Grey Funnel Line - HMS Iron Duke is a Type 23 frigate of the Royal Navy, and the third ship to bear the name. She was launched on 02 March 1991 by
![Photo of HMS IRON DUKE (F234) (IMO: 8949628, MMSI: 234604000, Callsign: GCOB) taken by peter.beentjes Photo of HMS IRON DUKE (F234) (IMO: 8949628, MMSI: 234604000, Callsign: GCOB) taken by peter.beentjes](https://photos.fleetmon.com/vessels/hms-iron-duke-f234_8949628_1297747_Large.jpg)
Photo of HMS IRON DUKE (F234) (IMO: 8949628, MMSI: 234604000, Callsign: GCOB) taken by peter.beentjes
![HMS Iron Duke (F234), a Type 23 (or Duke-class) frigate of the Royal Navy, departs for Exercise Joint Warrior 16-1 Stock Photo - Alamy HMS Iron Duke (F234), a Type 23 (or Duke-class) frigate of the Royal Navy, departs for Exercise Joint Warrior 16-1 Stock Photo - Alamy](https://c8.alamy.com/comp/G1TDYB/hms-iron-duke-f234-a-type-23-or-duke-class-frigate-of-the-royal-navy-G1TDYB.jpg)
HMS Iron Duke (F234), a Type 23 (or Duke-class) frigate of the Royal Navy, departs for Exercise Joint Warrior 16-1 Stock Photo - Alamy
![HMS Iron Duke, F234, a Duke class type 23 frigate. Berthed in Portsmouth Naval Base. Hampshire, England Stock Photo - Alamy HMS Iron Duke, F234, a Duke class type 23 frigate. Berthed in Portsmouth Naval Base. Hampshire, England Stock Photo - Alamy](https://c8.alamy.com/comp/EPTKFH/hms-iron-duke-f234-a-duke-class-type-23-frigate-berthed-in-portsmouth-EPTKFH.jpg)
HMS Iron Duke, F234, a Duke class type 23 frigate. Berthed in Portsmouth Naval Base. Hampshire, England Stock Photo - Alamy
![File:HMS Queen Elizabeth (R08) underway during trials with HMS Sutherland (F81) and HMS Iron Duke (F234) on 28 June 2017 (45162784).jpg - Wikimedia Commons File:HMS Queen Elizabeth (R08) underway during trials with HMS Sutherland (F81) and HMS Iron Duke (F234) on 28 June 2017 (45162784).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/9/9f/HMS_Queen_Elizabeth_%28R08%29_underway_during_trials_with_HMS_Sutherland_%28F81%29_and_HMS_Iron_Duke_%28F234%29_on_28_June_2017_%2845162784%29.jpg)