The first submarine of project intermediate 641B "Catfish", intended to replace the big boats cruising range project 641 in the operating areas of the Black Sea and Northern Fleets, It was collected in 1972 g. in g. Gorky. There were to construct 18 two modification units, had minor differences. Boats were later built several meters long, perhaps, in connection with the installation of missile systems equipment PLO. Bow sonar equipment was outwardly similar to, which is installed at that time in modern Soviet nuclear-powered attack submarines, and the power plant has been tested in the last subtype "Foxtrot".
Submarine Project 641B “KGS” – video
Significantly greater in comparison with all the preceding projects Soviet submarines with conventional power plant has the capacity of batteries, which it was associated with an increase in the pressure hull. This has allowed to extend the autonomy of underwater for a week until, demanding ascent and using RDP. Complemented by new weapons and means of detection, These opportunities gave the boats Project 641B "Catfish" ideal qualities for use in natural narrows from the "ambush" against Western nuclear submarines. Currently, the construction of boats of this type terminated. However, in the fleet continue to be four boats inherited from the Soviet Navy, they are based in the Arctic in the Northern Fleet.
Manufacturing Submarine Project 641B "Catfish" was completed in 1982 g. Structurally, it is the development of "Foxtrot" type boats with larger capacity batteries and advanced electronics. The housing has a sleek contours, that increased the combat capabilities of the boat submerged.
The hull and conning tower fence submarines large cruising range has extended acoustic cover, and at least one boat was equipped with this type of cable-towing apparatus for sonar antenna feed drum and winch, on deck.
The performance characteristics of the submarine project 641 B "Catfish"
| Displacement: above water / underwater, t | 3100 /3800 |
| Length, m | 91 |
| Width, m | 9,1 |
| Draft, m | 7,2 |
| Power point | three diesel power 4,6 megavatta (6256 hp) and three electric motors, three rotating shaft |
| Speed | surface speed 13 ties and submerged speed 16 with |
| immersion depth | working 250 m and marginal 300 m |
| torpedo-tube | six 533-mm bow |
| Standard ammunition | 24 533-mm or anti-anti-torpedo or the corresponding amount min |
| Crew | 62 man (12 officers) |
Photo submarine 641B "Catfish"
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