Photograph shows a Royal Navy Sea King Mk4 helicopter being loaded onto a Royal Air Force C17 transport plane for its journey back to the United Kingdom. The Royal Navys Commando Sea King helicopters completed their final mission in Afghanistan on 30th September 2011 and are now returning to the UK to prepare for further contingency operations and convert to the newer and more capable Merlin helicopter. The helicopters, crews and engineers of 845 and 846 Naval Air Squadrons who are normally based at Royal Naval Air Station Yeovilton in Somerset, have been deploying to Afghanistan in support of Operation…