ST-I

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ST-I

Icon
USSR Heavy Tank Tier IX
Battle Tiers
123456789101112
Totals
Cost 3,561,000  Credits
Hit Points 1,8001,900 HP
Weight Limit 57.7/58.961.001/63.5 t
Crew
Commander (Radio Operator)
Gunner
Driver
Loader
Loader
Mobility
Engine Power 650700 hp
Speed Limit 40/13 km/h
Traverse 2426 deg/s
Power/Wt Ratio 11.2711.48 hp/t
Pivot NoNo
Armor
Hull Armor 140/140/100 mm
Turret Armor170/170/160250/160/160 mm
Armament
Damage 292.5-487.5330-550 HP
Penetration 131-219201-335 mm
Rate of Fire
5100% crew: 5.21 rpm
+ Vents: 5.33 rpm
+ BiA : 5.45 rpm
+ Food: 5.69 rpm
4.51100% crew: 4.7 rpm
+ Vents: 4.81 rpm
+ BiA : 4.92 rpm
+ Food: 5.13 rpm
r/m
Accuracy
0.46100% crew: 0.44 m
+ Vents: 0.43 m
+ BiA : 0.42 m
+ Food: 0.4 m
0.38100% crew: 0.36 m
+ Vents: 0.36 m
+ BiA : 0.35 m
+ Food: 0.33 m
m
Aim time
3.4100% crew: 3.26 s
+ Vents: 3.19 s
+ BiA : 3.12 s
+ Food: 2.99 s
3.4100% crew: 3.26 s
+ Vents: 3.19 s
+ BiA : 3.12 s
+ Food: 2.99 s
s
Turret Traverse
22100% crew: 22.94 deg/s
+ Vents: 23.46 deg/s
+ BiA : 23.98 deg/s
+ Food: 25.02 deg/s
18100% crew: 18.77 deg/s
+ Vents: 19.2 deg/s
+ BiA : 19.62 deg/s
+ Food: 20.47 deg/s
deg/s
Gun Arc 360°
Elevation Arc -8°/+16°-8°/+16°
Ammo Capacity 3040 rounds
General
Chance of Fire 1515 %
View Range
360100% crew: 360 m
+ Vents: 367.71 m
+ BiA : 375.43 m
+ Food: 390.86 m
380100% crew: 380 m
+ Vents: 388.14 m
+ BiA : 396.29 m
+ Food: 412.57 m
m
Signal Range
440100% crew: 458.86 m
+ Vents: 469.23 m
+ BiA : 479.6 m
+ Food: 500.34 m
730100% crew: 761.29 m
+ Vents: 778.49 m
+ BiA : 795.7 m
+ Food: 830.11 m
m
Parent Contour-USSR-КV4.png
Child
Contour-USSR-IS-4.png189,000 XP
Research
RT-USSR-ST-I.jpg
Values are Stock - click for Top
USSR-ST I.png

The ST-I is a Soviet tier 9 heavy tank.

The design was developed at Factory No. 92 by engineers V.A. Ganin and A.S. Chasovnikov. The new tank was intended as an upgraded version of the unsatisfactory heavy tanks of that time. Existed only in blueprints.

Even when fully upgraded, The ST-I is the slowest of all Tier 9 heavy tanks available, but it's slow for a reason. It has very sturdy angled armor that is impenetrable to many Tier 8 guns and is more than a challenge to penetrate when angled properly. A properly-driven ST-I can have confidence in its armor especially when hull-down or sidescraping. The ST-I weighs only about 58 tons, almost half the weight of its predecessor, the KV-4, and thus isn't as well-suited for ramming but in turn can reach and maintain surprising speeds when pushed along by teammates. Its 122mm gun is very powerful, yet inaccurate, and should rarely be fired on the move. Shots beyond 400 meters will be difficult for the ST-I. In the hands of a player who has mastered close to mid range combat, this tank can be a nasty surprise and extremely difficult for vehicles of the same and lower tier to penetrate. When top tier the ST-I can easily lead its team to victory as a sturdy breakthrough tank coupled with formidable firepower.

