Supplier reports up to 3.5 kW/kg specific power for a turbo-air-cooled modular system; measurement boundary and conditions need confirmation.
The supplier describes aviation or aircraft-system uses; an exact aircraft installation has not been independently verified.
No regulator-issued approval has been verified for this specific product and configuration. Test milestones, design targets and organisational approvals are separate from a product certificate.
ZeroAvia: HTPEM fuel-cell system source (undated); checked 28 October 2026.