The Princess of Wales burst into a fit of giggles when a lifejacket she was wearing suddenly inflated during a visit to a Royal Navy air base.Kate, who is Commodore-in-Chief of the Fleet Air Arm, erupted in laughter as she was being shown around Royal Naval Air Station (RNAS) Yeovilton in Somerset - one of the busiest military airfields in the UK.During the visit, the princess spent time in the air traffic control tower and spoke over the radio with the crew of a Wildcat helicopter as it came in

The Princess of Wales burst into a fit of giggles when a lifejacket she was wearing suddenly inflated during a visit to a Royal Navy air base.Kate, who is Commodore-in-Chief of the Fleet Air Arm, erupted in laughter as she was being shown around Royal Naval Air Station (RNAS) Yeovilton in Somerset - one of the busiest military airfields in the UK.During the visit, the princess spent time in the air traffic control tower and spoke over the radio with the crew of a Wildcat helicopter as it came in to land.She also heard the roar of an F-35B Lightning from RAF Marham as it "buzzed" the control tower.For the final leg of her visit, the princess visited the Wildcat training centre and assisted the crews who were being trained to load the anti-shipping Sea Venom missile on to the Wildcat Mk2 helicopter.The King went to the air station for helicopter flying training in 1974, when he was Prince of Wales.More than 4,000 personnel are employed on the site, which is home to a number of frontline