F1-11 Maximum range possible….

Hi all

Was debating with a war historian at work the maximum mission endurance of the F1-11. This was having had one of those familiar ‘what if’ conversations about the Falklands War. The fictional situation arised of the RAF having gone through with their original intention of purchasing the F1-11 in place of the TSR2, and whether it would have had the range and endurance to have completed the ‘black buck’ missions that the Vulcans undertook? Or would it have had the same problem as the Buccaneer in ‘running dry’ after such a long mission.

Thanks for any help with this.