The and only NC-135W Big Safari program test bed out of Majors Field outside Dallas. Call sign SAME40 heavy.
61-2666 is a former WC-135B. It features non hush-kitted TF33-P-5 engines from the 1960s. It is a test bed for the RC-135 Family of aircraft and is based at Majors Airfield in Greenville, Texas.