F15AB

F15AB is a designation that has appeared in speculative discussions and fan-created content as a potential variant of the Boeing F-15 Eagle family. There is no official record of an aircraft formally designated F15AB in production, procurement, or active service by any air force as of the present.

Within the broader context of the F-15 lineage, actual production and service have included the original F-15A/B, F-15C/D, the single-seat F-15E Strike Eagle, and later modernizations such as the F-15SA and F-15EX. The letters AB attached to F15AB do not correspond to any standardized, publicly documented designation, and its meaning varies among unofficial sources, adding to its speculative status.

In hypothetical discussions, F15AB is often described as a mid-life upgrade that would retain the basic airframe while integrating modern avionics and propulsion. Commonly imagined features include an active electronically scanned array (AESA) radar, advanced electronic warfare and data-link capabilities, improved engines or thrust vectoring, and enhanced survivability measures, potentially with conformal fuel tanks.

As an unofficial designation, F15AB has no formal program, contract, or official specifications. It is treated as a speculative or fictional variant in most sources. Readers seeking verified information should refer to official F-15 lineage documentation from Boeing and the air forces that operate the type.