The British defense consortium Babcock International has unveiled the final “Arrowhead 140” design for the upcoming “Type 31” class of general purpose frigates. The warships will replace the aging “Type 23” fleet and enhance the Royal Navy’s ability to conduct maritime security, surface warfare, and sea interdiction missions across the globe. . The Type 31s will serve as a frontline capability alongside eight Type 26 anti-submarine warfare vessels, which BAE is currently constructing. 

The Arrowhead 140 is expected to sit at 5,700 tonnes and 138.7 metres in length. Babcock’s Team 31 has selected the Danish-operated “Iver Huitfeldt” frigate design as the baseline for their Type 31 pitch. Equipped with helicopter in-flight refuelling (HIFR) capabilities and an on-board hanger, the frigate will hold naval helicopters, unmanned systems, and light aircraft. Due to its flexible design, the Type 31 can be fitted with a 32-cell Mk-41 vertical launch system, which can fire a cocktail of land attack and anti-air missiles, including the battle-proven “Tomahawk”. The large deck area can host eight canister-launched surface-to-surface guided weapons. 

The first of the five planned Type 31s will hit the seas in 2023 and the entire class is scheduled to be completed by 2027. The total budget of the Type 31 program is estimated at around £1.25bn.


CORRECTION: Unfortunate phrasings contained in an earlier version of this article caused some readers to believe that the Type 31 will be a completely unmanned warship, whereas the writing team wanted to emphasize that the Arrowhead 140 design will benefit from a range of unmanned systems which allows for a reduction in crew size. We encourage our readers to inform us about factual or typographical errors. 

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