and with no luck, he ejected when believed to have been Supersonic.
Tony was supersonic when he ejected. He certainly lost control of the aircraft before ejecting but I don't recall why.
I understand he died after a car accident in UK a few years ago. The Pprune Test Pilot Forum would have more details and Pprune contributor "Milt" was a test pilot at Laverton when the Mirage accident occurred.
Meanwhile thanks for the Mirage glide information so far.