Doroni Aerospace Taps TLG Aerospace for H1-X Engineering and Certification Push

Doroni Aerospace has brought Seattle-based aerospace engineering firm TLG Aerospace on board to help carry its H1-X personal electric vertical take-off and landing aircraft through engineering analysis and certification work.

The two companies will collaborate on vehicle design, structural loads analysis, finite element analysis (FEA), computational fluid dynamics (CFD) and flight mechanics. The results are meant to move the H1-X closer to full-scale production, ground testing and the airworthiness requirements set by the FAA.

Doroni is shaping the H1-X as a personal eVTOL that pairs a tandem-wing layout with enclosed ducted-fan propulsion, and says the design is intended to fit inside a residential garage while supporting personal flight operations. The company is also working on a digital co-pilot system for the aircraft. A central goal of the TLG tie-up is producing the engineering data needed for the H1-X’s planned certification pathway under the FAA’s MOSAIC regulatory framework; TLG Aerospace brings FAA Designated Engineering Representatives with backgrounds spanning flight performance and handling qualities, loads, structures and aeroelasticity.

Before any major physical build or testing begins, structural and aerodynamic analysis will size up the aircraft. The structural side covers airframe loads modelling and finite element analysis to gauge the strength and weight behaviour of the carbon-fibre airframe, while CFD will be used to study performance across flight regimes such as hover and forward flight, including transition characteristics and energy consumption as the aircraft shifts between vertical and wing-borne flight. The partnership also extends to preparing engineering datasets, stress reports and test plans aligned with consensus standards under MOSAIC. Doroni says the work supports its advance toward advanced flight testing and production development, with TLG providing engineering and certification support from its Seattle operation.