A USAF E-11A BACN, callsign BLKWF01, flew earlier today from Ramstein Air Base, Germany, to Prince Sultan Air Base in Saudi Arabia.
Meanwhile, another E-11A, call sign BLKWF02, is now leaving the area, suggesting an aircraft turn.
The E-11A serves as an airborne communications relay, allowing US forces to maintain connectivity between aircraft and ground units during military operations.