'Sling') is a Kaman-class fast attack craft in the Southern Fleet of the Islamic Republic of Iran Navy.

Falakhon was built by French Constructions Mécaniques de Normandie at Cherbourg, as one of the first six contracted on 19 February 1974.

[3] She was part of the naval group –together with Khanjar (P230), Hendijan (1401), Deylam (424) and Ghadir (953)– that arrived at Karachi on 2 May 2014 for a five-day joint exercise with Pakistan Navy,[4] and returned home on 14 May 2014.

[5] From 8 to 15 April 2017, along with Sabalan (73) and Lavan (514), she participated in a join naval drill with the Royal Navy of Oman.

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