|Ordered||5 Jun 1941|
|Laid down||24 Jul 1942||Blohm & Voss, Hamburg (werk 177)|
|Launched||31 Mar 1943|
|Commissioned||6 May 1943||Oblt. Hans Leilich|
|Successes||No ships sunk or damaged|
Surrendered on 17 August 1945 at Mar del Plata, Argentina, after a 66-day submerged trip from Norway.
Post war information (see more post-war boats):
General notes on this boat
10 May 1945. On 10 May 1945 U-977, in Norwegian waters when Germany surrendered, put ashore those men who did not wish to join the rest of the crew in an arduous voyage to Argentina.
17 Aug 1945.
Surrender in Argentina in August 1945The boat left Kristiansand, Norway on 2 May 1945 for a combat patrol in the English Channel. When Germany surrendered a few days later the boat was outbound in Norwegian waters. After deciding to make for Argentina, Schäffer gave the married men on board the chance to go ashore. Roughly a third of the crew, 16 men, opted for this, and landed by dinghy near Holsenöy on 10 May. They all ended up in British hands. U-977 then sailed for Argentina. One continuously submerged Schnorchel run of 66 days was made between May 10 and July 14, the second longest of the war (after 68 days by U-978).
The journey was extremely stressful for the crew and many were apparently on the verge of a nervous breakdown. The boat stopped at the Cape Verde Islands for a short swim break and then proceeded south on the surface on one diesel. After crossing the equator on July 23, U-977 arrived in Mar del Plata, Argentina on 17 August after being at sea for 108 days.
The commander, Heinz Schäffer, published a book, "U-boat 977" about the voyage in 1952.
This boat was fitted with a Schnorchel underwater-breathing apparatus in February 1945.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-977 did not suffer any casualties (we know of) until the time of her loss.
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