Indonesia-Korea Jet Fighter Joint Production Plan

June 19, 2010

Planned cooperation between Indonesia and South Korea to start a joint project on jet fighter production received strong support from a lawmaker and researcher here on Friday but they warned that it will need to undergo feasibility studies.

“The joint cooperation is good for Indonesia because it will help us revitalize our defense industry.

However it is strongly recommended both countries conduct thorough feasibility study,” Kemal Azis Stamboel, lawmaker from the House of Representatives Commission I overseeing defense and intelligence told The Jakarta Post on Friday.

Kemal added that among points to be looked into in the study would be an assessment of possible future conflict between the two countries.

“This policy applies for all potential partner countries because of course we don’t want to be caught out if it occurs,” he added.

Initiated during a visit to Indonesia by South Korean President Lee Myung-bak last year, both countries are now gearing up to sign a Memorandum of Understanding (MoU) for the fighter production, which will be called “KFX project”.

According to secretary-general of the Defense Ministry Deputy Marshal Eris Haryanto, the MoU is likely to be signed at the end of this year. After the signing, a joint team comprising experts from both countries will be formed.

This team would be tasked with building five prototypes of the aircraft before 2020. After achieving the break even point target of 200 units, the aircraft will be ready for mass production.

Military expert from the Indonesian Institute of Sciences Jaleswari Pramodhawardani said the project offers Indonesia a rare chance to develop its defense industry.

“There is always a risk in everything but in my opinion we should take this risk,” she said.

However, she said the project would cost a huge part of the budget, meaning the Indonesian Military may have to work hard to convince lawmakers to grant funding.

Under the MoU, Indonesia will shoulder 20 percent of the initial budget of US$8 billion, which Kemal described as “reasonable”.

The joint project is widely seen as a pilot project for Indonesian military in revitalizing defense industry. The Indonesian military is now perfecting an draft paper on boosting the country’s defense industry.


Indonesian Aerospace Company (PT Dirgantara Indonesia), July 2009

July 11, 2009

Source: antara, wikipedia, antara,, etc.

A Brief Introduction of PT Dirgantara Indonesia

Indonesian Aerospace (IAe) (Indonesian: PT. Dirgantara Indonesia (DI)) is an Indonesian aerospace company in Asia with core competence in aircraft design, development and manufacturing of civilian and military regional commuter aircraft. The company was formerly known as Industri Pesawat Terbang Nusantara (IPTN) or Industri Pesawat Terbang Nurtanio (IPTN).

Established in 1976 as a state owned company, it has developed its capability as aircraft manufacturer and diversified its product not only in the field of aircraft but also other area such as Telecommunication, Automotive, Maritime, Information Technology, Oil & Gas, Control & Automation, Military, Simulation Technology, Industrial Turbine, and Engineering Services.

DI until now has produced aircraft such as CN-235-220 as many as 250 units, NC 212-200 102 units, Super Puma helicopter NAS 332 19 units, NBELL 412 helicopter 31 units and NBO 105 helicopter as many as 122 units.

Meanwhile, current activities are manufacturing one CN-235 MPA for South Korea (delivery in 2010), one NC 212-400 EADS-CASA licensed that ordered by PT Airfast (2010), one N19 prototype that designed by DI (2013) and one amphibious aircraft under Donier Seawings’s license (2013).


1. Fixed wing aircraft
Some Fixed-wing aircraft Aircraft made by IAe:
* CN-235 Civil, Military, and Maritime Version (Joint Development with CASA).
* NC 212, a licensed production of CASA C.212 Aviocar aircraft.
* N 250 A prototype commercial turboprop aircraft, discontinued due to Asian financial crisis, the first prototype flew 55 minutes on August 10, 1995.
* N 2130 Planned commercial jet aircraft, discontinued due to Asian financial crisis before making prototype.







2. Rotary wing aircraft
Some Helicopter Aircraft made by IAe:
* NAS 330J, a licensed production of Aérospatiale Puma helicopter.
* NAS 332, a licensed production of Eurocopter Super Puma helicopter.
* NBell 412,a licensed production of Bell 412 helicopter.
* NBO 105,a licensed production of Bölkow BO 105 helicopter.




3. Aircraft component
Some subcontracts had been received by IAe:
* Component of Airbus A330.
* Component of Airbus A340.
* Wing Component of Airbus A380.
* Component of Boeing 737.
* Component of Boeing 757.
* Component of Boeing 767.
* Component of F-16 Fighting Falcon.
* Component of Fokker F100.

4. Armaments
* FFAR 2.75 inch rocket under Belgium’s license.
* SUT-Torpedo, under Germany’s license.
* NDL-40 Ground-to-Ground Rocket Multi Launcher.


The CASA/IPTN CN-235 is a medium-range twin-turbo-prop aircraft developed jointly between CASA in Spain and IPTN in Indonesia (now PT Dirgantara Indonesia) as a regional airliner and military transport. Amongst its military roles are maritime patrol, surveillance and troop transport. The largest user is Turkey which has a total of 61 aircraft (with most production were done in their home company). The project was a joint venture between CASA and Indonesian manufacturer IPTN, which formed Airtech company to manage the program. Responsibility for design and production was shared at 50% between the two companies. The partnership applied only to the Series 10 and Series 100/110, with later versions being developed independently.





