4 5 th ▁F ighter - B om ber ▁Group ▁with ▁F - 8 4 ▁Th under jets ▁moved ▁to ▁Ni ag ara ▁F alls ▁from ▁Buff alo ▁Airport ▁on ▁ 1 5 ▁June ▁ 1 9 5 5 ▁and ▁moved ▁to ▁M emph is ▁on ▁ 1 6 ▁November ▁ 1 9 5 7 . ▁Two ▁ 1 5 th ▁F G ▁aircraft -- T - 3 3 ▁& ▁F - 8 6 ▁at ▁Ni ag ara ▁F alls ▁Air ▁Force ▁Base — coll ided ▁in ▁ 1 9 5 6 , ▁the ▁A FB ' s ▁medical ▁unit ▁treated ▁inj uries ▁from ▁a ▁ 1 9 5 8 ▁rail car ▁explos ion . ▁ ▁In ▁ 1 9 5 9 ▁a ▁N FA FB ▁hel ic opter ▁crash ed ▁in ▁Let ch worth ▁State ▁Park ▁searching ▁for ▁an ▁ 8 3 - year - old ▁professor ▁emer it us , <0x09> and ▁in ▁ 1 9 6 1 ▁an ▁F - 1 0 0 ▁from ▁the ▁base ▁crash ed ▁into ▁the ▁Ni ag ara ▁G orge . ▁ ▁S AGE ▁intercept ors ▁The ▁ 4 7 th ▁F IS ▁aircraft ▁were ▁modified ▁to ▁the ▁F - 8 6 L ▁autom ated ▁data ▁link ▁configuration ▁after ▁the ▁April ▁ 1 9 5 8 ▁Sy rac use ▁Air ▁Def ense ▁S ector ▁was ▁designated , ▁and ▁a ▁Gr ound ▁Air ▁Trans mit ▁Rece ive ▁station ▁was ▁built ▁to ▁relay ▁ground - control led ▁inter ception ▁commands ▁from ▁the ▁sector ' s ▁Han cock