IN Brief:
- Evolito will supply integrated electric propulsion units for Vertical’s Valo programme.
- The companies plan joint certification with the UK Civil Aviation Authority, plus EASA validation.
- Vertical is also planning a hybrid-electric Valo variant, with flight testing slated for mid-2026.
Vertical Aerospace has selected UK-based Evolito as its electric propulsion unit partner for Valo, the company’s piloted eVTOL aircraft, as the sector’s hard problem shifts from prototype performance to certification-grade system engineering.
Under the agreement, Evolito will provide an integrated electric engine architecture combining lightweight electric motors with high-integrity power electronics designed to Design Assurance Level A (DAL-A). In practical terms, DAL-A is the highest safety classification typically applied to airborne systems — a level of process rigour and fault tolerance aligned with equipment whose failure could be catastrophic. For electric propulsion, that bar forces uncomfortable conversations about redundancy, detection, isolation, thermal margins, and controllability under edge-case failures, rather than the more familiar race for peak power density.
Vertical said the Evolito system is intended to deliver the redundancy and reliability required for “airliner-level” safety standards as it works toward entry into commercial service, targeted in 2028. David King, Chief Engineer at Vertical Aerospace, said: “Vertical’s approach to Valo is grounded in rigorous engineering and certification discipline … delivering a propulsion system that provides the performance, redundancy and reliability required for airliner-level safety standards, while remaining practical for commercial operations.”
Evolito’s selection also tightens the programme’s certification loop. The companies plan to certify the propulsion units with the UK Civil Aviation Authority, with concurrent validation by the European Union Aviation Safety Agency, and then seek wider regulator validation beyond Europe. Evolito already holds a CAA Design Organisation Approval for electric propulsion systems, which is a prerequisite for UK type certification work under the regulator’s framework.
While Vertical’s announcement is propulsion-focused, Valo’s published programme metrics underline why the electric engine choice matters: the aircraft is designed around a four-passenger, one-pilot cabin configuration, targeting 150mph cruise speeds and a 100-mile range, and using an eight-propeller arrangement intended to balance control authority with manageable noise and maintenance complexity.
The Evolito deal lands amid broader UK efforts to keep high-value aerospace development anchored domestically. The UK Government has committed long-term funding to the Aerospace Technology Institute programme, aimed at accelerating cleaner aircraft technologies, including electrified propulsion — the same industrial backdrop both companies point to as they build supply chains that can survive certification, not merely impress in demonstrations.
For electronics and power engineers watching eVTOL mature, the more interesting detail is not the motor topology, but the implied system partitioning: integrated power electronics, DAL-A processes, and a certification plan that treats propulsion as a safety-critical computing platform with strict interfaces to flight controls, energy storage, and thermal management. That is where the schedule will be won or lost.
