The DeepFlight Super Falcon is a personal submarine designed by Graham Hawkes, a former civilian ocean engineer.

[1] In 2005, Hawkes and adventurer Steve Fossett teamed up to create a submarine that could be piloted by an individual to the deepest part of the ocean.

However, in 2007 Fossett lost his life in a fatal accident in the Sierra Nevada Mountains of California before the feat could be attempted.

[4] The first test flight of the Super Falcon in 2009 ran into a few problems including getting the submersible stuck in a kelp bed, which had to be cut free with the help of a safety diver.

[5] The electricity that drives the propulsion system is from batteries,[6] the Super Falcon's cruise speed is between 2–6 knots (3.7–11.1 km/h; 2.3–6.9 mph).