2B1 Oka
Encyclopedia
2B1 Oka is a Soviet 420 mm self-propelled gun. 2B1 is its GRAU
designation.
An experimental model was ready in 1957. Its chassis (Object 273), was designed and built by the Kirov Plant
. Its 20 meter barrel allowed it to fire 750 kg rounds up to 45 km. Due to its complexity of loading it had a relatively low rate of fire - 1 round every 5 minutes. Field tests showed various drawbacks of the entire design (the recoil was too strong for many components - it damaged drive sprockets, tore the gear-box away from its mountings, etc) and the sheer length rendered it incredibly difficult to transport
Its development continued until 1960, when the idea of such overpowered guns (along with the 2A3), was abandoned in favor of tactical
ballistic missile
s, such as the 2K6 Luna
.
Grau
Grau is a German word meaning "gray" and a Catalan word meaning "grade". It may refer to:* BAP Almirante Grau , a De Zeven Provinciën class cruiser in service with the Peruvian Navy* Grau Käse, Tyrolean grey cheese...
designation.
An experimental model was ready in 1957. Its chassis (Object 273), was designed and built by the Kirov Plant
Kirov Plant
The Kirov Plant Kirov Factory or Leningrad Kirov Plant is a major Russian machine-building plant in St. Petersburg, Russia....
. Its 20 meter barrel allowed it to fire 750 kg rounds up to 45 km. Due to its complexity of loading it had a relatively low rate of fire - 1 round every 5 minutes. Field tests showed various drawbacks of the entire design (the recoil was too strong for many components - it damaged drive sprockets, tore the gear-box away from its mountings, etc) and the sheer length rendered it incredibly difficult to transport
Its development continued until 1960, when the idea of such overpowered guns (along with the 2A3), was abandoned in favor of tactical
Tactical bombing
Tactical bombing is the aerial bombing aimed at targets of immediate military value, such as troops, military installations or equipment. This is in contrast to strategic bombing, attacking enemy's cities and factories to debilitate the enemy's capacity to wage war, the enemy's future military...
ballistic missile
Ballistic missile
A ballistic missile is a missile that follows a sub-orbital ballistic flightpath with the objective of delivering one or more warheads to a predetermined target. The missile is only guided during the relatively brief initial powered phase of flight and its course is subsequently governed by the...
s, such as the 2K6 Luna
2K6 Luna
The 2K6 Luna is a Soviet short-range ballistic missile complex. Luna rockets are solid-fuel, unguided and spin-stabilized. "2K6" is its GRAU designation. Its NATO reporting names are FROG-3 and FROG-5...
.