 The airfield was laid out very quickly at a captured German Army Barracks (Kaserne), just to the south of Biblis after the Rhine crossing.The 850th Engineer Aviation Battalion arrived at the site on 1 April 1945 and on 2 April they had laid down a square-mesh track and sod runway, using the captured army buildings as a support area.The airfield was designated as Advanced Landing Ground "Y-78 Biblis "

The Twelfth Air Force 27th Fighter Bomber Group moved in almost immediately with its A-36 Apache ground-attack aircraft (a version of the P-51C Mustang optimized for ground support) and began flying missions in the Ruhr.