Iranian frigate Alborz
Iranian frigate Alborz, a British-made Vosper Mark V class frigate, was commissioned in 1971 as part of a four-ship order.
The ship was originally called Zaal, named after Zaal, a mythical warrior of ancient Iran and an important character in the Shahnameh. After the Islamic Revolution it was renamed Alborz, after the Alborz mountain range.History
On 1 June 1987 Alborz stopped a large bulk carrier and searched it for possible war material for Iraq. Although this was within the Iranian captain's right to do so under international law, this became known as the first search-and-seizure of the Iran–Iraq War.
In January 2010 the ship was sent to the Gulf of Aden, to help protect ships from Somali Piracy.
In April 2015, Alborz was deployed along with the supply vessel Bushehr to Yemen.
Judging by recent photographs, it underwent another modernization during which the Iranian six-barrel 30-mm Kamand anti-aircraft artillery system was installed on it with an optoelectronic system for detecting and tracking targets.
