OSI Contracted by STM to Deliver INTS for Portuguese Navy AOR Program

June 08, 2026

OSI Maritime Systems (OSI) is pleased to announce that it has been awarded a contract by STM Savunma Teknolojileri Mühendislik ve Ticaret A.S. (STM) to deliver Integrated Navigation and Tactical System bridges for the Portuguese Navy’s two new Auxiliary Oiler Replenisher and Logistics Ships (AOR+). The ships, being built in STM’s shipyard in Turkey, will significantly enhance the Portuguese Navy’s capabilities. supporting joint force projection, amphibious operations, and replenishment at sea.

With a modular design, the AOR+ will not only provide logistical support and transfer fuel and cargo but also transport armoured vehicles, equipped to undertake humanitarian aid, search and rescue, and medical missions during crises. Fitted with an Integrated Communication System, the ships will have command and control capabilities that will enable efficient fleet coordination.

This contract follows the 2024 contract to deliver INTS onto the Portuguese Navy’s new Multifunctional Naval Platform (NRP D. João II) being built by Damen Shipyards, a contract by the Portuguese Navy to deploy ECPINS software Fleetwide and earlier this year, a contract for the 6 new NPO3S / OPV Batch 3 being built by WestSea shipyard. The integrated bridge system will be powered by OSI’s ECPINS 7 software, developed to be fully compliant to the latest NATO STANAG 4564 Edition 3 standard and built to fully meet the IMO MSC.252(83) Integrated Navigation System standard, a key requirement for the Navy, with the additional benefit of being able to support paperless navigation.

OSI’s ECPINS software is more than just a fully compliant WECDIS. Among the additional ECPINS capabilities contracted are the provision of the GNSS Denied capability and the Ship Helicopter Operating Limits (SHOL) modules. The GNSS denied capability, developed originally for submarine navigators operating dived without GPS, is fast becoming essential for surface navigators. Operating in challenging environments, it enables the accurate determination of own ship position in circumstances where a position fix derived from a global navigation satellite system is not available or unreliable due to spoofing, jamming, signal obstruction, or a lack of satellites.

Quotes:
“This is our first contract with STM, and we are excited to collaborate with them. Their leadership in the defense industry, particularly in shipbuilding, is impressive. The Logistics Support Ship is just one of the many vessel types they produce, making this partnership an excellent fit for both parties.
Jim Girard, President & CEO, OSI Maritime Systems

“Portugal is one of OSI’s longest-standing customers, and over the years, we’ve been fortunate to support the fleet. The past year has seen exceptional activity, particularly with the recent awarding of the Fleetwide License and INTS for the navy’s MPV and OPV programs. These achievements are a testament to OSI’s commitment to both our customer and our solutions.”
Jim Davison, VP, Business Development

Source : OSI Maritime Systems