Golf Victor Foxtrot was the call sign for a concorde (a supersonic plane). It travelled down a time corridor as it began its deceleration which took it back 14 million years to the Jurassic period. The passengers and crew were taken by Kalid as slaves for him to use to attempt to gain access to the Xeraphin's Citadel.
Following a conflict with the Doctor, the Master materialised his TARDIS around Golf Victor Foxtrot. He then operated his Chameleon circuit to make his TARDIS assume the concorde's exact appearance. Later the Doctor made a deal with the Master which allowed the crew of Golf Alpha Charlie to use parts from Golf Victor Foxtrot to make repairs and depart. Golf Victor Foxtrot was left behind and over the years the plane became buried. When Golf Alpha Charlie returned to their own time, Golf Victor Foxtrot was buried in the sewers near Heathrow Airport. (DW: Time-Flight)