IPTN is developing an amphibious version of the N219 at the moment, and Indonesia is interested in flying boats like the Beriev Be-200 or Canadair CL-415 for years.I got this 2019 study from TNI-AU site sometimes ago. Just for a reading on shown TNI-AU effort for standardizing their assets. The studies talk more on how to modified all L-100 civilian grade engine into C-130H military specs engine.
This for me shown TNI-AU technically knows well how important to standardizing and reduction of logistical foot prints. They already learn that from many studies they got from other Air Force, and Industry consultants. At the time of this study publish in 2019, the C-130 inventory in TNI-AU are 16 C-130H/HS (including ex RAAF), 7 C-130B (including one Tanker), and 4 L-100. There're 5 C-130B being upgrade to H standard, and this study talk about upgrading 3 L-100 to H standard including modified TNI-AU substantial L-100 engine block to H engine standard.
I put this on the threads just to shown, the TNI-AU multiple diversified inventory is due to Political decision from various Administration so far (especially after Soeharto). Left alone, the present TNI-AU technical teams seems know well the importance of standardize their inventory.
Perhaps this's why LM still shown some confidence that F-16V will get the order. Seems they know the support for more F-16 within TNI-AU still there. For me this's shown that if MinDef got the budget for their 'fancier' fighters. Then choose just either one of Rafale, F-15EX, or KF-21. Choose one of that, and let the backbone of TNI-AU fleet handle by F-16 family. Sell the Flankers if necessary. It's not the matters of getting deterrence factor (like many TNI brass talking), but getting efficient and effective Air Force.
Perhaps because the Transport fleet high utilisation, that TNI brass agree for the standardizing move. However why they still want to entertain this 'diversified' strategy for the Fighters fleet is beyond me.
Hopefully with the 'Finance' people now demand them to make more detail planning including life time sustainment cycle cost, more effort for standardizing can be achieve.
Whether you have commercial fleet or military fleet, the idea still the same. It's inefficient to have multiple types in your fleet. Multiple types only benefit the 'insiders' for multiple jobs they can get.
So, if the USA is planning to continue with the development of an amphibious version of the MC-130J, maybe it will be more suitable for Indonesia than a Be-200 or CL-415.
At SOFIC 2021, United States Special Operations Command’s (USSOCOM) presented the concept of an amphibious MC-130J “Commando II” special forces transport turboprop aircraft called “MAC”