The A-209 Eurotser (Artileroun-209 Kalibra Eurotser) is a 209mm Self Propelled Artilerry build For the Marineon Army, The Eurotser itself was build to replace the outdated A-152 Odyon, It was developed from 1956 and done in 1964, it began entering service for the Marineon Army in 1967 after several tests done, the Name Euroster itself means Destroyer

The A-209 firing Its gun on a combat training

The A-209 Would use The SU-9N Cannon on its first prototype, then replaced by the newer Cannons on next prototype, the A-209 Can fire many types of shells, it varies from a Standard Shell, Laser Guided Munition, Rocket boosted Shells. Its range also depends of what shell it would use, Standard shells has a range of 250+ KM range, while Rocket boosted and guided ones could reach even further, 350+ KM of range

The A-209 Uses Kaplim K-29R, the same engine used on most of the Marineon MBT's that gives this Big Gun capability to reach 50+ KMH

Several Versions were also made, there are:

A-290P Is the Upgraded Variant
A-290S is an export variant with downgraded equipments
A-290AM Is a special export ver ordered by america, only a little of its parts that are downgraded
A-290SU/R Is a special export Version for Soviet/Russia, Some downgraded parts are replaced by Soviet made equipments

Controls

Roll and Pitch to operate turret
Throttle and Yaw to drive artilerry