'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 12 8-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.
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.
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.
design diagrams for 'ego'