DC8 Ferry flight on 2 eng
I am a DC8 check airman and during my training at UAL the 2 eng ferry flight was never mention. In the AFM doesn't even consider the 2 eng Ferry flight, all the performance charts are made for the 3 eng ferry flight. Besides all that, I don't think that the DC8 at any given weight with any kind of engines could fly in the event of a 3rd eng failure.
At a weight of 300.000lbs the airplane needs way too much power to start the taxing on 2 engines.