© Licensed to London News Pictures. 30/10/2017. Portsmouth, UK.  Black smoke billows from the funnels of the Royal Navy's flagship, HMS Queen Elizabeth, as she prepares to depart Her Majesty's Naval Base (HMNB) Portsmouth for the first time since her arrival on 16/08/2017.  The new aircraft carrier is heading back to sea for the second stages of her sea trials.<br /> <br /> Flight trials involving the new F-35B Joint Strike Fighter are expected to take place off the coast of the U.S. next year, and she is due to come into service in the early 2020s.  Photo credit: Rob Arnold/LNP
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