‘ego’, a compact semi-submarine designed by raonhaje



billing itself as the world’s ‘first compact semi submarine’, the ‘ego’ craft by korean company raonhaje is built around a submergeable core, permitting the private enclosed underwater excursions of individuals, couples, and families.


with a maximum speed of five knots, the boat is motored through podded propulsion, powered by 8 12-volt marine batteries. in addition to being more ecologically sustainable, the electric design also permits the craft to bypass restrictions on entry into protected marine environments.


a single full battery charge is obtained in six to ten hours and provides a run time varying from about four hours at top speed to eight hours at consistent cruising speed.



personal semi submarine: ego by raonhaje view of the central hub, on land (left) and submerged (right)

because ‘ego’ is designed for personal use, its steering system is modeled after a car’s to increase the ease of operation, and is composed of an accelerator pedal instead of a throttle lever and an intuitive direction switch. no special license is required for the craft’s operation.

personal semi submarine: ego by raonhaje left: full view of the surface section of the craft right: detail on deck platform

prototypes of the model have already been produced and are available for test driving. the two-seat ‘ego’ is expected to be commerecially available in october 2011, with a 4-seat model still in development.

personal semi submarine: ego by raonhaje design diagrams for ‘ego’

video depiction of concept renders and prototype photographs

via gizmodo