US Navy 6th Gen Fighter - F/A-XX

[Training_Dummy]

Could be anything. The Navy already pays north of $100 Million per F-35 IIRC. Part of the reason could be that they don't want to spend more money at this time. Whatever it is, they are not getting adaptive engine on the carrier deck for the forseable future. And that decision seems to have been made some years ago.

I meant examining if the specific reason USN is not using an adaptive three stream engine for F/A-XX might roughly be extended as to a notional A100/101 F-35 or derivative, but sounds like aside from the same tea leaves Josh_TN are reading, there isn’t much to point as to reasons; could be cost, tech risk, technical/operational reasons unique to US naval aviation, none or all.

 

[Scott Kenny]

The USN seems to think adaptive engines are a non starter for FAXX; I cannot imagine their view on F-35C is much different.

My understanding was that it was because of development time. USN needs planes to replace Super Bugs NOW (well, 10years from now), so isn't willing to fight needing both new engines developed out as well as new airframes.

Edit: they did that with the F-14 and got screwed with TF30 Tomcats when the F401 was cancelled.

 

[Jimmo952]

My understanding was that it was because of development time. USN needs planes to replace Super Bugs NOW (well, 10years from now), so isn't willing to fight needing both new engines developed out as well as new airframes.

Edit: they did that with the F-14 and got screwed with TF30 Tomcats when the F401 was cancelled.

I think you are right. The Navy is taking the conservative approach.