Chinese Engine Development

LesAdieux said:

I think you got a translation problem, it didn't say the ws-15 would finish flight testing in 2014, it said the "验证机“ of the ws-15 would finish its test. "验证机“(I don't know the english word for it), is not even a prototype, before you build a prototype, you build a "验证机“ to test the basic design concept.

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t2contra said:

I'm not as technically inclined as you guys are, so forgive me if I'm wrong, but the European Commission defines a demonstrator as more advanced than a prototype,

"A prototype is intended as a man-made object which shows the scientific and technical feasibility of a concept. A demonstrator goes beyond the prototype because is intended to show the full feasibility of the concept at the real scale of commercialization. "

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LesAdieux said:

I think in China and ｉｎUS as well, the order ｉｓ　ｄｅｍｏｎｓｔｒａｔｏｒ，　ｐｒｏｔｏｔｙｐｅ，　ｐｒｏｄｕｃｔｉｏｎ．

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Totoro said:

as far as i can tell, western engine development usually several years for a demonstrator programme, then it goes into prototype phase, 1-2 before engine bench test, then some 3 more years before first flight test, then another 2.5 to 3 years before operational capability.

Realistically, ws15 sounds like it's some 7-8 years away from operational capability. But j20 was always suspected to be using older engines for its first two or three batches.

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Totoro said:

True. Taihang programme started in 1986 with preliminary work and had a demonstrator of technologies fired up in 1992, followed by development hell and prototypes since then until 1999. Design was changing and sometime during that period the product we now know as ws10a appeared and was ready for testing. It first flew on a su27 in 2002. and was fully tested and certified for production by end of 2005. Sadly, as we know, production issues on serially produced engines prevented operational capability within plaaf for several more years.

What I suggusted for ws15 is a bit more optimistic than ws10 development, it's more a standard for western engine development. Who knows how well ws15 development is going or will go...

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Totoro said:

True. Taihang programme started in 1986 with preliminary work and had a demonstrator of technologies fired up in 1992, followed by development hell and prototypes since then until 1999. Design was changing and sometime during that period the product we now know as ws10a appeared and was ready for testing. It first flew on a su27 in 2002. and was fully tested and certified for production by end of 2005. Sadly, as we know, production issues on serially produced engines prevented operational capability within plaaf for several more years.

What I suggusted for ws15 is a bit more optimistic than ws10 development, it's more a standard for western engine development. Who knows how well ws15 development is going or will go...

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Blackstone said:

Unless and until China's jet engine industry truly absorb lessons learned from the WS-10x projects, then we'll see feature creep, design delays, cost overruns, manufacturing problems, and quality non-assurance.

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Blackstone said:

Unless and until China's jet engine industry truly absorb lessons learned from the WS-10x projects, then we'll see feature creep, design delays, cost overruns, manufacturing problems, and quality non-assurance.

Click to expand...