... or Tornado Integrated Avionics Research Aircraft. Used by now-Qinetiq for various test campaigns to evaluate air combat technologies (IRSTs, HMDs, sensor fusion, UAV control and various cockpit technologies etc.).
I'm posting this for no particular reason other than that I came across this rare and brilliant photo by pure chance, showing it fitted with an IRST (And mystery pods which are implied to be RAPTORs but don't look anything like it - why would you carry two anyway? Camera pods for separation tests, perhaps?).
http://www.mc.com/mediacenter/image.aspx?id=1078
