This was discussed here a while ago. Synopsis: They repainted one leased MD11 with a paint scheme very similar to that which was flown on their 727s during the end of the Vietnam war. World's aircraft were involved in some storied missions in that era, including The Last Flight From Da Nang, wherein Ed Daly, the airline's founder, Ken Healy, an esteemed captain, and others flew a stuffed-to-the-gills 727 back from Da Nang after taking off in gunfire from the taxiway, when a humanitarian mission went sideways as desperate South Vietnamese troops stormed and tried to board an airplane intended for children and other civilian refugees. They also were involved in Operation Babylift, trying to bring back South Vietnamese orphans caught in the maw of the advancing communists. To celebrate the anniversary of the humanitarian missions, World flew this repainted MD11 from California to Vietnam for a visit, joined by Healy (who is still alive), other flight crew from the time, and various American citizens who came here as Vietnamese refugees and orphans. I may have the details a bit off, but that's the gist of it. I understand that the a/c is presently expected to stay in this livery until it is returned to the lessor. It's a head-turner wherever it goes.