Kaivan-class patrol craft

The Kaivan () is a class of large patrol craft operated by the Islamic Republic of Iran Navy. They ships in the class are modified versions of the American "Cape"-class vessels, built by the United States Coast Guard Yard in the 1950s.
Design.
Sources cite displacement of "Kaivan" class vessels slightly different. According to "Jane's Fighting Ships", the ships have a standard displacement of and at full load. "Conway's All the World's Fighting Ships" puts the numbers at and for standard and full load displacements respectively. "Combat Fleets of the World" mentions only . The class design is long, would have a beam of and a draft of . The length is also recorded .
Ships in the class.
The ships in the class are: 