Something LO conveniently doesn't mention in his...posts but which I'm sure he full well knows is, the F-15 AESA sets mentioned in the DSCA notice will likely extend to just the antennae and a few associated odds & ends.
The F-15K fleet's current APG-63(V)1 radars were delivered with the (V)2 & (V)3 AESA upgrade in mind, and hence have the requisite back-end hardware and associated plumbing & cooling to accommodate the AESA antenna.
As GreenKnight correctly states, the DSCA notice is for the bespoke gear required to bring the ROKAF's current fleet of F-15E-like F-15Ks up to a standard similar to that of the Singaporean SG plus a few additional Saudi SA bits also thrown in. No airframes, no engines, no GSE, no sims, no trainers, no training, no initial support, and only equipment specific tech pubs...
I would guess that both DSCA notices are under consideration by the RoK - it's not an either or, it'll probably be both. They'll upgrade their F-15Ks, AND they'll buy F-35A or B to replace some of their older F-16s.
Last edited by FoxtrotAlpha18; 4th Apr 2013 at 04:27.