An electrical current return circuit for on-board avionic devices. A conductive metallic bar is attached to a conductive composite structure of an aircraft via insulating fixtures. The conductive metallic bar may be electrically coupled to on-board avionic devices so that a circuit is formed. A number of on-board devices may be connected to the circuit by way of various connector elements. The conductive metallic bar may also form part of a power grid.


< Thermal protection system for a vehicle

> Device for launching a power kite

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