I'm currently reading Clive Irvings book "Widebody" the story of the 747 and was wondering with Juan Trippe so influential in the launch of the 747 at a time when few other airlines were interested and the skeptics doubted the need for it.
Did Pan Am order any subsequent 747-123s other than the initial 25 and the 747SPs later purchased.
I can't remeber if they did or not but even the 747-123 always looked impressive in the Pan Am blue and white.
I suspect that Pan Ams International only passengers was already starting to cripple them and so probably suspect there were no further orders.
Book is a great read