SU-100Y

This page is about the Soviet tank destroyer SU-100Y. For other uses, see SU-100 (Disambiguation).

SU-100Y

SU-100Y

USSR

III Rank

Battle rating:

AB	RB	SB
5.0	4.7	4.7

Class:

PREMIUM

Tank destroyer

Purchase:2 980

Show in game

Description

The SU-100Y was a Soviet prototype developed from the chassis of the T-100 heavy tank prototype in the Winter War. The vehicle was intended to fill a similar purpose as that of the KV-2, using its 130mm naval gun to provide support to infantry against fortified positions. The use of a high velocity 152mm gun was also proposed. The tank never made it past a prototype phase, although the single prototype built was reportedly used in the defence of Moscow in 1941. The sole model in existence is currently preserved at the Kubinka Tank Museum.

It was introduced in Update 1.51 "Cold Steel". The SU-100Y is a very heavy tank destroyer with an extremely powerful gun. The tank features mediocre armour at the front, and can be penetrated with ease by most enemies around its BR at close ranges. Its mobility can be considered average at best, reaching it's top speed relatively quickly for a tank of it's size, although the reverse speed is very poor. Its gun is a 130mm B-13 naval gun which uses SAPCBC as its regular ammo. Boasting a large amount of explosive filler and high penetration even at long ranges, the SU-100Y has no trouble destroying enemy tanks.

General info

Survivability and armour

Armourfront / side / back

Hull60 / 60 / 60

Turret60 / 60 / 60

Crew6 people

Visibility36 %

Armour type:

• Rolled homogeneous armour
• Cast homogeneous armour (rear hatch)

Armour	Front	Sides	Rear	Roof
Hull	60 mm (46°) Front plate 60 mm (71°) Front glacis 25 mm (49,70°) Joint plate 60 mm (49°) Lower glacis	60 mm Overall 60 mm (27°) Engine side deck	60 mm (5-14°)	20 mm Front 20 mm (82°) Rear deck
Superstructure	60 mm Front 50 mm (1-27°) Gun mantlet 60 + 60 mm Gun shield	60 mm	60 mm (17°)	20 mm

Notes:

• Suspension wheels are 20 mm thick while the tracks are 30 mm thick.
• The protection is only 60 mm thick at its strongest. Weapon calibres exceeding 20 mm can pierce the armour, turning SPAAG into a real threat, if close enough. It is a good idea to stay with teammates or remain at distance from the main battle.

Mobility

Speedforward / back

AB36 / 5 km/h

RB and SB33 / 5 km/h

Number of gears4 forward

1 back

Weight64.0 t

Engine power

AB1 622 hp

RB and SB850 hp

Power-to-weight ratio

AB25.3 hp/t

RB and SB13.3 hp/t

Game Mode	Max Speed (km/h)		Weight (tons)	Engine power (horsepower)		Power-to-weight ratio (hp/ton)
	Forward	Reverse		Stock	Upgraded	Stock	Upgraded
Arcade	36	5	64	1,207	1,622	18.86	25.34
Realistic	33	5		752	850	11.75	13.28

Modifications and economy

Repair cost

AB1 455

RB1 693

SB2 335

Crew training10 000

Experts250 000

Aces630

Research Aces870 000

Reward for battleAB / RB / SB

2 × 110 / 160 / 210 %

2 × 160 / 160 / 160 %

Modifications

Mobility	Protection	Firepower
Tracks Suspension Brake System Filters Transmission Engine	Improved Parts Improved FPE Crew Replenishment	Horizontal Drive Adjustment of Fire Elevation Mechanism

Armaments

Main armament

130 mm B-13 cannon

Ammunition30 rounds

Reloadbasic crew → aces

25.0 → 19.2 s

Vertical guidance-5° / 15°

Horizontal guidance-10° / 10°

130 mm B-13					Turret rotation speed (°/s)					Reloading rate (seconds)
Mode	Capacity	Vertical	Horizontal	Stabilizer	Stock	Upgraded	Full	Expert	Aced	Stock	Full	Expert	Aced
Arcade	30	-5°/+15°	±10°	N/A	6.16	8.53	10.36	11.46	12.19	24.96	22.08	20.35	19.20
Realistic					4.17	4.90	5.95	6.58	7.00

Ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
PB-46A	SAPCBC	202	199	190	179	168	158
OF-46	HE	36	36	36	36	36	36

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (kg)	Ricochet
							0%	50%	100%
PB-46A	SAPCBC	870	33.5	1.2	19	2.35	48°	63°	71°
OF-46	HE	870	33.4	0	0.1	3.58	79°	80°	81°

Ammo racks

Ammo racks of the SU-100Y

Full ammo	Ammo part	1st rack empty	2nd rack empty	3rd rack empty
30	Projectiles Propellants	27 (+3) 27 (+3)	21 (+9) 21 (+9)	15 (+15) 15 (+15)
4th rack empty	5th rack empty	6th rack empty	7th rack empty	Visual discrepancy
11 (+19) 11 (+19)	5 (+25) 5 (+25)	3 (+27) 3 (+27)	1 (+29) 1 (+29)	No

Notes:

• The SU-100Y uses two-piece ammunition, composed of projectiles (yellow) and propellant bags (orange). Both have separate racks.
• Racks disappear after you've fired all shells in the rack.
• Right wall empty: 15 (+15) shells.

Usage in battles

This tank is all about the gun. It defines what being a heavy tank destroyer is. Bad armour, bad mobility, but amazing firepower. Just park the tank in a position where the SU-100Y will be difficult to flank. That way when the vehicles do fire the gun, it can immediately run and hide while the gun reloads. It can not be emphasized enough, this tank can not let itself get shot at. It just doesn't have the armour. But once ready to let one of the 130 mm shells loose, this tank fears few.

