I roto i te Maehe 1981, te USAF kauwhautia te hōtaka Enhanced Tactical Fighter ki te tiki i te whakakapi mo te F-111. te hōtaka i muri i whakaingoatia te Dual-tūranga Fighter (DRF) whakataetae. whakaaro te ariā he rererangi taea ki te whakarewa i misioni ārai rangi hohonu, kahore e rapua te tautoko anō e te escort whawhai jamming ranei. tono General Dynamics te F-16XL, i tonoa e McDonnell Douglas te F-15E. i te Panavia Tornado hoki he kaitono, engari mai i te rererangi i kore he kaha toa toa-runga rangi pono, hono ki te meka e kore te reira i te American-hanga, kihai i whakaarohia te reira tino. pātai: He aha i Douglas tuku?
te F-15E