MIAMI – Pyroalliance and Safran Electrical & Power partnered to develop a solution to protect electric propulsion systems from flames.

For such a task, the two French companies aim to develop technologies that can respond in a millisecond to shield electric and hybrid-electric aircraft from the danger of an electric arc.

In a press release, Pyroalliance and Safran Electrical & Power stated that they hope to show a prototype of the pyrotechnic electrical shutdown device in 2022.

In addition, the companies expect to have the device ready for commercial use in 2023. France’s DGAC civil aviation authority is contributing 50% of the project’s unspecified expenditure as part of the government’s Recovery Plan.

Going up in flames, at least two electric aircraft prototypes have been lost. Both outbreaks occurred during repair work. Two examples are the Lilium Jet eVTOL aircraft and Eviation’s Alice nine-seat fixed-wing platform.

Render: Lilium

About Pyroalliance, Safran

Pyroalliance has a half-century history of designing pyrotechnic control technologies for a wide range of aeronautics, defense, and space applications. It is a member of the Ariane family.

Safran manufactures aircraft engines, electrical equipment, and cabin furnishings. Safran recently produced the Engineus line of electric motors. Those products find their way into some aerospace companies such as Bye Aerospace (which uses them for its eFlyer family).

The group has been focusing on high-voltage circuit breakers to provide simultaneous safety against electric arcs based on its experience working with high-power aeronautical electrical networks with voltages ranging from 800 to 1,200 volts.

Featured image: L’Oeil Du Chat/Safran