Not much is known about this strange classified aircraft. What we do know that it is an EWAR craft. What role it carries out is debated - but some theorise that it's a radar cloak.
Fighter jets would fly alongside at a given distance and be hidden from enemy radar inside some sort of refractive bubble.
The only disadvantage to this dastardly tactic seems to be a very slow airspeed - owing to the drag caused by the intricate design.
It seems the UK Air force are turning to some unconventional means in these uncertain times......