead of being on Ural trucks; the launcher itself could traverse 360° thanks to its clearance to the superstructure. While the original intention of MLRS on an attack boat is purely for coastal bombardments against enemy ground targets, if enemy boats or auxiliary ships i.e minelayers or destroyer escorts are within its range, all the 40 rockets onboard with almost 10 kg TNT equivalent of explosive contents will certainly give them a bad day, either from being detonated on impact or critically damaged by the salvo.
Usage in battles
A common characteristic of PT boats is their rather unprotected hull and superstructure, this is especially true for Pr.183 due to the size and weight limits for PT boats; as mentioned on the survivability section, the ship only has 10 mm of wood for the hull and 4 mm steel for turret and command tower, anything larger than .30 caliber has very high odds to penetrate the ship itself, let alone direct hits from cannons. So staying away from heated battlefield is extremely crucial for its survival. This also being limited by the rather small crew pool at only 16 crews onboard; chances are the ship might still be afloat but the crews will be knocked-out instead.
But there not only bad news for the ship, while Egyptian removed a twin 25 mm autocannon turret and torpedo tubes onboard, they installed a BM-21 MLRS instead; the weapon itself has been famous of being the hailstone of Soviet/Warsaw Pact countries with large coverage to grouped targets, but firing them separately is also viable and this will be the case for Pr.183. A single 122 mm rocket projectile with 10 kg of TNT equivalent explosives is certainly a nightmare for light ships as this will mean a likely one-hit-kill for them, larger ships up to destroyers could even fall victim of it as it has a 40-shot salvo and this could trigger extensive damages to either exposed components or overpressuring turrets, disabling the ship or even send them straight to the Davy Jone's chest. Although having one less autocannon turret from its base model, the remaining 2M-3 twin mount 25 mm autocannon has rather high penetration for its caliber and 120 shots per load can also make sure it can cause havoc to unnoticed ships that showed their sides or ships with rear-mounted weaponry. To make sure the maximum efficiency of the ship, it is suggested to play it as a "guerrilla-on-water" where players can utilize its sufficient mobility to maneuver around inland channels where it can take cover behind terrain, then strike out for a sudden attack for enemy ships; alternatively taking cover and use the rockets for taking down unnoticed enemies. Making it a small yet formidable enemy to be dealt with.
Pros and cons
Pros:
- Extremely lethal twin 25 mm turret with high ammo count and devastating firepower
- Small and nimble for navigating through inland channels
- 40 rocket salvos with high explosive content, extremely lethal to smaller vessels
Cons:
- Equipped with only one turret and its rocket launchers
- Extremely fragile to gunfire
- The size of the rocket launcher could trigger a detonation and lead to complete loss
- Relative small crew pool for replacement
History
As one of the last PT boat class built by Soviet Union, the Project 183 Bolshevik Class PT Boat has been one of the major export vessel of the Union to allied countries including PLAN (which they later built domestically as the Type 6602 under the June 4th Agreement), KPAN and notably, Egyptian Navy.
During the Nasir, the President of Egypt at the time, was still on the chair, the country saw better relationship with the Soviet Union which the latter provided a large amount of aids and military equipment ranging from assault rifles up to jet fighters, the abundant Project 183 was also among one of the sales to Egypt with around 46 of them delivered to their navy. Although being already obsolete by the time of late 1960s with Israel which led to some losses to the Project 183s (2 by Eilat, on July 1967), the Egypt Navy revenged by sinking Eilat on 21st, October 1967 and claiming the very first AShM kill in war history using the heavily-modified Project 183R with P-15 missiles.[1]
While the Egyptian Navy maintained a fairly large fleet of Project 183s, 12 of such boats were then modified to carry BM-21 Grad MLRS at the cost of some onboard armaments; these ships would have likely been decommissioned by late 20th Century and very scarce images left marks of their existence.
Media
- Videos
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
| USSR boats | |
|---|---|
| Motor torpedo boats | D-3 · G-5 · G-5 (ShVAK) · Pr.123-bis · Pr.123K (A-10bis) · Pr.123K · Pr.183 |
| Motor gun boats | TKA-412 · MO-4 · OD-200 · Pr.253L · Pr.183 BM-21 · Ya-5M |
| Motor torpedo gun boats | Pr. 206 · Pr.206-M · MPK Pr.12412 · MPK Pr.12412P · MPK Pr.11451 |
| Gunboats | Groza |
| Armoured gun boats | BMO · MBK-161 early · MBK-161 late · MBK pr.186 · MBK pr.186 (MK 85) · Pr.1124 early · Pr.1124 late · Pr.1124 MLRS |
| Pr.191 · Pr.191M · Pr.1204 · Pr.1204 late | |
| USSR premium ships | |
|---|---|
| Motor torpedo boats | G-5 (ShVAK) · Pr.123K (A-10bis) |
| Motor gun boats | TKA-412 · Pr.183 BM-21 · Ya-5M |
| Motor torpedo gun boats | MPK Pr.12412P |
| Armoured gun boats | MBK-161 early · MBK pr.186 (MK 85) · Pr.1124 MLRS · Pr.1204 |
| Sub-chasers | MPK Pr.122bis |
| Frigates | Rosomacha |
| Destroyers | Kerch · Ryany · Leningrad · Stroyny · Smelyi · Neustrashimy · Blagorodnyy |
| Light cruisers | Murmansk · Kerch · Zheleznyakov |
| Battleships | Marat |
