COMAC C929 Widebody Airliner

pmc

Major
Registered Member
Your examples don’t disprove that all airlines keep a surplus of planes to rotate in and out for service, so whether a flight number flies consistently tells us absolutely nothing about what the service downtime and frequency of a plane is. Evidence is pretty useless if you don’t have a good conceptual understanding of what you’re talking about. In this case that basic conceptual understanding you seem to be missing is the particulars of fleet management, which is one of the primary factors shaping buying decisions for airliners. Mechanical performance is not an issue for on time arrival. It’s an issue for lifetime operations costs. Less reliable planes either means you have to limit your route frequencies where that plane is used, or it means you need to buy more planes to fill in for schedule rotations to compensate for downtime frequency and duration.
because the more routes you adds chance of planes can have breakdown at location that has no immediate replacement available increases. These two airlines are all SSJ type. so there is no much surplus backup. this are single type airline to increase the different routes tell you that they have confidence in the system. otherwise they will be using it among few airport not like 30 to 40.
Certification doesn’t tell you anything about product reliability. It just means that the plane passed a bunch of safety benchmarks. Let me try a simple analogy here. Both a Ford Focus and Toyota Corolla are certified products. Does that mean the Ford is as reliable as the Toyota?
airline certification tests are much much different than car certification. thats why new aircraft flight cycles, engine time on wing are known to a greater degree. incase of Superjet they have to design the FBW that can even deal with congested airports of Europe. this very extensive process.
 

Philister

Junior Member
Registered Member
Russia has been testing this engine on MS21 for few years. Russia do tests to the extremes. so i am not sure why you bring Irish example which is basically a service based economy. 30 year nothing when you understand how difficult this transition from Soviet era with creating assembly lines for all class of aircraft in new and modernized factories. Airbus and Boeing dont make all class of aircraft and if they produce the factories are spread around the world. That global supply chain model does not suit Russia. It is Airbus/Boeing that had Engineering center in Russia. it is Airbus/Boeing that need Russian titanium/Palladium. They will face difficulties once current agreements/stocks runs out. This assume that can keep lights on current electricity prices.

its Thai airforce. i am sure they have done competitive tests and know what they bought.
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China and India are too used to Western airlines. I am sure they will come under pressure as West face economic decline and West will have to take more money from India/China on every engineering product. Russia will not follow them and has quickly disposed off Western jets from regional airports. Unlike other countries Russian airports are considerable distance so they have the experience to apply to MS21 and any wide body aircraft.
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First of all, I don’t know much about India, but China used tu-154 till 2000s, and the fleet were quiet large.
2.Ireland being a service based economy has nothing to do with the poor reliability of this aircraft.
3.Stop lecturing how hard it is to transfer after Soviet Union, every socialist country does that, if you don’t adapt well, you are stupid and should be ruled out
4. Russian titanium and palladium are cheaper, not necessary
5. Thailand bought too much shit I don’t know where to start
 

tphuang

Lieutenant General
Staff member
Super Moderator
VIP Professional
Registered Member
Okay, I listened to the Shilao clip. It makes me think that the future of Russia/China joint projects in aerospace industry will be very hard to do. You get the impression that Russian aerospace industry still think of China as the China of 2005. If Russia continues to hold a dismissive view toward China, then no projects will be possible really. Given that Russia has had such a profound impact on China's aerospace industry, it's probably tough for the Russians to look at China as their equals in a project like this. I also don't see how Russia would be interested in buying aerospace equipment from China as long as they see Chinese aerospace industry as inferior to theirs.

I think it's important to note that while MS-21 seems to be a more advanced design than C919, a modern airline project is more than just the operational cost numbers. More important factors are the availability, reliability and maintainability of the aircraft. That's the side that A321NEO/737MAX has China and Russia crushed. Even, A220 has gotten the title of hangar queen from some people, because it's just not as available as A321NEO. And when we talk about maintenance and servicing, it's also about the suppliers. There is a reason C919 is going with many Western suppliers. They have well established international network and can service customers. It'd be hard for MS-21 or C919 to get orders outside of their home market without established suppliers. In China's case, it probably will need to have enough people sign up to C919 locally and build up local supplier network. Even then, the government will need to jump in and compensate the airlines when a domestic configured configured run into issues and the domestic supplier is having a hard time addressing it. That's why you see them doing these testing with Western suppliers. That's far and away the fastest way for C919 to get certified and delivered. Long term, they will probably develop domestic suppliers and sell them to various ministries or incentivize certain smaller domestic airlines to use them. There is really no other way to develop them, imo.
 

siegecrossbow

General
Staff member
Super Moderator
Okay, I listened to the Shilao clip. It makes me think that the future of Russia/China joint projects in aerospace industry will be very hard to do. You get the impression that Russian aerospace industry still think of China as the China of 2005. If Russia continues to hold a dismissive view toward China, then no projects will be possible really. Given that Russia has had such a profound impact on China's aerospace industry, it's probably tough for the Russians to look at China as their equals in a project like this. I also don't see how Russia would be interested in buying aerospace equipment from China as long as they see Chinese aerospace industry as inferior to theirs.

