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Class overview
Name	Tir II (IPS 18)
Operators	Iran  Syria
General characteristics
Type	Torpedo Boat
Displacement	26t standard, 28 ¼ t full
Length	69 ft 4 in (21.13 m) x 18 ft 10 in (5.74 m) x 6 ft 9 in (2.06 m)
Beam	18 ft 10 in (5.74 m)
Height	6 ft 9 in (2.06 m)
Installed power	3 1200hp diesels (type unknown), 3 DIO waterjets
Propulsion	2 shafts
Speed	52 kn
Range	450 nmi (830 km) @ 25 knots
Complement	6
Sensors and processing systems	I-band navigation radar
Armament	x4 (2 twin mounts) 12.7 mm x2 21 inch torpedo tubes (compatible with either Chinese, North Korean, or Iranian torpedoes) x1 Dooshka 12.7 mm MG

The Tir II (IPS 18) is an Iranian built small fast attack craft torpedo boat featuring a low, flush hull to reduce its radar cross-section. The radar is set on a retractable mast, with fixed 21" tubes inside the superstructure. Engines exhaust at the waterline to reduce its IR signature. Built by Iranian Maritime Industries (a subsidiary of the state-owned DIO company), the Bavar-class missile-armed boats are being acquired to replace the Tir-IIs.

Ten units are in service, believed to be manned by the IRGCN, not the regular Iranian navy. In late 2006/early 2007 six of the sixteen vessels built were transferred to the Syrian Navy.

References

1. "Harpoon Database". Archived from the original on May 11, 2012. Retrieved August 18, 2014.

v t e Ship classes of the Navy of the Islamic Revolutionary Guard Corps
Coastal warfare vessels	PTGF Tondar class
Patrol vessels	PB Ghaem class Pashe class Heidar class PBFT Peykaap I class Kajami class Gahjae class Tarlan class PBFG Azarakhsh class Peykaap II class Peykaap III class MK13 class PBF Ashura class Taregh class Zafar class RIB class Cougar class Seraj class MIL 55 class MIL 40 class Kashdom class Murce class Tir class
Amphibious warfare vessels	LSL Hormuz 21 class LST Hormuz 24 class
Auxiliary ships	AP Nasser class HARTH Shahid Nazeri class Shahid Soleimani class
List of equipment of the Navy of the Islamic Revolutionary Guard Corps

• Fast patrol boat classes of the Navy of the Islamic Revolutionary Guard Corps
• Naval ships of Syria
• Ships built by Marine Industries Organization
• Iran–Syria military relations