Abstract: An avionics unit assembly for an aircraft can include an avionics unit (e.g., an underwater locator device, “ULD”), and a battery to power the avionics unit. The avionics unit assembly can further include a housing that encases the avionics unit and the battery. The housing includes a vent port for exhausting an emission from the housing during a failure of the avionics unit. The avionics unit assembly can further include one or more of a suppressor that filters the emission, a shield element that is resistant to chemical and/or thermal effects of the emission, and a bracket for mounting the avionics unit to a surface. A method integrating the avionics unit assembly onto a forward aircraft bulkhead at a mount location under an aircraft radome and for manufacturing the avionics unit, and an aircraft including the avionics unit are also described.

Abstract: A computer-based method and apparatus are provided for designing a building's electrical power distribution system. An eNode module accepts user input and collects global project information for an entire electrical power distribution system project. The eNode module extracts and imports the electrical power distribution system project data from separate building equipment and panel board modules and calculates various total electrical loads for the overall system. The eNode module automatically determines the need for accommodating transformers between electrical nodes and flags errors in the specification of panel boards and electrical equipment based on the calculated total loads. The eNode module specifies transformer requirements and determines these errors with the aid of electrical standards data, such as the National Electrical Code.

Abstract: A computer-based method and apparatus are provided for designing a building's electrical power distribution system. An electrical circuit design module accepts electrical requirements for individual circuits and automatically determines values for a set of variables that completely specify the design of the circuits and the physical attributes of the components needed to construct those circuits. The circuit design module determines the set of circuit variables with the aid of electrical standards data, such as the National Electrical Code. Further, multiple circuit design modules may be linked so as to share the data between them thereby providing an hierarchical design process where the design data for higher level electrical circuits is automatically determined from the plurality of individually specified, lower-level circuit data.

Abstract: A computer-based method and apparatus are provided for designing a building's electrical power distribution system. An electrical circuit design module accepts electrical requirements for individual circuits and automatically determines values for a set of variables that completely specify the design of the circuits and the physical attributes of the components needed to construct those circuits. The circuit design module determines the set of circuit variables with the aid of electrical standards data, such as the National Electric Code. Further, multiple circuit design modules may be linked so as to share the data between them thereby providing an hierarchical design process where the design data for higher level electrical circuits is automatically determined from the plurality of individually specified, lower-level circuit data.