Dry thrust should also improve if they can get wet thrust to 16 tonnes. This relationship is mostly linear. It’s very likely that the way they’re getting these improvements is by running the engine hotter.
J-20 5th Generation Fighter VII
- Thread starter siegecrossbow
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But it is not up to the same standards as F-119 or F-135. The core of the engine is still that of a WS-10 no matter how you modify it.
The Su-57’s engines uses the same core as the AL-31 but has a dry thrust over 90 kN. Just because an engine shares the same core doesn’t mean it’s locked into the same dry thrust performance.
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Then they'd have to make compromises in service life or fuel consumption or high velocity performance (due to by-pass ratio). There is no such thing as free lunch.
As I said in my first reply post edit they’re probably looking to run the engine a lot hotter, and they’re probably able to do so because they’re swapping to more heat tolerant materials (or at least that’s the lowest hanging fruit they have). Fuel consumption at higher thrust is probably where they’re eating the penalty, which I think makes a lot of sense since they don’t need to always run on maximum performance for operations, so that penalty is only incurred when they run the engine at those higher thrusts.
Who knows. It might be good to have as an option in case the WS-15 is delayed, or it might be that they can get quick turnaround on a WS-10 variant to meaningfully cover enough batches of new J-20s to be worth the effort before switching to the WS-15.
Stop repeating Minnie Chan garbage.
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