I remember Lightnings doing 'double bangers' at Middleton St George BoB Open days when I were a lad. It might not have been s a supersonic boom, but it seemed like one to me. Really hurt your lugs it did. They'd come in silently from the Teesside end then there'd be an enormous double bang - Ba-Bam! - as they went past followed by that magnificent kidney shaking racket. It was the Lightnings that persuaded me to join the RAF.
Then I never got to go near one ever again...
