Technology

Honeywell ‘turbo generator’ to provide electric power for multiple electric motors

The generator will be combined with Honeywell HGT1700 auxiliary power unit to form a turbogenerator 2.5 times more powerful than its precious version.
There is an inherent need for electric and hybrid-electric power as the urban air mobility segment takes shape and unmanned aerial vehicles enter service.

The new turbogenerator from Honeywell will be able to run on aviation biofuel, including Honeywell Green Jet Fuel, which is chemically similar to fossil fuel but made from more sustainable alternatives

10 March 2021: Honeywell is developing a Turbogenerator for hybrid-electric aircraft. This 1-Megawatt generator will weigh 280 pounds, almost the same as a motor scooter but delivers enough energy to power an entire neighborhood block. This generator will be combined with Honeywell HGT1700 auxiliary power unit, currently flown on every Airbus A350 XWB, to form a turbogenerator 2.5 times more powerful than its previous version.

The new turbogenerator from Honeywell will be able to run on aviation biofuel, including Honeywell Green Jet Fuel, which is chemically similar to fossil fuel but made from more sustainable alternatives, as well as conventional jet fuel and diesel. Honeywell’s turbo generator can be used to operate high-power electric motors or charge batteries and can satisfy missions from heavy-lift cargo drones to air taxis, or commuter aircraft. The first demonstration of this turbogenerator system will occur in the third quarter of 2021, with ongoing development and qualification to follow.

Stephane Fymat, vice president and general manager for Unmanned Aerial Systems and Urban Air Mobility at Honeywell Aerospace said, “There is an inherent need for electric and hybrid-electric power as the urban air mobility segment takes shape and unmanned aerial vehicles enter service. Our turbogenerators provide a safe, lightweight package to serve these burgeoning segments, and we’re designing our solutions to meet the unique needs of customers developing aerial vehicles of the future.”

Traditionally, aircraft use fuel-burning engines to mechanically turn rotors, propellers or fans. Many new designs, however, use a distributed electric propulsion architecture, in which many electric motors can be tilted or turned off for vertical takeoff and horizontal flight. A Honeywell turbo generator can provide electric power for multiple electric motors anywhere on an aircraft.

Taylor Alberstadt, senior director of Power Systems Business Development at Honeywell Aerospace said, “Honeywell’s unrivaled legacy in the manufacturing of auxiliary power units and larger gas turbine engines gives us the ability to create unique power systems for future vehicles. We think the future of aviation will include many new types of propulsion and power systems, and Honeywell is prepared to lead the way in their development.” 

In December, Honeywell signed a memorandum of understanding with British startup Faradair Aerospace to collaborate on systems and a turbogeneration unit that will run on sustainable aviation fuel to power Faradair’s Bio Electric Hybrid Aircraft (BEHA). Faradair intends to deliver 300 hybrid-electric BEHAs into service by 2030, of which 150 will be in a firefighting configuration. Honeywell is in advanced discussions with several other potential turbogenerator customers, working to help define power requirements based on mission profiles required by various manufacturers.