Aircraft Fuselage Attachment Plate for Lightning and Heat Isolation

The patent introduces a buffer plate as an intermediary element between the metal fitting and the fuselage. This plate serves as a mediator that provides electrical and thermal insulation without requiring the entire fastening system to be made of expensive insulating materials. The buffer plate is positioned at the critical interface where insulation is most needed, effectively blocking current and heat transmission to the fuselage while using cost-effective materials.

The attachment system employs a composite structure combining metal fitting (for mechanical strength and fastening function) with a buffer plate made of insulating material (for electrical and thermal protection). This composite approach allows each component to perform its optimal function - the metal fitting provides secure attachment while the buffer plate provides insulation - without requiring the entire assembly to be made of expensive specialized materials.

The fastening system is segmented into distinct functional components: a metal fitting for mechanical attachment and a separate buffer plate for insulation. This segmentation allows the metal fitting to provide full mechanical strength without compromising, while the buffer plate independently handles the insulation function. The separation of functions enables optimal performance in both strength and protection without requiring a compromise in material selection for either component.

The buffer plate acts as an intermediary barrier between the metal fitting and the fuselage. It is positioned in the load path and thermal/electrical conduction path, providing mechanical support for the fitting while simultaneously blocking the transmission of harmful currents and heat to the fuselage structure.