Brief visit for work saw the following through the day:
ZD620 BAe125 RAF
?? Merlin RAF
T21-03/35-39 CN295 Spanish AF
50+33 C.160D GAF
?? C.26 USN hangared - is there just one in Europe?
?? SH.60 USN hangared
??/GF-116 Hughes 500 with floats
Also, about 10 minutes from the airport, a G91 on a pole on a hill (dayglo/grey)
4 C-26's based in Europe according to Scramble. 2 at Naples and 2 at Sigonella.