"Dave Liquorice" wrote in message
ll.com...
On Tue, 28 Jun 2005 17:21:26 +0100, Pharmanaut wrote:

I used to hear this in Torbay. Long, deep low rumbles out to sea.

Concorde? Though a sonic boom is a fairly distinctive b-boom noise.
Used to hear it Bristol occasionally.

Not Concorde, the schedule was as regular as clockwork and always the
classic "double" boom at 9pm or thereabouts. These other rumblings would be
loooooong, drawn out and pulsing, ant time day or night.

Pharm..