The ST-I leads to the IS-4.


















Modules

Turret
TierNameArmorTraverse SpeedTraverse ArcView RangeXP CostPriceWeight
08VIII Object 701-1 0170 170/170/160 mm
22100% crew: 22.94 deg/s
+ Vents: 23.46 deg/s
+ BiA : 23.98 deg/s
+ Food: 25.02 deg/s
22100% crew: 22.94 deg/s
+ Vents: 23.46 deg/s
+ BiA : 23.98 deg/s
+ Food: 25.02 deg/s
d/s
360°
360100% crew: 360 m
+ Vents: 367.71 m
+ BiA : 375.43 m
+ Food: 390.86 m
360100% crew: 360 m
+ Vents: 367.71 m
+ BiA : 375.43 m
+ Food: 390.86 m
m
0------ 33,68033,680 Credits 13,000 13,000 kg
Guns compatible with this Turret:
Gun
TierNameAmmoDamagePenetrationShell PriceRate of FireAccuracyAim TimeElevationXP CostPriceWeight
08VIII 122 mm D-25T 30 390/390/465 HP 175/217/61 mm 1,025 Credits/12 Gold/608 Credits
5100% crew: 5.21 rpm
+ Vents: 5.33 rpm
+ BiA : 5.45 rpm
+ Food: 5.69 rpm
r/m
0.46100% crew: 0.44 m
+ Vents: 0.43 m
+ BiA : 0.42 m
+ Food: 0.4 m
m
3.4100% crew: 3.26 s
+ Vents: 3.19 s
+ BiA : 3.12 s
+ Food: 2.99 s
s
-6°/+16° --- 125,140125,140 Credits 2,590 2,590 kg
09IX 122 mm BL-9 30 390/390/465 HP 225/265/68 mm 1,025 Credits/12 Gold/608 Credits
4.55100% crew: 4.74 rpm
+ Vents: 4.85 rpm
+ BiA : 4.95 rpm
+ Food: 5.17 rpm
r/m
0.4100% crew: 0.38 m
+ Vents: 0.38 m
+ BiA : 0.37 m
+ Food: 0.35 m
m
3.4100% crew: 3.26 s
+ Vents: 3.19 s
+ BiA : 3.12 s
+ Food: 2.99 s
s
-6°/+16° 44,000 178,500178,500 Credits 2,790 2,790 kg

Turret
TierNameArmorTraverse SpeedTraverse ArcView RangeXP CostPriceWeight
09IX ST-I 0250 250/160/160 mm
18100% crew: 18.77 deg/s
+ Vents: 19.2 deg/s
+ BiA : 19.62 deg/s
+ Food: 20.47 deg/s
18100% crew: 18.77 deg/s
+ Vents: 19.2 deg/s
+ BiA : 19.62 deg/s
+ Food: 20.47 deg/s
d/s
360°
380100% crew: 380 m
+ Vents: 388.14 m
+ BiA : 396.29 m
+ Food: 412.57 m
380100% crew: 380 m
+ Vents: 388.14 m
+ BiA : 396.29 m
+ Food: 412.57 m
m
25,90025,900 61,00061,000 Credits 15,200 15,200 kg
Guns compatible with this Turret:
Gun
TierNameAmmoDamagePenetrationShell PriceRate of FireAccuracyAim TimeElevationXP CostPriceWeight
08VIII 122 mm D-25T 40 390/390/465 HP 175/217/61 mm 1,025 Credits/12 Gold/608 Credits
5.13100% crew: 5.35 rpm
+ Vents: 5.47 rpm
+ BiA : 5.59 rpm
+ Food: 5.83 rpm
r/m
0.46100% crew: 0.44 m
+ Vents: 0.43 m
+ BiA : 0.42 m
+ Food: 0.4 m
m
3.4100% crew: 3.26 s
+ Vents: 3.19 s
+ BiA : 3.12 s
+ Food: 2.99 s
s
-8°/+16° --- 125,140125,140 Credits 2,590 2,590 kg
09IX 122 mm BL-9 40 390/390/465 HP 225/265/68 mm 1,025 Credits/12 Gold/608 Credits
4.76100% crew: 4.97 rpm
+ Vents: 5.08 rpm
+ BiA : 5.19 rpm
+ Food: 5.41 rpm
r/m
0.4100% crew: 0.38 m
+ Vents: 0.38 m
+ BiA : 0.37 m
+ Food: 0.35 m
m
3.4100% crew: 3.26 s
+ Vents: 3.19 s
+ BiA : 3.12 s
+ Food: 2.99 s
s
-8°/+16° 44,000 178,500178,500 Credits 2,790 2,790 kg
10X 122 mm M62-T2 40 440/440/530 HP 258/340/68 mm 1,065 Credits/13 Gold/630 Credits
4.51100% crew: 4.7 rpm
+ Vents: 4.81 rpm
+ BiA : 4.92 rpm
+ Food: 5.13 rpm
r/m
0.38100% crew: 0.36 m
+ Vents: 0.36 m
+ BiA : 0.35 m
+ Food: 0.33 m
m
3.4100% crew: 3.26 s
+ Vents: 3.19 s
+ BiA : 3.12 s
+ Food: 2.99 s
s
-8°/+16° 59,300 335,000335,000 Credits 3,397 3,397 kg

