The ship was 117feet long, with a beam of 24feet. She had a depth of 10feet. She was assessed at, . She was powered by a diesel engine, which had 8 cylinders of 11inches diameter by NaNinches stroke. The engine was built by Klöckner-Humboldt-Deutz AG, Köln, Germany. It was rated at 98 nhp. It drove a single screw propeller.[1] It could propel the ship at 11kn.
Almuth was built as yard number 108 by Schulte & Bruns, Emden, Germany. She was launched on 27 June 1936 and completed on 28 July. She was owned by the Dollart Heringfischerei AG, Emden. Her port of registry was Emden. She was allocated the Code Letters DGKF,[1] and the fishing boat registration AE 79.
On 9 October 1939, Jupiter was requisitioned by the Kriegsmarine, serving with 14 Minensuchflotille as the minesweeper M 1404. On 22 March 1942, she was reallocated to 44 Minensuchflotille and her pennant number was changed to M 4415. On 1 January 1943, she was designated as a vorpostenboot. She was allocated to 6 Vorpostenflotille as V 623 Jupiter. On 11 August 1944, she was scuttled at Nantes, Loire-Inférieure, France,[2] because she was unmanoeuverable.