GoAero Prize – Saving the World?

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The GoAero Prize is a $2,000,000 chance to save the world – literally.  A three-year search for solutions to the environmental disasters devastating our planet, the GoAero (Aerial Emergency Response Operations) Prize will go to the team creating an automated flight vehicle that can overcome formidable challenges. Gwen Lighter is a veteran of such challenges, having created the earlier GoFly Prize that concentrated on merely getting a single pilot off the ground safely.  Successful finalists spent three years reaching the “playoffs.” This Next Three-Years’ Challenge On the surface, the challenge sounds straightforward enough: “Design and build a safe, portable, robust, autonomy-enabled Emergency Response Flyer.” Beneath that simple mission statement, things are significantly more difficult, requiring a vehicle to reach a disaster scene and perform a necessary mission.  The craft should be able to demonstrate three main characteristics, being: Productive: Deploy on site and keep working day-in and day-out, reliably and efficiently. Versatile: All-theater, multi-environment, and robust so the important jobs …

The New, Improved Hexa 2

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Started in 2017, Matt Chasen’s Lift Aircraft has been promoting an 18-rotor, single-seat Hexa – now replaced by the new, improved Hexa 2.  Featuring more power, better batteries, improved structure and more refined electronics, the 2 seems like a reflection of the improvements generally available to electric aircraft. According to the company, “HEXA was the first eVTOL(electric Vertical Take Off and Landing) aircraft to enter production and pay-per-flight operations in the United States. We’ve produced a fleet of 16 aircraft and have showcased them in North America, Europe, Asia and the Middle East. In 2023, we launched the world’s first pay-per-flight eVTOL operations in Austin, Texas, and in 2024 we launched our 25 city U.S. tour.” Because it’s an ultralight, Hexa 2 avoids many of the complexities of certification and that enables more frequent updates and application of improved technologies. Hexa has been demonstrated at multiple air and trade shows, and even provided a ride for news personality Anderson Cooper.  …

ZeroAvia: 100 CRJ700 Motors to American

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Your Jet May Become a Prop Plane Bombardier’s (Commuter Regional Jet) CRJ700 has been in service for over 21 years, and may be about to receive a power system that will make it one of the cleanest alternatives in air travel. According to electric-flight.eu, “American Airlines plans to convert most of its CRJ700 fleet to environmentally friendly engines,” particularly ZeroAvia’s ZA2000 RJ drive train, electrified by hydrogen fuel cells. American, a shareholder in ZeroAvia, operates a fleet of CRJ 700s through its American Eagle regional airline subsidiary.  Converting the airplanes from their current General Electric CF34-8C1 to hydrogen-fueled ZA2000s will extend the lives of the planes and make them the cleanest things in the sky. Robert Isom, CEO of American Airlines, said: “To accelerate the transition of commercial aviation to a low-carbon future, investments in promising technologies, including alternative forms of propulsion, are required.” Val Miftakhov, CEO and founder of ZeroAvia, added, “At this early stage in our work together, …

Wright ASCENDS

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“The ASCEND program sets a benchmark of the fully integrated all-electric powertrain system at a power density of ≥ 12 kW/kg with an efficiency at ≥ 93%. Currently, these targets, among others, are beyond the capability of state-of-the-art technologies and will require creative thinking and innovation in the electric motor and power electronics space.”  As shown below, the large Wright motors will be available in both ducted fan jet and turboprop configurations. Wright Electric, one of eleven organizations signed up for the ASCEND Program, is pushing forward on several projects encompassing the totality of electric propulsion. WM2500 Motor Jeffrey Engler started Wright Electric in 2018, with assistance from Yates Aerospace, a firm headed by record-holder Chip Yates.  According to Wikipedia, “Two test stands were constructed: one with two 250 [kilowatt] (335 horsepower) UQM motors and two Hartzell Propellers,… the other on a 10,000 [pound] (4,500[kilogram]) trailer to be brought to high altitude test sites.”  Yates had used the same UQM …

An Electric 50th Anniversary to Commemorate

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On this electric 50th anniversary of a notable achievement in the aircraft world, Dr. Reinhard Lernbeiss, a fellow in the Royal Aeronautical Society is a pilot on Boeing 777s and Airbus A330s, 350s, and 320s.  He recently alerted us on LinkedIn that on October 21, 1973, Heino Brditschka was the first to fly a heavier-than-air craft on electric power.  (The Tissandier Brothers had flown an electric airship in 1883, followed by Captains Reynaud and Krebs in 1884.) His converted HB-3/MB-E1 (his own design) managed a first flight time of nine minutes, fifty-eight seconds and reached an altitude of 985 feet above ground level.  Lernbeiss reports that on additional flights, the craft managed 12, 16, and 22 minutes and an altitude of 1,245 feet.  These included go-arounds, with each outing “far below the capacity of the battery on each flight.” Much of the inspiration for the flight came from an aeromodeller, Fred Militky.  A 2018 Federation Aéronautique Internationale (FAI) publication, CIAM …

