Wait, I thought the NSA was supposed to be a replacement for the 757? And how, other than new engines, isn't the 320 family obsolete?
That said, I'm sure Airbus was thinking the same thing about what appears to be an NK negotiating tactic. Because that worked out so well for Airbus before HA (A338) and AA (A359) cancelled their respective Airbus orders in favor of the Boeing 787.
You’ve hit the nail on the head. The NSA is targeting 757/767 size, not the 737.
What does the S stand for? The NMA is the 757/767 size. The NSA would be a 737 replacement.
I was referring to the proposed 797; I've seen both terms used interchangeably for some reason, but you're correct about the NMA being the proposed replacement for the 757. My point to the poster in my initial reply that I was replying to was that the 737 is not obsolete, at least not now; otherwise, WN, AA, WS, AC, UA, et al. wouldn't have committed to the 737 MAX series.
2019: DAL, MCI, PHX, LAS, DFW, SAT, ORD, SLC, SEA, DTW, PHL, MIA, LAX; B73G (WN x3), B738 (WN, AA, DL), A20N (NK), MD83 (AA), B788 (AA x2), CS1 (DL), B739 (DL), B712 (DL), B752 (AA), B763 (AA), B77W (AA), B789 (AA)