The other point is that once we get down to under 10 OF frames and then less I think that we will find that OF will start to cluster around certain routes where the demand for paid F is low (not of course the same as if the cabin is full). So I would expect routes such as JNB to go all NF along with say SFO and MIA. For sure a route that has an A380 and a 747-400 will be prioritised for consistency (as even NF on the 747-400 will still be inferior compared to a 777, A380 or 787-9). I would suspect that the other option is that some routes that don't have F might also see the 747-400 if demand warrants it with either F closed or used as a J oversell. For sure much into 2014 OF will be a rarity on the big trunk routes.....

FD.