Typhoon IPA.1,
ZJ699, departs to the Irish Sea test area on December 21, 2004.
A double sonic boom was later heard as the aircraft
flew a course stretching from North of Conway to the Solway Firth.
Apparently the boom was also heard down in Winsford, Cheshire,
and also featured on BBC1 North West news that evening: viewers
having phoned in to report an earth tremor! [Photo: Paul Tomlin] |
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