United States, Oct. 30 -- Boeing is strengthening Australia's maritime surveillance and anti?submarine capability with the first Royal Australian Air Force (RAAF) P?8A Poseidon inducted into an upgrade program as the service also begins to integrate its 13th aircraft into the fleet.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 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.The first tw...