At the outbreak of war the Royal Naval Air Service had 93 aircraft, six airships, two balloons and 727 personnel, making it larger than the Royal Flying Corps. The main roles of the RNAS were fleet reconnaissance, patrolling coasts for enemy ships and submarines, attacking enemy coastal territory and defending Britain from enemy air-raids, along with deployment along the Western Front. In 1914 the first aerial torpedo was dropped in trials performed in a Short "Folder" by Lieutenant (later Air Chief Marshal Sir) Arthur Longmore, and in August 1915, a Short Type 184 piloted by Flight Commander Charles Edmonds from sank a Turkish supply ship in the Sea of Marmara with a , torpedo.