The SU-100Y benefits from a sniper-like playstyle, as well as from hiding between buildings but specially around vegetation. Although the tank is too big to be effectively hidden using camouflage decals (like bushes and so forth) this does decrease the likelihood of the vehicle not being spotted on maps with dense vegetation.

The tank has a relatively crammed crew compartment with 6 crewmembers that actually amplify the tanks performance, in fact, the gun is so large that in many cases it can stop shrapnel or an explosion from an APHE shell from reaching the crewmembers on the other side of the gun. With this in mind however, it is indeed more susceptible than other vehicles to overpressure.

The tank has a better gun depression than most Soviet tank destroyers, this means that unlike other Soviet tanks, it can be used rather effectively in hull-down positions, which also amplify its armour due to the increased impact angle coming from most enemy shells.

The SU-100Y is overall better used as a sniper, setting it up on the flanks of the enemy or in a high up position overseeing a key point of the map, that being a busy intersection, a main road or a capture point, can decide the outcome of the battle if played well. The only thing to consider with this playstyle is that due to the poor mobility of the SU-100Y, it suffers when trying to change position, which makes him very vulnerable to enemy CAS once spotted.

Pros and cons

Pros:

• The SU-100Y's B-13 cannon is one of the more powerful guns at its rank, able to penetrate ~200 mm of armour at 500 m
• Astounding 2.35 kg of TNT explosive filler in the PB-46A SAPCBC shell that can reliably knock out tanks with a single shot
• With 5 degrees of gun depression, the SU-100Y has better gun depression than nearly every other Soviet tank destroyer
• The SU-100Y has a very powerful engine, accelerating to its top speed and maintaining it even while going uphill is no problem
• Six-man crew spread out across the vehicle gives this tank a decent chance of surviving a penetrating shell
• Has a research point and Silver Lions boost as a premium vehicle

Cons:

• Skilled players will recognize the threat a SU-100Y poses - expect to be the centre of the enemy's attention
• This is a huge tank, finding decent cover or a good ambush location is difficult at best
• Sub-par armour - every gun that this tank can face poses a serious threat
• Extremely vulnerable cannon breech and barrel. Problematic as a single hit to them will result in them being in critical condition
• With a terrible manoeuvrability, a mediocre reverse speed and a massive size, dodging enemy fire is nearly impossible
• Even a good crew will take more than 20 seconds to reload the gun

History

Development

After the failure of the vehicle from testing in the Winter War, the T-100, along with the SMK, fell back into the drawing boards along with other designs that didn't make the cut. But in December 1939, the Red Army requested that Factory No. 185 produce a vehicle based on the failed T-100 chassis. The specifications were for the vehicle to not only operate as a self-propelled gun but in a multitude of roles such as a bridge layer, explosive transporter, and tank recovery.

Development started with the proposal to mount the 152 mm cannon onto the T-100 in order to be able to combat fortifications like the KV-2 with the same armament. The factory manager instead proposed the mounting of a 100 or 130 mm naval gun onto the vehicle instead, and this proposal was accepted on January 8, 1940. The designs, designated T-100-X, was sent to the Izhorskyi factory. At that moment, the T-100-X had a box-shaped fighting compartment with a 130 mm B-13 naval gun. The vehicle had a torsion-bar suspension to stay mobile. Over time, the prototype was redesigned with a modified fighting compartment and such and was resubmitted to the factory for production on February 24, 1940, and redesignated as the SU-100Y. The produced design was tested in March, but the design was dropped from production due to the low demand and the ending of the Winter War. This leaves the SU-100Y with only one prototype ever built. Other methods to either modernize the T-100 or into other variants were made in complementary to the SU-100Y, such as mounting the 152 mm M-10 gun and designating it the T-100-Z. This idea never went past the drawing boards as the success of the KV-1 and KV-2s proved the designs unnecessary. Another idea was to use the T-100 as coastal defence weapon with the 130 mm gun on a turret than a casemate structure, along with three machine guns, like the T-100-Z, this didn't pass the drawing boards.

Service

The SU-100Y prototype was sent to Kubinka in 1940 once the project stopped, however in the Battle of Moscow in 1941, the SU-100Y and its T-100 self-propelled variants SU-14 and SU-14-1 were pressed into service in the Independent Artillery Division for Special Duties. Combat records for these units are not known, but it left the SU-100Y in intact shape, allowing it to be preserved today in the Kubinka Tank Museum.

Archive of the in-game description

The SU-100Y heavy SPG was built on a modified chassis of the experimental T-100 tank on which a new cabin with a 130 mm B-13 navy gun had been installed. An experimental model was assembled at Factory #185 in March, 1940. Because combat operations on the USSR-Finnish front had ended, testing the new SPG in combat conditions was impossible. After undergoing tests, the vehicle was sent to the NII BTT research institute testing ground in Kubinka. Further work on this vehicle was abandoned.

Media

Skins

• Skins and camouflages for the SU-100Y from live.warthunder.com.

Videos

Most unusual vehicles discusses the SU-100Y at 1:44 - War Thunder Official Channel

See also

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

• reference to the series of the vehicles;
• links to approximate analogues of other nations and research trees.

External links

• [Devblog] Ki-44-1 and SU-100Y

Experimental Design and Mechanical Engineering Department
Light Tanks
T-26	T-26 · T-26 (1st Gv.T.Br.) · T-26E · T-26-4
T-50	T-50 · T-126
Heavy Tanks	T-35
Tank Destroyers	SU-5-1 · SU-100Y
Export
T-26	␗T-26 · T-26 No.531
See Also	Omsk Transport Engineering Plant