I bring to your attention an error in your "U-boat Profiles" which is understandable but needs attention.

On 19 September 1945, the US Navy issued their "Report on the Interrogation of Prisoners from U-977 Surrendered at Mar del Plata, 17 August 1945". You will find the entire report reproduced at:

www.uboatarchive.net/U-977INT.htm

Under Section headed FIRST AND ONLY PATROL OF U-977 it is stated that in the early hours of 10 May 1945, 16 men were put ashore from the submarine on an island near Bergen, and we may assume that U-977 sailed for Argentina that day.

It is clear from the passage "U-977 made for the Iceland Passage on course 300º, diving once on sighting a plane and once on sighting a ship" and from the "frequent DF's late in May" that the alleged "world record unbroken submerged voyage" did not begin immediately, if at all.

The US Navy report states that Schäffer's U-boat anchored at Branco in the Cape Verdes on 14 July 1945, and it therefore appears to be the case that there was insufficient time for a "66-day submerged voyage" even port to port from Norway to the Cape Verdes.

In his book, Schäffer claims that the 66-day run covered only 1,800 miles, which is far less than the distance between Norway and the Cape Verdes, and he also said that the "66-day submerged run" terminated close to Gibraltar.

The entire fiction was cooked up to explain how he got to Argentina on only 80 tonnes of fuel.

Schäffer's first book "Geheimnis Um U-977" was published in Argentina in 1950, and predates the well-known expurgated version on which your Profile relies and which came out in 1952. The Spanish translation of the former book was published this year in Argentina and contains a number of fresh surprises as to the whereabouts of U-977 on various dates during the voyage.