>>64221774
F/A-XX and F-47 are the names of the fighter elements of the Navy's and the USAF's identically named NGAD programs, respectively.
The Navy's program tends to be pronounced "en-jad", while the Air Force tends to pronounce it like "en-gad".
The F/A-XX is arguably the more important fighter considering how outdated much of the Navy carrier air wings are, which is Congress's opinion. F-47 is currently the DoD's (DoW soon, eyeroll) baby.