Iron Duke carries a number of weapons and sensors which make her a multi-purpose combat vessel. Like all T23s, her original design role was anti-submarine warfare, but she can be employed in a variety of roles. She carries a Lynx Helicopter which can be used in an anti-submarine and anti-surface role as well as for humanitarian and search and rescue purposes.
Iron Duke has intercepted several large consignments of illegal drugs being sent from the Caribbean to Europe, in many cases with the aid of embarked United States Coast Guard personnel. She was also involved in action off Libya in 2011 on her way back from a patrol in the Persian Gulf.
More recently, Iron Duke has been the First of Class fit for the Royal Navy's new Type 997 Artisan 3D, successfully firing her missile system, using the new radar combined with the updated 'SWMLU' Seawolf missile targeting system, in the English Channel.
The model reflects the upgraded ship.