Forest fires are becoming more frequent and, above all, more severe around the world. …Researchers at the Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI, and start-up CAURUS Technologies GmbH are developing an innovative extinguishing method that can be used to fight large-scale fires more efficiently from the air. …Working closely with their partner CAURUS Technologies GmbH, researchers at Fraunhofer EMI are seeking to make a key contribution to fighting forest fires from the air with a new type of extinguishing method. The modular system consists of hardware and software and combines digital technology with innovative extinguishing approaches to complement conventional extinguishing methods. …The project partners are also developing an opening mechanism that produces an extinguishing cloud that is significantly more efficient. This enables the pilots to release very small, fine water droplets and to position the extinguishing cloud precisely and close to the source of the fire.