Soviet/Russian long range sam projects

[World B4]

The hundreds series of sam systems is iconic. The S-200, S-300, S-400, and S-500 are all in active service a hop skip and a jump away from each other, and are combat tested air denial systems that shape the way aircraft can operate with their very presence. Aura, if you would. I would love to know about prototypes and projects relating to these missiles, and to start here's a unique variant of the Maz 8 wheel tel used for testing the S-400. https://www.ausairpower.net/APA-S-400-Triumf.html#mozTocId846197