Nikolai Vladimirovich Zateyev was the commander of one of the first two what?
Nikolai Vladimirovich Zateyev: Nikolai Vladimirovich Zateyev (Russian: Николай Владимирович Затеев ) (c. June 30, 1926 – 28 August 1998) was a Russian submariner and a Captain First Rank in the Soviet Navy, notable as the commander of the ill-fated Soviet submarine K-19 in July 1961 during the Hotel class submarine's nuclear-reactor coolant leak. Soviet submarine K-19: K-19 was one of the first two Soviet submarines of the 658 class (NATO reporting name Hotel-class submarine ), the first generation nuclear submarine equipped with nuclear ballistic missiles, specifically the R-13 SLBM.
Soviet submarines of the 658 class