The Soviet Union tried to develop a Flying submarine during World War II. The design could have operated at 150 knots in the air and 3 knots in the water. Metal plates sealed the engines shut. The design never got off the drawing board. [1]
The US Navy is currently looking at a Cormorant (aircraft) a drone aircraft launched from a submarine.
A wide variety of flying submersible craft can be found in X-COM: Terror from the Deep. X-COM Terror from the Deep is a Computer game, the sequel to (or X-COM UFO Defense in North America) and the second part
The Voyage to the Bottom of the Sea (TV series) featured a flying submarine as did the Japanese Toho Studios film Atragon. Voyage to the Bottom of the Sea was a 1960s American Science Fiction Television series based on the 1961 film of the same name. is a large Japanese Independent film Studio. It is headquartered in Chiyoda Tokyo, and is one of the core companies of the Hankyu Hanshin Toho Group Atragon, released in Japan as, is a 1963 Toho Tokusatsu Film based on a series of juvenile adventure Novels under