The remote-controlled aircraft is roughly the same size as a human-piloted Cessna 150. Image: Ramy RC   Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy . You may unsubscribe at any time. Popular YouTuber and aircraft enthusiast Ramy RC built and flew what he’s calling the world’s largest remote-controlled (RC) version of a Boeing 777-9X jet. It’s not just big for an RC toy, it’s big, period .  With a wingspan of 33 feet and weighing 630 pounds, it’s roughly the same size as a human-piloted Cessna 150. The RC Boeing 777-9X may look  identical to the real aircraft on the outside, but the plane is made mostly out of CNC-milled foam and carbon fiber. It has five actuators controlling the flaps, working landing gear, and is fully electric.…