| The rumoured F-111 replacement. Strongly based on F-23 technology, it incorporates much of that aircraft's technology, i.e. low observability, engine exhausts and intakes, supercruise capability etc., as well as swing wing. At maximum sweep, the aircraft achieves it stealthiest configuration.
This aircraft has also been put forward as being responsible for Chris Gibson's North Sea sighting.
This aircraft is highly speculative, and in all likelyhood may not exist, due to the overlap of its mission with other programmes. However, there have been several sightings which match this overall description, so I guess the jury is still out on this one.
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