The Cellsius AC4 Hydrogen Project

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The Cellsius AC4 Lightwing is a capable microlight aircraft popular in Europe.  As part of a project to clean up aviation, it will fly on hydrogen, and for good distances if students at ETH Zurich* are successful in their project. Students are modifying a Lightwing to run on pressurized H2, and crafting motor, fuel system, tanks, power electronics, and battery backup system to make a coordinated, custom-fitted craft.  It will stay aloft for two hours and emit nothing but water vapor. The project’s web site spells out the students’ ambitions.  “Our powertrain consists of many components that together can get an aircraft into the air. “To make this a reality, we develop the majority of our components ourselves, tailored to our requirements.” Components include a radial-flux motor, unusual in that most electric aircraft motors are axial flux.  Students worked with e+a (Elektromaschinen und Antriebe) AG to design and construct the unit.  With that motor, students helped design a matching inverter …

Jaunt Journey – Maybe the Most Unique eVTOL

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The Jaunt Journey may be the most unique eVTOL (electric Vertical Take Off and Landing) machine coming to market, and it relies on something old and several things new for its advanced take on Advanced Air Mobility (AAM).  What makes it special is its combining autogiro-like technology with electric power and some different approaches to the transitions between vertical and horizontal flight. Jaunt promises to carry a pilot and four passengers 80 to 120 miles, pushing it into the realm of regional air mobility.  It can top out at 175 miles per hour, or about the upper limits of most helicopters while pressing down with only 55 dBa of sound pressure, considerably below that of any helicopter.  Its performance and several distinguishing features make it all the more unique. Somewhat Like an Autogiro Autogiros were pre-helicopter rotary-wing aircraft that could lift off and alight quickly because of a large, usually un-driven, series of blades above the fuselage.  Note how easily …

Pie in the Swiss Sky

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Pie Aeronefs is a small firm in Switzerland, specializing in battery-powered aviation, and close to flying its single-seat air racer, the UR-1 Devil.  We reported on this machine in 2021 at an early stage in its development, and now it’s going to be available as a kitplane.  Adding to a bumper crop, their UG-2 Bullfinch will also be available as a kit. Pronouncing that their aircraft are all zero-emissions machines, Swiss made, and innovative, Pie Aeronefs has this manifesto on its home page: “Pie Aeronefs is a Swiss all-electric aircraft manufacturer. “Through distributed electric propulsion, our zero carbon emitting airplanes shall surpass the performance of conventionally powered competitors. “Thanks to an innovative design, our aircraft are optimized for the electric energy system.” UR-1 Devil Supplied as a kit that the company says can be completed in 800 hours, the racer features carbon, aluminum, wood and electronics components, and “access to all technical data and assembly diagrams.”  Customers have to supply …

Light Electric Aircraft at Aero Expo

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Three companies presented electric versions of their light electric aircraft at Friedrichshafen, Germany this year.  From a WWII replica to a high- and low-wing pair of Part 103-compliant craft, to a very modern trainer, the three represent increasing sophistication in light aircraft. Elektra Trainer Dr. Birgit Weissenbach shared that as the only approved electric aircraft in its class, the Elektra Trainer also gained Aero Expo’s Innovation Award 2023 from Aerokurier.  We’ve described the technical details of the airplane in a February entry about its certification, and highlighted its development through many other entries.   Dr. Wiessenbach noted,“What is particularly pleasing is that this year’s reader  award was drawn not only among electric aircraft, of which there are currently not that many, but in the much larger category engine and electric aircraft. Its promised “2.5 hours of safe flight,” validated noise level of 48 dBa, and relatively easy one-person assembly all add up to a functional, useful trainer that can lower …

APUS Offers Two Hydrogen-powered Aircraft

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Designs to Fly “Without Harm for the Climate” APUS (Latin for swift bird) has announced two aircraft, the i-2 and i-5, that will offer either zero emission or very low emission flight.  The designs represent some highly innovative thinking and excellent performance. APUS states its mission as, “Flying without any Harm for Climate!”  To that end, they are developing four craft that will fly on green hydrogen power.  Partnered with, “PowerCell (Hydrogen Fuel Cells), Fraunhofer (High-Voltage applications), COTESA (hydrogen storage solutions) and HEGGEMANN (hydrogen supply and safety systems) we are developing certified powertrain units for emission-free air transportation applications.” APUS i-2, Zero-Emission General Aviation Aircraft In a recent discussion with CEO Dipl.-Ing.Phillip Scheffel; Laurent Altenberger ,an Aerospace Project and Supply Chain Management Consultant in Business Development; and Dipl.-Ing. Robert Adam, a company co-founder and head of powertrain development, your editor learned how committed APUS is in the matter of promoting environmentally friendly flight.  APUS itself goes back to the 2011 …