Pratt & Whitney and Collins launch hybrid-electric programme

Pratt & Whitney and Collins Aerospace, both Raytheon Technologies businesses, have launched a new hybrid-electric technology demonstrator programme applicable to future advanced air mobility vehicles.

The Scalable Turboelectric Powertrain Technology (STEP-Tech) demonstrator extends Pratt & Whitney and Collins’ longstanding collaboration on hybrid-electric technology development, which is a core element of both companies’ strategies for powering sustainable aviation and enabling customers to achieve the goal of net zero CO2 emissions by 2050.

The STEP-Tech demonstrator will be based at the Raytheon Technologies Research Center in East Hartford, US, and will focus on developing high voltage distributed turboelectric hybrid-electric propulsion concepts in the 100-500kW class, with potential to scale to 1MW and beyond.

The modular and scalable nature of the STEP-Tech demonstrator platform enables a wide range of configurations to be rapidly prototyped and demonstrated. Having completed proof of concept studies earlier this year, ground testing with the platform is targeted to commence in late 2022.

“Innovation has always been at the heart of Pratt & Whitney, and we are delighted to expand our work on hybrid-electric technology by leveraging our close collaboration with Collins,” said Geoff Hunt, senior vice president, engineering and technology, Pratt & Whitney. “Hybrid-electric offers the potential to not only unlock even greater efficiency in future aircraft, but also support the emergence of a whole new arena of advanced air mobility solutions. Ultimately our continual pursuit of advanced propulsion technologies will help enable aviation’s pathway to net zero CO2 emissions by 2050.”

The STEP-Tech demonstrator platform will include full end-to-end system capabilities, including a high-efficiency turbogenerator, energy storage, power electronics and modular electrically driven propulsors. Successfully demonstrated technology could be implemented in a range of novel aircraft applications, including high speed eVTOL, Unmanned Aerial Vehicles (UAVs), and small to medium sized commercial air transporters.

Henry Brooks, president, Power & Controls for Collins Aerospace, said, “With Pratt & Whitney’s track record in aircraft propulsion and Collins’ legacy of innovation in electric power systems, we are exceptionally well-positioned to lead the advancement of hybrid-electric technology for the next generation of sustainable aircraft. Our demonstrator programs will help mature technologies and components that can be adapted to a range of different applications, from smaller eVTOLs, to regional turboprops, to single-aisle airliners.”

Existing collaborations between the two companies on hybrid-electric technology include the regional aircraft flight demonstrator, based on a De Havilland Canada Dash 8-100 turboprop, and supported by the governments of Canada and Quebec.

Hybrid-electric propulsion provides opportunities to optimise engine performance across different phases of flight, enabling greater fuel efficiency and lower CO2 emissions across a range of different aircraft segments.

Hybrid-electric technology is also highly scalable, which means that motor components and electric control systems developed as part of the demonstrator announced today may eventually support larger scale applications, including single-aisle commercial aircraft.

Related Articles

In sight of electric flight

ANSYS’ aerospace & defence global industry director, Paolo Colombo looks at why simulation is critical to make electrification the norm in the aerospace industry.
4 years ago Features

Paris Airshow 2019: Rolls-Royce acquires Siemens electrification expertise

Rolls-Royce has entered into an agreement to acquire the electric and hybrid-electric aerospace propulsion activities of Siemens’ aircraft business in a move intended to accelerate its electrification strategy and boost the ambition of the aero-engine maker ton play a major role in what is described as the third era of aviation.
3 years ago News
Most recent Articles

Stirling Dynamics partners Hanwha Aerospace

Stirling Dynamics, part of engineering, technology and consultancy provider Expleo, has announced a partnership with Hanwha Aerospace, to develop new technology that will help power the future of zero-emission aviation.
10 hours ago News

Spanish aero sector jobs boosted by Eurofighter programme

The Eurofighter programme will cumulatively secure 26,000 jobs in Spain until 2060, according to a recent study by PricewaterhouseCoopers (PWC) on the economic impact of the ‘Halcon’ and ‘Quadriga’ contracts for the country.
11 hours ago News

UK industry sets out priorities for advanced air mobility

In a report released by ADS, the UK trade association for aerospace, defence, security and space organisations, UK industry sets out its key priorities for the rollout of a thriving Advanced Air Mobility (AAM) and electric Vertical Take Off and Landing (eVTOL) market in the UK.
3 days ago News

Login / Sign up