I know a bit off topic, but what happened to Friendship 1? I know UA
got rid of thed 747sp's long ago, but I have a personal photo taken at SFO
of this aircraft, and wanted to board the flight going to HKG
that day. How many special jets like these have UA
done over the years? What airline could be the biggest operator of special livery jets at one time? Western Pacific? Or maybe F9
with their individual animal named jets? Maybe BN
with all their different color combinations plus the 2 Calder jets.