The largest all-electric aircraft yet flew for 30 minutes, pushing forward the possibility for economically-feasible all-electric commercial flight. More from Engadget:

Their modified Cessna 208B Grand Caravan, the “eCaravan,” flew for 30 minutes around Washington state’s Grand County International Airport using Magnix’s 750HP Magni500 motor instead of the usual turboprop engine. The flight was “flawless…” There are compromises. Batteries consume massive amounts of space and weight, and the current eCaravan could haul just four to five passengers (instead of as many as 14) for a distance of 100 miles. Magnix and AeroTEC hope to eventually carry nine people 100 miles once the technology has advanced, but that won’t happen until after the initial aircraft’s expected certification in 2021.

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