Helix motors have already proven themselves in the world of high-performance electric vehicles. They power the McMurtry Spéirling and Lotus Evija, two cars that can accelerate from 0 to 62 mph (100 km/h) faster than many supercars. Now, these same motors are being adapted for use in Astro Mechanica’s Duality propulsion system.

The Duality system is designed to be flexible, switching between a turbofan at takeoff and lower supersonic speeds, a turbojet when things get serious, and something akin to a ramjet at extreme altitudes. This adaptability addresses the main issue that led to the downfall of Concorde: engines were great for high speed but inefficient otherwise.

For their fifth-generation Duality prototype, Astro Mechanica is developing custom radial flux motors from Helix. These new motors will produce up to 1,274 hp (950 kW) at peak power and can run continuously at a more modest but still impressive 402 hp (300 kW). The goal is to achieve the first flight in three years with commercial operations within a decade.

The dream of supersonic travel is not just about speed; it’s also about making long-distance flights feel like short hops. With Helix and Astro Mechanica working together, we might soon see this vision become reality, bringing back the excitement of Concorde-era air travel but with modern efficiency.

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Yasa’s latest milestone follows the opening of its newly renovated manufacturing facility earlier this year. The plant has been equipped to produce more than 25,000 units annually and supports Yasa’s rapid growth trajectory since it was founded in 2010.

The company recently set a new power density record for electric motors with a motor weighing just 12.7 kilogrammes that delivered peak output of 750 kW on a test bench. This achievement underscores the technological advancements and engineering precision at Yasa, which has been supplying motors to high-performance vehicles like Ferrari SF90 Stradale and Lamborghini hybrids.

Yasa’s Chief Technology Officer (CTO) Tim Woolmer highlighted that from producing just 20 motors in its first year of operation in 2010, the company managed to manufacture 20,000 units this year alone. This represents a compounded annual growth rate of around 60% over the past fifteen years.

The axial-flux motor design used by Yasa differs from conventional radial-flux motors as it aligns the magnetic field along the axis rather than the radius, increasing power density and allowing for smaller overall size. Mercedes-Benz AG acquired the company in 2021 and has since integrated its technology into several high-performance models.

With continued advancements and integration into high-performance vehicles, Yasa is poised to maintain its position as a leader in electric motor technology for years to come.

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The recently tested 12.7 kg motor produced a peak output of 750 kW, demonstrating remarkable performance on YASA’s dyno setup. This breakthrough is crucial for enhancing EV efficiency, particularly in high-performance vehicles where space and weight are critical factors.

YASA’s engineering team has been relentless in refining the design to achieve these exceptional results. The motor utilizes advanced thermal management techniques and precision manufacturing processes, ensuring optimal performance under extreme conditions. These innovations not only improve power density but also enhance durability and reliability for high-demand applications.

The prototype underwent rigorous testing at YASA’s Oxford Innovation Centre, with support from the UK’s Advanced Propulsion Centre. Engineers are particularly excited about the motor’s estimated continuous power output range of 350 kW to 400 kW, which could significantly enhance EV performance and range.

Simon Odling, Chief of New Technology at YASA, expressed his enthusiasm over the prototype’s performance: “The results have been nothing short of spectacular. The motor’s real-world capabilities have exceeded our simulations, marking a new era in electric propulsion technology.” With this breakthrough, YASA aims to position itself as a leader in premium EV components.

As the automotive industry continues its transition towards electrification, advancements like those from YASA are pivotal. This latest achievement underscores the potential for axial flux motors to transform high-performance and luxury vehicles by offering superior performance with less weight and volume.

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