Defense group rahnam News Agency، This morning, the newest destroyer of the Navy of the Islamic Republic of Iran named “Dilman”, which was designed and produced by the specialists of the marine industry of the Ministry of Defense, joined the North Fleet and the Fourth Naval Region of Imam Reza (AS) in the Caspian Sea.
Dilman is considered the latest and in a way the most advanced product of the Moj project, which has significant advantages over the previous examples. It took 950,000 man hours for 4 years to build it. But before examining our Dillman destroyer, let’s talk about the birth process of Muj project destroyers.
With the order of the Supreme Commander-in-Chief to build a destroyer capable of carrying helicopters and missiles, the Moj project was defined with the first product called “Jamaran” and was put on the agenda.
In 1380, after the completion of the designs, the first part of the ship was built, in 1382 the bowl (the part under the deck of the overall structure) and in 1385 all the parts of the superstructure (the structure and floors on the deck) were built, and then the work of equipping it began.
The Jamaran ship was the first military vessel built in Iran after several thousand years after the naval fleet of Xhasyar Shah era, and it was built in a situation where the knowledge of military shipbuilding in the country did not exist in a modern and standardized way.
In the construction of Jamaran, all the domestic capabilities were identified throughout the country so that the unattainable parts from the outside can be built by relying on the internal capabilities. In the process of managing the Jamaran ship project, most of the academic and industrial departments that were partners in the project did not know that their work was being used to build a warship, and the independent and centralized management in the Army Navy for the wave project was summarizing and coordinating the capabilities and was responsible for turning it into a part of the final product. As a result of these activities, the knowledge of designing a warship was compiled from the stage of defining the operational needs to the tests of military and naval standards.
1,400,000 parts were used in the construction of Jamaran. 12,000 people hours of study stage, 120 academic centers and about one thousand experts, more than one hundred of whom had doctorate degrees, spent one million two hundred thousand working hours under the management of the Navy. The creation of design offices by employing senior and doctorate experts and with a local management structure employing knowledge-based companies and active universities and research institutes in the country led to the formation of the country’s largest defense project at that time. Finally, on 30 Bahman 1388, the annexation of Jamaran took place in the presence of the General Command.
The 50% improvement in the operational radius of the Jamaran ship compared to Alvand-class ships and the advantage of carrying helicopters as well as carrying air defense missile launchers were among the key aspects of Jamaran’s differences in its apparent equipment compared to them.
The “Dana” project also goes back to the same time as the Jamaran plan was finalized, and it took 13 years from the start of construction to its annexation, of which 7 years were useful. Jamaran as the first ship lasted for 12 years and was delivered in February 2018, Damavand, which was considered the second ship of the Moj project, with 8 years of work in March 2013 and Sahand, despite changes in the exterior and interior design and some different equipment, in hand for 6 years. It was built and joined the fleet in December 2017. This ship with a new design in the side bodies has a smaller radar cross-section and is discovered several times later than the Jamaran ship.
The Sahand ship with hull number 74 is also one of the products of the Army Navy’s Wave project, and after the Jamaran and Damavand ships, it is the third product of this project that has been delivered to Nadaja. This ship is 94 meters long and 11 meters wide and its weight is 1300 tons, and it can sail for 150 days with its entire crew.
In the field of weapons, Sahand uses a 76 mm Fajr 27 cannon in the chest and 4 anti-ship cruise missiles in the middle of the ship’s hull, and a “lasso” point defense system is installed in the heel of this ship to deal with attacking cruise missiles. Other weapons of this ship include two Mihrab defense missiles installed in front of the ship’s command bridge.
The radar cross-section of the “Sahand” ship has been reduced compared to the previous examples of the Moj project, and this ship also uses more advanced electronic warfare systems.
One of the reasons for the prolongation of the useful life of the Dana project is the change of subsystems from the designs of Jamaran’s time to the latest achievements and the application of experiences gained by Nadaja and the Ministry of Defense. In fact, each of the experiences gained from Jamaran’s many years of service in the near and far waters and the identified deficiencies were recorded in a scientific and technical manner, and all important matters were reviewed in the new “Dana” ship.
