Iran's new space launch vehicle "Simorgh IRILV"
 

Norbert Brügge, Germany


Update:
13.04.2012

TEHRAN, 2010, Jan. 29 -- Iranian defense minister Ahmad Vahidi announced that the country plans to unveil a home-made engine for satellite carrier rockets within the next few days.
"Toloo and Mesbah satellites as well as
Simorgh satellite carrier engine will be unveiled in the ceremonies from February 1-11, celebrating the victory of the Islamic Revolution back in 1979," Vahidi added.

TEHRAN, 2010, Febr. 01 --
Iran will unveil five space projects at ceremonies to celebrate the victory of the Islamic Revolution of 1979, Fars news agency said.
On the third day of the festivities, Iranian authorities will hold a presentation of the Toloo satellite, the Mesbah-2 and Navid research satellites, and the engine for the new
Simorgh booster rocket.

TEHRAN, 2010, Febr. 03 -- State television carried pictures of President Mahmoud Ahmadinejad unveiling the home-built satellite rocket dubbed the "Simorgh".
The milk-bottle shaped rocket, emblazoned in blue with the words "Satellite Carrier Simorgh," is equipped to carry a 100-kilogram satellite 500 kilometres into orbit, the television report said. The launch weight of the rocket is given with 85 tonnes.

TEHRAN (FARS) -- Iran unveiled a new home-made satellite carrier. The satellite carrier named “Simorgh” utilizes a new generation of liquid-fuel engines to put satellites in orbit. The milk-bottle shaped rocket, emblazoned in blue with the words "Satellite Carrier Simorgh", is equipped to carry a 100-kilogram satellite 500 kilometers into orbit.
"The 27-meter tall multi-stage rocket weighs 85 tons and its liquid fuel propulsion system has a thrust of up to 143 tons. The rocket uses a cluster of four engines each having a thrust of 32 tons plus a control engine (*) with a thrust of 15 tons."
* meant are the second stage engines

TEHRAN (ISNA) -- At a ceremony attended by Iran’s President Mahmoud Ahmadinejad in the country’s National Day of Aerospace Technology Toloo, Mesbah 2 and Navid were unveiled. Toloo will be placed in low-earth orbit at about 500 kilometers above the Earth and will be charged by solar cells and secondary batteries. Mesbah 2 is a telecommunication satellite and Navid is made by students that sends photos to the Earth.
The new Simorgh satellite carrier could take satellites with 100 kilograms weight at the height of 500 kilometers above the Earth. Also Simorgh satellite carrier engine can put up to 700 kilograms at orbit 1,000 kilometers above the Earth.


TEHRAN, 2010, Aug. 05
-- President Mahmoud Ahmadinejad said Iran is working on a three-stage rocket to carry a satellite 1,000 kilometres into space.
"Last time, we sent a satellite to 250 kilometres... Next year it will be sent to 700 kilometres, and the year after that to 1,000 kilometres," he said.

TEHRAN, 2011, December  31
-- Iran delayed the promised long-range missile test (probably due to technical problems at a Simorgh ? missile).
Iran's state media initially had reported that long-range missile had been launched during naval exercises. But Deputy Navy Commander Mahmoud Mousavi later went on the English language Press TV channel to deny the missile had in fact been fired.

MOSCOW, 2012, January 03
-- Iran has no long-range missiles, a Russian defence official said in Moscow’s first response to a series of tests conducted by Teheran near the Strait of Hormuz.
“Iran does not have the technology to create intermediate or long-range inter-continental ballistic missiles,” defence ministry spokesman Vadim Koval told the Interfax news agency. “And it will not get such missiles any time soon,” he added. (????)

