2B1 Oka, (Russian: "2Б1 Ока" - "Oka River"), is a Soviet 420 mm (17 in) self-propelled heavy mortar. 2B1 is its GRAU designation. It was designed to deliver tactical nuclear payloads, however it was plagued by technical issues caused by the sheer size of the gun and the massive recoil during firing.

Jun 6, 2022 · What they didn’t know was that this vehicle was anything but fake, it was the 2B1 “Oka”. The 2B1 is a defining example of Soviet “flexing”. A 420 mm (16.5 inch) gun sat on top of an overburdened chassis – originally intended for the T-10 – that pretty much disassembled itself every time it fired.

Oct 8, 2018 · The 2B1 "Oka" was a short-lived, heavy-class, self-propelled gun system developed by the Soviet Union at the height of the Cold War. Such large-caliber guns had proven the norm for decades and found renewed importance during World War 1 and into the interwar years leading up to World War 2.

Mar 19, 2025 · What was the 2B1 Oka? The 21B “Oka,” was a Soviet-designed mobile, large-caliber artillery piece designed to fire nuclear-tipped ammunition. Its creation was inspired by the initial tests of...

The 2B1 Oka (In Cyrillic 2Б1 Ока) Is a mortar self-propelled artillery 420 mm developed and constructed Soviet Union the late fifties. 2B1 is the name GRAU. Development and technical. The development was started in the OK 1957 exploiting the system engine and chassis parts tank T-10. Its hull (Subject 273) was.

Jul 22, 2024 · The Soviet 2B1 Oka is a monumental yet short-lived piece of Cold War artillery. Displayed at the Military-Historical Museum of Artillery, Engineer and Signal Corps in St. Petersburg, Russia, the Oka was an ambitious project involving a 420mm gun capable of launching up to 28 miles.

Oct 14, 2022 · 2B1 "Oka" is a Soviet-designed mobile, large-caliber artillery piece that is built to fire nuclear-tipped ammunition, according to Interesting Engineering. It was...

Capable of firing continuously 12 times per hour, firing 750 kg nuclear projectiles up to 45 km away, the 2B1 Oka is the most fearsome nuclear supergun ever built. The 2B1 Oka was built based on...

Jan 24, 2025 · Self-propelled mortar 2B1 "Oka" The undercarriage of the car, designed by the Kirovsky plant design bureau, according to the GBTU classification, received the designation "Object 273". This chassis was maximally unified with the ACS 2A3 and met the increased requirements for structural strength.

Le 2B1 Oka (en russe : 2Б1 Ока) est un canon automoteur soviétique de calibre 420 mm. Son canon de 20 mètres lui permet de tirer un obus de 750 kg jusqu'à 45 km avec une cadence …