WATCH: HMS Queen Elizabeth at sea

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MoD footage of HMS Queen Elizabeth as she conducts vital system tests off the coast of Scotland.

The carrier left Rosyth, where she has been under construction since 2014, on Monday with 700 sailors and 200 industry contractors on board.

HMS Queen Elizabeth

HMS Queen Elizabeth

Type 23 frigates Sutherland and Iron Duke joined the 65,000-tonne aircraft carrier, along with Merlin Mk2 helicopters of the Fleet Air Arm, to guard the seas as the trials get under way.