2S38.

This is coolbert:

Air defense Soviet style. Air defense Russian style. Out with the old. In with the old.

From the Internet web site Strategy Page and thanks to same.

"Air Defense: The Old Gun Is The New Gun"

"July 10, 2020: For the first time since the 1950's a new self-propelled anti-aircraft system has been developed using a 57 mm gun. In development for over five years Russia recently showed off the finished product, the 20 ton self-propelled 2S38 Derivatsiya-PVO, a single barrel 57mm auto-cannon that can fire 120 rounds a minute although that capability is only used in short (2-4 round) bursts of aimed fire, usually with guided or programmed (to explode at a certain location) shells . . . The three-man crew (driver, commander and gunner) operate inside the vehicle which carries 80 rounds of 57mm ammo for the auto-loading long (8.5 meter) barrel 57mm gun guided by a passive (optical/thermal) sight to detect targets. That means aircraft with radar detectors will not know the 2S38 is down there, ready to open fire with radar equipped or laser guided shells that are effective up to 8,000 meters [24,000 feet]."

TARGET ACQUISITION AND FIRE CONTROL BY PASSIVE OPTO-ELECTRONIC SYSTEM.

SHELL NOT "RADAR-GUIDED" PER SE BUT DETONATED BY A PROXIMITY FUSE.

See previous blog entries the topic the proximity fuse and importance of same:

https://militaryanalysis.blogspot.com/2018/04/fuse.html

https://militaryanalysis.blogspot.com/2020/01/vt.html

https://militaryanalysis.blogspot.com/2020/01/flak-usn.html

coolbert.