X-Plane 9.70 NASA F-8 Super Critical Wing. A 1973 NASA flight sciences project tested a new super critical wing on a retired US Navy Vought F8 Crusader. It's a beautiful looking jet and flies pretty good as well. Made from a copy of Jacques Brault's v8 F-8U Crusaders. Adding the new wing, standard supersonic airfoils, gear doors that should work in v10 and converting the whole shebang into an object with Plane-Maker. By David Austin.