U-47 In Scapa Flow: The Sinking Of Hms Royal Oa... Apr 2026

U-47 in Scapa Flow: The Sinking of HMS Royal Oak (1939) The sinking of in the early hours of October 14, 1939, remains one of the most audacious naval raids in history. Executed by the German submarine U-47 under the command of Günther Prien , the mission shattered the British Admiralty’s belief that their primary naval base at Scapa Flow was impregnable to submarine attack . I. The Audacious Mission

: After reloading, Prien fired a second salvo of three torpedoes. All three struck the battleship amidships at 1:16 a.m., causing catastrophic flooding and igniting a magazine.

: The shock of the raid forced immediate security changes, most notably the construction of the Churchill Barriers —massive concrete causeways built to permanently seal the eastern entrances to Scapa Flow. U-47 in Scapa Flow: The Sinking of HMS Royal Oa...

: Prien returned to Germany as a national hero, nicknamed the "Bull of Scapa Flow" . He became the first German submarine officer to receive the Knight's Cross of the Iron Cross.

: The ship listed to 15 degrees, quickly submerged its open portholes, and capsized. It sank within 13 minutes of the second strike. III. Casualties and Aftermath U-47 in Scapa Flow: The Sinking of HMS

The human cost was devastating. Of the 1,234 crew members on board, . This included 134 boy seamen under the age of 18, the largest such loss in a single Royal Navy action.

: Although much of the Home Fleet was at sea to avoid aerial attacks, the aging World War I-era battleship HMS Royal Oak remained at anchor. II. The Attack and Sinking The Audacious Mission : After reloading, Prien fired

: Today, the wreck of the Royal Oak lies upside down in 100 feet of water. It is a designated protected war grave ; each year, Royal Navy divers descend to the hull to replace the White Ensign in a ceremony of remembrance.