An interesting aircraft heard refuelling on the Flamboro AR track yesterday was ‘Palm 14’ an E-8C JSTARS 97-0200. The aircraft was refuelled by ‘Quid 89’ a KC-135 flying out of RAF Mildenhall. The boom frequency for the refuelling was 243.650. Although the E-8C was showing up on SBS there was no Mode-S callsign attached.