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 The Katana 52 is a beast! super slow 3d, graceful precision, to ultra high energy aerobatics! Katana 52 pushed to the max by Ignacio Tapia! The Pop Top – Quarantine project! Learn to fly 3D from home! Learn how to 3D: Flat Spin Michael Wargo at RCACF in Apopka Florida PA XR-52 slow 3D with Dan Dominguez