Today’s Patent – Rotary Wing Aircraft

The said invention (US12258121B2) was invented by Axel Fink, Manuel KEMPF, Philipp WALCH, Luca SPECHT and patented by USPTO on May 5^th, 2023. Currently, it stands assigned to the Airbus Helicopters Deutschland GmbH.

The disclosure relates to a rotary wing aircraft with a fuselage separated from the upper deck by an upper primary skin. The upper deck houses at least one engine within a firewall arrangement that includes a funnel-shaped lower firewall between the engine and the skin. This design improves fire protection by directing heat and fluids away from key structures and includes a drainage point. Engines are mounted via isostatic fixation points to minimize stress from thermal or elastic deformation. Compared to conventional titanium decks, the funnel-shaped firewall offers enhanced safety, structural integrity, and compliance with fireproofing standards.