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S-51

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S-51 (Stock)

AnnoS-51.png
Totals
1400000 Precio
350 Puntos de impacto
50.12 / 52 kgPeso
Crew
  1. Comandante
Armor
60/60/60Blindaje del chasis(frontal/laterales/trasero, mm)
0/0/0Blindaje de la torreta(frontal/laterales/trasero, mm)
Maneuver
500 CVPotencia del motor
30 km/hLímite de velocidad
18 grados/sVelocidad de rotación
Firepower
950 Daño de proyectil estándar
88 mmPerforación estándar del proyectil
22.9 Tiempo en completar carga
12 grados/sVelocidad de rotación torreta
Communication
360 mCampo de vista
360 mAlcance de radio
VII
S-51
1400000
Desarrollado por la Oficina Central de Artillería Grabin en el otoño de 1943. El S-51 pasó con éxito las pruebas en la primavera de 1944, pero nunca se produjo en serie.

Often nicknamed by the players as "The Unicorn" for the impressive long barrel gun it holds when aiming upwards, out of the box, it has the SU-14-1's upgraded gun. It's rather slow when you first get it, and performance will be sluggish, but once upgraded, its mobility kicks in. Most players agree that the S-51 is superior to the SU-14-1 for these reasons: its mobility (especially when relocating to avoid becoming a counter-battery target), its agility in running from danger, and faster traverse speeds in switching between targets. It also has a smaller profile than the SU-14, which helps it with camouflage.

S-51 starts with 152 mm BR-2 Howitzer, which considering its repositioning in 8.6, makes it comparable to the old SU-8. However, the second gun, the 203 mm B-4 is the cannon that your enemies will fear you for. It gives the S-51 the ability to deal more alpha damage than any other Tier 7 SPG, and even deal one-shots to Tier 8 heavy tanks. On the downside, it has a very slow reload time and it is rather inaccurate. Its large splash radius will nonetheless ensure that your opponent receives at least some kind of damage. The 203 mm B-4 canon can only carry 12 shells, which in most cases is enough thanks to the low rate of fire. It can also fire AP shells, which some people may find handy in close quarters combat for their high damage potential and good penetration.


S-51

Stock

Nivel Cañón Peso (t) Penetración media (mm) Cadencia de tiro Dispersión a 100 m Tiempo en apuntar
gun VII 152mm BR-2 5720 88/246/90 950/750/950 2.62 0.76 7
Nivel Motor Peso (t) Potencia del motor (c.v.) Posibilidad de incendio tras disparo
engine VI V-2K 750 500 15
Nivel Suspensión Peso (t) Límite de carga Velocidad de giro (gra/s)
chassis VI S-51 12500 52 18
Nivel Radio Peso (t) Alcance de radio (m)
radio V 10R 0 360

T-100Z

Recon

Nivel Cañón Peso (t) Penetración media (mm) Cadencia de tiro Dispersión a 100 m Tiempo en apuntar
gun VII 152mm BR-2 5720 88/246/90 950/750/950 2.62 0.76 7
Nivel Motor Peso (t) Potencia del motor (c.v.) Posibilidad de incendio tras disparo
engine VI V-2-10 750 520 15
Nivel Suspensión Peso (t) Límite de carga Velocidad de giro (gra/s)
chassis VII S-51 Bis 12500 52.5 20
Nivel Radio Peso (t) Alcance de radio (m)
radio IX 12RT 0 625

S-51A

Speed

Nivel Cañón Peso (t) Penetración media (mm) Cadencia de tiro Dispersión a 100 m Tiempo en apuntar
gun VII 152mm BR-2 5720 88/246/90 950/750/950 2.62 0.76 7
Nivel Motor Peso (t) Potencia del motor (c.v.) Posibilidad de incendio tras disparo
engine VII V-16 750 600 15
Nivel Suspensión Peso (t) Límite de carga Velocidad de giro (gra/s)
chassis VII S-51 Bis 12500 52.5 20
Nivel Radio Peso (t) Alcance de radio (m)
radio IX 12RT 0 625

S-51M

Attack

Nivel Cañón Peso (t) Penetración media (mm) Cadencia de tiro Dispersión a 100 m Tiempo en apuntar
gun IX 203mm B-4 5200 102/260/102 1850/1450/1850 1.38 0.9 8
Nivel Motor Peso (t) Potencia del motor (c.v.) Posibilidad de incendio tras disparo
engine VII V-16 750 600 15
Nivel Suspensión Peso (t) Límite de carga Velocidad de giro (gra/s)
chassis VII S-51 Bis 12500 52.5 20
Nivel Radio Peso (t) Alcance de radio (m)
radio IX 12RT 0 625