TEHRAN, 2012, Febr. 14 -- Iran will launch satellites with the Simorgh carrier from a new space port. There would be a new round of space progression in Iran by 2013. The country will launch Toloo and Fajr satellites and will improve its carriers by efforts by experts in this regard.
The Simorgh satellite carrier which is capable of carrying satellites with 100 kg to 500 km orbit, possesses 4 engines and final tests are implemented on it.
The Toloo satellite built by Iran's electronic industry affiliated with defense ministry will launched by Simorgh satellite carrier built by air and space industry of defense ministry. The Simorgh launcher also will be capable to put satellites into GTO orbits. Then thruster of satellite will put satellite into 36,000 km GEO. The satellite carrier Simorgh is built soon.


The mock-up of Iran's new space launch vehicle Simorgh IRILV
The similarity to North Korea's Unha-2 is obvious. However, the model is deliberately deformed


Simorgh thrust frame

 

   
It is suggested that the first stage of the Simorgh has a diameter of 2.00 meters.
The presented engine with the thrust frame but suggests a diameter of 2.40 m.


  

 

  Analysis

 

The presented mock-up of the Simorgh IRILV is a joke. The dimensions are not real. In reality, the rocket already exists. It is the North Korean Unha-2. It is suggested that the first stage of the Simorgh has a diameter of 2.00 meters. The second stage has a diameter of 1.25 meters. Multiplied by a factor of 1.2 would result diameters of 2.40 and 1.50 m, like as the Unha-2. The length of the tinkered first stage is correctly. The length of the tinkered second stage not corresponds to the Unha-2.

On a poster (right) are the exact dimensions of the stages written down:
Overall length: 25974 mm (not relevant because only summation of 17816 + 8158)
First stage diameter: 2.40 m
Second stage diameter: 1.50 m
First stage length: 17816 mm (meant is with adapter)
Second stage length: 8158 mm (meant is with engines)
First stage thrust: 142 tonnes (for future engines with UDMH/N2O4 fuel))
Second stage thrust: 7.2 tonnes (meant is one engine)

For driving the first stage of the Simorgh will used a cluster of four Nodong engines, like the Unha-2. For the second stage of Simorgh will used  two new small engines. The thrust of this engines is total 141 kN (vac), like the second stage of the Unha-2. The two-stage Simorgh rocket is total approximately 26.7 m long.

It is obvious that Iran producing the Simorgh SC under license of North Korea. It would be hardly possible that Iran can develop in 2-3 years a new space launch vehicle for deployment. Already in 2012 the first launch has been announced. Strange thing is that still no launch site exist. Is the rocket hidden in a silo?

 

  

My assumption
North Korea is definitely in possession of Long Range Missiles of the type Unha-2. On the parade in 2010, October 10, presented so-called "Musudan" missile is in reality an upper stage of the Unha-2. Apparently there is already an arsenal of different stages of this LRBM, but only tested separately because "long range" tests are not known. The first stage of the Unha-2 was previously shown only one time during the launch of a qualified SLV. Presumably, the launch was the first and also successful test of the 1th and 2nd stages in combination.

Iran is the beneficiary from the development of the Unha-2. Its Simorgh SC is the equivalent of the Unha-2. Either Iran is building this missile under license or buy it. Reports on the delivery of the "Musudan" (which not exist in the reality) to Iran would mean that the Unha-2 was already delivered several times in segments. Iran has thus also have a functional potential of an LRBM, but it must the acid test still exist.

 
 Iran's Medium
 + Long Range Missile arsenal

 


Cluster of four Nodong engines



Safir second stage engine (left) and probably Simorgh new second stage engine (right)

 
 
Sample calculation Simorgh SC

Stage

Engine

Thrust s.l.

Isp s.l.

Thrust vac

Isp vac

Propellant

Burn time

Flow rate

Total Imp

-

-

kN

N*s/kg

kN

N*s/kg

 

tons

s

t/s

MN*s

1

 Nodong (4) 1,137.6 2422 1,255.2 2672 UDMH/AK-27 63.41 135 0.4697 169.4
2  LRE-15  (2)     141.2 2746 UDMH/AK-27 15.43 300 0.0514 42.4

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