IRIN Kharg (431)

Replenishment Ship

Iran | 1984

"IRIN Kharg 431 was lost to a fire in June of 2021 - the cause of the event remains unclear."

Authored By: JR Potts, AUS 173d AB | Last Edited: 06/02/2021 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

By the 1990's, the Islamic Republic of Iran made the conscious decision and effort to locally build as many of her own ships as possible, reducing their reliance on foreign suppliers. However, in the 1970's, her shipbuilding facilities were incapable of constructing large vessels which proved problematic considering the Iranian Navy managed a growing number of warships that required refueling at sea - British- and American-built destroyers and British- and Iranian-made frigates and corvettes. UK shipbuilder Swan Hunter was charged by the Iranian government to construct a replenishment ship with a displacement of 33,014 tons under the name of "Kharg" to represent a single vessel of the class. The Ol-class, an ex-Royal Navy fleet auxiliary tanker, was selected for the modification and work began in 1976. The Ol-class ships were considered "fast fleet tankers" able to keep up with modern warships and built through a class of four vessels themselves. These ships were used to provide fuel, food, ammunition and other supplies to Royal Navy vessels sailing across all seven oceans of the world - so they provided a very good, proven design for the Iranian Navy to benefit from. The vessel sported a running length of 648 feet with a beam of 84 feet and drew 34 feet of water. Her purpose, as built during 1976-1977, was as an oil tanker refueling ship. Completed in 1978, the Kharg was not delivered to Iran until 1984 - the Iranian Revolution of 1978-79 forever changed the Iranian state and reduced political and military access to the West considerably.

The IRIN Kharg was powered by 2 x Westinghouse-geared steam turbines rated at 26,870 shaft horsepower each utilizing twin boilers with a single shaft. Iran crewed the vessel with approximately 250 men including aircrews for the stationed helicopter. The vessel managed a helicopter deck built onto the stern with two enclosed hangers capable of housing one Sea King-type naval helicopter each (a third could be kept on the open helo deck). In 1993, Kharg was sent to the Iranian port of Bandar-e-Abbasback for a refit. Since the Iranian government does not publish warship information, it is believed that the refit was to add dry storage compartments within the interior of the ship. These areas could be for troops, munitions, ship stores or naval mines. The vessel was armed with self-defense-minded equipment including 1 x 76mm/62 OTO Melara cannon (Italian) and up to 4 x 23mm/80 cannons in twin-mountings (Soviet-era).

During a 2011 deployment, two Iranian vessels - a destroyer and the Kharg supply ship - sailed past the coast of Israel and docked at the port of Latakia in Syria before returning to Iran via the Red Sea. In February of 2011, the Kharg went on patrol alongside the IRIN Alvand frigate. The Iranian navy Chief Admiral Habibollah Sayari proclaimed it "a message of peace and friendship" and these ships demonstrated "the might" of Iran. However, Israel immediately put its Navy on alert. The deployment raised tensions with Israel at a dangerous time with speculation growing that air strikes were being prepared against Iran's nuclear program.

In 2012, Iran resorted to keeping her ships closer to home waters as the Shahid Qandi, a destroyer, and its supply vessel, the Kharg, passed through the Suez Canal en route to Syria in a move that continued to raise tensions with Israel. This was only the second time Iranian ships have entered the Mediterranean since the 1979 Islamic revolution. The Kharg then supported the Iranian frigate Alvand and steamed through the canal and set anchor in the principal port city of Latakia in Syria. The nature of Iran's nuclear program have led to tightening of sanctions of Iran's oil exports, prompting Iran to threaten to close the strait - the world's most important chokepoint for oil transport in the world. Russia, having a base in Tartous, has close relations with Iran and has, at every turn, opposed military action against both Iran and Syria.

As of late February 2012, Kharg was stationed in the Gulf of Oman and Gulf of Aden as a supply ship for the Iranian Navy.

Content ©MilitaryFactory.com; No Reproduction Permitted.

June 2021 - It was reported that IRIN Kharg caught fire and sank near the Iranian port of Jask. No official cause for the fire has been revealed by authorities. The loss of Kharg is the largest maritime disaster for the country to date.

Power & Performance
Those special qualities that separate one sea-going vessel design from another. Performance specifications presented assume optimal operating conditions for IRIN Kharg (431).

2 x Pametrada steam turbines with 2 x Babock & Wilcox boilers delivering 26,870 shaft horsepower to 1 x shaft.
Propulsion

21.0 kts
24.2 mph
Surface Speed

10,254 nm
11,800 miles | 18,990 km
Range

Structure
The bow-to-stern, port-to-starboard physical qualities of IRIN Kharg (431).

248
Personnel
Complement

648.0 ft
197.51 meters
O/A Length

84.1 ft
25.63 meters
Beam

34.0 ft
10.36 meters
Draught

33,773
tons
Displacement

Armament
Available supported armament and special-mission equipment featured in the design of IRIN Kharg (431).

1 x 76mm /62 caliber OTO-Melara DP (Dual-Purpose) turreted deck gun.
6 x 2 x 23mm /80 caliber Anti-Aircraft (AA) guns.
2 x Chaff decoy launchers.

Air Arm
Available supported fixed-wing / rotary-wing aircraft featured in the design of IRIN Kharg (431).

3 x Sea King-type naval helicopters serviced by two hangars; launched/retrieved via helipad.

Ships-in-Class (1)
Notable series variants as part of the IRIN Kharg (431) family line as relating to the Kharg-class group.

IRIN Kharg (431)

Operators
Global operator(s) of the IRIN Kharg (431). Nations are displayed by flag, each linked to their respective national naval warfare listing.

[ Iran ]

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to seaborne requirements.

BLUE WATER SERVICE

SHIP-TO-SHORE

Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.

Military lapel ribbon for the Cold War period

Military lapel ribbon representing modern aircraft

Going Further...
IRIN Kharg (431) Replenishment Ship appears in the following collections:

Disclaimer | Privacy Policy | Cookies

2025 Military Pay Scale Military Ranks U.S. DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols US 5-Star Generals WW2 Weapons by Country

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com. No A.I. was used in the generation of this content.

Part of a network of sites that includes Global Firepower, WDMMA.org, WDMMW.org, and World War Next.

©2024 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2024 (21yrs)