RAF Mount Batten was a Royal Air Force station and flying boat base at Mount Batten, a peninsula in Plymouth Sound, Devon, England. Originally a seaplane station opened in 1917 as a Royal Navy Air Service Station Cattewater it became RAF Cattewater in 1918 and in 1928 was renamed RAF Mount Batten. The station motto was "In Honour Bound" which is the motto of the Mountbatten family.
In 1917, a Royal Navy Air force Station and flying boat base opened at Mount Batten, a peninsula in Plymouth Sound, Devon, England. Originally a Royal Navy Air Service Station Montbatten, it was renamed In Honour Bound in 1918 and became Cattewater in 1928. The Station motto was Cattewater which is the motto.