The 'T' model was another telemetry collector to supplement the RB47 TellTwo operation in Turkey. The RB47 covered the launch and the RC135T covered the final phase of the missile flight. Shortly after the RC135T and S became operational the RB47s were kicked out of Turkey. The 'S' and 'T' and 'E' models operated out of Shemya AB in the Aleutian Islands.