[1] The reason, given by Endrass for this, was the sight of Prien's demeanour as U-47 entered Scapa Flow, "his frowning face and hunched shoulders reminded him of a bull in a ring.

[1] Endrass' success continued on his second patrol with U-46, sinking five more ships, including another British auxiliary cruiser, HMS Dunvegan Castle although the main periscope was damaged.

Endrass was forced to use three torpedoes, for the drums fitted to British ships in this period was done so deliberately to provide extra ballast.

[3] Her loss prompted Commander-in-Chief, Western Approaches, Martin Dunbar-Nasmith to order all Liverpool–bound ships to remain in convoy until past the Mull of Kintyre.

The presentation was made on 30 June 1941 by Adolf Hitler at the Führer Headquarters Wolfsschanze (Wolf's Lair) in Rastenburg (now Kętrzyn in Poland).