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 PA Katana 52 – best plane to make jaws drop, capable of all style of aerobatics! XR-52 – Lots of FUN guaranteed! Why a 3D plane is perfect next step for a beginner. Easier to Land and Easier to Fly! XR-52 perfect balance between precision flying and 3D aerobatics Michael Wargo at RCACF in Apopka Florida PA XR-52 slow 3D with Dan Dominguez