Did a little looking and here's the answer I came up with.
VS has a few different 747's because they were someone else's order. They currently have 8 in service.
G-VBIG - Leased from ILFC
G-VAST - Originally ordered by VARIG
G-VXLG - Originally ordered by VARIG
These 3 all have complete sets of windows.
I'm pretty sure these aircraft are the LHR aircraft
The other 5 that VS currently has active were all originally ordered by Alitalia, who then cancelled the order (
http://boeing.mediaroom.com/2000-03-16- ... g-747-400s )
G-VROS, G-VGAL, G-VLIP, G-VROM, G-VROY
These 5 are all missing windows on the right rear of the aircraft, and should be the LGW aircraft. I guess the missing windows has to do with planned aircraft layout by Alitalia
Things that fly, Girls and Planes...