Originally Posted by
chevvron
At Farnborough, all departing Hunters were required to do a short full power burst when lined up then check engine instruments before opening up to roll; this was a result of an incident where a Hunter (XE531) experienced turbine failure just after takeoff which virtually severed the tail section behind the wing root, both pilots successfully ejecting at about 100ft.
That was a 200 series avon as per F6/9 which as part of i think air test was to confirm brakes wouldn't hold at end of runway whereas the the 100 series in T7/GA11 etc would hold if i remember correctly , this was standard before the 531 crash