But the Concorde didn't have what would considered acceptable First class seats. They were more like Club Europe seats, and probably even smaller than world traveller plus seats.
Indeed.
A better apples to apples comparison is how many Concorde seats could fit in a 747 and I think you would get at least 300 of them in there.
Probably.
And yet Concorde was a class beyond First.
If you have a choice between sitting 4 hours in a Concorde or 8 hours in a subsonic plane - how big a seat would give you the equivalent value to reaching the destination in 4 hours and getting out of the Concorde seat? World Traveller Plus, Club World or First?