An unmanned sailing vehicle comprising: a primary hull; a rigid wing rotationally coupled with said primary hull that freely rotates about a rotational axis of said rigid wing; a boom comprising a first end extending from a leading edge of said rigid wing and a second end extending from a trailing edge of said rigid wing, said first end of said boom comprising a counterweight configured to dynamically balance a wing system comprising said rigid wing, said boom, and said tail with respect to said rotational axis of said rigid wing; a tail coupled to said second end of said boom; a control surface element disposed on said tail and configured to aerodynamically control a wing angle of said rigid wing based on a position of said control surface element; and a controller configured to determine a control surface angle and generate a signal to position said control surface element.

An unmanned sailing vehicle comprising: a primary hull; a rigid wing rotationally coupled with said primary hull that freely rotates about a rotational axis of said rigid wing; a boom comprising a first end extending from a leading edge of said rigid wing and a second end extending from a trailing edge of said rigid wing, said first end of said boom comprising a counterweight configured to dynamically balance a wing system comprising said rigid wing, said boom, and said tail with respect to said rotational axis of said rigid wing; a tail coupled to said second end of said boom; a control surface element disposed on said tail and configured to aerodynamically control a wing angle of said rigid wing based on a position of said control surface element; and a controller configured to determine a control surface angle and generate a signal to position said control surface element.

A gyroscopic roll stabilizing device for a marine vehicle includes a base communicating with a gyroscopic component which includes a rotor rotatable about an axis, a motor for rotating the rotor about the axis, a swing container swinging about a swing axis and having the rotor communicating thereto, a first support member and a second support member being opposite to the first support member for swingingly supporting the swing container. An actuating member rotates the gyroscopic component about an axis around which the rotor does not swing in its free state.

Provided is a virtual interactive system for hull load identification and full-field safety assessment, which includes a structure strain and acceleration monitoring module, a hull motion monitoring module, a hull load identification module, a hull full-field structural response calculation module, a hull wave environment identification module, a ship response virtual interaction module, a ship response 3D visualization module, a real-time safety assessment module, and a system storage and output module.

Provided is a virtual interactive system for hull load identification and full-field safety assessment, which includes a structure strain and acceleration monitoring module, a hull motion monitoring module, a hull load identification module, a hull full-field structural response calculation module, a hull wave environment identification module, a ship response virtual interaction module, a ship response 3D visualization module, a real-time safety assessment module, and a system storage and output module.