Brandenburg-class (F123)

The Brandenburg class, designated F123, is a series of frigates operated by the German Navy. Ordered in 1989 to replace the Hamburg-class destroyers, the vessels were developed by Blohm + Voss as a clean-sheet design. This development was intended to address technological limitations in previous escort ships, which lacked onboard helicopter facilities and modern propulsion. The ships entered service between 1994 and 1996.

The class is designed for anti-submarine warfare as its primary mission, while also providing local anti-aircraft defense, surface-to-surface warfare capability, and tactical command of naval squadrons. The hull design incorporates signature reduction measures to minimize the radar cross-section. Propulsion is provided by a combined diesel or gas system driving two controllable pitch propellers.

Onboard sensors include air search, air and surface surveillance, and fire-control radars, alongside a hull-mounted sonar. One vessel in the class also operates a prototype towed array sonar. The armament consists of a vertical launch system for anti-aircraft missiles and separate launchers for short-range air defense. Anti-ship missiles provide surface-to-surface capability, having replaced the original missile systems during the ships' service lives. For anti-submarine operations, the vessels carry helicopters equipped with torpedoes or air-to-surface missiles and are fitted with ship-borne torpedo tubes. A multi-purpose naval gun and rapid-fire autocannons provide additional surface engagement capabilities.

A modernization program began in 2010 to update the combat management and identification systems. A subsequent contract awarded in 2021 involves the replacement of the original air and surface surveillance radars and fire-control systems.

The ships are based in Wilhelmshaven as part of the 2nd Frigate Squadron. In December 2015, the Mecklenburg-Vorpommern sustained damage to its bow following a collision with a container ship in the Kiel Canal. Between August 2021 and February 2022, the Bayern conducted a deployment to the Indo-Pacific region, which included maritime exercises with the Japan Maritime Self-Defense Force and port calls in Australia and East Asia.