But after the incident of the Damavand destroyer in the Caspian Sea, the construction of a new destroyer was put on the agenda of the army navy in the northern waters.
* “Dilman”; Iran’s new soldier in the Caspian
“Dilman” destroyer is the fifth product of Moj project and has a different internal and external design than its peers. This destroyer has a length of 94 meters, a width of 11.1 meters and a water intake of 3.25 meters. On the other hand, the Dillman destroyer has a weight of 1500 tons and a speed of 26 knots.
One of the advantages of Dillman compared to its previous example is the propulsion system of this destroyer. In this destroyer, the thrust system is four-line, and in this way, Dillman uses 4 shafts and 4 propellers, while the previous Moj series destroyers used two shafts and two propellers.
In addition, Dillman uses the boat thruster system with a power of 86 KW and a variable revolution up to 1480 revolutions, and 1,400,000 parts have been used in this destroyer.
These advantages are important because the Caspian Sea is a closed sea, the deeper part of which has a stronger water current, is located on the Iranian side. For this reason, the ship should be equipped with stronger propulsion systems and better maneuverability to be able to sail well in these conditions. This system helps to dock the ship in the port and also to turn the ship at high speed. One of the reasons for the accident in the Damavand destroyer was the absence of the same system in that destroyer.
In terms of weapons, the Dillman destroyer has a 76 mm Fajr 27 cannon in the ship’s chest, 6 20 mm Oerlikon cannons in the front, back and sides of the ship, 8 Qadir and Qadir anti-ship missiles with ranges of 200 and 300 km and 6 Mark 46 torpedoes. It has been Equipped.
In addition, the Dillman destroyer is equipped with a “lasso” point defense system to deal with cruise missiles, which can fire 4,000 to 7,000 rounds per minute and can engage targets from a distance of 2 kilometers.
“Lasso” point defense system
Another important system installed on the Dillman destroyer is the Elinet Mursad system. This system is installed on the destroyer to collect and listen to the signal and gives Dillman a suitable power in the field of information. Chaf Joshan’s self-defense system to deal with radar guided missiles is also one of the other systems installed on this ship.
The orange box is the Kamand system, the red is the cruise missile, the blue is the installation of the Eagle Eye radar, the green is the Elinet Mursad system.
One of the distinguishing features of the Dillman destroyer is its integrated mast. The installation of an integrated mast provides Dillman with the possibility to use advanced 4-way phased array radars and other advanced radar and electronic systems.
The “Eagle Eye” phased array radar designed for this destroyer has 4 faces with a 90 degree coverage radius and a 360 degree array. This radar, which works in the X frequency band, has a range of 200 kilometers and with a total of 4,000 arrays (1,000 arrays each) has the ability to detect 100 targets and engage with 13 targets.
Installation location of the eagle eye radar on the integrated mast of the Dillman destroyer
Eagle eye radar has the ability to update targets in less than one second and therefore it is possible to quickly change the frequency and analyze jamming signals. This ability in the field of anti-electronic warfare provides the eagle eye with a suitable capability.
On the other hand, this radar requires less maintenance than the previous models, and the radar cross-section of its structure is much smaller than the previous radars of naval vessels.
Besides, Eagle eye radar is able to identify and track different targets such as ships, planes, helicopters, drones and cruise missiles.
In addition, with this advantage, Dillman will have the ability to install a more advanced air defense system, as it is planned to install the Nawab short-range vertical launch system and the Sayad medium-range system for this ship.
Dillman’s destroyer helicopter pad has also faced an increase in surface so that it can carry SH series helicopters. Until now, these wave-class submarines were only capable of carrying AB212 helicopters, which in this way have also acquired the ability to carry anti-submarine helicopters.
Until the middle of the 1380s, only one construction project was being implemented in the Nedaja factories in the south, and that was Jamaran, but today, at the beginning of the 1400s, several vessels with very different characteristics and even jumps in tonnage were being built, and at the same time, several heavy vessels and subsurfaces were being built. It is also under repair. This difference in the volume of activities well shows the high growth of technical and industrial activities to maintain and increase the capabilities of the Navy of the Islamic Republic of Iran.
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