The Consolidated PBY Catalina is a flying boat of the 1930s and 1940s produced by Consolidated Aircraft and was one of the most widely used multi-role aircraft of World War II. PBYs served with every branch of the US military and in the air forces and navies of many other nations.
During World War II, PBYs were used in anti-submarine warfare, patrol bombing, convoy escorts, search and rescue missions (especially air-sea rescue), and cargo transport. So successful was the type that the last active military PBYs were not retired from service until the 1980s. Even today, over 70 years after its first flight, the aircraft continues to fly as an airtanker in aerial firefighting operations all over the world.
Sound recording of a Consolidated Aircraft PBY Catalina, May 2009, Old Warden Aerodrome.