Nimrod R Mk 1
Project Helix will upgrade the Royal Air Force (RAF) fleet of Nimrod R Mk1 aircraft. This intelligence upgrade to the British Nimrod platform focuses on maintaining the capability of the Nimrod R out to 2025 and includes upgrades to the aircraft mission systems, associated ground stations and training facilities.
http://www.lockheedmartin.co.uk/products/helix.html
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