Vertical Aerospace has performed the first untethered flight of its VX4 technology demonstrator, with the aircraft powered solely by its batteries. Conducted from the developer’s test and evaluation ...
ZeroAvia has completed the initial phase of flight tests for its prototype ZA600 hydrogen fuel cell powertrain aboard a modified Dornier 228 twin-turboprop. In all, 10 sorties were flown with the Do ...
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