The Korean Golden Eagle is more or less indigenous, but primarily a trainer; calling it a front line fighter is a stretch.
The light fighter versions (F/A-50) have actually got considerable combat capability:
-ELTA EL/M-2032 fire control radar (ealier versions had APG67 as designed for F-20 Tigershark). AESA radars are also on offer.
- fly by wire
- M61 Vulcan 20mm cannon
- AAM capability including AIM-120 AMRAAM
- guided weapons capability including AGM-65 Maverick and JDAM.
Bare in mind it's designed to replace F-5E/F Tiger IIs as well as perform LIFT duties.
Also it's not a true Korean product – Lockheed Martin had consdierable involvemment.
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As for manufacturers of supersonic multirole jets:
Full Design Spectrum
USA
Russia
China (J-10 (Israeli assistance), JH-7, J-20, J-21/31).
France
Sweden (even though a lot of components are US)
India (kind of – LCA Tejas is a disaster – decades late and full production version not available until 2020, assuming HAL and government incompetence don't delay it even further).
Collaboration
Germany
UK
Spain
Italy
Taiwan (they did manufacture F-CK-1)
Japan (F-2)
South Korea (FA-50)
India – Pak Fa T-50 (FGFA) derivative though recent allegations have been that Indians aren't inputting much into design of aircraft.
Licence Production
China (Flanker derivatives J-11, J-15, J-16)
India (Su-30MKI, maybe Rafale)
Turkey (F-16)
South Korea (F-16)
Pakistan (JF-17) – presented as joint Indo-Pakistani jet but in reality designed in China and made in Pakistan.
Belgium, Netherlands, Egypt, Australia Canada, Spain used to do licence manufacture in past (F-104, F-16, F-5, Mirage III, F-86 as well as J-6) but these capabilities seem to have gone over the years.
Japan, Turkey and South Korea do want to develop their own indigenous jets.
HOWEVER
1. All 3 have opted for F-35. Whether they can sustain F-35 deliveries whilst developing their own jet is questionable.
2. At least Turkey and South Korea will need considerable foreign input. Turkey is looking for a partner already and SAAB has been mooted.
3. Turkey is not doing so well economically.
4. Japan's aircraft procurement in recent years has had a dismal run in recent years. Planned acquisition runs of dozens of aircraft have often only resulted in a dozen being procured (e.g. AH-64, F-15 upgrade) and often with massive delays (e.g. C-2 transport and P-1 patrol aircraft).
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My prediction for 2025:
Full Design Spectrum
USA – F-35 and that's it! F-15/-16/-18 will all be out of production by 2020 under current plans.
Russia – Flanker derivatives (Su-30/-32/-35) and Pak Fa T-50
China – J-20, J-21/31. I suspect JF-17 will be out of production unless export orders pick up. Also J-10 and JH-7 to production to cease.
Sweden – JAS-39E
India – continuing to hobble along with Tejas. Maybe some money being pumped into AMCA which is currently stalled.
Japan – F-3 – given recent Japanese history produced in dribs and drabs with no economies of scale.
Rafale does not look like surviving in production up to then and French have not been investing in designing a new jet.
Collaboration
India – Pak Fa if they can sort out out program management issues with Russians.
Turkey – 5th generation jet in cooperation with someone else.
South Korea – 5th generation jet in cooperation with someone else.
Eurofighter is not expected to be in production post 2020 unless export orders pick up.
Licence production
India (possibly still Su-30MKI but also maybe Rafale and PAK FA T-50).
Brazil – maybe JAS-39E (36 order but requirement is 100+).
Western world – F-35 component manufacture.
Pakistan – quite possibly still chugging along with JF-17 – they have a lot of Mirage III/V and J-7 (MiG-21 knockoffs) to replace.
The F-35 effect
The most damaging impact of the F-35 is to remove virtually all competition in the West.
Obviously US is reduced to 1 fighter manufacturer (Lockheed Martin) especially as Boeing will be out of game by 2020 by all forecasts.
Eurofighter/Rafale have proven to be unable to compete with F-35 in export markets. Due to lower demands the parent countries aren't procuring as many either or adopting proposed upgrade packages.
Hence no economies of scale and no real competitiveness.
And 2 out of 4 Eurofighter countries also have their finger in the F-35 pie (Italy and UK).
The Swedish JAS-39E Gripen survives as it's managing to get orders to keep it chugging along. Even upgraded it's considerably cheaper to acquire and operate than a lot of other fighter aircraft.