Mount Elbrus Russia. The name "Elbrus" is a metathesis of "Alborz", which is also the name of a long mountain range in northern Iran. It is derived from Avestan "Harā Bərəzaitī", which is a legendary mountain in Iranian mythology. "Harā Bərəzaitī" reflects Proto-Iranian *"Harā Bṛzatī", which was reformed into Middle Persian as "Harborz", and into Modern Persian as "Alborz". "Bṛzatī" is the feminine form of the adjective *"bṛzant" ("high"), the reconstructed ancestor of Modern Ossetian "bærzond" ("high", "peak"), Modern Persian "barz" ("high"), "berāzande" ("elegant"), and "boland" ("high", "tall"), and Modern Kurdish "barz" ("high"). "Harā" may be interpreted as "watch" or "guard", from
S-300 missile system can engage targets out to and up to altitudes of around . In both cases the warhead is around . Radar modes are different and it requires the use of all methods of jamming, while S-300V system works completely passive mode. While it was created from the same project, hence the common S-300 designation, different priorities resulted in a design quite different from the other versions. The S-300V system is carried on tracked MT-T transporters, which gives it better cross-country mobility than even the S-300Ps on 8 × 8 wheeled transporters. It is also somewhat more distributed than the S-300P's.