XR-61 to the limit by Alex Fredricksonaerofundanaerofundan2:03 pmJuly 18th, 2018 XR-61 to the limit by Alex Fredrickson Posted byaerofundan 07/18/2018 Videos 1 Share: Related Articles Michael Wargo – PA Katana 52 Flying on 3 different setups. Michael Wargo First Flight Katana 60 Demo at RAMS RC Show Extra 260 pushed to the limits by Daniel Dominguez XR-52 flown by Daniel Dominguez Addiction XL! Lower! Lower! flown by Alex Fredrickson Ultimate AMR 60 flown by Alex Fredrickson!