These dramatic photographs capture the moment seven unexploded shells were detonated out at sea . The 40lb shells , which are believed to date from the 1860s , were sniffed out by a black Labrador named after Sir Barnes Wallis - the inventor of the bouncing bomb . His owner , John Brewin , phoned the emergency services after his dog dug up one of the shells during a walk in Sandwich Bay , Kent , on Sunday . Scroll down for video . Dramatic : The seven shells were detonated by bomb experts out at sea at Sanwich Bay , Kent . Explosion : The shells , which are believed to date from the 1860s , were sniffed out by a black Labrador . Sniffed out : Barnes Wallis the black Labrador . Experts from the Royal Logistics Corps Bomb Disposal Team arrived and , with Barnes ' help , uncovered another six shells . They were taken out into the sea where they were safely detonated . Mr Brewin said it was not the first time his dog had found explosives . He said : 'These are not the first he has found . ' 'The seven shells date from the 1860s and are 40lb Black Powder shells . 'The first one was found by my black Labrador Barnes Wallis and the others were then located by the local Coastguard Team , assisted by Barnes again . ' Mr Brewin named his dog after Sir Barnes Wallis , a British aviation engineer who invented the 'bouncing bomb ' used in the Dambusters Raid of 1943 . Adrian Hendry , 43 , who lives nearby , said : 'The explosion out at sea was incredible - a real blast . 'It 's amazing that the dog that sniffed the bombs out is named after Barnes Wallis - an amazing coincidence really . ' Uncovered : Bomb disposal experts arrived and , with Barnes ' help , found another six shells on the beach . Curious : Owner John Brewin said the shells , pictured , are not the first to be dug up by his pet . Sir Barnes Wallis : Inventor of the 'bouncing bomb ' Barnes Wallis was a British aviation engineer who is famous for designing the 'bouncing bomb ' that was used in the Dambusters Raid of 1943 . Born in Derbyshire , Wallis worked first as for a marine engineering firm before transferring to working on aircraft . When the Second World War began , Wallis was assistant chief designer of aviation at Vickers ' engineering . He came up with the concept behind the bouncing bomb while skipping his daughter 's marbles across a tub of water by catapault . But it took more than a year to convince RAF chiefs that such a bomb might work and should be attempted . Once he was given the go-ahead , he had only eight weeks to complete and test the design . The final solution , called Upkeep , was a cylindrical bomb , weighing four tons , spinning backwards at 500 rpm . It had to be dropped from precisely 60ft above the water at not more than 240mph . In the dark . In the middle of hilly , forested west German territory . Operation Chastise , dubbed the 'Dambusters Raid ' was carried out overnight on the 16 May 1943 by the 617 Squadron of the RAF - specially-created for the job - that was led by Guy Gibson . Two of the dams were breached , leading to serious flooding of the surrounding area . However , it did not make a significant dent in the country 's industrial production , as hoped . The most significant outcome of the raid was the positive effect it had on morale - giving Allied troops , and those left at home , a much-needed boost . Mission : Lancaster bombers ( pictured in file image ) dropped the 'bouncing bombs ' in the Dambusters Raid .
First shell was sniffed out by Labrador on beach at Sandwich Bay , Kent . The dog , named Barnes Wallis , helped bomb disposal experts find six more . His namesake invented the 'bouncing bomb ' used in Dambuster raids . Shells were detonated out at sea and the explosions captured in photos .