Northwest Airlines was a major international and domestic airline in United States.
It had an Asia network from USA to Japan, Korea, Hong Kong and from Japan to Guam + Saipan.
Boeing 747s were used for those international flights .... so NWA's B747s were well seen in Guam.
After merging Republic Airlines in 1986, NWA's US domestic flights were added containing Las Vegas.
And in the merger time with Delta Air Lines from 2008 - 2010, NWA's B747-400s were transferred to Delta and used to 2019.
This skinpack contains 4x NWA's B747 and 1x Delta's B747 liveries.
This skinpack needs "Boeing 747 Common Normal map / RoughMet Textures pack" from here. --- https://www.digitalcombatsimulator.com/en/files/3320106/
When you see strange checker blocks on the skins in DCS World, the "Boeing 747 Common Normal map / RoughMet Textures pack" is not installed / not set-up correctly.