A ground effect craft having a ground effect wing, a plurality of sponsons, and a control system is disclosed. The ground effect wing may include a fore ground effect wing and an aft ground effect wing. The ground effect wing may generate a stabilizing moment on at least one sponson to stabilize the ground effect craft. The plurality of sponsons may be dynamically coupled to the body. The plurality of sponsons may be dynamically coupled to each other. The dynamic coupling may permit the sponsons to move relatively independent of the body and each other, thereby stabilizing the ground effect craft. The ground effect craft may include a stabilizing wing.

A ground effect craft having a ground effect wing, a plurality of sponsons, and a control system is disclosed. The ground effect wing may include a fore ground effect wing and an aft ground effect wing. The ground effect wing may generate a stabilizing moment on at least one sponson to stabilize the ground effect craft. The plurality of sponsons may be dynamically coupled to the body. The plurality of sponsons may be dynamically coupled to each other. The dynamic coupling may permit the sponsons to move relatively independent of the body and each other, thereby stabilizing the ground effect craft. The ground effect craft may include a stabilizing wing.

A hovercraft having a stealth function. The hovercraft includes at least: a hull in which a cabin is provided; a power generator provided on the hull and configured to supply a lifting force with which the hull is lifted and a propelling force with which the hull is propelled; a skirt provided at a lower portion of the hull and causes the hull to be lifted by the lifting force supplied by the power generator; an opening/closing louver assembly made up of a plurality of opening/closing louvers on air intakes formed in an outer surface of the hull; and a steering louver assembly made up of a plurality of rudder louvers that are rotated and opened/closed on a port and a starboard of a rear of the opening/closing louver assembly on the outer surface of the hull.

A ground effect craft having a ground effect wing, a plurality of sponsons, and a control system is disclosed. The ground effect wing may include a fore ground effect wing and an aft ground effect wing. The ground effect wing may generate a stabilizing moment on at least one sponson to stabilize the ground effect craft. The plurality of sponsons may be dynamically coupled to the body. The plurality of sponsons may be dynamically coupled to each other. The dynamic coupling may permit the sponsons to move relatively independent of the body and each other, thereby stabilizing the ground effect craft. The ground effect craft may include a stabilizing wing.

A ground effect craft having a ground effect wing, a plurality of sponsons, and a control system is disclosed. The ground effect wing may include a fore ground effect wing and an aft ground effect wing. The ground effect wing may generate a stabilizing moment on at least one sponson to stabilize the around effect craft. The plurality of sponsons may be dynamically coupled to the body. The plurality of sponsons may be dynamically coupled to each other. The dynamic coupling may permit the sponsons to move relatively independent of the body and each other, thereby stabilizing the ground effect craft. The ground effect craft may include a stabilizing wing.

A hovercraft having a stealth function. The hovercraft includes at least: a hull in which a cabin is provided; a power generator provided on the hull and configured to supply a lifting force with which the hull is lifted and a propelling force with which the hull is propelled; a skirt provided at a lower portion of the hull and causes the hull to be lifted by the lifting force supplied by the power generator; an opening/closing louver assembly made up of a plurality of opening/closing louvers on air intakes formed in an outer surface of the hull; and a steering louver assembly made up of a plurality of rudder louvers that are rotated and opened/closed on a port and a starboard of a rear of the opening/closing louver assembly on the outer surface of the hull.

A ground effect craft having a ground effect wing, a plurality of sponsons, and a control system is disclosed. The ground effect wing may include a fore ground effect wing and an aft ground effect wing. The ground effect wing may generate a stabilizing moment on at least one sponson to stabilize the ground effect craft. The plurality of sponsons may be dynamically coupled to the body. The plurality of sponsons may be dynamically coupled to each other. The dynamic coupling may permit the sponsons to move relatively independent of the body and each other, thereby stabilizing the ground effect craft. The ground effect craft may include a stabilizing wing.

A direction control device includes a housing, a wheel shaft supported by the housing, a wheel supported by the wheel shaft, a blade shaft supported by the housing, and a blade mounted on the blade shaft. The housing has a first side and a longitudinal axis. The wheel shaft has a wheel axis and is configured to extend beyond the first side outside the housing. The wheel has a rotational axis and is configured to rotate about the rotational axis. The blade shaft is configured to extend beyond the first side outside the housing.

A ground effect craft having a ground effect wing, a plurality of sponsons, and a control system is disclosed. The ground effect wing may include a fore ground effect wing and an aft ground effect wing. The ground effect wing may generate a stabilizing moment on at least one sponson to stabilize the ground effect craft. The plurality of sponsons may be dynamically coupled to the body. The plurality of sponsons may be dynamically coupled to each other. The dynamic coupling may permit the sponsons to move relatively independent of the body and each other, thereby stabilizing the ground effect craft. The ground effect craft may include a stabilizing wing.

A ground effect craft having a ground effect wing, a plurality of sponsons, and a control system is disclosed. The ground effect wing may include a fore ground effect wing and an aft ground effect wing. The ground effect wing may generate a stabilizing moment on at least one sponson to stabilize the around effect craft. The plurality of sponsons may be dynamically coupled to the body. The plurality of sponsons may be dynamically coupled to each other. The dynamic coupling may permit the sponsons to move relatively independent of the body and each other, thereby stabilizing the ground effect craft. The ground effect craft may include a stabilizing wing.