The Bayandor class comprises four Iranian patrol frigates originally built for the US Navy as the PF-103 class. It was named after Gholamali Bayandor. Only two are currently in service. Two were sunk in 1980 by Iraqi Exocet ASM and aerial bombs.
These corvettes were built in Texas under the MAP (Mutual Assistance Program), wherein ships were built from US Navy funding and transferred immediately upon completion to allied navies. Two half-sisters serve in the Royal Thai navy.
As delivered, they were equipped with depth charge racks and Mk6 K-Guns aft; and a Mk10 Hedgehog forward. These were removed during the Iran-Iraq War. A ZU-23 anti-aircraft gun was added in 1982; this in turn was replaced by an Oerlikon 20 mm gun in 1990.
These corvettes were built in Texas under the MAP (Mutual Assistance Program), wherein ships were built from US Navy funding and transferred immediately upon completion to allied navies. Two half-sisters serve in the Royal Thai navy.
As delivered, they were equipped with depth charge racks and Mk6 K-Guns aft; and a Mk10 Hedgehog forward. These were removed during the Iran-Iraq War. A ZU-23 anti-aircraft gun was added in 1982; this in turn was replaced by an Oerlikon 20 mm gun in 1990.