Diving on the wreck site
The U-670 submarine rests on its keel on the hard seabed at a depth of 82 meters. The forward torpedo hatch is open. In July 2025, together with Mariusz Banaszak and Sławek Patuła, we removed several nets from the conning tower that were covering the RDF antenna (used to locate sources of radio signals, such as broadcasting stations, ships, or other vessels), periscopes, and the UZO (a special periscopic sight with a reticle and bearing indicator, used for aiming torpedoes). The stern section of the wreck was damaged in a collision with a training target; this collision brought the U-boat's service to an end.
Story
A type VII C U-boot. It was launched on 15 December 1942, and commissioned on 26 January 1943 under the command of Oberleutnant zur See Guido Hyronimus.
It sank on 20.08.1943 on a training misson, after a collision with the target ship Bolkoburg. The crew consisted of 43 men, of which 22 survived and 21 perished in the Baltic Sea.
The wreck lies deep - 82 meters under the surface of the Baltic Sea, north of Jastarnia, Hel Peninsula. Identification of the wreck was performed by Baltictech team, with a thorough investigation conducted by Daniel Pastwa. The forward torpedo hatch is open, and after removing the nets from the conning tower (the model was created before that), the RDF antenna, periscopes, and UZO were uncovered. The stern part of the wreck is destroyed as a result of above-mentioned collision.
Technical Specifications
Type: Type VIIC Submarine
Length: 67,10 m
Width: 6,20 m
Draught: 4,74 m
Propulsion: 2 diesel engines, 2 electric engines
Speed: 17,7 knots on surface, 7,66 knots submerged
Text: Bartłomiej Pitala
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