Compatible Equipment

Antifragmentación grande
Red de camuflaje
Llenado de tanques con CO2
Óptica recubierta
Cierre de retícula mejorado
Barras de torsión clase + 5 t mejoradas
Filtro ciclónico
Barra de carga de artillería de calibre pesado
Telescopio binocular
Caja de herramientas
Compartimento de munición "húmedo" clase 2

Compatible Consumables

Extintor automático de incendios
Extintor manual de incendios
Botiquín de primeros auxilios grande
Kit de reparación grande
Aceite de préstamo-arriendo
Raciones de combate adicionales
Limitador de velocidad eliminado
Botiquín de primeros auxilios pequeño
Kit de reparación pequeño

Player Opinion

Pros and Cons

Pros:


  • Good gun range for tier VII
  • Agile and easy to relocate
  • Fast turning speed
  • Very high splash damage from the 203 mm gun will almost always ensure you´ll deal damage to enemies even if it misses
  • Excellent gun elevation and decent gun depression can hit tanks even behind some buildings or save you from tanks that get to


Cons:


  • Very narrow gun traverse
  • Very long reload time
  • Very limited ammo capacity
  • Slow aim time
  • Below average accuracy


Performance

  • Since this Artillery is researched directly from a Heavy Tank, new players that are inexperienced with artillery mechanics can find it frustrating to use due the long reload times and very low ammo capacity. Many agree that using this tank requires a mandatory use of a Large-Caliber Shell Rammer and an Enhanced gun laying Drive module.
  • When using this Artillery, it's best to relocate after a shot as the reload time is long and relocating prevents counter-battery fire from enemy artillery. The relatively good agility of the S-51 makes relocation a fairly simple task.
  • It's a good idea to have one or two AP shells. They can save you from incoming scouts that trespass into your base or severely damage Heavy tanks like the E-75 for its consistent damage (assuming you don't miss).
  • Patience is key to this Artillery; Having limited Ammo capacity, it's best to shoot if you are sure that you may be able to hit the enemy, since shooting blindly will make you run out of shells easily, you have a long reload and each shell is expensive


Early Research

  • Since it can hold the best gun, radio and engine in stock form, you don't have to get the Suspension. Your top priority will be the 203 mm gun
  • As of 8.6 engines are unique - the V-2IS has been replace for this tank.
  • Get the radio as it extends the radio range
  • Next, get the suspension; it gives you better turning speed and maneuverability and it's relatively cheap to research
  • Finally, get the Engine


Historical Info

On end of 1943, the GAU began the re-designing of mobile heavy duty self-propelled artillery systems. Ten years earlier, it was supposed to arm a platform with the 203-mm howitzer model 1931, with production planned to resume at the factory "Bolshevik" in 1944. If it succeeded, WPRA would get a mobile devastating weapon. By order of the Commissar of weapons Ustinov in November 1943, a competition to develop self-propelled guns was announced, which received the semi-official title of "Knight".

Within weeks, some preliminary drafts were presented from plant № 100 NKTP, CB Uralmash, and TsAKB. The first of them, created under the leadership of J. J. Kotin, was a self-propelled gun carriage with trailer that, in some ways, resembled the French GPF 194, but with a more powerful gun. Draft CB UZTM had two options; a 203-mm howitzer B-4 on the chassis of the KV-1S (modernized draft SAC U-19) or two 152-mm howitzers on two SU-122 chassis. Before using its gun, it was supposed to connect both chassis; preparation to firing was about 30-40 minutes, versus 20 minutes with the Kotin design. It is clear that the development of plant number 100 and UZTM won't give adequate fire support due to its technological complexity. In order to build a single prototype, only TsAKB submitted a draft SAU under the symbol "S-51". The chassis of the KV-1S was considered for the base of the S-51, but it was quickly discovered that the length of the support-surface was insufficient and needed adjustment: a modified version with 7 or 8 rollers. However, NKTP was reluctant to change its production because the amount of modifications required was relatively large, and the number of issued ACS was unlikely to be exceed several tens of units. To this end, it was decided to establish a howitzer on the chassis of an unaltered KV-1S anyways, which was not the best solution. The chassis did not undergo any major change, except for the engine. The tank turret was dismantled, and a 203-mm howitzer B-4 was mounted on the open gun-carriage. Because the weight of the 203 mm howitzer was slightly heavier than the weight of a fully-loaded turret, the full combat-load weight was almost 50 tons. Thus, it was not expected to have good mobility.

