'two-winged', named after Zuljanah; also known as Peykaap I or IPS-16) is a class of fast torpedo boat operated by the Navy of the Islamic Revolutionary Guard Corps.

It is described a stealth craft whose unusual armament suggests a "ship-disabling role".

[1] It uses one surface piercing propeller, powered by two diesel engines.

[1] This system was designed to provide 2,400 horsepower (1.8 MW) for a top speed of 52 knots (96 km/h).

[1] Zoljenah-class boats are equipped with a 12.7mm machine guns,[1] but their primary armament is two single 324mm torpedo tubes.