Walter Loos (11 April 1923 – 27 October 2004) was a former Luftwaffe fighter ace and recipient of the Knight's Cross of the Iron Cross during World War II. During his career, he was credited with 38 aerial victories in 66 missions. World War II In January 1944, Loos was posted to IV. Gruppe (4th group) of Jagdgeschwader 3 "Udet" (JG 3—3rd Fighter Wing). At the time, the Gruppe was commanded by Major Franz Beyer and was fighting in Defense of the Reich. On 26 February, IV. Gruppe moved to the airfield at Salzwedel where it remained until 7 June. That day, Major Friedrich-Karl Müller took command of the Gruppe after Beyer had been killed in action. Defense of the Reich In IV. Gruppe, Loos was assigned to Sturmstaffel 1, headed by Major Hans-Günter von Kornatzki. The Sturmstaffel was an experimental unit flying the so-called Sturmböcke (battering ram) up-gunned Focke-Wulf Fw 190 A-7 and A-8 aircraft. On 8 May, the Sturmstaffel became the 11. Staffel (11th squadron) and was then placed under the command of Oberleutnant Werner Gerth. Loos was credited with his first aerial victory on 6 March when the United States Strategic Air Forces (USAAF) Eighth Air Force sent 730 heavy bombers to Berlin. In the vicinity of Braunschweig, IV. Gruppe made a head-on attack and Loos was credited with an Herausschuss (separation shot)—a severely damaged heavy bomber forced to separate from its combat box which was counted as an aerial victory—over a Boeing B-17 Flying Fortress bomber. On 22 April, 803 bombers of the USAAF Eighth Air Force targeted various German transportation targets in western Germany, in particular the railroad classification yard in Hamm. IV. Gruppe was scrambled at 18:20 in Salzwedel and engaged Consolidated B-24 Liberator bombers from the 2nd Air Division at 19:40 in a 20 minute aerial during which Loos shot down one of the B-24 bombers. Flying the Ta 152 Loos joined the Geschwaderstab (headquarters unit) of Jagdgeschwader 301 (JG 301—301st Fighter Wing) in April 1945. The Geschwaderstab of JG 301 had been equipped with the Focke-Wulf Ta 152 H in March and was commanded by Oberstleutnant Fritz Aufhammer. The Geschwaderstab moved to an airfield at Neustadt-Glewe on 10 April. On 20 April, Oberfeldwebel Loos received the Knight's Cross of the Iron Cross (). That day, fellow JG 301 pilot Oberfeldwebel Willi Reschke was also awarded the Knight's Cross. Loos claimed his first