radar with four fixed antennas, which will meet the requirements of a broad range of missions, from ship self-defence to extended air defence, and can deploy MBDA Aster 15/30. The first SEA FIRE radar was delivered for integration in the first frigate in April 2021. The compact version of the CAPTAS-4 towed-array sonar, delivers the same ultra-long-range detection performance as the original version of CAPTAS-4 with 20% lower weight and a footprint almost 50% smaller. The Aquilon integrated digital communications system and an IFF (Identification Friend of Foe) associated with the SEA FIRE radar. The SENTINEL system, an advanced digital electronic warfare system built around a modular architecture. Exports In September 2021, Greece signed an agreement with France's Naval Group to purchase three FDI frigates with an option for one more for the Hellenic Navy as part of a $5 billion defence package. It was reported that the Hellenic Navy ships would eventually carry a more extensive weapons fit, capable of carrying up to 32 Aster-30 air defence missiles (in 4 Sylver A-50 or 3 A-50 and 1 A-70 launchers for 8 MdCN missiles. This will permit the Hellenic Navy to operate three ships with 32 air defence missiles plus 21 point defence missiles in a Mk31 21-cell launcher of RAM Block 2B surface-to-air missiles, 8 Block 3 Exocet anti-ship missiles, 2 dual launchers MU90 torpedoes and CANTO torpedo countermeasures. Two of the vessels, destined for the French Navy in 2025, now will be delivered to the Hellenic Navy. The date of the construction agreement was anticipated to be at late 2021 or early 2022. In December 2021 it was reported that an agreement for construction had been signed by France and Greece with the actual contract for the construction of the ships having been signed on 24 March 2022. In February 2022, documents released by the Greek Parliament indicated that initially the first two frigates for the Hellenic Navy would be equipped similar to their French counterparts in a "Standard-1" configuration (with 16 Sylver A50 cells). By 2027 the two ships would be upgraded to a "Standard-2" configuration with 32 A-50 cells as well as with the RAM Block 2B. The third Hellenic Navy frigate would be built from the outset in the "Standard-2" configuration. According to the Hellenic Navy, the ships will be named after three great ancient Greek admirals: Cimon (), Nearchus (, ) and Phormio (,