The Royal Australian Air Force (RAAF) has become the first global operator of the Boeing P-8A Poseidon maritime patrol aircraft to be inducted into the Increment 3 upgrade programme for the type.
Under the four-year Increment 3 Block 2 modifications, the RAAF’s P-8As will receive new antennas, sensors and software to improve computer processing and communication systems, allowing aircrews to search for, detect and target the world’s most advanced submarines.
The first two RAAF P-8As will be upgraded by Boeing at its maintenance, repair and overhaul facility in Jacksonville, Florida. The RAAF aircraft will also be the first international P-8s to be upgraded at the facility, where teams continue to upgrade and deliver P-8As to the US Navy. The remaining aircraft will be modified by Boeing at its Deeper Maintenance & Modification Facility near RAAF Base Edinburgh, South Australia.
Meanwhile the RAAF’s P-8A fleet is coming close to completion. The most recent Australian Poseidon to be delivered, the 13th, arrived at RAAF Base Edinburgh, South Australia, on 29 September 2025, while the 14th and final aircraft is scheduled for delivery in 2026.
“These upgrades, together with the delivery of the 13th P-8A, mark two important advancements for Australia’s defence of its vast coastline,” Naomi Smith, director of Boeing Defence Australia (BDA) Sustainment Operations, was quoted as saying in a company press release. “Increment 3 Block 2 will deliver next‑generation detection and targeting for aircrews, while the newest aircraft strengthens fleet readiness and operational reach, all while maintaining interoperability with the US Navy P-8A fleet.”
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