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Red Bull Extra 300
David printed parts on a 3D Prusa MK2.5 printer to build this 64-inch-span model of Hannes Archer’s Red Bull racer. The 8.1-pound model is powered by an Axi 4130 20T motor on 8S LiPos. David writes, "It has the unique features of direct-drive control surfaces and removable static-display landing gear. It is a beast with a loud growl." David Novotny, Keizer, Oregon
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