ZeroAvia has announced that it has reached consensus with the Federal Aviation Administration (FAA) with an agreed and fully signed P-1 Special Conditions Issue Paper regarding certification of its 600kW electric propulsion system (EPS).
“The P-1 follows issuance of the FAA G-1 in February 2025 and documents the special conditions applicable to ZeroAvia’s novel electric propulsion technology to be addressed in the certification process with the U.S. regulator,” said the company in a press release. “Once the FAA’s Special Conditions rule is finalized and published in the Federal Register, the means of compliance for the innovative EPS meeting those conditions will be determined in the next certification stage.
“Progressing from the G-1 to the P-1 marks another milestone both on the journey toward certification of ZeroAvia’s EPS with the U.S. regulator, and also on the path toward certifying the company’s first fully hydrogen-electric powertrain with the UK Civil Aviation Authority.”
ZeroAvia’s 600kW EPS combines the company’s proprietary inverter and electric motor technology to deliver an efficient electric engine with fault tolerance and specific power. The 600kW EPS system comprises four ZeroAvia 200kW continuous power bidirectional inverters converting DC power to AC to supply ZeroAvia’s direct drive motor, capable of 2,200 rpm.
ZeroAvia has already tested a prototype of the ZA600 hydrogen-electric engine aboard a Dornier 228 aircraft at its UK base. The company also has an engineering partnership with Textron Aviation as it looks to secure a supplemental type certificate for the Cessna Grand Caravan as the launch airframe for the ZA600. And in May, the company announced RVL Aviation as its UK launch customer for the world’s first hydrogen-electric commercial service route.
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