“It’s a special day for the base and our mission,” said 96th Test Wing commander. “We’re very proud to be part of the next evolution of this historic aircraft. I look forward to seeing this unique test collaboration prepare the F-15EX for the warfighter.” The aircraft bears its unit insignia EX1 marked with “ET” from the 96th TW’s, 40th Flight Test Squadron. The EX2, arriving in April, will display the “OT” tail flash to represent the 53rd Wing’s 85th Test and Evaluation Squadron. To support the combined test effort, both test-squadron commanders ferried in the EX-1 together.