Design began in January 1980 with first flight on 11 November 1983. Spanish and Indonesian certification was on 20 June 1986; the first flight of the production aircraft was on 19 August 1986 and FAA type approval was granted on 3 December 1986. The aircraft entered service on 1 March 1988. Over 230 of all versions of CN-235 are in service and have accumulated more than 500,000 flight hours. It is the best aircraft in the world in its class.

One of the variant of CN-235 is for maritime surveillance purposes. The CN-235 maritime patrol aircraft has been developed in two versions with different avionics systems: the CN-235MP Persuader developed in Spain by CASA EADS and the CN-235MPA developed in Indonesia by DI. The maritime patrol variant is in service with: Spain, Ireland and Turkey (manufactured by EADS CASA) and Indonesia, Brunei and UAE (manufactured by DI).

The aircraft has design of conventional semi-monocoque design and mainly aluminum alloy construction. Composite materials, Kevlar and glass fiber have been used extensively in the construction of the wing and tail leading and trailing edges, engine nacelles and the nose radome.

The two manufacturers, CASA EADS in Spain and DI in Indonesia, supply the aircraft with different mission systems. The Spanish developed CN-235 MP Persuader is fitted with the Northrop Grumman APS-504 (V) 5 radar. The Indonesian developed CN-235 MPA is equipped with the Seaspray 4000 from BAE Systems, the AN/APS-134 from Raytheon or the Ocean Master 100 from Thales.

Joint Development on Jet Fighter Production with South Korea

Through Indonesian Defense Office, Ambassador of Republic of South Korea to Republic of Indonesia incorporating with last visit of South Korea President to Indonesia on March 6, 2009 ago, stated again that as growing tight relationship between both countries, Korea invites Indonesia for co-production of jet fighter that started with determining the road map of this cooperation. For this offer, Defense Office of Indonesia must first coordinate with Bapennas (National Planning Body), Finance Ministry, Defense Office and Indonesian Armed Forces Headquarter Office for that plan. Current information up to now, the joint study has come to stage of visibility study in July 2009. After that, there will be design phase for 3 years and followed with development phase for 7 years. “If smooth, in 2020 the co-production between both countries can create 5 prototypes”, said Defense Minister of Indonesia during a meeting with South Korean Ambassador on July 9, 2009.

CN-235 Anti Submarine Version

PT Dirgantara Indonesia (DI) will develop CN-235 for Anti-Submarine version as the newest version form that turboprop aircraft.

“The technology and expertise have been possessed by DI. We have long experience to assemble and modify that type of aircraft”, said Aircraft Integration Director of DI, Budi Wuraskito in Bandung, Saturday, July 11, 2009. Particularly for antisubmarine version modification plan, so far around 40 staffs of DI involved in manufacturing and modification anti submarine aircraft in Turkey. This type of aircraft is equipped with armament like missile to destroy submarine ship.

“They came back from Turkey four months ago to finish anti submarine aircraft making, so the technology has been acquired”, said Budi.

Some countries has expressed their interest and want to buy CN-235 anti submarine version, one of them is Malaysia that expressed by Malaysian Defense office during their Defense Minister visit to Indonesia two weeks ago. Malaysia now has 8 units of CN-235 with two of them are VIP carriers and the remaining are military transporter. Malaysia has interest to buy more other 6 (six) CN-235 with anti submarine capability which equipped with torpedo. And with US$ 45 M/unit, the commercial deal should be realized since the technology is not a problem for DI. Malaysia is one of several countries that operating CN-235 from Indonesia besides South Korea, UAE, and any other countries.

Surface and Underwater Target (SUT) Torpedo

The SUT (Surface and Underwater Target) torpedo is the latest and most versatile member of the Seal, Seeschlange and SST 4 family of torpedoes of Germany product. It is a dual-purpose wire-guided torpedo for engaging both surface and submarine targets. The SUT can be launched from submarines and surface vessels, from fixed locations or mobile shore stations. Its electrical propulsion permits variable speed in accordance with tactical requirements, silent running and wakelessness. The wire guidance gives immunity to interference with a two-way datalink between vessel and torpedo. The acoustic homing head has long acquisition ranges and a wide search sector for active and passive operation. After termination of guidance wire, SUT continues operation as a highly intelligent homing torpedo, with internal guidance programs for target search, target loss and so on. The large payload with combined fuse systems ensures the optimum effect of explosive power. The SUT operates at great depths as well as in very shallow waters. Consort operation permits exploitation of the full over-the-horizon range of the SUT. The body is made of plastic or aluminum. SUT at present exists in three different versions with slight differences in the internal guidance programs and the extent of data transferred via the guidance wire. The latest version is SUT Mod 2 with its special feature of additional data from the homing head being signaled back to the vessel including an “Audio Channel”.

