how much is Narsasuaq used as enroute alternate/ emg field and how realistic is this. Anyone?
Was there end of 90's and eary 2000s a few times . Concur with what
twochai said.
Plus runway only usable one way for most jets ( take off is opposite direction as landing ) with tailwind limitations an issue for some types. Same problems for Pax : no stairs ( back then) and accommodation limited to 40-50 pax max.
For info Narsasuaq total population is around 100.