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There's nothing to hide, believe me.Whats the unofficial budget that china is speculated to actually spend on defence? Must be atleast 300 billion.
They don't need to hide.Whats the unofficial budget that china is speculated to actually spend on defence? Must be atleast 300 billion.
Do you think WS-15 will come anywhere close to the reliability and lifespan of the F-119 engine?
It could match it's T/W ratio but no way it's reliability and lifespan.
2010s WS-10B is nowhere near the reliability or lifespan of an equivalent US engine from the 1990s.
He is not Indian, chill.Look your Kavery engine, maybe ten years later not ready, Its Arihant only comparable with Type 091.
It's possible the WS-15 will be comparable to the F119 in terms of reliability/lifespan. You are after all talking about an engine that is almost a quarter century old. As seen in the latest WS-10 variants, a lot of attention has been paid to improving the reliability of the engine ... besides increasing the TWR from 7.5 to approaching 9, a lot of effort has been put into material improvements (e.g. manufacturing quality of the single crystal and PM superalloys, blisks etc). The WS-10 already exceeded design specifications in terms of MTBO and lifespan back in 2016.Look your Kavery engine, maybe ten years later not ready, Its Arihant only comparable with Type 091.
If it's unofficial, how are we supposed to know?Whats the unofficial budget that china is speculated to actually spend on defence? Must be atleast 300 billion.
It's possible the WS-15 will be comparable to the F119 in terms of reliability/lifespan. You are after all talking about an engine that is almost a quarter century old. As seen in the latest WS-10 variants, a lot of attention has been paid to improving the reliability of the engine ... besides increasing the TWR from 7.5 to approaching 9, a lot of effort has been put into material improvements (e.g. manufacturing quality of the single crystal and PM superalloys, blisks etc). The WS-10 already exceeded design specifications in terms of MTBO and lifespan back in 2016.
If it's unofficial, how are we supposed to know?
I am curious as to why a long lifespan for WS-10B is considered by you as not realistic. Care to explain?Absolutely impossible. Period.
US engines from the 1990s are super super reliable. They can go on for maybe 8000 hours, which is as long as the lifespan of the fighter itself. To suggest that the WS-10B is anywhere near 8000 hours of lifespan is totally unrealistic.
I think that Chinese engines are probably a little bit more reliable and have a higher lifespan than Russia now but to think they are anywhere near the US even of the 1990s is pretty wishful thinking.
People forget that engine tech is just as much art as science and the Chinese will just have to learn the hard and long way how to make engines reliable and have a long lifespan.
I am curious as to why a long lifespan for WS-10B is considered by you as not realistic. Care to explain?
I am not claiming the WS-10 will be anything near the F119 in terms of reliability, even the latest variants. But I am saying the WS-15 and the WS-19 will be comparable to the F119. I don't know why this is so shocking ... the F101 engine was pretty unreliable when it first came out too (much like the initial WS-10s).Absolutely impossible. Period.
US engines from the 1990s are super super reliable. They can go on for maybe 8000 hours, which is as long as the lifespan of the fighter itself. To suggest that the WS-10B is anywhere near 8000 hours of lifespan is totally unrealistic.
I think that Chinese engines are probably a little bit more reliable and have a higher lifespan than Russia now but to think they are anywhere near the US even of the 1990s is pretty wishful thinking.
People forget that engine tech is just as much art as science and the Chinese will just have to learn the hard and long way how to make engines reliable and have a long lifespan.
Surely you came out with something better instead of defending your case with a straw man argument that is not based on facts.Lack of experience on China's part with turbofans.
US has been making turbofans since the 1960s.
I am not claiming the WS-10 will be anything near the F119 in terms of reliability, even the latest variants. But I am saying the WS-15 and the WS-19 will be comparable to the F119. I don't know why this is so shocking ... the F101 engine was pretty unreliable when it first came out too (much like the initial WS-10s).
Nothing is impossible my friend. All I can tell you is that the WS-15 was designed with reliability approaching Western engines in mind ... in contrast with the WS-10, whose reliability currently exceeds that of design requirements. Ultimately, we have no way of gauging whose reliability will be better unless both the Chinese and Americans release stats about this. The first WS-15 that comes out may not be as reliable/mature ... I'll give you that but it will mature in a much shorter timeframe than the WS-10 due to the much more stringent testing requirements applied to it (compared to the WS-10 which was rushed out of development and hence suffered a lot of issues initially).Absolutely impossible that WS-15 will be as reliable and/or have the lifespan of the F-119 that came out in 2005 when the F-22 was introduced, let alone the current engines powering F-22s.
The F-119 is a development of the prototype engine(YF-119) that solely powered the YF-22 prototype back in 1990. It is not a completely new engine like the WS-15 is and so would be more mature at introduction than the WS-15 that may so far never have solely powered a J-20 yet.
China used Rhenium in their superalloy.Nothing is impossible my friend. All I can tell you is that the WS-15 was designed with reliability approaching Western engines in mind ... in contrast with the WS-10, whose reliability currently exceeds that of design requirements. Ultimately, we have no way of gauging whose reliability will be better unless both the Chinese and Americans release stats about this. The first WS-15 that comes out may not be as reliable/mature ... I'll give you that but it will mature in a much shorter timeframe than the WS-10 due to the much more stringent testing requirements applied to it (compared to the WS-10 which was rushed out of development and hence suffered a lot of issues initially).