Specification: 6,150 mm long (6,620 mm with guidance wire casket), diameter: 533 mm, weight: 1,420 kg (without casket), warhead: 260 kg, speed: selectable, max 35 knots, range: 28 km at 23 knots or 12 km at 35 knots, fuse: magnetic proximity and impact.

In service and in production for several navies (NATO – Greece; South America – Chile, Colombia, Ecuador; Asia – India, Indonesia, South Korea, Pakistan, Taiwan). In the early 1980s Indonesia signed a contract for indigenous manufacture of the SUT within a long-term program that still running.

torpedo sut i ok


One Step to LAPAN Satellite Launch Vehicle Realization

July 7, 2009

Source: Kompas Newspaper

RX-420 rocket with diameter 420 mm and length 6.2 m was the biggest rocket that successfully launched into space by Indonesian LAPAN in last 10 years.  With weight 300 kgs, RX-420 flew until 101 kms ground to ground with vertical height 53 kms and speed up to 4.4 machs. This successful launch is a key step to satellite launch vehicle (SLV) that scheduled by LAPAN to be launched in 2014. In that configuration, RX-420 rocket is the main component of LAPAN SLV.



lapan SLV

To transport a satellite in orbital position with height 300 kms, the SLV is designed to be consisted of four-stage propulsion, started with RX-420 (3 units) in the bottommost position as booster, two RX-420 rockets in the second stage and third stage and RX-320 rocket as the latest stage at the top position. This design has length 9,496 mm with total weight is 3.8 tons. One RX-420 rocket weighs around 2 tons with cruise distance 120 kms. With the current SLV configuration, the vertical launch distance may reach 300 kms. This SLV will carry 50 kgs load until the orbital position at height 250 kms. Horizontal speed of the rocket is planned to be around 7-8 kms/sec.

Evaluating the last week launching experiment of RX-420 rocket, LAPAN’s chairman Adi Sadewo Salatun said that LAPAN still requires an improvement or correction particularly at fin, nozzle and propellant components. “The homework has to be finished is to enhance octane value or impulse specific (Isp) from 230 to 300,” he said. For that objective, LAPAN will select finer grain size of ammonium perchlorate (AP) as rocket solid fuel. Currently besides using AP, LAPAN uses aluminum, HTPB (Hidroxy Terminated Polybutadiene) and TDI (Toluena Diisocyanate). As comparison, Chinese uses 9 (nine) combination of material for their SLV solid fuel.

An increased thrust power of the rocket by means of improving Isp can be provided by combining the solid fuel ingredients from four to seven types of material (a combination of solid ingredients, oxidators and additives). For propellant requirement, the factory of AP will increase its production from 2 tons/year to be 10 tons/year.

A correction also will be performed at the nozzle part as ports or conduit of gas exhaust. According to Head of RX-420 Engineering, Lilis Maryani, the nozzles component of that rocket will be reduced its weight about 40% less. Presently, its weight is 90 kgs with graphite block material.

A ratio between structure and propellant weight now is still 50:50. It will be modified to more ideal ratio by reducing the structure weight 200 kgs  less to boost additional rocket speed 3 kms/sec for higher/longer cruise distance. Presently, manufacturing of nozzles were done by milling technique. “To reduce the weight as an improvement, nozzles will be made by casting method through cooperation with state owned steel manufacturer, Krakatau Steel (KS),” Adi added. Cast nozzles will be made from steel and aluminum alloy. Future static test will be performed in December 2009 and next rocket launch test is scheduled in 2010, that is two-stage RX-420 rocket for motor test. The distance (ground to ground) is expected increases from 100 kms to 150 kms. Referring to that configuration, Head of SLV Engineering, Rika Andiarti, said that next year LAPAN will start developing inter-rocket separation system and nozzles at height 20 kms atmosphere condition while second stage motor is ignited.

Adi said,” Another issue is cracked rocket fins problem from the latest experiment due to major influence of localized aerodynamics heating in velocity 4.4 machs or 1.2 kms/sec”. Lilis added,” It will be corrected by adding heat insulator”.

Four-stage configuration of RX-420 and RX-320 which is adopted so far by LAPAN for their SLV still has a disadvantages especially on strap on booster rockets. “If this configuration is not working, we will choose an alternative configuration of combined RX-520 and RX-420 to reduce the structure weight and to increase the rocket speed”, said Adi.

For the rocket payload, Head of LAPAN Payload Engineering, Herma Yudhi Irwanto, said that for future experiment LAPAN will develop vibration dampener for rocket payload, including satellite. In this issue, satellite test engine has been built using LAPAN A1 and A2 satellite technology. The latest info gathered from LAPAN, they will make mobile vehicle as launching truck for other location alternatives, instead of current Pameungpek location, such as in Ujung Kulon-West Java Province and Southern Beach of Bengkulu Province (Sumatera Island). For this year, LAPAN gets additional budget from Rp 30B (US$ 3M) to Rp 50B (US$ 5M) for RX-420 development and RX-520 research.