Also, in the early 1970s, World operated three Boeing 747 aircraft and was the launch customer for the "flip nose" front-loading variant of the 747. Later, World acquired DC-10s that were retired in 2010. World experienced heavy losses in the 1980s as a result of operating scheduled passenger services. In the late 1980s, the company moved its headquarters from Oakland to Washington Dulles International Airport, acquired Key Airlines from Bain Capital's Presidential Airways, and established ties to Malaysia Airlines. World was burdened financially as its cash was siphoned off by parent WorldCorp to support a telecommunications venture in which the parent had invested. During the first Persian Gulf War, World did a substantial amount of profitable business for the military, enabling the addition of the MD-11 to the fleet. During the mid-1990s, World operated the military passenger trunk route from Osan Air Base, Korea and Kadena Air Base, Okinawa to Los Angeles, using MD-11 aircraft. World has been headquartered near Atlanta Hartsfield International Airport.