Abstract: An electric wheel drive system, an electric generator, a hybrid internal combustion electric vehicle, and associated methods are described that include sleeve bearings rotating on support cylinders. Fluid pumps provide lubrication and cooling. Examples include hydraulic cylinders for steering one or more electric wheel drive systems independently. Suspension is also provided to individual electric wheel drive systems independently in some examples.

Abstract: An electric wheel drive system, an electric generator, a hybrid internal combustion electric vehicle, and associated methods are described that include sleeve bearings rotating on support cylinders. Fluid pumps provide lubrication and cooling. Examples include hydraulic cylinders for steering one or more electric wheel drive systems independently. Suspension is also provided to individual electric wheel drive systems independently in some examples.

Abstract: An electric propulsion system and methods are described that include an internal combustion engine coupled to a generator to provide power to one or more electric motors. Configurations are shown that include excitation control of power from the generator. Configurations are shown that include a hydraulic braking system. Configurations are shown that include an active suspension system.

Abstract: An airship and method of providing thrust to an airship are shown. Examples include a number of turbine thrusters coupled to a number of electric motor/generators that supplement thrust from the turbine thrusters. Systems and methods are described that include surveying an agricultural area, and spraying an amount of an agricultural supply on only selected portion of the agricultural area.

Abstract: A navigation system and associate methods are described that include a plurality of fixed terrestrial based reference devices that calibrate the system by tracking positional error between the fixed terrestrial based reference devices. A navigation system and associated methods are also described that include a laser positioning system. A navigation system and associated methods are described that include an RF positioning system. In one example, the laser positioning system, and the RF positioning system cross check one another to ensure reliability and accuracy of a position measurement.

Abstract: A navigation system and associate methods are described that include a plurality of fixed terrestrial based reference devices that calibrate the system by tracking positional error between the fixed terrestrial based reference devices. A navigation system and associated methods are also described that include a laser positioning system. A navigation system and associated methods are described that include an RF positioning system. In one example, the laser positioning system, and the RF positioning system cross check one another to ensure reliability and accuracy of a position measurement.

Abstract: A navigation system and associate methods are described that include a plurality of fixed terrestrial based reference devices that calibrate the system by tracking positional error between the fixed terrestrial based reference devices. A navigation system and associated methods are also described that include a laser positioning system. A navigation system and associated methods are described that include an RF positioning system. In one example, the laser positioning system, and the RF positioning system cross check one another to ensure reliability and accuracy of a position measurement.

Abstract: A navigation system and associate methods are described that include a plurality of fixed terrestrial based reference devices that calibrate the system by tracking positional error between the fixed terrestrial based reference devices. A navigation system and associated methods are also described that include a laser positioning system. A navigation system and associated methods are described that include an RF positioning system. In one example, the laser positioning system, and the RF positioning system cross check one another to ensure reliability and accuracy of a position measurement.

Abstract: A method and apparatus for a multi-channel space-division switching network capable of providing dedicated line connections from a large number of inlets to a large number of outlets for either analog or digital communication. A flexible and highly modular space-division switching network is constructed using a basic digital exchange circuit element. This element is a basic building block which can be inexpensively manufactured and wired together in large numbers to form space-division switching networks which can be expanded or contracted according to a user's requirements and volume of communications. The building block element is constructed using line receiver/driver buffers as an interface to adapt a wide variety of communications media to the internal electronic media of the space-division switching network. The element also includes bus driver/receivers which are used to transfer communication information to and from intrastage and interstage buses.