▁Rock ford , ▁Illinois , ▁USA . ▁Appro xim ately ▁ 1 3 0 , 0 0 0 ▁people ▁attended ▁the ▁ 2 0 1 2 ▁event . ▁ ▁On ▁December ▁ 1 6 , ▁ 2 0 1 6 , ▁it ▁was ▁announced ▁via ▁the ▁event ' s ▁website ▁that ▁the ▁Rock ford ▁Air fest ▁would ▁be ▁can ce led ▁for ▁ 2 0 1 7 ▁and ▁would ▁not ▁run ▁in ▁future ▁years . ▁The ▁website ▁post ▁c ited ▁major ▁on going ▁development ▁at ▁Rock ford ▁International ▁Airport ▁as ▁the ▁main ▁cause ▁for ▁the ▁can cell ations . ▁ ▁History ▁The ▁air port ▁began ▁hosting ▁the ▁Rock ford ▁Air F est ▁in ▁ 2 0 0 5 . ▁From ▁ 1 9 8 6 ▁to ▁ 1 9 9 4 , ▁the ▁Gre ater ▁Rock ford ▁Airport ▁( as ▁it ▁was ▁known ▁until ▁ 2 0 0 3 ) ▁hosted ▁the ▁Mid west ▁Air F est ▁which ▁twice ▁featured ▁the ▁Air ▁Force ▁Th under bird s . ▁They ▁returned ▁again ▁in ▁ 2 0 0 6 , ▁and ▁the ▁Navy ▁Blue ▁Ang els ▁were ▁featured ▁in ▁ 2 0 0 7 . ▁The ▁F - 2 2 ▁R apt or ▁Team ▁performed ▁in ▁ 2 0 0 9 . ▁The ▁ 2 0 1 0 ▁Air F est ▁once ▁again ▁hosted ▁the ▁US AF ▁Th under bird s ▁on ▁July ▁ 3 1 ▁– ▁Aug ▁ 1 , ▁ 2 0 1 0 . ▁The ▁ 2 0 1 1 ▁Air F