Queensland-based Stralis Aircraft has ceased operations weeks after completing a hydrogen-electric taxi test with a Beechcraft Bonanza A36 at Brisbane International Airport. The Australian startup, which had been developing hydrogen propulsion systems for aircraft and drones, used its retrofitted Bonnie aircraft for the 29 July demonstration, powered solely by hydrogen fuel cells during the taxi and emitting only water vapour.
The company described the run as a major proof-of-concept achievement, but the technology could not bridge the gap between technical validation and commercial readiness quickly enough to keep the business going. Weak airline demand, high certification costs and an immature hydrogen supply chain were central to the decision. Stralis also pointed to limited infrastructure and an underdeveloped regulatory pathway, saying the wider hydrogen aviation ecosystem had not matured enough to support commercial deployment.
The closure leaves another hydrogen aviation developer unable to translate a successful demonstration into near-term market traction, despite evidence that the propulsion system functioned as designed.