As it's well known abroad, the first world HMS was developed in USSR - 'Shchel' (Kiev, Arsenal). A long time after USSR dismissal Russian AF and military aircrafts manufacturers used 'Sura' HMS variants of the same Ukrainian vendor without trying to develop Russian own capability in this issue. However, the political problems in Ukraine, economic instability there and the Western efforts to break territorial and ethnic integrity of this Orthodox state, which transitionally had good relation with Moscow, pushed Russia to development of its own HMS, for not to be dependent from Kiev. This helmet was developed by GRPZ (BARS radar serial manufacturer from Ryazan), and used on new Russian attack helos - Ka-50/52 and Mi-28N:
Hi thanks for sharing this
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