Hydra IS-6
Tier 8 · ussr · heavy
About
Developed in the summer of 1944 by the Construction Bureau of the Kirov Plant (Leningrad). In the fall of 1944, the prototype underwent trials, but never entered mass production nor saw service. The Hydra received further upgrades by mounting a more powerful 122 mm BL-13 gun and improved armor.
Survivability
Hit points
1,550
View range
350 m
Signal range
730 m
Engine fire chance
15%
Armor (mm)
Front
Sides
Rear
Hull
130
100
60
Turret
150
150
100
Gun · 122 mm BL-13
Caliber
122 mm
Rate of fire
4.03 rpm
Reload
14.9 s
Aim time
3.4 s
Dispersion @ 100 m
0.47 m
Gun arc
6° / 20°
Traverse
26°/s
Ammo
37
Mobility
Top speed
38 km/h
Reverse
14 km/h
Engine
700 hp
Power/weight
13.5 hp/t
Hull traverse
26°/s
Turret traverse
26°/s
Shells
ARMOR_PIERCING
440 dmg (330–550)
225 mm pen (169–281)
ARMOR_PIERCING_CR
440 dmg (330–550)
265 mm pen (199–331)
HIGH_EXPLOSIVE
530 dmg (398–663)
68 mm pen (51–85)
Marks of Excellencesample size 24 · updated 5/23/2026
1 mark
1,340
avg damage
2 marks
0
avg damage
3 marks
0
avg damage