Thanks for the info Tom,
Will keep an eye out for the dates,Also i remember the Lightnings having a race with 2 Phantoms and 2 Voodos down the runwayat Upper Heyford ,by the time the USAF had turned at the bottom of the runway the Lightnings were up at 10,000ft.After this the announcer(American of course) disqualified the R.A.F on the grounds they were flying too fast,turned out they were only just sub sonic going down and back up the runway