
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.
Australia’s 13th P-8A Poseidon arrives at RAAF Base Edinburgh, South Australia (Commonwealth of Australia image). Australia is the first global P-8A customer to receive Increment 3 modifications.
The newest RAAF P-8A Poseidon was delivered Sept. 29, with the 14th aircraft 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,” said Naomi Smith, director of Boeing Defence Australia (BDA) Sustainment Operations. “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 U.S. Navy P-8A fleet.”
The first two RAAF P-8As will be upgraded by Boeing at the Jacksonville maintenance, repair and overhaul facility. The RAAF aircraft are also the first international planes to be upgraded at the facility where teams continue to upgrade and deliver P-8As to the U.S. Navy. The remaining aircraft will be modified by BDA at its Deeper Maintenance & Modification Facility near RAAF Base Edinburgh, South Australia.





