Cuberg Batteries – Some Real Numbers

Dean Sigler Batteries, Electric Aircraft Components, Sky Taxis, Sustainable Aviation Leave a Comment

Cuberg, a startup battery company based in Emeryville, California, is pretty specific about its cell-level battery performance – 369 Watt-hours per kilogram at a discharge rate of C/20.  This was verified in testing at the Idaho National Laboratory, with Cuberg cells demonstrating a specific power of 2,000 Watts per kilogram.   Cells lasted through “around” 370 cycles with C/2 charging before they dropped to the ability to maintain 80-percent capacity.  See a .pdf of the test results here. Verifiable Numbers INL tested around 20 of Cuberg’s battery cells, covering multiple cell variants across a spectrum of performance tests. “While the testing all looked good, our announcement addresses the specific metrics that are of most impact to our industry,” Cuberg CEO Richard …

Pipistrel Electrics in America and France

Dean Sigler Electric Powerplants, Hybrid Aircraft, Sky Taxis, Sustainable Aviation Leave a Comment

Celebrating its 30th anniversary, Pipistrel rolled out its new 801 at the UBER Elevate Summit in Washington, D. C. last week and is flying its Alpha Electro Trainer at the Paris Air Show all this week. Launching the 801 at UBER Elevate Dr. Tine Tomažič, Pipistrel’s Director of Research & Development, was a keynote speaker at the conference in Washington, D.C. on June 11, where he presented just enough to whet appetites for more on the coming 801 eVTOL design.  His final touch – presenting an ostensibly realistic recording of the 801’s sound, demonstrated how quiet the vehicle will be. That’s accounted for by the eight fans being tuned to different frequencies, cancelling each other out like the dynamics in …