The 1970s saw a resurgent German submarine (U-boot) industry, and the start of a period when they would dominate the export market. Typical German submarines, such as the ubiquitous Type-209, were relatively small diesel-electric boats but packed a big punch. Several other designs were even smaller however, and aimed at the Special Forces and special operations market which was at the time dominated by Italian firm Cos.Mo.S. One of the designs on offer was the Thyssen Nordseewerke (/Rheinstahl Nordseewerke) MSV-75 (Multipurpose Submersible Vessel).

MSV-75

1 - rudder and vertical stabilizers
2 - aft hydroplanes
3 - electric motor
4 - high-pressure air flasks
5 - AC generator
6 - diesel engine
7 - switchboard
8 - batteries
9 - control room
10 - main ballast tank
11 - external containers for mines or stores
12 - galley
13 navigation equipment
14 - hydroplanes
15 - the periscope
16 - bunks
17 - diver lock-out chamber

MSV-75

Rheinstahl Nordseewerke GmbH_MSV75.jpg