The support requirements for Apollo, compiled by NASA's Office of Manned Space Flight (OMSF), originally stated a need for twelve heavily instrumented, long-range, high-speed aircraft to supplement the telemetry and communication support to be provided by the Apollo ships. After program refinement that the aircraft requirement would be eight, six to be on station with two standby spares. 61-0326 was one of the original eight Apollo Range Instrumentation Aircraft stationed out of Patrick Air Force Base, Florida.
Constructed C-135A-BN. Construction Number 18227.
Conversion to EC-135N with electrical and structural modifications at Douglas Aircraft, Tulsa, Oklahoma.
October 31, 1967
Arrived Patrick Air Force Base, Florida.
January 1, 1968
Aircraft On line and Operational.
Transferred to Wright-Patterson Air Force Base, Ohio, 4950th Test Wing.
November 1, 1984
Converted to EC-135E.
November 1, 1992
Last inventory record WPAFB.
June 1, 1998
AMARC Inventory PCN AACA0122.
January 26, 2009
Source: Randy L. Losey