AMSL AERO IS PIONEERING THE HYDROGEN-POWERED EVTOL REVOLUTION
The AMSL Aero Vertiia is Australia's first domestically developed eVTOL (electric Vertical Take-Off and Landing) aircraft and the world's first eVTOL designed to run on hydrogen fuel. Built by Sydney-based AMSL Aero and funded in part by the Australian Renewable Energy Agency (ARENA), the Vertiia targets a range of up to 1,000 kilometres at 300 km/h, powered by a 100 kW hydrogen fuel cell combined with battery storage, making it a serious candidate for regional air mobility and aeromedical transport.
Why Hydrogen? The Case for Fuel-Cell eVTOL
Most eVTOL aircraft rely entirely on battery packs. While effective for short urban hops, lithium-ion energy density limits range to roughly 50 to 150 kilometres. The Vertiia takes a different approach: a hydrogen fuel cell feeds a 100 kW electric motor, supplemented by a battery buffer. Hydrogen's energy density gives the aircraft that 1,000 km range target, while the only emissions are water vapour. Refuelling takes approximately 10 minutes, comparable to traditional aviation rather than the multi-hour charging times of battery-only platforms.
Noise is also a key consideration. AMSL Aero has targeted an operating noise level of 65 to 70 decibels, substantially lower than a helicopter, which enables closer integration with urban and suburban communities.
Design: Box-Wing Heritage and Eight-Rotor Lift
The Vertiia's aerodynamic layout draws inspiration from Lawrence Hargrave's 19th-century box-wing concept, adapted into a V-Tail configuration with wing tilt capability. At take-off, eight vertically aligned rotors generate helicopter-style lift. As the aircraft accelerates, those rotors tilt progressively forward, transitioning into fixed-wing cruise mode. This hybrid approach combines the vertical freedom of a helicopter with the range and efficiency of a small aircraft.
The modular fuselage allows the interior to be reconfigured for different missions: up to four passengers and a pilot for regional transport, or a stretcher and medical equipment for aeromedical use. Payload capacity sits at 500 kilograms. Outer wing pod mounting for the power systems adds redundancy and physically separates passengers from the propulsion units for additional safety.
Testing Progress and Road to Certification
AMSL Aero completed the first untethered flights of a full-scale Vertiia prototype and has logged more than 50 flights on the electric variant. Hydrogen fuel cell integration tests began in 2024, with AMSL Aero marking a full year of hydrogen aviation testing by mid-2025. The company is working toward certification under the Civil Aviation Safety Authority (CASA) in Australia, with commercial operations targeting regional routes where helicopter economics currently make air transport prohibitively expensive.
Operational costs are projected to be up to 70 percent lower than a comparable helicopter mission, a figure that, if validated in service, would significantly open up regional air access across Australia's vast geography.
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Photo: AMSL Aero | More at eVTOL News
