V.A. Vakhnenko - Head of Department, JSC V.Tikhomirov NIIP (Zhukovsky, Moscow region) A.V. Vodilov - Engineer, JSC V.Tikhomirov NIIP (Zhukovsky, Moscow region) P.A. Matveev - Engineer, JSC V.Tikhomirov NIIP (Zhukovsky, Moscow region) V.I. Sokiran - Head of Department, JSC V.Tikhomirov NIIP (Zhukovsky, Moscow region)