North American F-107, often informally called the "Ultra Sabre," was a 1950s-era experimental fighter-bomber developed by North American Aviation. Originally conceived as an advanced version of the F-100 Super Sabre, it featured a radical design dominated by a large jet intake mounted on top of the fuselage behind the cockpit. Key Technical & Historical Facts Design Purpose: It was designed as a Mach 2-capable tactical fighter-bomber for the U.S. Air Force, specifically intended to carry a nucle