This is The Mirage Factory's E-3A Sentry packaged as an individual aircraft for SF2 series. Included is a NATO skin by AmokFloo, the original 552d Flagship skin, and skins representing each squadron that flies the Sentry. Also included are decals for all NATO assigned aircraft and the Core 23 aircraft purchased by the USAF in the 70's. This should add some airborne eye candy to your installs, particularly Europe and the Middle East.
To install simply drop the folders into the correct areas of your mods folder.