Engine
TierNamePowerFire ChanceTypeXP CostPriceWeight
08VIII V-11 0650 650 hp 015 15 % Diesel --- 55,27055,270 Credits 0750 750 kg
09IX V-12P 0700 700 hp 015 15 % Diesel 23,000 84,00084,000 Credits 1,024 1,024 kg

Suspension
TierNameLoad LimitTraverse SpeedXP CostPriceWeight
08VIII ST-I 58.958.9 t 02424 d/s ------ 27,90027,900 Credits 11,000 11,000 kg
09IX ST-I M 63.563.5 t 02626 d/s 24,10024,100 65,00065,000 Credits 11,000 11,000 kg

Radio
TierNameRangeXP CostPriceWeight
07VII 10RK
440100% crew: 458.86 m
+ Vents: 469.23 m
+ BiA : 479.6 m
+ Food: 500.34 m
440100% crew: 458.86 m
+ Vents: 469.23 m
+ BiA : 479.6 m
+ Food: 500.34 m
m
0--- --- 18,60018,600 Credits 0100 100 kg
09IX 12RT
625100% crew: 651.79 m
+ Vents: 666.52 m
+ BiA : 681.25 m
+ Food: 710.71 m
625100% crew: 651.79 m
+ Vents: 666.52 m
+ BiA : 681.25 m
+ Food: 710.71 m
m
5,600 5,600 33,60033,600 Credits 0110 110 kg
10X R113
730100% crew: 761.29 m
+ Vents: 778.49 m
+ BiA : 795.7 m
+ Food: 830.11 m
730100% crew: 761.29 m
+ Vents: 778.49 m
+ BiA : 795.7 m
+ Food: 830.11 m
m
8,700 8,700 52,20052,200 Credits 0080 80 kg

Historical Info

The designer of this machine is Valentine Asikritovich Ganin. This man had the experience nebezyvestnom factory "Bolshevik," and from 1942 to 1945 - senior engineer of the Central Artillery Design Bureau Plant № 92 (Grabin KB). However, the more he is known as a rocketeer, in particular, to him belongs the idea of an underwater missile launch. Went to Ganina owns a total of 62 work in the field artillery, aviation, rocketry, including 24 copyright certificates. In short, people are very uneasy. Draft tank PT-I is not bad, had a number of original solutions, first applied in tank. But man does not have CB on his back and, more importantly, influential people. Plus, the tankers do not like the gunners. In general, the project zapinali and deposited in the archives, where it is stored until now.

Assistant in this project was made by a young engineer went to Ganina CHasovnikov, a graduate Baumanki. On his account just not a few inventions and achievements.

