TA Teaming Agreement between DAC and Vought, which defined the Vought effort on the C-17 program, was signed in February of 1983. As a result of the teaming agreement, Vought was given the responsibility for the fabrication of the vertical stabilizer, and horizontal stabilizer, the nacelles and the Universal Aerial Refueling Receptacle Slipway Installation (UARRSI) panel, plus the Engine Buildup Unit (EBU) on the four Pratt & Whitney F117-PW-100 engines.
The Secretary of Defense approved full-scale development of the C-17 in February of 1985, followed by the Defense Acquisition Board first production lot authorization in November of 1987. Prior to that, in February of 1987, DAC awarded a contract to Vought to fabricate the items which were agreed to in the 1983 teaming agreement and assembly of the T-1 aircraft was begun August of 1988.
First flight occurred on September 15, 1991 when the T-1 aircraft flew from the Long Beach Airport to Edwards Air Force Base. In June 1993, the first production aircraft was delivered to the Air Force.
For mor information on the C-17 visit the following sites:
The U. S. Air Force