 The wing operated the Heinkel He 111 exclusively until 1943, when only two "staffeln" of its four "Gruppen" (Groups) used the Junkers Ju 88C.Founded in May 1939, the "Geschwader" (Wing) was a product of a late surge in expanding the size of the "Luftwaffe" medium bomber forces.The formation of the wing began on 1 May 1939 with the creation of the command ("Stab") "Gruppe" (Group) and I. and II./KG 55 (first and second groups).