The Rolls-Royce Trent XWB engine which is being tested on the Airbus A380 but will be fitted to the new A350 aircraft, which is due to go into service from next year.
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Slowly brightening up later in the day, with some warm sunny spells possible by evening.
Any mist and low cloud will clear during the morning, leaving bright or sunny spells.
Beginning grey and murky again with extensive low cloud and some patchy rain.