Representatives of the U.S. Naval Air Systems Command based at Patuxent River Naval Air Station announced last week that a $68.4 million order has been placed with Boeing for the initial parts needed to start construction of the first four P-8A Poseidon aircraft destined for the RAF. The RAF has nine Poseidons on order which will restore the service’s independent maritime patrol and anti-submarine capability which it has lacked since the retirement of the Nimrod MR.2 and the cancellation of the Nimrod MRA.4 in 2010.
The P-8 is a militarised version of the Boeing 737 airliner and is optimised for the maritime patrol role featuring a stronger structure and the ability to carry weapons. At the heart of the mission system is the APS-137D(V)5 radar which provides Synthetic Aperture Radar (SAR) capabilities for imaging stationary vessels as well as conducting coastal and overland surveillance. It also has high-resolution Imaging Synthetic Aperture Radar (ISAR) for imaging surfaced submarines and fast surface vessels operating in coastal waters where surface clutter is high.
The withdrawal of the Nimrod has forced the RAF to rely on the Royal Navy’s vessels and their helicopters for the maritime reconnaissance and anti-submarine roles. However this was proven to be woefully inefficient and left the UK’s coastlines extremely vulnerable causing the MoD to embarrassingly have to ask for help from NATO allies on a number of occasions.