Tango class submarine

Crew area

The next area is the living quarters for the sailors where the majority of the submarine crew live. Here are a relaxing area with a big table where sailors would probably eat and recreate, a kitchen, toilets and sleeping cabins for officers. A total of 84 navy men (16 officers, 16 NCO's and 52 sailors) manned the submarine during deployment. The sailors sleep in field beds on the lower decks, three cooks are responsible for providing meals to the submarine crew.

Technical drawing the crew quarters section of the B-515

Crew area

Mess for the lower ranking crew on the B-515 Tango class submarine

Sitting table in the crew area

Stairs to the area where the Tango submarine has only one tier

Entering the crew area using the stairs

The diesel engine room

The next compartment is the control room for the diesel engines, with three similar control systems for the submarines three diesel engines. The 6 cylinder turbo diesel engines use a fuel injection system only now used in modern truck engines. The engines are compact, fuel efficient, quit and are even today considered as modern diesel engines.

Technical drawing the B-515 submarine engine room section

The engine rooms

Diesel engine room control panel with many clocks and switches

Lot's of clocks and switches

Panels with series of instruments in the diesel engine room

Instrument panels

Between the three consoles used for the operation of the diesel engines are the engine telegraphs. The telegraphs (one per engine) are used by the commanders in the control room to dictate the engine speed. The electrical engine has a similar telegraph system.

Control panels for each of the three submarine diesel engines

Instrument panels for the 3 diesel engines

Corridor between the batteries in the B-515 electric engine room

The diesel engine room

The electric engine room

Next room is the electric engine room, here are three electric engines allowing the submarine to stay submerged for 90 minutes sailing top speed. The batteries, placed in other compartments deliver a total capacity of 16.000 Ah (a car battery has 60 ah). The batteries are being recharged when the submarine sails on the service with its diesel engines. There is one small additional ultra quit electric engine used for spying missions when the submarine needs to stay undetected.

The diesel engine room with the three diesel engines visible

Three electric engines

One of three panels to control the electric engines of the B-515

Control equipment

Box with switches to operate a system in the electrical room

Switches

The stern section

The last section in the stern of the submarine houses the drink water tanks, the fire prevention system (a kind of foam as water can not be used in an electric environment and the hydraulic system for the site and dept rudders. The five bladed propeller of the ship is also displayed in this part of the submarine. The more blades a ship has the quieter it can operate, hence the five blades for this spying submarine.

Technical drawing the stern section of the B-515 submarine

The stern section

Screw propeller and sailor displayed in the submarine stern

Rear of the submarine

Submarine propeller screw in the rear of the Tango class submarine

Submarine screw propeller

Conclusion

There are not many modern Soviet submarines converted to museum ships, the U-434 is probably one of the most interesting Soviet submarines that can be visited around the world. The submarine is in original state, with many added decoration which gives the feeling it could depart on a mission at any moment. Hamburg’s harbour is one of the biggest in the world, a visit of the U-434 can very well be combined with a harbour port tour. Comtourist recommends anybody to visit the U-434 who is in the neighbourhood of the famous hanseatic city.

Warehouses in Hamburg seen from the water during a port tour

Combine a visit of the U-434 with a Hamburg port tour

Technical data: Project 641B (Tango class) attack submarine

Type
Country
Class
Nato designation
Power Plant
Builders
Crew
Length
Speed
Total build
Commissioned
Armament
Spy/attack submarine
Ussr
Project 641B
Tango class
Diesel and electric
Krasnoe Sormovo, Gorki
84 Men
90m
18 knots (surfaced)
18
1972
6 bow torpedo tubes
Soviet Tango class submarine at full speed in rough sees

History of the Soviet Project 641B submarine

The project 641B (Tango class) diesel submarine is a third generation Soviet diesel submarine and was the successor of the project 641 (Foxtrot class). The Tango’s larger hull compared to earlier Soviet diesel subs enabled it to have a significant higher battery capacity, also makes the clean lined hull it much quieter than its predecessors. The Tango can stay under water for more then a week before it has to snorkel and recharge the batteries. The overall performance of the Tango came very close to it’s nuclear counterparts. The first Tango was completed in 1973 at the Krasnoe Sormovo ship yard in Gorky. A total of 18 Tango’s were build in 2 versions.

Drawing of a Tango class submarine with various torpedo's

Drawing of a project 641b (Tango class submarine)

The Tango class deployed by the Soviet and Russian Black Sea and Northern Fleet. The Tango’s roll was to engage enemy surface forces and submarines and to protect friendly convoys. Also would they be used in an 'ambush' role against NATO warships operating at choke-points on the sea lanes. Most units of the Tango class were retired in 1995, four boats supposedly remain operational and six are kept in service with the Russian navy's Northern Fleet at Polyarny , they are probably in a very bad state however. Besides the B-515 (U-434) in Hamburg is there also the B-396 on display as museum boat in the new Navy museum in Moscow.

Soviet Tango class submarine on the service in calm waters

Tango class submarine

Two Tango class submarines in the icy port of Murmansk Russia

Two Tango's docked in Russian port