On 7 February 1938, Mayer claimed his first two aerial victories when he shot down a Tupolev SB bomber and a Polikarpov I-16 fighter.[5] He was later awarded the Spanish Cross in Gold with Swords (Spanienkreuz in Gold mit Schwertern) on 14 April 1939 for his service in the Spanish Civil War.[6] Upon his return from Spain, Mayer was posted to the 1. Staffel of the Jagdgeschwader 334 (JG 334—334th Fighter Wing).[4] This Staffel was part of I. Gruppe (1st group) of JG 334 commanded by Major Hans-Hugo Witt. On 1 November, the Gruppe was renamed and became I. Gruppe of Jagdgeschwader 133 (JG 133—133rd Fighter Wing). In early 1939, the Gruppe received the then new Messerschmitt Bf 109 E-1 and E-3 fighter aircraft. On 1 May, the unit was again renamed, receiving its final designation, and became the I. Gruppe of Jagdgeschwader 53 (JG 53—53rd Fighter Wing). On 15 March, Mayer's 1 Staffel was placed under the command of HauptmannWerner Mölders and based at Wiesbaden-Erbenheim Airfield.[7]
World War II
World War II in Europe began on Friday 1 September 1939 when German forces invaded Poland. On 1 October, Mayer was appointed Staffelkapitän (squadron leader) of 1. Staffel, thus succeeding Mölders who was transferred.[8][9] He claimed his first victory of World War II on 5 November 1939 downing a French Potez 63 reconnaissance aircraft near Saarburg.[10] On 21 April 1940, Mayer claimed his second aerial victory on a fighter sweep mission to the area of Trier-Pirmasens. His claim over a Hawker Hurricane was the sixth for his Staffel and the 24th of I. Gruppe.[11] For this, he received the Iron Cross 2nd Class (Eisernes Kreuz 2. Klasse).[12] Mayer claimed eight more victories during the Battle of France, including five aircraft shot down on 14 May 1940, making him an "ace-in-a-day".[13]
During the Battle of Britain he then shot down two Hurricanes over the Isle of Wight on 12 August 1940. On 25 August, Mayer shot down a Hurricane for his 15th victory, possibly that of Flight Lieutenant Alfred Bayne of No. 17 Squadron, who bailed out.[14] Alternatively, according to military aviation historians Christopher Shores and Clive Williams, his victim may have been Pilot Officer Jacques Philippart who bailed out and came down in the English Channel and subsequently died.[15] The next day Mayer shot down two Spitfires. One of his victim was ace Sergeant Cyril Babbage of No. 602 Squadron, who bailed out.[16]Hauptmann Mayer was awarded the Knight's Cross of the Iron Cross (Ritterkreuz des Eisernen Kreuzes) on 3 September.[17]
Mayer was made Gruppenkommandeur (group commander) I. Gruppe of JG 53 on 1 September 1940, he replaced Hauptmann Albert Blumensaat who was transferred. Command of 1. Staffel was passed on to Oberleutnant Hans Ohly.[18] He recorded his 30th victory on 15 September. On 17 October 1940, Mayer took off in Bf 109 E-7 (Werknummer 4138—factory number) on a test flight and never returned, his body washing up on the English coast 10 days later.[19] He was possibly a victim of Flying Officer Desmond McMullen or Sergeant John Burgess, both from No. 222 Squadron RAF.[20] Mayer was the first Luftwaffe Knights Cross recipient to be killed in action.[21] He is buried at Hawkinge Cemetery, Kent.[22] Command of I. Gruppe was then given to Hauptmann Hans-Heinrich Brustellin.[18]
Summary of career
Aerial victory claims
According to Obermaier, Mayer was credited with 39 aerial victories, eight in the Spanish Civil War and 31 on the Western Front of World War II.[2] Mathews and Foreman, authors of Luftwaffe Aces — Biographies and Victory Claims, researched the German Federal Archives and found documentation for 28 aerial victory claims. This number includes six claims during the Spanish Civil War and 22 over the Western Allies.[6]
Chronicle of aerial victories
This and the ♠ (Ace of spades) indicates those aerial victories which made Mayer an "ace-in-a-day", a term which designates a fighter pilot who has shot down five or more airplanes in a single day.
This and the ? (question mark) indicates information discrepancies listed by Forsyth, Prien, Stemmer, Rodeike, Bock, Mathews and Foreman.