Comrade Valentine Asikritovich was an outstanding designer. Ganin with Chasovnikovym widow created a project of the tank, at what their work was based solely on their enthusiasm and dedication - the order for the design of this tank is from the state was not. To be honest, most of the best weapons, created in Russia (do not know about other countries), it was invented by designers-enthusiasts.

Here's how to see problems Ganin tank in 1945:

Notable examples of domestic and foreign heavy tanks have a number of serious shortcomings in the device of the crew compartment, undercarriage, etc., which reduce their military value.

The main disadvantages are:

As the gun and fighting compartment 1) Lack of quick-firing gun at medium and large caliber. 2) Lack of gun and turret stabilization, which is very difficult to shoot on the move the tank. 3) Small ammunition shells for the gun, which reduces the value of a combat tank. 4) The existing artillery systems medium and large caliber could hardly be placed in the limited dimensions of the turret. 5) The possibility of increasing the initial velocity armor-piercing shells at the same weight of projectile charge and size and save the gun was removed. 6) The location with respect to the tank commander and gunner guns has drawbacks in existing tanks as then: the swing of the gun, gun recoil, the fall of spent cartridges and use the loader in the loading process - all this nervous commander, distracting him from the battlefield observation. Relatively limited to an overview of the tank in front. 7) Set the gun in the turret complex technologically and structurally little benefit. 8) In the presence of anti-aircraft machine gun impossible to fire on the simultaneous ground and air enemy. 9) is not completely solved the problem of reliability of the Ventilation of the crew compartment of the powder gases which is especially important when powerful quick-firing gun. 10) In many tanks there is no leg drive smoothly electorate (hydro) turret.

To the body and chassis 1) for possible underwater walking difficult place heavy tank was sealed and the gun-turret ambrazurnogo stroke. 2) The equipment of the tank for underwater walking is difficult and unreliable (in case of emergency). 3) Diameter of rollers, a way to track the location of chain is not at all heavy tanks rational

Here is a list of izobtreteny and innovations that Ganin introduced to your project.

This puts a heavy tank design to eliminate these drawbacks and has the following features that are the subject of the invention:

