Indos
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First off, thanks again for detailed information from Indonesia that is hard to get as a non-Indonesian. It surely enables me to consider these matters from other perspective.
Talking about the technical involvement of Indonesian engineers, my source - and presumably other Koreans citing such information in other websites - are from multiple KAI and ADD insiders. What we are being told is that the team of Indonesian engineers are working almost completely separate from the Korean-LM TAC design team and are assigned to specific calculations and problem solving for limited field of research, which I suspect are structural and subsonic aerodynamics analysis.
Then again here you are giving a way more detailed and credible sources, so there is a noticeable amount of possibility of myself standing corrected and in fact Indonesian engineers could be contributing for wider field of engineering such as aircraft production or system integration.
Still there are questions to be asked. Yes, Indonesia does have a longer history of designing and producing an aircraft domestically but it was not a high-agility supersonic aircraft that Indonesia was busy with. Arguably Korea would eventually have more experience regarding such. You yourself are mentioning that there was a discontinuation of generational transition of expertise during the 2000s, which I presume would be able to be traced back to the Asian financial crisis in the late 90s.
So Korea has more experience in designing a high maneuverability, supersonic aircraft with weapons and sensory system integration. The MC, FCC, NDI flight model and most of the other flight control and system integration electronics are a continuation from the experience gained from the KT-X program that has been developed and are being developed by the Korean engineers with some help from LM. On top of that there was no discontinuation of knowledge or know-how on the Korean side of things.
I really can't think of much when it comes to asking the question of what Indonesian engineers could be contributing more on when such a large part of KF-X program are either a continuation from the technologies developed from the KT-X program or based on the technologies gained through ToT during the F-X program.
Overall this is exactly that kind of topic where we would not be given any clear cut answers unless Indonesia do exit the program. Most of the technology involved are highly confidential thus the working environment and the people in the program are not those who are easy to reach and are under control of the controlling bodies. All we are getting are those interviews that are mostly unilateral and focused on either the Indonesian side of matters or the Korean side of matters which makes it impossible for us to judge solely based on these sources.
Such as
What should this technology even be? How significant is this technology in the first place? "Korea not taking Indonesia lightly" is the perspective of the Indonesian themselves which hardly tells much about what the Korean engineers actually think.
Other example would be
Here the Indonesian involvement during the design definition phase is mentioned as an important contribution in the program but importance of this contribution aside, it unfortunately doesn't tell much about the technological aspects of the of the Indonesian involvement but has more to do with how Indonesia is a partner of the program. As partner of the KF-X/IF-X program Indonesia obviously and rightfully could require and demand certain designs of the aircraft to suit its needs. The mass of the aircraft could be just one of those as Indonesia would obviously want a bigger internal fuel tank which is integral to aircraft mass.
All in all reading all your sources, it seems likely that what you are suggesting and mentioning are true, that there are in fact senior Indonesian engineers who are providing more input than what Koreans originally anticipated. On the flipside I am still considering what I have read from the KAI insiders at least partially true if not mostly true and will at least retain part of my doubts considering the Indonesian involvement.
Last but not least, mechanical design is just one part of the fundamentals of a fighter jet. We all know and you are already mentioning yourself that the other fundamental part of a fighter jet, which arguably has become even more important than the mechanical design of the fuselage itself, most of if not all the avionics, are either solely being developed by the Korean engineers, with or without foreign assistance or just procured straight away from foreign suppliers. Having close to zero contribution on these side of developments speaks a lot.
So that is my take regarding the technical contribution of Indonesian engineers in the KF-X/IF-X program.
Back to the topic of renegotiation, I still stand firm on what I have written in the previous post.
Your welcome mate, I also learn a lot from your knowledge.
Yup during the year of 2000-2005 we were getting trouble since IMF force us to shutdown N 2130 and N 250 program and stop providing fund to Indonesia Aerospace that let many engineers left the companies because there were massive lay off going on. In the past there were about 10.000 people working in Indonesian Aerospace (Dirgantara Indonesia) but currently we only have around 4000 people. https://en.wikipedia.org/wiki/Indonesian_Aerospace
I believe there is still a continuation of knowledge and experiences as many senior engineers are still working for Dirgantara Indonesia where the example is Heri Yansah as KFX/IFX project manager for Indonesian side who has been working in Dirgantara Indonesia since 1987. Some very senior ex engineers I believe go to universities like Dr Rais Zain, M. Eng, KFX/IFX configuration design leader. From the title that he has it is clear that he leads the configuration design on the program and not really surprising if we see his academic title and probably he was former Dirgantara Indonesia engineers as well.
It is why N 219 project is very essential for Indonesia Aerospace since it becomes the source of regeneration where very senior engineers transfer their knowledge and experience to the fresh graduates engineers during that time. I read the story from Dirgantara Indonesia engineers where at that time every 1 senior engineer is accompanied with 4 junior engineers during the design process.
I also have said that some ex-engineers who have worked in Boeing and others are also called for KFX/IFX program but I dont remember where I get the information but I will try to give the link if I can find it. And I believe it is not difficult to call ex Indonesian aerospace engineers working abroad to work for KFX/IFX program due to the salary I believe is quite comparable to their previous work and there is also a sense of nationalism and maybe religious reason (some sorth of Jihad) to contribute for this very interesting program.
Actually there is a good news that I read recently from Dirgantara official saying that many ex Dirgantara Indonesia (DI) Engineers working outside (around 200 engineers) have already come back and currently work for the company. As I said in other post previously that Indonesian tend to come back to their country and this is why few Indonesian become immigrant in other country. Their come back IMO is also become the other reason of why N 245 project is now taken more seriously.
DI official said that as soon as N 219 get type certificate, they will start N 245 program. If it is really indeed realized so it could be the next transfer of knowledge and experience process after N 219 project, particularly to gain the knowledge and experience from those ex DI engineers previously working abroad for 15-20 years.
For your information, Indonesia is currently working for our aerospace industry road map for 2020-2045 time frame. So there is grand design that we try to make. I wonder though whether jet fighter development will still be part of it. It will then IMO depend on the fate of KFX/IFX program renegotiation.
There is chance IMO that Indonesia and Korea will once again cooperate for jet fighter/drone development in the future if we some how can solve our differences in current KFX/IFX program. Let say for drone is 2035 and for 6 generation fighter jet in 2040 (in the assumption that manned fighter jet is still needed).
If that is true, considering to Indonesia projected economic power at that time, I believe it would possibly be 50:50 scheme. Indonesia will also be very interested on the program if Korea can successfully produce their own engine for that potential future project. It is because many of Indonesian are very worry about the western input since we have a history of US and British weapon embargo. So I would like to ask you this question, do you think in the period of 2035 Korean can produce competitive indigenous drone engine and 2040 for competitive jet engine for fighter jet ?
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