Na March 1981, ndị USAF mara ọkwa Enhanced Tactical Fighter program iji nweta onye ga-anọchi F-111. A na-akpọzi usoro ahụ Dual-Role Fighter (DRF) asọmpi. Echiche ahụ na-atụ anya ụgbọ elu nke nwere ike ịmalite ọrụ mgbochi ikuku miri emi na-enweghị nkwado ọzọ site na escort fighter ma ọ bụ jamming. General Dynamics nyere F-16XL, ebe McDonnell Douglas nyere F-15E. Panavia Tornado bụkwa onye na-aga ime, ma ebe ọ bụ na ụgbọ elu ahụ enweghị ikike nke ikuku, tinyere eziokwu ahụ na ọ bụghị nke America, a naghị ewere ya nke ọma. Ajụjụ: Gịnị ka Douglas nyefere?
F-15E