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Honeywell generator is able to run on biofuel
A Honeywell turbogenerator can provide electric power for multiple electric motors anywhere on an aircraft. The first demonstration of this turbogenerator system will occur in the third quarter of 2021.
The generator will be used to form a turbogenerator 2.5 times more powerful than the version Honeywell unveiled in 2019.

Honeywell is developing a power source for hybrid-electric aircraft, planned for demonstration later this year.

At 280 pounds, Honeywell's one-megawatt generator weighs about the same as a motor scooter but delivers enough energy to power a neighbourhood block. This generator will be combined with the Honeywell HGT1700 APU, currently flown on every Airbus A350 XWB, to form a turbogenerator 2.5 times more powerful than the version the company unveiled in 2019.

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. The turbogenerator 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.

“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,” says Stephane Fymat, VP and GM for unmanned aerial systems and urban air mobility at Honeywell Aerospace. “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 turbogenerator can provide electric power for multiple electric motors anywhere on an aircraft.

“Our unrivalled 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,” states Taylor Alberstadt, senior director of power systems business development at Honeywell Aerospace. “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.

Honeywell unveiled its first turbogenerator for urban air mobility (UAM) at the 2019 HAI Heli-Expo in Atlanta, Georgia. It combined an HTS900 turboshaft engine with two 200-kilowatt generators. Since then, the company continues to grow its role in the UAM segment, highlighted by advancements in electric and hybrid-electric propulsion systems.

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