Evolito and ElectroFlight

Dean Sigler Announcements, Batteries, Electric Powerplants, Sky Taxis, Sustainable Aviation Leave a Comment

A Profusion of Names  Evolito is the new name for YASA motors that fly.  YASA (Yokeless and Segmented Armature) motors are a product of Oxford University research, and have become a wholly-owned subsidiary of Mercedes-Benz.  Mercedes is now creating and marketing a line of electric vehicles using the YASA motors.  But what of aeronautical applications? With that in mind, Mercedes spun out Evolito, taking YASA skyward with “high-power density, light-weight electric motors and controllers for aerospace applications.”  Evolito’s Managing Director, Gareth Morris, explains, “We’re building the future of electric flight with motors that have the highest power and torque densities in class with the ability to manufacture at scale, whilst achieving efficiencies of over 98%.” Although their web site claims the YASA configuration is a “revolutionary new approach” to motor design, it’s a careful revamping of the axial flux technology invented almost 40 years ago by Cedric Lynch, a self-taught English inventor. Evolito’s axial-flux motors contain significant improvements.  Two motors …

Joby “Unicorn” Gains Private, Military Backing

Dean Sigler Announcements, Batteries, Electric Powerplants, Fuel Cells, Hydrogen Fuel, Sky Taxis, Sustainable Aviation Leave a Comment

Joby Aviation is one of few “unicorns” in the electric Vertical Take Off and Landing (eVTOL) market, a billion-dollar enterprise.  With funding coming from Toyota, several venture capital investors, Uber and the U. S. Army, Joby seems poised to demonstrate Urban Air Mobility (UAM) in a serious way. In 2011 JoeBen Bevirt, founder of Joby Energy, Joby Aviation, and creator of those knobby-looking tripods you see everywhere, invited Patrick McLaughlin to visit his design studio.  Your editor got to tag along.  On Woodpecker Ridge, north of Santa Cruz, JoeBen’s barn-like studio housed about a dozen engineers and designers all working on electricity-generating kites.  He wore a T-shirt reading, “If you’re not living on the edge, you’re taking up too much room.”  That edginess has helped him, in the last decade to be a major player, with now over 500 employees in the aviation sector.  JoeBen and Patrick discussed motor design and integration with a controller Patrick had built from off-the-shelf …

World’s First Electric Tilt-Rotor Aircraft

Dean Sigler Diesel Powerplants, Electric Powerplants, Sustainable Aviation 1 Comment

AugustaWestland, after keeping the world’s first electric tilt-rotor aircraft under wraps for nearly two years, is letting the public in on its exciting new design. According to the company, “The tilt rotor technology demonstrator is completely electric powered; designed to hover like a helicopter and convert to a fixed wing aircraft in forward flight thanks to its two integrated rotors which can be tilted through more than 90 degrees. The demonstrator performed its first unmanned tethered flight in June 2011 at AgustaWestland’s Cascina Costa facility in Italy and has since performed untethered hovering flights inside a secured area.” Emulating Bell Boeing V-22 Osprey flight characteristics, Project Zero affirms that AugustaWestland thinks tilt-rotor technology is “the best layout for the future of fast vertical lift aircraft.” VerticalMag.com explains the aerodynamics and controls of the new vehicle: “During cruise, the wings will provide most of the lift, with the blended fuselage and shroud also making a contribution. ‘Project Zero’ has been designed …