In addition, Airbus is certifying the A340-600 to a maximum of 475 seats in all economy seating, in an effort to become a viable replacement for the 747-400 for many carriers currently operating that type, making the aircraft more attractive to ULCC and charter operators.
Airbus has a significant number of residual value guarantees for the A340, and is taking this action to avoid potential losses from guarantees, and convince customers that the A340 can be a viable interim aircraft, if not for a longer period, before the A350 arrives.
One potential solution to Airbus difficulties with the A340 program is waiting in the wings, as Iran Air needs a new fleet. With the
Could Iran Air be a big part of  win-win solution to the A340 dilemma? It makes sense for both parties, so stay tuned.
Iran needs A320/A330 size and range aircraft. They have a very limited requirement for A340-500/600, and that is on the assumption Iran will hold its end of the bargain. As for RR “four for two” a very interesting concept which means that RR will take a hit on its profit or they have been overcharging their customers, just saying.
I believe the current sanctions regime limits sales to Iran to aircraft with less than 10% US content. That seems to eliminate Boeing aircraft of course, but also all aircraft with GE or Pratt engines (ie all modern narrowbodies), leaving, maybe, the Airbus A330 and A340-600 with Rolls Royce engines.
Correct. But France is being very strong on forcing Iran to comply with the strictest understanding of sanctions.
But Air Iran don’t have any ETOPs so they need 4 engines
And the use of US dollars, which a few airlines and companies have been fined substantially for in the past, eg Qantas selling their 747s via subsidiaries to Air Iran, infact the aircraft were flying under charter in Qantas colours
They won’t need ETOPS for any of their existing destinations (bar Caracas if they are still flying to it), neither would they need that for most of their potential destinations (USA / Japan / Australia excludeD).