From the Telegraph today:
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Daring is crowned by a huge 30-metre high Samson radar that can track more than 1,000 targets at once.
The system is so powerful it can monitor all take-offs and landings from every major European airport within 200 miles of Portsmouth.
The ship can engage 12 air targets and will carry Harpoon anti-ship missiles and Tomahawk cruise missiles.
Officers claim that if it was stationed in the River Thames, its weapon system would be able to single-handedly destroy any incoming airborne attack on Greater London.