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China Eastern takes delivery of the world's first made-in-China C919 jet

beijingwalker

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China Eastern takes delivery of the world's first made-in-China C919 jet

Fri, December 9, 2022 at 11:53 AM

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China Eastern takes delivery of the world's first made-in-China C919 jet

Logo of China Eastern Airlines is pictured in Beijing

BEIJING/SYDNEY (Reuters) - The world's first C919, a Chinese-made narrowbody jet, was delivered to launch customer China Eastern Airlines in Shanghai on Friday and took off for a 15-minute flight to mark the historic moment.

The plane, a rival to the Airbus A320neo and Boeing 737 MAX single-aisle jet families, is expected to make its maiden commercial flight next spring, according to state-owned Xinhua News Agency.

It was certified for safe operations in September and mass production in November.

The plane delivered to China Eastern has 164 seats and was painted with "the world's first C919" on its side in Chinese and English. Its maiden route will be between Shanghai and the capital Beijing, industry sources have said.

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The single-aisle C919 has been built to compete with Boeing’s 737 and Airbus’ A320. Photo: AFP

China Eastern said on Friday it plans to receive the remaining four of its first batch of C919 orders over the next two years, according to Shanghai's The Paper. That compares with earlier plans to get all four next year.

The airline did not respond immediately to a request for comment.

China's narrowbody jet ambitions intensified over the last few years amid conflicts with the United States from trade to technology that made China increasingly concerned about being overly dependent on Airbus and Boeing.

Commercial Aviation Corp of China (COMAC) is expected to produce around 25 C919s per year by 2030, far lower than the current monthly rates of narrowbody production at its rivals, according to Jefferies analysts.

COMAC did not immediately respond to request for comment.

The C919 currently relies heavily on Western components, including engines and flight control systems, from companies such as GE, Safran and Honeywell International.

China is trying to raise the proportion of domestic parts in the C919 and an alternative engine called the CJ-1000A is under development.


 

Song Hong

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The PDF engineer explains this aircraft. This aircraft is comparable to modern A320NEO but suspiciously her jet engine LEAP-1C is the most inefficient design, despite being the latest product to come online. While fuel consumption is the same as LEAP-1A, her trust is far inferior and it is much more heavy.

It is equivalent to carrying additional 25 passenger.

The single aisle plane carries about 160 pax 2 class. The inefficiency of LEAP-1C is significant.

And C919 can use A320 LEAP-1A and I do not know why they are not using. Is it because Safran is refusing to sell?


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epebble

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The PDF engineer explains this aircraft. This aircraft is comparable to modern A320NEO but suspiciously her jet engine LEAP-1C is the most inefficient design, despite being the latest product to come online. While fuel consumption is the same as LEAP-1A, her trust is far inferior and it is much more heavy.

It is equivalent to carrying additional 25 passenger.

The single aisle plane carries about 160 pax 2 class. The inefficiency of LEAP-1C is significant.

And C919 can use A320 LEAP-1A and I do not know why they are not using. Is it because Safran is refusing to sell?


View attachment 904346
Making a wild guess here: Many parameters match, a few differ. Big difference in weight. My guess is, for cost reason, the 1C uses more steel while 1A uses more Titanium, carbon fiber, ceramic and composites. The titanium replacement for steel might also allow it to operate at higher temperature (+ fan dia.) giving more thrust. A320NEO is going for higher cost 1A while C919 is going with lower cost 1C. Since they are selling the whole engine, I don't think there is any issue with willingness to sell. If you write a cheque, they will sell you one.
 

Song Hong

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The C919 is conservative structurally -- hence not much advantage over A320NEO. The A220-300 exbombardier is the most advance and engineered structure. The prospective A220-500 will be of A320NEO class. The prospective A220-500 will beat every single aisle if all use the same jet engine.

The Airbus is not making A220-500 now because it will cannibalized A320NEO.

For now, Airbus is a potential pipeline product. So they do not have to worry. Seems like Boeing will be in big trouble.





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Song Hong

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C919 has the best cockpit design.

C919

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A320NEO

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B737MAX


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huanghong

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Making a wild guess here: Many parameters match, a few differ. Big difference in weight. My guess is, for cost reason, the 1C uses more steel while 1A uses more Titanium, carbon fiber, ceramic and composites. The titanium replacement for steel might also allow it to operate at higher temperature (+ fan dia.) giving more thrust. A320NEO is going for higher cost 1A while C919 is going with lower cost 1C. Since they are selling the whole engine, I don't think there is any issue with willingness to sell. If you write a cheque, they will sell you one.
Engine weight data is wrong
The reason why leap-1c is much heavier is that the weight contains different components than leap-1a.
LEAP-1c
Weight: 3.935t (including accessories, EBU, exhaust nozzle, plug, installation system, thrust direction lifting unit weight).
LEAP-1A
Weight: 2.99t (basic accessories and oil, fuel weight).
leap-1ca.png

leap-1cb.png
 

Song Hong

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Engine weight data is wrong
The reason why leap-1c is much heavier is that the weight contains different components than leap-1a.
LEAP-1c
Weight: 3.935t (including accessories, EBU, exhaust nozzle, plug, installation system, thrust direction lifting unit weight).
LEAP-1A
Weight: 2.99t (basic accessories and oil, fuel weight).
View attachment 904377
View attachment 904378


I guess when Safran define engine, it will be the below for all the models -- despite different wordings. All those extra components cannot be the main culprit that make Leap 1C 30% heavier.

The only explanation is LEAP 1A is the most advance engine while LEAP 1C is the least advance in the family.



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huanghong

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I guess when Safran define engine, it will be the below for all the models -- despite different wordings. All those extra components cannot be the main culprit that make Leap 1C 30% heavier.

The only explanation is LEAP 1A is the most advance engine while LEAP 1C is the least advance in the family.



View attachment 904382
According to the workbook, the weight data of the leap-1c includes the thrust reverser.
The weight data for leap-1a does not include the thrust reverser.
According to this article, just thrust reverser
It will account for about 20% of the total weight of the engine.
leap-1cc.png
 
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Song Hong

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The Thrust Reverser is integral part of the jet engine. Strange that people define engine without including Thrust Reverser. Its like defining car engine exclude combustion chamber.

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