Alex Fredrickson flying the Katana 52!aerofundanaerofundan6:16 pmJune 8th, 2018 Alex Fredrickson flying the Katana 52! Posted byaerofundan 06/08/2018 Videos 1 Share: Related Articles Ultimate AMR 60: Double the fun! NXT Servos – How its made? Watch in this video how servos are manufactured! Katana 52 Unlimited 3D FUN by Alex Fredrickson Learn how to 3D: Flat Spin Ultimate AMR 60 flown by Alex Fredrickson! Extra 260 as never seen before! Flown by Daniel Dominguez