The Type 206 is a class of diesel-electric U-boats developed by Howaldtswerke-Deutsche-Werft AG (HDW). Its design is based on the preceding Type 205 submarine class. These small and agile submarines were built in the Cold War era to operate in the shallow Baltic Sea and attack Warsaw Pact shipping if the war had turned hot. The pressure hulls were built out of non-magnetic steel to counter the threat of magnetic naval mines and make detection with MAD sensors more difficult.
Sea - Military - Submarines