Rudolf Schoenert

A map of part of the Kammhuber Line. The 'belt' and night fighter 'boxes' are shown.

Following the 1939 aerial Battle of the Heligoland Bight, Royal Air Force (RAF) attacks shifted to the cover of darkness, initiating the Defence of the Reich campaign.[2] By mid-1940, Generalmajor (Brigadier General) Josef Kammhuber had established a night air defense system dubbed the Kammhuber Line. It consisted of a series of control sectors equipped with radars and searchlights and an associated night fighter. Each sector named a Himmelbett (canopy bed) would direct the night fighter into visual range with target bombers. In 1941, the Luftwaffe started equipping night fighters with airborne radar such as the Lichtenstein radar. This airborne radar did not come into general use until early 1942.[3]

In June 1941, Schoenert joined 4./Nachtjagdgeschwader 1 (NJG 1—1st Night Fighter Wing) at Bergen in northern Holland. He was credited with his first aerial victory on the night of 8/9 July 1941 when he claimed an Armstrong Whitworth Whitley bomber shot down at 02:51 60 kilometres (37 miles) northwest of Vlieland.[4] His total stood at 22 by 25 July 1942 and he was awarded the Knight's Cross of the Iron Cross (Ritterkreuz des Eisernen Kreuzes).

Schoenert is recognized as the instigator of upward-firing armament in German night fighter force. The concept, dubbed Schräge Musik (Jazz Music) was first suggested by him in 1941. Kammhuber initially rejected the idea based on reports filed by Helmut Lent and Werner Streib. Following the Knight's Cross presentation, Schoenert again petitioned the idea to Kammhuber who approved the installation of upward-firing armament in three Dornier Do 217J, one of which issued to Schoenert.[5]

On 1 December 1942, Schoenert was made Gruppenkommandeur (group commander) of the newly formed II. Gruppe of Nachtjagdgeschwader 5 (NJG 5—5th Night Fighter Wing).[6] The Gruppe was equipped with Messerschmitt Bf 110 heavy fighter. Schoenert brought to the Gruppe his modified Do 217 fighter which was inspected by Oberfeldwebel Paul Mahle, an armorer attached to II. Gruppe. Mahle analyzed the concept and installed upward-firing guns into the cockpit of two Bf 110 night fighters.[5][7]

Schoenert claimed the first aerial victory with Schräge Musik in May 1943.[8]

On 5 August 1943, Schoenert was appointed Gruppenkommandeur of I. Gruppe of Nachtjagdgeschwader 100 (NJG 100—100th Night Fighter Wing), replacing Hauptmann Heinrich Prinz zu Sayn-Wittgenstein who was transferred.[9] NJG 100 was operating on the Eastern Front, where he claimed to have shot down 30 Soviet aircraft by early 1944. While there, he utilised a Junkers Ju 87D-5 "Stuka" dive-bomber with the configuration in an effort to target the slow-flying Soviet biplane fighter-bombers.[10] On 1 January 1944, Schoenert was appointed commander of Nachtjagdgruppe 10 (NJGr 10—10th Night Fighter Group) and transferred command of I. Gruppe of NJG 100 to Major Alois Lechner.[11]

On 11 April 1944, Schoenert was awarded the Knight's Cross of the Iron Cross with Oak Leaves (Ritterkreuz des Eisernen Kreuzes mit Eichenlaub), the 450th soldier to receive this distinction. The presentation was made by Adolf Hitler at the Berghof, Hitler's residence in the Obersalzberg of the Bavarian Alps, on 5 May 1944.[12] Also present at the ceremony were Anton Hafner, Otto Kittel, Günther Schack, Emil Lang, Alfred Grislawski, Erich Rudorffer, Martin Möbus, Hans-Karl Stepp, Wilhelm Herget, Günther Radusch, Otto Pollmann and Fritz Breithaupt, who all received the Oak Leaves on this date.[13]

On 15 November, Schoenert and Leutnant Karl Schnörrer, Oberst Gordon Gollob, Major Georg Christl, Hauptmann Heinz Strüning, Major Josef Fözö formed the guard of honor at Walter Nowotny funeral at the Zentralfriedhof in Vienna. Nowotny had been killed in action on 8 November 1944. The eulogy was delivered by Generaloberst Otto Deßloch.[14]

On 6 March 1945, Schoenert succeeded Oberstleutnant Walter Borchers as Geschwaderkommodore (wing commander) of NJG 5.[6] During a sortie east of the Elbe on 27 April 1945, an electrical fault rendered Schonert's radar unserviceable and his Junkers Ju 88G was shot down by a Royal Air Force (RAF) de Havilland Mosquito. He survived and was rescued by German troops.

Schoenert survived the war. Schoenert's radio and wireless operator was usually Oberfeldwebel Johannes Richter.

According to US historian David T. Zabecki, Schoenert was credited with 64 aerial victories.[15] Obermaier lists Schoenert with 65 aerial victories claimed in 376 combat missions, including 35 Soviet aircraft on the Eastern Front.[16] Foreman, Parry and Mathews, authors of Luftwaffe Night Fighter Claims 1939 – 1945, researched the German Federal Archives and found records for 59 nocturnal victory claims.[17] Mathews and Foreman also published Luftwaffe Aces — Biographies and Victory Claims, listing Schoenert with 62 claims.[18]

• Iron Cross (1939)
  • 2nd Class (10 July 1941)[57]
  • 1st Class (22 July 1941)[57]
• Honour Goblet of the Luftwaffe (Ehrenpokal der Luftwaffe) on 5 January 1942[16]
• German Cross in Gold on 18 May 1942 as Oberleutnant in the 4./Nachtjagdgeschwader 2[58]
• Knight's Cross of the Iron Cross with Oak Leaves
  • Knight's Cross on 25 July 1942 as Oberleutnant of the Reserves and Staffelkapitän of the 4./Nachtjagdgeschwader 2[59][60]
  • 450th Oak Leaves on 11 April 1944 as Major of the Reserves and commander of Nachtjagdgruppe 10[59][61]