State Committee at the head of deputy of ministry of shipbuilding industry I.S. Belousov signed act of brining in service one of the fundamental production objects of «North Machine-Building Enterprise» – workshop no.55, gigantic slipway, in which four Isakievsky Sobor would be placed. Length of the slipway – 432 m, width –130 m, height – more than 70 m. Only for four years this complicated technical construction was built