![]() ![]() ![]() In 1976 the Update II programme provided an infrared detection system and sonobuoy reference system and the aircraft were fitted with the Harpoon missile. In 1975 an improved navigation system, expanded computer memory, and tactical displays were provided under the Update I programme. “The P-3 Orion is a land-based maritime patrol and anti-submarine warfare aircraft.” The final transition was completed in May 2020. The US Navy airborne patrol squadron VP-40 began the transition of P-3C Orion to the Boeing P-8A Poseidon maritime patrol aircraft in November 2019. The US Navy’s P-3C aircraft are being replaced by the advanced Boeing P-8 Poseidon. The P-3C first entered service in 1969 and has been continuously upgraded and updated with new avionics systems and mission equipment. P-3A was first operational in the US Navy in 1962. The aircraft carries the US Navy designation P-3, the Canadian Forces designations CP-140 Aurora and CP-140A Arcturus, and the Spanish Air Force designation P.3. More than 400 aircraft are operational with 21 operators in 17 countries including the US, Argentina, Australia, Brazil, Chile, Greece, Germany, Canada, Japan, New Zealand, Norway, Pakistan, Portugal, Taiwan, Spain and Thailand. More than 700 P-3 aircraft have been built by Lockheed Martin. The P-3C Orion land-based maritime patrol and anti-submarine warfare aircraft is operational in the airforces of ten countries. ![]()
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