The first prototype of the S-51 entered factory tests in February 1944, conducted under the reduced program. However, interest in high powered artillery was so great that it was still not finished was transferred to ANIOP. Here, all of the major disadvantages of the S-51 were revealed. Because of the high line-of-fire when firing, the self-propelled chassis was strongly swayed by inertia and would move to a lateral displacement. The elevation angle was relatively small, and the recoil was so strong that the crew could not hold on their seats. The severe recoil, large size and weight of its projectiles, and the extreme discomfort for the crew would require the installation of a rammer/loader. In addition, the chassis of the KV-1S proved it was clearly not a good platform on which to install guns of this caliber. After comparing all the data obtained in the COD, it was felt that the S-51 still be sent to production, but to no success. First of all, the issue of using KV-1S chassis was resolved in December 1942: the required amount of modifications for heavy self-propelled guns was only possible with the serious alteration of serial machines. Another important reason was the lack of the B-4 howitzer, which was not in production-scale numbers.

In return, engineers and design bureaus TsAKB plant number 100 had developed a version of an SPG on the chassis of a heavy tank, with the installation of a 152-mm howitzer BL-2. A prototype self-propelled guns, named S-59, was made in early 1944 on May-June, and underwent range tests. There is some discrepancy in the data on the type of equipment. According to factory records, S-59 received the chassis and body from the IP-85, but according to a report on the tests, the self-propelled gun had the "improved chassis of the heavy KV tank ". However, when firing a full charge, the S-59 began to have problems similar to that of the S-51, so mass production of the unit was not raised. As a result, this direction in the development of ACS fire-power ended.

Nevertheless, the projects of heavy self-propelled guns continued to appear until the end of the war. For example, on July 29 1944, head of the Leningrad branch TsAKB Igor Ivanov presented the "technical adjustment of the IEC preliminary draft of ACS", which was supposed to use the chassis of paired T-34 tanks and the 210 mm gun BR-17 or 208 mm howitzer BL-18 . Based on a draft presented a year earlier of the proposed CB UZTM, this ACS differed by a more simple design. This development by TsAKB aroused some interest in the leadership of the People's Commissariat of Arms, but the timing of the project was not realistic; a prototype self-propelled gun was required to be submitted not later than 30 September of that year, and thus failed at the challenge of Leningrad.


Historical Gallery

Sources and External Links

USSR
Light Tanks IMS-1 IIBT-2 IIT-26 IIT-60 IITetrarch IIIBT-7 IIIBT-SV IIIM3 Light IIIT-127 IIIT-46 IIIT-70 IVA-20 IVT-50 IVT-80 IVValentine II VIMT-25 VIILTTB VIIIT-54 ltwt.
Medium Tanks IVT-28 VMatilda IV VT-34 VIA-43 VIT-34-85 VISpectre VIT-34-88 VIIA-44 VIIKV-13 VIIT-43 VIIT-44-122 VIIIObject 416 VIIIT-44 IXObjeto 430 Versión II IXT-54 XObjeto 140 XObjeto 430 XT-62A
Heavy Tanks VChurchill III VKV-1S VKV-220 VKV-1 VIKV-2 VIKV-85 VIT-150 VIIIS VIIKV-3 VIIIIS-3 VIIIIS-6 VIIIKV-5 VIIIKV-4 IXIS-8 IXST-I XIS-4 XIS-7
Tank Destroyers IIAT-1 IIISU-76 IIISU-76I IVSU-85B VSU-85 VSU-85I VISU-100 VISU-100Y VIISU-152 VIISU-100M1 VIISU-122-44 VIIIISU-152 VIIISU-101 IXObject 704 IXSU-122-54 XObject 263 XObject 268
Self-Propelled Artillery IISU-18 IIISU-26 IVSU-5 VSU-122A VISU-8 VIIS-51 VIISU-14-1 VIIISU-14-2 IX212A XObject 261
Self-Propelled Guns
USA IIT57 IIIM7 Priest IIISexton I IVM37 VM41 VIM44 VIIM12 VIIIM40/M43 IXM53/M55 XT92
UK IILoyd Gun Carriage IIISexton II IIISexton I IVBirch Gun VBishop VIFV304 VIICrusader 5.5-in. SP VIIIFV207 IXFV3805 XConqueror Gun Carriage
Germany IIG.Pz. Mk. VI (e) IIISturmpanzer I Bison IIIWespe IVPz.Sfl. IVb IVSturmpanzer II VGrille VIHummel VIIGW Panther VIIIG.W. Tiger (P) IXGW Tiger XGW Typ E
France IIRenaultBS IIILorraine39 L AM IVAMX 105 AM mle. 47 VAMX 105AM V105 leFH18B2 VIAMX 13 F3 AM VIILorraine155 50 VIIILorraine155 51 IXBat.-Châtillon 155 55 XBat.-Châtillon 155 58
USSR IISU-18 IIISU-26 IVSU-5 VSU-122A VISU-8 VIIS-51 VIISU-14-1 VIIISU-14-2 IX212A XObject 261
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