While the YRB-89 looks virtually the same as its counterpart, the YR-99, the main difference between the two is the role they were developed and assigned for, with the former being a bomber and the latter being a multirole.
The YRB-89 lacks the stealth that its fighter variant has and is much slower in speed.
YRB-89s were utilized by the Leasath Air Force during the early stages of the Aurelian War to bomb key structures of the Aurelian military, such as Phuku Lagolla Air Base and Port Patterson. All deployed units were shot down by the Falco Squadron. These bombers were last seen over the port and were never deployed again for unknown reasons.
- The YRB-89 shares the YR-99's Color 2 from Ace Combat X: Skies of Deception.