HMS Daring. 28.02.14 (c) Rob Arnold
According to the information provided by the sources, the service life of the missiles is increased at least to 2020 year. It is expected that their combat effectiveness will be maintained "by their own resources" and their technical composition, without involving industry.
In this case, at the moment, Britain has not adopted a specific program to replace Harpoon Block 1C. Nominally, in conjunction with France, the Future Cruise Anti-Ship Weapon advanced anti-ship missile development program is open, however, its entry into service is expected no earlier than 2030.
Anti-ship missile systems GWS 60 (Harpoon Block 1C) were purchased in the US in 1984 for the armament of four 22 type frigates of the 3 and 16 series, which were later built of the 23 type frigates. Currently, they are equipped with all 13 23-type frigates remaining in service and three out of six new 45 type destroyers (Daring, Diamond and Duncan).
Shooting LCS-4 US Navy Harpoon Block 1C (c) US Military News: