Researchers at MIT, led by Dr Mark Drela and tasked by NASA, have come up with a double-wide design: instead of the traditional single cylindrical body, two partial cylinders are joined together with three engines at the back of the plane between the double tail.
In December it was disclosed that Iraq would be allowed to acquire 36 single-engine Lockheed Martin F-16s and that Oman would double its fleet of the same plane to 24 aircraft.