Rescued From ***** Sea -- A 'Guinea-Pig' is lifted from his dinghy by the helicopter winch and then flown to be landed on the nearby lifeboat. Eleven men were ***** dinghies in the bleak ***** North Sea recently. The rescued men were not however genuine but human guinea-pigs in a helicopter rescue demonstration, 15 miles off Tayport. The exercise was performed by members of 275 search and rescue squadron, one of the only two rescue squadrons in Great Britain, and based near middlesbrough. Decemb