1) Triple medium or installation of guns of large caliber machine guns and two (small-caliber guns). 2) Placement of the tank crew: - the driver - in the nose of the tank, - the commander and gunner - in front of the towers - two charging - behind the commander and gunner. This the location of the tank commander gives him the best view and most tranquil location. presence of two significantly increases the rate of charging of the tank gun. 3) In a pocket niche tower in the direction of loading is quick-boeukladki (constructively, as a special case of cellular) rounds for the gun. At the same time such an arrangement is possible, as for unitary rounds and for rounds of separate loading (installing tandem with the banana). This eliminates unnecessary movement when charging the gun, which also dramatically increases its rate of fire. 4) The fence is located gilzootvoda gun centering chuck, spring-loaded rocker roller, reduces the size of loading the gun and raising its rate of fire. 5) To increase the initial velocity armor-piercing projectile gun under the previous weight of the projectile charge and constant dimensions of the guns used a special long-range nozzle tip. 6) In order to stabilize the gun in the vertical plane of fire, providing marksmanship with a stroke, used a special hoist to stabilization of mobile gun system gun mount. 7) To create a foreign exchange stabilization of the turret that provides the shooting accuracy with the progress of the tank, applied on the horizon a rotary mechanism to stabilization of the tower. 8) For self-defense against aircraft, in the hatch of a loader installed polubronirovanny heavy machine gun (small-caliber gun), with a special swivel shoulder-, improving tip-off. At a time when a charging of the firing anti-aircraft machine gun, the rest of the crew continues to work his usual combat (the commander oversees the battlefield, the second charging charges the gun, the gunner firing at ground targets). The construction proposed by the author, carried out in the sample. 9) To provide a convenient foot drive of the horizontal electric (hydro) used a special turret with a swinging footrest manually-foot lever. 10) Elektropovorot turret is provided to implement the scheme Ward or Leonardo Ampledin. Duplication of the drive control tower elektropovorota displayed to the commander of a tank for the rendition of the tower, or when you specify the target. 11) the most advantageous technologically and structurally setting the gun in the turret, is achieved by using box-like frame, which is installed on the gun cradle trunnions. The processed frame is welded to the tower. This eliminates the handling of the installation of the gun inside the tower, possible biases, etc. 12) For the application of flue minutes to hide the tank or the ejection of frag mines against infantry set breech-loading mortar. In a mortar tube from the rocket tank commander gives signals flares. 13) are three hatches: the commander of his commander's cupola and both charging that facilitates rapid recovery of the crew of the tank and the tank commander's convenience during normal maintenance of anti-aircraft machine gun. 14) You installation of freely rotating commander's hatch, while flipping the stabilization of the tower to the target (obrabatyvanie angle.) 15) Sights: - guns - cracking monocular scope with variable magnification and a variable field of view (TS) - anti-aircraft machine gun - and the sighting collimator sight (mostly to calibrate the collimator.) 16) To the best of the crew compartment ventilation from powder gases, suction applied to the local gas of spent cartridges flying out of the breech, through the pipe fence gilzootvoda (performed with the holes) with the suction fan. 17) for ventilation the crew compartment is a fan-type blower, located above the gun. 18) Air supply units of the consumer in the tower provides a special case of the engine through the air VU. 19) The commander has a rotating seat with backrest and footrest special. 20) Sitting suspended charging plug . 21) Most of the combat pack is a rapid-tank and is located in the tower. 22) Ambrazurny site provides the best armor protection frontal part of the tower, the most advantageous technology and ease of making your reservation, allows a reliable seal against water, vapor CQ bullets. 23) to seal the skirt of the tower and the shielding barrel gun and swinging bookings are inflatable tubes that are located in special grooves. 24) In order to ensure circulation of the underwater tank, the suction pipe is provided for a flexible hose to the engine swinging a float tube or patched. Exhaust can be made ​​directly into the water or the patched tube into the atmosphere. When the exhaust into the water it is desirable to use slotted hangers. 25) for walking underwater tank, inside it expected to increase the air pressure to prevent infiltration of water through accidental leaks. 26) For seizure of the gun turret hatch is in an alcove of the tower. 27) Applied road wheels Large diameter, with them lying on the tracks and lifted the axles and idler drive wheel that provides greater survivability of the chassis and the best of its dynamic qualities.

Ganin Engineer Engineer CHasovnikov

As you can see, innovation is not enough. First of all, emphasis was placed on increasing the firepower of the tank and improve the review of the car. As the chassis was used by a tank shell object 701. Object 701 - IP-4 is an earlier version. Differed from the final design of the suspension and transmission, and, consequently, had a large diameter rollers, without oporonyh rollers.

How many people know, the tower tank ST-I, very much like an American. But in fact this is a purely authoring Ganina - U.S. T29/T30/T34 with their brutal towers were created independently of amerkantsami Ganina.

Due to these innovations was to get the tank at the time unprecedented firepower. Here in brief the most important: The introduction of the vertical stabilizer of the gun and the mechanism of the horizontal stabilization of the tower (!) Was to qualitatively improve the accuracy of shooting, especially with the move. The use of a special device (distant nozzle tip) allowed up to 12-20% armor penetration of all guns in the arsenal of available time. But it had one drawback - because of increased so skorsoti flight of the projectile (security armor penetration) significantly reduce the life of the barrel. Appearance of the second charging, rabotyuschih together on both sides of the gun breech, as well as the removal of combat pack in the back of the niche spetsialntsyu tower (as in today's NATO membership tanks) has significantly raise the rate of gun.

The increase in working space, the introduction of powerful ventilation crew compartment, improving the working conditions of the commander (rotating commander's cupola and an armchair commander, electromechanical device turret) allows a qualitatively improve the efficiency of the crew.


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