Learn how to 3D: Knife Edge / High Alpha Knife Edgeaerofundanaerofundan8:29 amMarch 4th, 2019 Learn how to 3D: Knife Edge / High Alpha Knife Edge Posted byaerofundan 03/04/2019 Videos 0 Share: Related Articles Addiction XL PT 4 Flight series and crash at end! Katana 52 video #2 by Ignacio Natesh Flying the AMR 60 Insane 3D Flight by Alex Fredrickson and the XR-61T Michael Wargo at RCACF in Apopka Florida PA XR-52 slow 3D with Dan Dominguez