Designed in response to a requirement issued by the Royal Air Force (RAF) to replace its fleet of ageing Avro Shackletons, the Nimrod MR1/MR2s were fixed-wing aerial platforms primarily for anti-submarine warfare (ASW) operations; secondary roles included maritime surveillance and anti-surface warfare. It served from the early 1970s until March 2010.Cook, James. "Final air miles for 'spy in the sky' crews." BBC, 26 March 2010. Retrieved 20 October 2010. The intended replacement was to be extensively rebuilt Nimrod MR2s, designated Nimrod MRA4. Due to considerable delays, repeated cost overruns, and financial cutbacks, the development of the MRA4 was abandoned in 2010.
Designed in response to a requirement issued by the Royal Air Force (RAF) to replace its fleet of ageing Avro Shackletons the Nimrod MR1/MR2s were fixed-wing aerial platforms primarily for anti-submarine warfare (ASW) operations; secondary roles included maritime surveillance and anti-surface warfare It served from the early 1970s until March 2010Cook James "Final air miles for 'spy in the sky' crews" BBC 26 March 2010 Retrieved 20 October 2010 The intended replacement was to be extensively rebuilt Nimrod MR2s designated Nimrod MRA4 Due to considerable delays repeated cost overruns and financial cutbacks the development of the MRA4 was abandoned in 2010