 Undeterred, his work soon attracted the attention of Lord Mountbatten, the First Sea Lord of the Royal Navy, who arranged for a demonstration of his model to Admiralty representatives and patent officials in 1956.One of the Admiralty observers, Ron Shaw, was impressed by the concept and provided valuable support.The work was classified as an official secret for over four years, but neither the Royal Air Force, Royal Navy, or British Army seemingly gave the project any serious interest.