The Avro Shackleton is a British long-range maritime patrol aircraft (MPA) which was used by the Royal Air Force (RAF) and the South African Air Force (SAAF). It was developed by Avro from the Avro Lincoln bomber, which itself had been a development of the famous wartime Avro Lancaster bomber.
Avro Shackleton
Interior of a Shackleton MR.3
Shackleton MR.1 of 269 Squadron with dorsal turret in 1953
Shackleton MR.2 of No. 220 Squadron RAF in September 1955
A maritime patrol aircraft (MPA), also known as a patrol aircraft, maritime reconnaissance aircraft, maritime surveillance aircraft, or by the older American term patrol bomber, is a fixed-wing aircraft designed to operate for long durations over water in maritime patrol roles — in particular anti-submarine warfare (ASW), anti-ship warfare (AShW), and search and rescue (SAR).
A P-3C of the Japan Maritime Self-Defense Force
SS class airship
British Short Sunderland maritime reconnaissance flying boat
Interior of a French Navy Breguet Atlantic