Kosar / Nasr
On 4 January 2011, VOA reported that Iran's parliament speaker, Ali Larijani, said his country planbed to further boost its missile program. Larijani's comments came as Iran's Defense Ministry said it had armed its navy with new coastal cruise missile systems, such as the Kosar and Nasr. Iranian Defense Minister Brigadier General Ahmad Vahidi said at a ceremony on 3 January 2011 that the new missile systems would help safeguard the country's naval borders.
Ministry of Defense and Armed Forces Logistics (MODAFL) spokesman Mohammad Reza Imani told the Associated Press on 1 June 2004, that Iran was building its first stealth missile, a rocket that could evade radar detection, although he did not give a range. Parts of the missile, known as Kosar (also written Kowsar, the name of the river in paradise), were on show at a Tehran fair showing MODAFL products to government officials. The missile, designed "for defensive purposes" and comparable to a cruise missile, was built by MODAFL's Aerospace Industries Organization. It was said to be capable of being launched against ships from land, ship, or air and was designed with the geography of the Persian Gulf and the Oman Sea in mind. The missile was said to be able to sink "small and medium-sized naval vessels" should it strike them.
This missile should not be confused with the Shahab-6 ballistic missile, which had also been referred to with the name Kosar/Kowsar. Subequent pictures released of the Kosar anti-ship missile showed it to be visually similar to the Chinese C-701 and TL-10 series of anti-ship missiles, which Iran recieved some number of during 2002. These missiles had been included as part of a sale involving C-14 type fast attack missile boats (also referredt to as China Cats). Kosar missiles had been reported to have been fitted to Iranian Peykaap II missile boats as well. It was test fired from these craft during exercises in 2006. During the same exercises a shore based, truck mounted variant was also tested.
These missiles were the product of co-operation between Iran Aerospace Industries, and the Chinese aerospace industry. The Cruise Systems Industry Group, Hongdu Aviation Industry Group (HAIG), CASIC and CPMIEC were believed to have assisted with the development of the Iranian Kosar and Nasr short range anti-ship missiles. Kosar was similar to the Chinese C-701, and both Kosar and C-701 were first displayed in 1998. Kosar appeared to be similar to the Chinese TL-10/JJ-10 air- and surface-launched missiles, and these differ from C-701 only in the wing shape.
There were at least 2 versions of the Kosar (derived from the Chinese C-701/TL-10), one with a TV seeker head (TV) and the other with an active radar seeker, with inertial guidance in the mid-course phase. The Chinese missiles were believed to have alternate designators, using TL-10A for the TV seeker version, and TL-10B for the active radar seeker (believed to be likely a Ka band, 35 GHz). One report suggested that a semi-active laser (SAL) version had also been developed in Iran. The Kosar had a length of 2.51 meters (TV) or 2.69 meters (R), a diameter of 0.18 meters, and a launch weight of 105 kilograms (TV) or 117 kilograms (R). The Kosar had a 29 kilogram HE/SAP warhead, a minimum range of 3 kilometers and a maximum range of 18 kilometers. The 3 exit nozzles of the solid propellant motor indicated a dual-mode boost and sustainer operation. The maximum cruise speed was believed to be Mach 0.8. The missiles were stored and launched from a square box section canister, with 2 canisters mounted on a rotating launch assembly on a wheeled 4x4 truck.
It was believed that the C-701 entered service in China in 1999, and that Kosar entered service in Iran in 2005. It was believed that the earlier Kosar missiles were assembled and tested in Iran, from Chinese supplied sub-assemblies. Kosar missiles were reported fitted to IPS-16 Modified Peykaap II patrol craft in 2008, with 2 missile canisters located in the stern of the craft. It was believed that the Parvin patrol craft may have been fitted with 2 Kosar missile canisters, and that the IPS-18 Tir patrol craft might also have been fitted with 2 canisters, but neither of these had been confirmed by January 2011. It was also possible that some Kosar missiles were ground-launched, and that some might be air-launched.
The Nasr, appeared to be a scaled-up version of Kosar, and was similar to the Chinese C-704 (TL-6/JJ-6) air- and surface-launched missiles. The length was believed to be 3.28 meters, body diameter 0.28 meters, and launch weight 350 kilograms. It was believed that there were at least 2 versions of the Nasr (C-704) missile in Iran. The first version had been called Nasr 1, and this started production in Iran in April 2010, with the final assembly and test of Chinese supplied sub-assemblies. An unconfirmed report stated that the solid propellant motors were made in Iran. A second version, known as Nasr 2 was believed to be in development in Iran. Iran was also believed to have received some C-704KD air-launched missiles from China, but it was not known if these missiles were fitted to fixed wing aircraft or helicopters.
The Nasr missiles were believed to have inertial guidance in the mid-course phase. Active radar, TV and IIR seeker versions had been displayed in China, and all 3 versions were assumed to have been sold to Iran. Nasr missiles were fitted with a 130 kg HE/SAP warhead. Solid propellant boost and sustainer motors were fitted, and the surface-to-surface missile had a minimum range of 5 kilometers and a maximum range of 27 kilometers. The air-launched version wes believed to have a maximum range of 35 kilometers.
A TL-6 missile model had been seen fitted to a Chinese F-811M fighter, and it was believed that C-704 entered service in China in 2006. A coastal defence missile was flight tested in Iran in April 2006, with a range of 30 kilometers, and this could have been Nasr 1. A test of a Nasr 2 missile was reported by Iran in December 2008, launched from a ship against a target at a range of 30 kilometers. This was the first reference in Iran to a Nasr 2 version. It was believed that Chinese supplied C-704 missile systems could have entered service in Iran in 2008, but the Iranian built Nasr 1 production did not start until 2010.
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