You experts here have it all wrong. This is the new, “Top Secret “ 747 in Dump configuration mode. It’s used for passengers who need to rapidly de-plane to catch a connection. For cargo, you dump it right into waiting trucks.
If I were King of the Forrest, I'd go for a VTOL conversion of a 747. Just think..... Add a couple more engines, some ducted fans, a few of those fiddly bits computer thingies to make it work and other parts to make it look cool. Just imagine; Watching that big plane lift into the air, straight up. Then a pivot to go thataway. Transition to forward flight, and wow. Just, wow!