of ensuring the preservation and growth of fighter aircraft production. It superseded the Ministry of Aviation in this jurisdiction. At the head of the Jägerstab was armaments minister Albert Speer, as Deputy the Secretary of State Erhard Milch, as Chief of Staff Karl Saur. Their plan to protect the aircraft industry, especially the manufacture of the jet-powered Messerschmitt Me 262, entailed the relocation of assembly plants into underground bunkers. This idea was not entirely new, as a similar (but never realized) proposal had already been considered in October 1943. The Jägerstab's plan included six locations in which partially underground bunkers were to be built, and at first called for the bunkers to be encompass a minimum area of 600,000 to 800,000 m2 apiece. However, by the time of the Jägerstab meeting of 17 March 1944, the projected size of the each building had sunk to 60,000 m2. By June 1944 the invasion of the allies had forced the Jägerstab to focus in the end on two locations in Upper Bavaria. Three bunkers were to be built at Kaufering in the Landsberg am Lech district under the codename "Ringeltaube" (common wood pigeon), while the codename "Weingut I" (Vineyard I) was chosen for the factory in the . According to the testimony of Franz Xaver Dorsch, who was responsible for the construction, the fighter factory would be completed in five to six months at best. Speer later wrote in his memoirs that at the time it was already not difficult to foresee that the project would not be completed within the planned time. The location in the area of Mühldorf fulfilled all of the important requirements. There was an adequately solid gravel bed beneath the terrace of the Inn and the water table was adequately deep. Strategically the important railway juncture of Mühldorf was advantageous, and the wide-ranging forest of the Mühldorfer Hart would offer excellent camouflage for the completed bunker. Construction Management The chief construction office of Organisation Todt (OT) in Berlin, and therefore Speer's deputy in the OT Franz Xaver Dorsch, was responsible for the planning and organization of the project. On site the "OT-Einsatzgruppe Deutschland VI" (OT-Task Force Germany VI) supervised the construction from their offices in Ampfing, Mettenheim and Ecksberg at Mühldorf. Architect Bruno Hofmann was the "OT Oberbauleiter" (Chief Construction Leader). The technical aspects of the construction were assigned to the company (P & Z). Other companies