Jon Graber sent in the following articles:
Eflyer 800 Eight-Seat Electric Aircraft
Jetoptera VTOL Aircraft Features “Bladeless Fans on Steroids”.
Factoral Energy’s Solid State Battery.
Compressed Air Grid Batteries
Electric Airplane Racing is Coming
A Long Lasting Stable Solid-State Lithium Battery
Hypersonic Flight to Mach 16
Cutting Through the eVTOL Hype
Why New Aircraft Engines Rarely Succeed
