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, …

2022年6月6日 · 2B1 Oka Engineers were tasked with creating a mobile artillery system that could fire a nuclear shell out to a range of almost 30 miles (45 km). This was no easy task, reflected …

2025年3月19日 · At the height of the Cold War, the Soviet Union developed an enormous tank-based, nuclear warhead-firing mobile mortar cannon. The 420-mm self-propelled mortar 2B1 …

2018年10月8日 · 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 …

2018年7月29日 · The 2B1 “Oka” mortar with its 20-meter long 420mm gun was an impressive sight. Charging of the gun was carried out from a side breech. All devices intended to handle …

2021年7月4日 · It was a self-propelled howitzer, essentially an armored tank hull without a turret that had an artillery piece mated to the top. The Oka used a T-10 heavy tank hull as a chassis. …

On November 7, 1957, at the military parade in Moscow, the Oka was first shown to the international public together with a 406 mm self-propelled gun on the same chassis. The …