Japan Airlines is a Japanese major international and domestic airline.
It has operated many Boeing 747s , and from 1970s to 2000s (until its bankruptcy) they were seen worldwide airports including Guam / Saipan / Las Vegas.
In that era, JAL also operated freighter variants as a brand of "JAL CARGO".
This skinpack contains total 10x JAL liveries --- 4x passengers + 6x freighters.
This skinpack needs "Boeing 747 Common Normal map / RoughMet Textures pack Rev 2" 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.