The Delta fighter was a veritech developed by the Robotech Expeditionary Force after it was stranded at Tirol. This craft was developed as part of a prototype design under the direction of Doctor Emil Lang where it was stationed onboard the SDF-3. Lieutenant Rebecca Nicks was in charge of oversight of the craft. However, Lynn Kyle commandeered the fighter in order to spirit Lynn Minmei away from the SDF-3 so that she could escape the clutches of General T. R. Edwards. General Edwards launched his elite Ghost Squadron to retrieve Minmei