As the previous posts have indicated, A MD-10 is a freighter version of the DC-10 that has a two man cockpit in place. But, it is not just putting a MD-11's cockpit into a DC-10! The cockpit's software and all it's displays are all brand new. A DC-10 is an analog aircraft while the MD-11 is digital. To produce commonality between the two, Honeywell designed and programed the new flight deck to be installed on the MD-10. FedEx is in the process of getting everything approved and installed. The first flight tests took place several months ago and FedEx has a modification line in Mobile, Alabama to make the flight deck changes. Freighter conversions are also being done in TUS and MOB as well.