Claim
Date
Time
Type
Location
Claim
Date
Time
Type
Location
– 1. Staffel of Jagdgruppe 88 –[6] Spanish Civil War
Fellgiebel, Walther-Peer[in German] (2000) [1986]. Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939–1945 — Die Inhaber der höchsten Auszeichnung des Zweiten Weltkrieges aller Wehrmachtteile [The Bearers of the Knight's Cross of the Iron Cross 1939–1945 — The Owners of the Highest Award of the Second World War of all Wehrmacht Branches] (in German). Friedberg, Germany: Podzun-Pallas. ISBN978-3-7909-0284-6.
Goss, Chris (2018). Knights of the Battle of Britain — Luftwaffe Aircrew Awarded the Knight's Cross in 1940. Yorkshire, UK: Pen and Sword Books. ISBN978-1-52672-651-3.
Goss, Chris (2020). Brothers in Arms: The Story of a British and a German Fighter Unit, August to December 1940. Havertown: Pen & Sword Books. ISBN978-1-5267-8292-2.
Laureau, Patrick (2010). Condor: The Luftwaffe in Spain, 1936–39. Stackpole Books. ISBN978-0-8117-0688-9.
Mathews, Andrew Johannes; Foreman, John (2015). Luftwaffe Aces — Biographies and Victory Claims — Volume 3 M–R. Walton on Thames: Red Kite. ISBN978-1-906592-20-2.
Obermaier, Ernst (1989). Die Ritterkreuzträger der Luftwaffe Jagdflieger 1939 – 1945 [The Knight's Cross Bearers of the Luftwaffe Fighter Force 1939 – 1945] (in German). Mainz, Germany: Verlag Dieter Hoffmann. ISBN978-3-87341-065-7.
Prien, Jochen (1997). Jagdgeschwader 53 A History of the "Pik As" Geschwader March 1937 – May 1942. Atglen, Pennsylvania: Schiffer Military History. ISBN978-0-7643-0175-9.
Prien, Jochen; Stemmer, Gerhard; Rodeike, Peter; Bock, Winfried (2000a). Die Jagdfliegerverbände der Deutschen Luftwaffe 1934 bis 1945—Teil 1—Vorkriegszeit und Einsatz über Polen—1934 bis 1939 [The Fighter Units of the German Air Force 1934 to 1945—Part 1—Pre-War Period and Action over Poland—1934 to 1939] (in German). Eutin, Germany: Struve-Druck. ISBN978-3-923457-54-0.
Prien, Jochen; Stemmer, Gerhard; Rodeike, Peter; Bock, Winfried (2001). Die Jagdfliegerverbände der Deutschen Luftwaffe 1934 bis 1945—Teil 2—Der "Sitzkrieg"—1.9.1939 bis 9.5.1941 [The Fighter Units of the German Air Force 1934 to 1945—Part 2—The "Phoney War"—1 September 1939 to 9 May 1940] (in German). Eutin, Germany: Struve-Druck. ISBN978-3-923457-59-5.
Prien, Jochen; Stemmer, Gerhard; Rodeike, Peter; Bock, Winfried (2000b). Die Jagdfliegerverbände der deutschen Luftwaffe 1934 bis 1945 Teil 3—Einsatz in Dänemark und Norwegen 9.4. bis 30.11.1940—Der Feldzug im Westen 10.5. bis 25.6.1940 [Fighter Pilot Association of the German Luftwaffe 1934 to 1945 Part 3—Assignments in Denmark and Norway 9 April to 30 November 1940—The campaign in the West 10 May to 25 June 1940] (in German). Struve-Druck. ISBN978-3-923457-61-8.
Prien, Jochen; Stemmer, Gerhard; Rodeike, Peter; Bock, Winfried (2002). Die Jagdfliegerverbände der Deutschen Luftwaffe 1934 bis 1945—Teil 4/II—Einsatz am Kanal und über England—26.6.1940 bis 21.6.1941 [The Fighter Units of the German Air Force 1934 to 1945—Part 4/II—Action at the Channel and over England—26 June 1940 to 21 June 1941] (in German). Eutin, Germany: Struve-Druck. ISBN978-3-923457-64-9.
Scherzer, Veit (2007). 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] (in German). Jena, Germany: Scherzers Militaer-Verlag. ISBN978-3-938845-17-2.
Shores, Christopher; Williams, Clive (1994). Aces High: A Tribute to the Most Notable Fighter Pilots of the British and Commonwealth Forces in WWII. London: Grub Street. ISBN1-8-9869-7000.
Die Wehrmachtberichte 1939-1945 Band 1, 1. September 1939 bis 31. Dezember 1941 (in German). München: Deutscher Taschenbuch Verlag GmbH & Co. KG. 1985. ISBN3-423-05944-3.
Military offices
Preceded by
Hauptmann Albert Blumensaat
Commander of I. Gruppe of Jagdgeschwader 53 1 September 1940 – 17 October 1940
