Valentich: '...it's not an aircraft' then 17 seconds of metallic scraping and go

Australia, Bass Strait, October 1978. 20yo pilot Frederick Valentich, flying a Cessna 182 to King Island, radios Melbourne flight service that there's a large aircraft pacing him, four bright landing lights, going way too fast. He says it's orbiting above him. Controller asks what aircraft, Valentic……