Abstract: Techniques are disclosed for systems and methods to provide graphical user interfaces for assisted and/or autonomous navigation for mobile structures. A navigation assist system includes a user interface for a mobile structure comprising a display and a logic device configured to communicate with the user interface and render a docking user interface on the display. The logic device is configured to monitor control signals for a navigation control system for the mobile structure and render the docking user interface based, at least in part, on the monitored control signals. The docking user interface includes a maneuvering guide with a mobile structure perimeter indicator, an obstruction map, and a translational thrust indicator configured to indicate a translational maneuvering thrust magnitude and direction relative to an orientation of the mobile structure perimeter indicator.

Abstract: A dual sighting optical sight is provided. The sight provides non-inverted images through a rear window and at least one side window so that a user may view a target from either a rear or a side, respectively, of the weapon to which the sight is mounted. The sight is adjustable to a plurality of different positions so that the user can use the sight and weapon from other than directly behind the sight weapon.