Boathouse / Elling #2 (former Tsekh / Workshop #55)
Shipyard No. 402
Sevmashpredpriyatie [Sevmash]
Northern Mashinebuilding Enterprise

It is said that for the first time in world practice, a module-modular design and construction of nuclear submarines was implemented in this slipway. But photographs of such a process are not too much in evidence. Photographs of the construction of the Project 941 boats makes it pretty clear that at least they used traditional piece-work methods. Subsequently photographs of the 955 Borei / Yuri Dolgorukiy were suggestive of modular construction, but recent photographs of the Project 885 Yasen / Graney / Severodvinsk clearly indicate traditional piecework rather than modular construction.

The first submarine of the project 941, which received the designation TK-208, was laid down at the shipyard of the shipbuilding enterprise June 30, 1976 and launched on September 27, 1980. The ship was commissioned in late 1981. In total, six 941 submarines were built at Sevmash. On April 22, 1979 in the workshop No. 55 the nuclear submarine of project 949 K-206 (factory No. 424) was laid out, named in 1987 “Minsk Komsomolets”, and in 1993 - “Murmansk”. On December 19, 1989 the sixth and last submarine of the project 941 (serial number 727, the side number of the TK-20, from 2001 - Severstal) has entered into the Navy, built at the Sevmashpredpriyatiya PO

December 30, 1980 on the Sevmashpredpriyatiya, the naval nuclear submarine of the project 949 was delivered (head # 605, the side number K-525, from April 6, 1993 - Archangelsk). IT was the first submarine of the third generation. The first submarine, built in a specially designed for third-generation ships, shop number 55 "Sevmashpredpriyatiya." A high-speed submarine armed with 24 cruise missiles capable of delivering a massive strike against enemy aircraft carriers from long distances. Two nuclear submarines under project 949 and eleven under the modernized project 949A were built at Sevmashpredpriyatiya.

For the construction of nuclear submarines at the Northern Machine-Building Enterprise, a new workshop was built specially - the largest covered boathouse in the world. On December 30, 1974 the State Commission, chaired by the Deputy Minister of the Shipbuilding Industry, I.S. Belousov, signed the act of commissioning one of the main production facilities of Sevmashpredpriyatiya, Shop No. 55, a giant slipway, which could house four St. Isaac’s Cathedrals. The length of the slipway is 432 m, the width is 130 m, and the height is more than 70 m. In just 4 years, this most complicated technical structure has been built.

The 55 workshop - known for being the tallest industrial building in Russia (in Europe, the Mayer Shipyard, Papenburg, workshop 6 is larger - 504x150x70m - completed in 2008). The press service of Sevmash gives the height of the lifting of goods by bridge cranes up to 60 m and the size of the gate 57x52 m, although, judging by photos, their four doors are shifted to the walls in this way that was formed with stationary parts of the facade form a single central aperture width of 85 m.

The construction of the workshop began in 1969, and its first phase was commissioned in December 1974. The building was erected by Severodvinsk builders under the direct supervision and with the participation of many specialists from Minmontazhspetsstroy. A lot of attention was paid to this construction by D. Ustinov, who was at that time the secretary of the Central Committee of the CPSU.

On the occasion of the commissioning of the first stage of the workshop, a grand rally of builders and operators was held. It was December 29, 1974. In the shop stood a big Christmas tree with a five-pointed star on top. V.A. Khrebtov, Head of Construction, presented G.L. Prosyankin has a symbolic key from the new workshop, which he handed over to NV Skoblikov, the assembler of metal hulls. This key as an expensive relic of those unforgettable years is stored in the museum of military valor and labor glory of the association. He, like the “complex” itself, reminds visitors and especially young people of the heroic deeds of fathers and grandfathers who worked in the seventies of the twentieth century.

The first head of the workshop was appointed VV Sklaban. He was replaced in 1981 by AP Vetoshkin. On the gable at the entrance to the workshop number 55 were written the numbers "1970-1974" - the years of its construction. In 1984 and 1985, for the creation of a unique slipway and third-generation head submarines, the Sevmash workers became laureates of the USSR State Prize: N.G. Orlov, V.A. Borodin, A.A. Samoilov, S.V. Pantyushin, A.A.Fishev, V.A. Petrushin, Yu.V. Kondrashov and V.V. Skalaban. Thousand four hundred fifty seven workers of association were awarded orders and medals.

Everything then in the shop was unique. Two cranes with a lifting capacity of 330 tons each were mounted here, with their help it was possible to load metal structures weighing 600 tons each. In the shop they worked, as in a real metro, escalators. High-speed elevators delivered people to the top.

Workshop No. 55 is an indoor slipway measuring 436 by 130 meters and has an exit gate measuring 57 by 52 meters. The shop has three berths ["stacking lines"] and is equipped with two gantry cranes with a lifting capacity of 320 tons, with a lifting height of about 40 m. In the transverse direction, cargo is transported by bridge cranes with a lifting capacity of 15 tons and lifting heights up to 60 m. the mass of the transported structures using the traverse is 540 tons, the lifting height is 37 m. Auxiliary spans of the workshop have cranes with a lifting capacity of 10/30 and 100 / 20t.

The launching chamber of the workshop in the outlet waterworks has a length of 180 m. The Sukhona floating dock is used to bring the built ships out of the workshop. Shop number 55 is designed for the build-up production of nuclear submarine hulls.

The gate of the second slipway has dimensions of 57 x 52 meters. (Ie, a 12-storey house can easily drive in.) The dock has three slipways and is equipped with two gantry cranes with a lifting capacity of 320 tons, with a lifting height of about 40 meters. bridge cranes with a lifting capacity of 15 tons and a lifting height of up to 60 meters. When working in tandem gantry cranes, the maximum mass of the transported structures using a crosspiece is 540 tons, lifting height is 37 meters. Auxiliary spans of the workshop have cranes with a loading capacity of 10/30 and 100 / 20t.

• 111040 sq.m - total area,
• 432 m - length,
• 130 m - width,
• 373.6 m - length of the slipway plate,
• 78 m - width of the dock,
• 78 m - the width of the exit gate in the light,
• 73.2 m - the height of the slipway.

In workshop 55, the order rolls (on a similar ship train) to a transfer station on a concrete base. the floating dock of the Sukhona (202.5x42.5 m), which floats up when the pool is filled with water, moves out of the bucket (which is opposite the workshop) to the deep outlet slit, waits for the water to drain from the pool, goes through the semi-sluice into the water area of the plant Dvina), where it sinks and produces the final launch of the ship on the water. Intricate, isn't it?