Mogami-class (30FFM)

The development of this class of multi-mission stealth frigates began in 2015 when the Japanese defense budget allocated funds for a compact hull design with multi-functional capabilities. The vessel was conceived to replace aging fleets of destroyers and destroyer escorts, specifically the Asagiri and Abukuma classes. While the original procurement plan envisioned a production run of 22 units, the program was restructured in 2023. The revised strategy limits the initial design to 12 hulls, with subsequent units transitioning to an upgraded configuration known as the New FFM. Construction commenced in 2019, and the first vessels entered active service in 2022.

The platform is engineered with a primary emphasis on stealth, automation, and multi-mission flexibility. Its hull design incorporates research from stealth technology demonstrators to reduce radar cross-section. It represents the first application of a combined diesel and gas propulsion system within its naval service. A defining feature is the high degree of automation, which facilitates a significantly reduced crew complement compared to preceding classes of similar size. The vessel utilizes an advanced integrated combat information center featuring a 360-degree circular screen and augmented reality technology to centralize navigation, steering, and ship management. Armament consists of a naval gun, anti-ship missiles, point-defense systems, and vertical launching systems for anti-submarine warfare. The design also incorporates a rear ramp for the deployment and recovery of unmanned underwater and surface vehicles, alongside a hangar for a maritime helicopter.

These frigates are operated by the Japan Maritime Self-Defense Force to modernize its surface fleet and replace less capable legacy vessels. Beyond domestic operations, the platform has been utilized for international engagement, including port calls and joint military exercises in the Indo-Pacific region to demonstrate its operational capabilities. The design has been selected for international procurement to form the basis of a new general-purpose frigate program for the Royal Australian Navy, involving future joint development and production agreements. Other regional naval forces have also expressed interest in the platform for potential acquisition.