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 review by TwoBrosRC XR-61T Maximum Fun! Balsa 3D Performance at a Great Price – Precision Aerobatics Katana 52″ Ultimate AMR 60 – Easter Flight by Daniel Dominguez Michael Wargo at RCACF in Apopka Florida PA XR-52 slow 3D with Dan Dominguez