During World War 2, Allied submarines would lie on beds of pistol shrimp. The snapping sound made by the shrimp was so loud, it stopped the submarines from being picked up on Japanese sonar.
In 1961 Donald Reid built a Flying Submarine. It was demonstrated…
In 1961 Donald Reid built a Flying Submarine. It was demonstrated on 9 June 1964 where it dove to a depth of 6.5 feet (2 m) then flew to an altitude of 33 ft (10 m).