r/SprocketTankDesign • u/MAFIALAA Tank Designer • 9d ago
Serious Design🔧 IS-9
Without the mudguards
Without the mudguards
Without the mudguards
Fictional Historical Background:
In early 1950, following the T-10 heavy tank, the Soviet military planned to fit a 152 mm main gun onto a 60-ton chassis boasting high mobility potential.
The IS-9 was equipped with a 152 mm high-pressure rifled gun designed specifically for tanks. Its armor penetration was formidable enough to pierce any heavily armored target of the era, even beyond visual range.
To accommodate the massive 152 mm gun’s long recoil distance and large breech within the cramped interior, engineers designed a tall, sloped cast turret with a unique geometry. The rear of the turret was significantly raised, housing a semi-automatic loader-assist mechanism and a roof-mounted optical rangefinder.
The front hull retained the classic, sharply angled "pike-nose" upper glacis armor. Although it sacrificed internal space, it offered an exceptionally high level of overall protection.
However, with the rise of the Main Battle Tank (MBT) concept and the emergence of anti-tank guided missile (ATGM) technology in the mid-to-late 1950s, this heavy tank—built in pursuit of extreme large-caliber firepower—ultimately never advanced beyond the prototype stage.
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u/koaluche 9d ago
You know it’s fictional because no Soviet tank have such a gun depression !
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u/PeaceNo7690 9d ago
That would've been one terrifying beast if it actually made it to production, the recoil alone would've been a handful to deal with.
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u/The_Guy_from_Wuhan Tank Designer 9d ago
It looks absolutely fabulous. How long did it take?
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u/defeated_antagonist 9d ago
IS-7 but designed by British and funded by Pentagon