The underwater vehicle with variable configuration (1) comprises: a hull (2) consisting of at least four elongated elements (20), mutually articulated by means of joints (21), to form a first closed polygonal structure (F1), arranged on a plane; thrusters (3), associated in parallel with said elements (20) of the hull (2); actuating means (22), associated with said joints (21), provided for automatically modifying said first closed polygonal structure (F1), from an elongated shape configuration (AF1) to an expanded shape (EF1), corresponding to an elongated conformation of said hull (2), to determine a low hydrodynamic resistance and a longitudinal thrust of the thrusters (3) in the cruising of said underwater vehicle (1), and to a substantially isotropic conformation, wherein the same elements (20) of the hull (2), as well as the thrusters (3) are mutually angled, intended for the hovering of the same underwater vehicle (1), respectively. The latter can be suitably equipped with robotic arms (4) intended for performing maintenance or similar interventions in underwater locations.

A monolithic attitude control motor frame includes a monolithic structure including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending from the outer surface of revolution. Adjacent cavities of the plurality of cavities share a side wall or side wall portion therebetween. Each of the cavities is configured to receive an attitude control motor. A monolithic attitude control motor system includes a monolithic frame including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending radially from the outer surface of revolution. The system further includes a plurality of attitude control motors corresponding to the plurality of cavities, such that an attitude control motor of the plurality of attitude motors is disposed in each cavity of the plurality of cavities.

A monolithic attitude control motor frame includes a monolithic structure including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending from the outer surface of revolution. Adjacent cavities of the plurality of cavities share a side wall or side wall portion therebetween. Each of the cavities is configured to receive an attitude control motor. A monolithic attitude control motor system includes a monolithic frame including an outer surface of revolution and a plurality of side walls defining a plurality of cavities extending radially from the outer surface of revolution. The system further includes a plurality of attitude control motors corresponding to the plurality of cavities, such that an attitude control motor of the plurality of attitude motors is disposed in each cavity of the plurality of cavities.

An underwater vehicle for performing a variety of linear motions and turning motions with better stability and agility is disclosed. The underwater vehicle includes a main body, a front-drive mechanism, a rear-drive mechanism, and a steering assembly. The main body has a front end and a rear end, which defines a longitudinal axis extending from the front end to the rear end of the main body. The front-drive mechanism is connected to the main body to provide a forward propelling force in a direction parallel to the longitudinal axis. The steering assembly is fixed to the rear end and coupled to the rear-drive mechanism. The steering assembly is configured to rotate the rear-drive mechanism with respect to the longitudinal axis by a body angle for providing a lateral force on the main body.

An underwater vehicle for performing a variety of linear motions and turning motions with better stability and agility is disclosed. The underwater vehicle includes a main body, a front-drive mechanism, a rear-drive mechanism, and a steering assembly. The main body has a front end and a rear end, which defines a longitudinal axis extending from the front end to the rear end of the main body. The front-drive mechanism is connected to the main body to provide a forward propelling force in a direction parallel to the longitudinal axis. The steering assembly is fixed to the rear end and coupled to the rear-drive mechanism. The steering assembly is configured to rotate the rear-drive mechanism with respect to the longitudinal axis by a body angle for providing a lateral force on the main body.

A buoyancy adjusting device for an underwater device is described the device comprising: a tube having first and second ends; a resilient mechanism located at the first end of the tube and extending towards the second end of the tube; an opening near the second end of the tube; a catch at the second end of the tube; 5 and at least one block insertable into from the first end of the tube to adjust the buoyancy.

An underwater vehicle having a hovering system using a tube type launcher. The underwater vehicle includes a streamlined body and a hovering system connected to a rear of the streamlined body to generate a kinetic force of the streamlined body. The hovering system includes an extension shaft extended to be connected to the rear, a connection assembly connected to the rear through the extension shaft, and an auxiliary propeller assembly connected to the connection assembly.

An underwater and aerial vehicle includes a fixing frame, a core navigation system and an energy supply system. The fixing frame has a circular ring configuration in a middle part thereof, and the waterproof sealing cabin is fixed in the circular ring configuration, and multiple cantilever arms extend around the circular ring configuration. An underwater navigation control module and a relay are provided on an auxiliary fixing platform. A second brushless motor is provided on each of the cantilever arms. Each second brushless motor is provided with a marine propeller. A flight control module, a remote control receiver and a power management module are provided on a fixing platform. A first brushless motor is provided on each of the cantilever arms. Each first brushless motor is provided with a rotor via a coupling. The energy supply system is arranged in a lower part of the waterproof sealing cabin.

An apparatus for sweeping influence mines, including an operating unit having a plurality of propulsion devices designed to be immersed in water and at least one floating body connected to the propulsion devices, the latter being designed to overcome the hydrostatic thrust acting on the floating body to keep the operating unit immersed at a predetermined depth.

An apparatus for sweeping influence mines, including an operating unit having a plurality of propulsion devices designed to be immersed in water and at least one floating body connected to the propulsion devices, the latter being designed to overcome the hydrostatic thrust acting on the floating body to keep the operating unit immersed at a predetermined depth.