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Hans Guido Mutke (25 March 1921 – 8 April 2004) was a fighter pilot for the German Luftwaffe during World War II. He was born in Neisse, Upper Silesia (now Nysa, Poland). On 25 April 1945, Mutke landed at Dübendorf, Switzerland, flying the Me262A-1a jet fighter, 'White 3', from 9. ''Staffel'', ''Jagdgeschwader'' 7. He claimed that he got lost during a combat mission and landed there by mistake, although there were suspicions that he'd defected. The Swiss authorities never attempted to fly the plane, keeping it in storage and returning it to Germany on 30 August 1957. He sued the post-war German government, unsuccessfully, for the return of the plane, claiming it was his own property. Mutke also made the controversial claim that he broke the sound barrier in 1945 in an Me 262, but mainstream opinion continues to regard Chuck Yeager as the first person to achieve this milestone in 1947 in a Bell X-1. ==The flight== On 9 April 1945, ''Fähnrich'' Mutke, part of the ''Ergänzungs-Jagdgeschwader 2'' (EJG 2) conversion squadron, 3rd flight, took off from Lagerlechfeld in his Messerschmitt Me 262, marked ''Weiße 9'', for a planned high-altitude flight. He was climbing through at an altitude of 12,000 m (36,000 ft) in near perfect weather with a visibility of over 100 km, listening to the radio conversations, when his chief instructor Oberstleutnant Heinz Bär detected a P-51 Mustang approaching the plane of another comrade, Unteroffizier Achammer, from behind. Mutke went into a steep 40° dive with full engine power. While passing through the altitude of 12,000 m, his Me 262 started to vibrate and began swinging from side to side. The speedometer was stuck against its limit of 1,100 km/h (682 mph) (the maximum speed of the Me 262 is 870 km/h). The speed of sound is 1,062 km/h (670 mph) at an altitude of 12,000 m, depending on the environmental variables. The shaking intensified, and Mutke temporarily lost control of his plane. He reported that with the speedometer still off the scale he attempted to recover from the uncontrollable dive by adjusting the main tailplane incidence angle. Rather than just having an elevator flap, the Me 262 could change the angle of incidence of the whole tailplane, a design feature that was later added to the Bell X1. Suddenly, the buffeting stopped, and control resumed for a few seconds. Mutke throttled back and his engines flamed out, and after the short period of smooth flight, the buffeting resumed and the aircraft began shaking violently again. He fought to regain control and re-light the engines eventually reducing the speed below 500 km/h. After a difficult landing, it was found that his plane was missing many rivets and also had distorted wings. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hans Guido Mutke」の詳細全文を読む スポンサード リンク
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