3 , ▁Sch n au fer ▁claimed ▁ 2 1 ▁further ▁aer ial ▁vict ories ▁in ▁R ump el hardt ' s ▁absence ; ▁ 1 2 ▁with ▁Le ut nant ▁Dr . ▁Leo ▁Bar o , ▁five ▁with ▁Ober feld web el ▁Er ich ▁Hand ke , ▁two ▁with ▁Ober le ut nant ▁Fre ym ann ▁and ▁two ▁with ▁Unter off iz ier ▁Hein z ▁B är w olf ▁as ▁his ▁radio ▁operators . ▁Unter off iz ier ▁Hein z ▁W en ning ▁had ▁also ▁flow n ▁with ▁Sch n au fer ▁on ▁three ▁fl ights ▁while ▁R ump el hardt ▁was ▁out ▁ill . ▁ ▁II ./ N J G   1 ▁saw ▁little ▁action ▁in ▁the ▁first ▁few ▁months ▁of ▁ 1 9 4 3 , ▁and ▁Sch n au fer ▁did ▁not ▁claim ▁his ▁next ▁aer ial ▁victory ▁until ▁ 1 4 ▁May ▁ 1 9 4 3 . ▁II ./ N J G   1 ▁H imm el b ett ▁control ▁areas ▁were ▁located ▁to ▁catch ▁the ▁bom bers ▁heading ▁for ▁the ▁Ru hr ▁Area . ▁Bom ber ▁Command ▁had ▁made ▁only ▁ten ▁major ▁attacks ▁in ▁that ▁region ▁from ▁January ▁to ▁April ▁ 1 9 4 3 . ▁Con sequently , ▁II ./ N J G   1 ▁claimed ▁no ▁vict ories ▁in ▁January , ▁two ▁in ▁February , ▁one ▁in ▁March ▁and ▁three ▁in ▁April . ▁Sch n au fer ' s ▁number ▁of ▁aer ial ▁vict ories ▁increased ▁again ▁during ▁the ▁Battle ▁of ▁the ▁Ru hr