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Robert-Richard Zapp
Richard Zapp
Born (1904-04-03)3 April 1904
Died 17 July 1964(1964-07-17) (aged 60)
Place of birth Germersheim
Place of death Kiel
  • Flag of Germany (3-2 aspect ratio).svg Weimar Republic (to 1933)
  • Flag of German Reich (1935–1945).svg Nazi Germany (to 1945)
Years of service 1923–1945
Rank Fregattenkapitän
Commands held
Battles/wars World War II
Awards Knight's Cross of the Iron Cross

Robert-Richard Zapp (3 April 1904 – 17 July 1964) was a German U-boat commander in World War II. As commander of the Type IXC U-boat U-66, he sank sixteen ships on five patrols, for a total of 106,200 tons of Allied shipping, to become the 27th highest scoring U-Boat ace of World War II. He was also a recipient of the Knight's Cross of the Iron Cross (German language:Ritterkreuz des Eisernen Kreuzes). The Knight's Cross of the Iron Cross was awarded to recognise extreme battlefield bravery or successful military leadership.


Robert-Richard Zapp joined the Reichsmarine in May 1923.[Note 1] Before joining the U-boat service in 1939, he served aboard a minesweeper and later on took command of 251 Marineflak (Naval anti-aircraft artillery). After initial training, he served on board U-46 for a short while under Oberleutnant zur See Engelbert Endrass, with whom he participated in the battle against Convoy HX 79 in October 1940.[1]

Zapp was appointed commander of U-66 in January 1941. U-66 was one of the boats that participated in the first wave of attacks in "Operation Drumbeat". On the first patrol of this operation, he sank five vessels, totalling 33,456 tons. On his second patrol off the eastern seaboard of the United States, he was victorious again, sinking six vessels totaling 43,946 tons. Zapp was awarded the Knight's Cross of the Iron Cross on 23 April 1942.[1]

In June 1942, he was posted ashore to become commander of 3rd U-boat Flotilla, based at La Rochelle, France. On 1 January 1945 he was promoted to Fregattenkapitän. In the last three months of the war, he became commander of Marine-Regiment Zapp and defended the U-boat base at La Rochelle until the very end of the war in May 1945. He spent over two years in a French captivity and was released on 7 July 1947.[1]

Summary of careerEdit

Ships attackedEdit

29 June 1941 George J. Goulandris Flag of Greece.svg Greece 4,345 Sunk
29 June 1941 Kalypso Vergotti Flag of Greece.svg Greece 5,686 Sunk
30 June 1941 Saint Aslem Civil Ensign of the United Kingdom.svg United Kingdom 5,614 Sunk
19 July 1941 Holmside Civil Ensign of the United Kingdom.svg United Kingdom 3,433 Sunk
26 July 1941 I. C. White Flag of Panama.svg Panama 7,052 Sunk
18 January 1942 Allan Jackson Flag of the United States.svg USA 6,635 Sunk
19 January 1942 Lady Hawkins Flag of Canada.svg Canada 7,988 Sunk
22 January 1942 Olympic Flag of Panama.svg Panama 5,335 Sunk
24 January 1942 Empire Gem Civil Ensign of the United Kingdom.svg United Kingdom 8,139 Sunk
24 January 1942 Venore Flag of the United States.svg USA 8,017 Sunk
14 April 1942 Korthion Flag of Greece.svg Greece 2,116 Sunk
16 April 1942 Amsterdam Flag of the Netherlands.svg Netherlands 7,329 Sunk
17 April 1942 Heinrich von Riedemann Flag of Panama.svg Panama 11,020 Sunk
26 April 1942 Alcoa Partner Flag of the United States.svg USA 5,513 Sunk
29 April 1942 Harry G. Siedel Flag of Panama.svg Panama 10,354 Sunk
2 May 1942 Sandar Flag of Norway.svg Norway 7,624 Sunk
3 May 1942 Geo. W. McNight Civil Ensign of the United Kingdom.svg United Kingdom 12,502 Damaged



  1. The German Reichsmarine which was renamed the Kriegsmarine on 1 June 1935.


  1. 1.0 1.1 1.2 "Fregattenkapitän Richard Zapp". Retrieved 27 April 2010. 
  2. 2.0 2.1 2.2 Busch and Röll 2003, p. 210.
  3. Busch and Röll 2003, p. 211.
  4. Scherzer 2007, p. 802.
  • Busch, Hans-Joachim; Röll (2003) (in German). Der U-Boot-Krieg 1939–1945 — Die Ritterkreuzträger der U-Boot-Waffe von September 1939 bis Mai 1945 [The U-Boat War 1939–1945 — The Knight's Cross Bearers of the U-Boat Force from September 1939 to May 1945]. Hamburg, Berlin, Bonn Germany: Verlag E.S. Mittler & Sohn. ISBN 978-3-8132-0515-2. 
  • Fellgiebel, Walther-Peer. Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939-1945. Friedburg, Germany: Podzun-Pallas, 2000. ISBN 3-7909-0284-5.
  • Kurowski, Franz (1995). Knight's Cross Holders of the U-Boat Service. Atglen, PA: Schiffer Publishing. ISBN 978-0-88740-748-2. 
  • Range, Clemens (1974). Die Ritterkreuzträger der Kriegsmarine [The Knight's Cross Bearers of the Navy]. Stuttgart, Germany: Motorbuch Verlag. ISBN 978-3-87943-355-1. 
  • Scherzer, Veit (2007) (in German). Die Ritterkreuzträger 1939–1945 Die Inhaber des Ritterkreuzes des Eisernen Kreuzes 1939 von Heer, Luftwaffe, Kriegsmarine, Waffen-SS, Volkssturm sowie mit Deutschland verbündeter Streitkräfte nach den Unterlagen des Bundesarchives [The Knight's Cross Bearers 1939–1945 The Holders of the Knight's Cross of the Iron Cross 1939 by Army, Air Force, Navy, Waffen-SS, Volkssturm and Allied Forces with Germany According to the Documents of the Federal Archives]. Jena, Germany: Scherzers Miltaer-Verlag. ISBN 978-3-938845-17-2. 

External linksEdit

Military offices
Preceded by
Kapitänleutnant Heinz von Reiche
Commander of 3rd U-boat Flotilla
June, 1942 – October, 1944
Succeeded by

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