Just seen Saudia Arabia Air force on mode S landing at Waddington Air-force base EGXW a Lockheed C130H ,mode S 7102E2,flight id RSF905,never seen enything before on mode S and military landing at Waddington,very unusual.
I spotted one at Warton a few weeks ago:
http://www.airnavsystems.com/forum/index.php?topic=2507.msg63809#msg63809
Rod