It might be an X-55 competitor. The USAF has a program to develop a STOL cargo aircraft from composites, by modifying a current cargo aircraft with composites. Lockheed Martin won with a modified Dornier 328. The losing competitor planned to use an AN-72. which this appears to be. As an aside, it is an honor to be of some slight service to Hesham. As a second aside, I am surprised that there is such a program. Composite aircraft of this size is nothing unusual. The onlyh problem with composite cargo or commercial aircraft is it's a pain in the ass to fix when a truck backs into the fuselage. With aluminum you can just pound it out..