Chinese Engine Development

china-flies-first-large-turbofan

It has the look of the CFM-56 on the A320.Btw i think Deino has posted a picture of this weeks ago

A more detail view of WS-20 Engine

Here is a larger and more detailed view of the WS-20 engine derived from WS-10.

You get an idea of the size of it !



Side by Side comparison with Y-20 using WS-20 and D-30

Suddenly, it looks like with the new engines the Y-20 has more than enough power, in fact too much power if size of engine is enough of an indication. Then again the scales used may not necessary be accurate.

Quickie said:

Suddenly, it looks like with the new engines the Y-20 has more than enough power, in fact too much power if size of engine is enough of an indication. Then again the scales used may not necessary be accurate.

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Eerm .. more power sure, but too much power? One can never have too much power. Especially considering that even the rumors of the WS-20 w/ 30,000lbs thrust is true, that is still significantly lower than the 20 years old F-117 found on the C-17.

One small step for America, one giant leap for China. Keep it up.

volleyballer said:

Eerm .. more power sure, but too much power? One can never have too much power. Especially considering that even the rumors of the WS-20 w/ 30,000lbs thrust is true, that is still significantly lower than the 20 years old F-117 found on the C-17.

One small step for America, one giant leap for China. Keep it up.

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The actual output of the WS-20 aside, you knew I was half joking. In any case, oversize engines in terms of volume may not be the best idea for the aircraft aerodynamics.

as far as engines go, oversized is hardly an aerodynamic detractor as bigger fan means more air sucked in and bigger thrust. one only needs to look at evolution of engines on civilian airliners, those fans just keep getting bigger and bigger in proportion to the fuselage width. and airliners are ALL about aerodynamics and least drag and biggest fuel efficiency.

kawasaki's c-2 transport has pretty large engines for its size, and they're mighty powerful, too. 532 kn of thrust total for a plane with 141 ton mtow. of course, there's the example of c17, with just 720 kn of thrust for mtow of 265 tons. but that's because c17 offers a wide range of capabilities. if one puts a light load on it, it will take off better than a c-2 from unprepared runways. if one loads it up completely, it will be fairly sluggish, but it'll still be loaded with 70 tons, while a c-2 can manage only half of that.

A bigger thrust would enable a bigger MTOW and more flexibility in varying payloads as you've described, but in terms of fuel efficiency there's always the point where using a bigger engine for an aircraft of particular size and increasing the thrust further will start reducing fuel efficiency.

volleyballer said:

Eerm .. more power sure, but too much power? One can never have too much power. Especially considering that even the rumors of the WS-20 w/ 30,000lbs thrust is true, that is still significantly lower than the 20 years old F-117 found on the C-17.

One small step for America, one giant leap for China. Keep it up.

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you do realize total thrust isn't the performance you should be looking at here, right?

Re: J-20 The New Generation Fighter Thread IV

Dizasta1 said:

OMG!!! How did I miss this one?!?!

J-20 looks awesome. Could this be the final prototype, the serial production variant?

China certainly isn't wasting anytime on the J-20!

I hope that China is successful in mastering engine development and production. Cuz, from this angle, it seems that the only thing left for China to do is come up with some solid, powerful, high-performance, maintainence friendly and durable combat-aircraft engines. Once China achieves this, there is no stopping them!!

Also, it seems like J-20's new paint-job, looks similar to the one Raptors and Lightnings have. The only difference is that PLAAF's logo is in color (RED!!), whereas on the Raptor/Lightning, it's in shades of grey/white.

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If my country can achieve America's 1990s engine technology in 30 to 40 years I will be damn happy already