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The Schweinfurt–Regensburg mission was an air combat battle in World War II. A strategic bombing attack flown by B-17 Flying Fortresses of the U.S. Army Air Forces on August 17, 1943, it was conceived as an ambitious plan to cripple the German aircraft industry. The mission was also known as the "double-strike mission" because it entailed two large forces of bombers attacking separate targets in order to disperse fighter reaction by the Luftwaffe, and was the first "shuttle" mission, in which all or part of a mission landed at a different field and later bombed another target returning to its base. After being postponed several times by unfavorable weather, the operation, known within the Eighth Air Force as "Mission No. 84", was flown on the anniversary of the first daylight raid by the Eighth Air Force. Mission No. 84 was a strike by 376 bombers of sixteen bomb groups against German heavy industry well beyond the range of escorting fighters. The mission inflicted heavy damage on the Regensburg target, but at catastrophic loss to the force, with 60 bombers lost and many more damaged beyond economical repair. As a result, the Eighth Air Force was unable to follow up immediately with a second attack that might have seriously crippled German industry. When Schweinfurt was finally attacked again two months later, the lack of long-range fighter escort had still not been addressed and losses were even higher. As a consequence, deep penetration strategic bombing was curtailed for five months. == The mission plan == Because of diversions of groups to the invasion of North Africa, the bomber force in England had been limited in size to four groups of B-17s and two of B-24s until May 1943. At that time, and in conjunction with the Pointblank Directive to destroy the Luftwaffe in preparation for Operation Overlord, the B-17 force had expanded fourfold and was organized into the 1st and 4th Bombardment Wings (which due to their large size would soon be re-designated Bomb Divisions). The 1st Bombardment Wing, which included all of the original B-17 groups, was based in the English Midlands while the 4th Bombardment Wing stations were located in East Anglia. Pointblank operations in April and July 1943 had concentrated solely on the production of the Fw 190 at factories in Bremen, Kassel, and Oschersleben, and although serious losses to the bomber forces had occurred, the attacks had been successful enough to warrant attacking those manufacturing Messerschmitt Bf 109s. The production of Bf 109s (and almost half of all German fighters) was located in Regensburg and in Wiener Neustadt, Austria. To attack these in sufficient force, "Operation Juggler" was conceived,〔Ramsey, John F. ''Air Force Historical Study No. 110 The War Against the Luftwaffe: AAF Counter-Air Operations April 1943 - June 1944'', Air Force Historical Research Agency〕 in which the fighter production plants in Wiener Neustadt were targeted for attack by B-24 Liberators of the Ninth Air Force based in Libya, and Regensburg by B-17s of the Eighth Air Force. The original mission date of August 7 could not be met because of bad weather, and the B-24s flew Operation Juggler on August 13 without participation by the Eighth Air Force, which was still hampered by unacceptable weather conditions. To successfully complete its portion of the attack, the Eighth Air Force decided to attack a target in central Germany as well as Regensburg to divide and confuse German air defenses.〔Freeman, ''The Mighty Eighth'', p.67; Miller, ''Masters of the Air'', p.195; Coffey, ''Decision Over Schweinfurt'', p.3.〕 The 4th Bombardment Wing, using B-17s equipped with "Tokyo (fuel) tanks" for longer range, would attack the Messerschmitt Bf 109 plants in Regensburg and then fly on to bases in Bône, Berteaux and Telergma (French Algeria). The 1st Bombardment Wing, following it, would turn northeast and bomb the ball-bearing factories of Schweinfurt (where almost the entire production of bearings was centralized) and by doing so catch German fighter aircraft on the ground re-arming and refueling. Because of limited range thanks to (inexplicably) not employing drop tanks,〔Terdoslavich, William. "Raids on Ploesti and Schweinfurt: August 1943 and October 1943", in Fawcett, Bill, ed. ''How To Lose WWII'' (New York: Harper, 2010), p.147.〕 escorting P-47 Thunderbolt fighters would be able to protect the bombers only as far as Eupen, Belgium, which was roughly an hour's flying time from both of the targets.〔Coffey, ''Decision Over Schweinfurt'', pp. 7, 19, 56, and 59.〕 Two supporting attacks were also made a part of the overall mission plan. The first, a diversionary attack, involved the bombing of three locations along the French and Dutch coast: the German airfields at Bryas-Sud and Marck by American B-26 Marauder and Royal Air Force Mitchell medium bombers, and the marshalling yards at Dunkirk by other Mitchells, all timed to coincide with the Regensburg strike.〔Woods, "Combat Claims and Casualties", 17 August 43, "Ramrod 206 Part III" and "Ramrod 206 Part IV", p.111-112.〕 The second was a series of attacks on Luftwaffe fighter fields at Poix, Lille-Vendeville, and Woensdrecht by Hawker Typhoons of the RAF simultaneous with the diversionary attack, and Poix by two groups of B-26s in the afternoon as the Schweinfurt force was returning. 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「Schweinfurt–Regensburg mission」の詳細全文を読む スポンサード リンク
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