'It is not an aircraft' — pulled the Valentich tape transcript, my honest take

Everybody knows the spooky version: young Aussie pilot, Bass Strait, October 1978, radios Melbourne that something's pacing him 1000ft above, then says 'it's not an aircraft,' then 17 seconds of metallic scraping sound and he's gone with the Cessna, never found. I wanted to be the skeptic in the roo……