The Grumman HU-16 Albatross is a large twin-radial engine amphibious flying boat that was utilized by the U.S. Air Force, the U.S. Navy and the U.S. Coast Guard, primarily as a search and rescue and combat search and rescue aircraft. Originally designated as the SA-16 for the USAF and the JR2F-1 and UF-1 for the USN and USCG, it was redesignated as the HU-16 in 1962.
Read more about Grumman HU-16 Albatross: Design and Development, Operational History, Civil Operations, Accidents and Incidents, Variants, Operators, Specifications (HU-16B)