Quite funny how Iran/Mahan are being discussed at the moment as they've just taken delivery of two ex-LH A340's. A few years back they planned on leasing an A340 from HiFly which they intended to operate on services to BHX and KUL. The deal never came off but I wonder if Mahan we're still flying into BHX would we be seeing the airports first regularly scheduled A340?
Possibly if the load factors were decent on the past Mahan Air flights on the A310 and if the runway could handle it.