I think it's important to note that while MS-21 seems to be a more advanced design than C919, a modern airline project is more than just the operational cost numbers. More important factors are the availability, reliability and maintainability of the aircraft. That's the side that A321NEO/737MAX has China and Russia crushed. Even, A220 has gotten the title of hangar queen from some people, because it's just not as available as A321NEO. And when we talk about maintenance and servicing, it's also about the suppliers. There is a reason C919 is going with many Western suppliers. They have well established international network and can service customers. It'd be hard for MS-21 or C919 to get orders outside of their home market without established suppliers. In China's case, it probably will need to have enough people sign up to C919 locally and build up local supplier network. Even then, the government will need to jump in and compensate the airlines when a domestic configured configured run into issues and the domestic supplier is having a hard time addressing it. That's why you see them doing these testing with Western suppliers. That's far and away the fastest way for C919 to get certified and delivered. Long term, they will probably develop domestic suppliers and sell them to various ministries or incentivize certain smaller domestic airlines to use them. There is really no other way to develop them, imo.

Seems like the so called cooperation is just an excuse to get Russian experts free meals and accommodations and shopping opportunities in China.
 

pmc

Major
Registered Member
First of all, I don’t know much about India, but China used tu-154 till 2000s, and the fleet were quiet large.
Problem with Tu-154 is that belong to earlier B737 models of 1960s as Soviets were behind US at time. Soviet replaced with Tu-204 project in 1980s. so Tu-154 never got the deep upgrades with time.
2.Ireland being a service based economy has nothing to do with the poor reliability of this aircraft.
Ireland is hardly standard on heavy engineering with this cheap airline most likely Airbus dump the worse quality products on them.. latest Airbus A220 also uses PW1500G engine. and there are newer models of the engine coming up. one airline cannot make or break a product.
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3.Stop lecturing how hard it is to transfer after Soviet Union, every socialist country does that, if you don’t adapt well, you are stupid and should be ruled out
4. Russian titanium and palladium are cheaper, not necessary
Airbus keep mentioning it. if it was that easy to replace. they would have done it. every socialist country is not engineering superpower that can transition to some other standards. it will have to chose its own path the hard way.
5. Thailand bought too much shit I don’t know where to start
Thailand bought it for VIP of airforce for comfort and luxury.
you have to understand this fundamental reality of post Ukraine importance of Dubai/Istanbul/Tel Aviv.
no airline can take a risk with unreliable plane that has down time as the last minute ticket change or hotel stay in these locations expensive for passengers and crew.
 

gadgetcool5

Senior Member
Registered Member
Okay, I listened to the Shilao clip. It makes me think that the future of Russia/China joint projects in aerospace industry will be very hard to do. You get the impression that Russian aerospace industry still think of China as the China of 2005. If Russia continues to hold a dismissive view toward China, then no projects will be possible really. Given that Russia has had such a profound impact on China's aerospace industry, it's probably tough for the Russians to look at China as their equals in a project like this. I also don't see how Russia would be interested in buying aerospace equipment from China as long as they see Chinese aerospace industry as inferior to theirs.

I think it's important to note that while MS-21 seems to be a more advanced design than C919, a modern airline project is more than just the operational cost numbers. More important factors are the availability, reliability and maintainability of the aircraft. That's the side that A321NEO/737MAX has China and Russia crushed. Even, A220 has gotten the title of hangar queen from some people, because it's just not as available as A321NEO. And when we talk about maintenance and servicing, it's also about the suppliers. There is a reason C919 is going with many Western suppliers. They have well established international network and can service customers. It'd be hard for MS-21 or C919 to get orders outside of their home market without established suppliers. In China's case, it probably will need to have enough people sign up to C919 locally and build up local supplier network. Even then, the government will need to jump in and compensate the airlines when a domestic configured configured run into issues and the domestic supplier is having a hard time addressing it. That's why you see them doing these testing with Western suppliers. That's far and away the fastest way for C919 to get certified and delivered. Long term, they will probably develop domestic suppliers and sell them to various ministries or incentivize certain smaller domestic airlines to use them. There is really no other way to develop them, imo.

The problem is, no matter how good the Western suppliers are or how good their networks, it doesn't matter if it's not available to China. Even if the Western suppliers were x10 better and cheaper than they are now, it wouldn't make a whit of difference from the standpoint of China. The West today is out to suppress China, period. Therefore, any use of Western suppliers is foolish.

If you want to use Western suppliers, give Taiwan independence, apologize to Ugyhurs and call a general election with multi parties. Then you can have all the Western suppliers in the world and they will be as reliable as gold. Otherwise, the only partner is Russia. These are the choices facing China.
 

sunnymaxi

Major
Registered Member
The problem is, no matter how good the Western suppliers are or how good their networks, it doesn't matter if it's not available to China. Even if the Western suppliers were x10 better and cheaper than they are now, it wouldn't make a whit of difference from the standpoint of China. The West today is out to suppress China, period. Therefore, any use of Western suppliers is foolish.

If you want to use Western suppliers, give Taiwan independence, apologize to Ugyhurs and call a general election with multi parties. Then you can have all the Western suppliers in the world and they will be as reliable as gold. Otherwise, the only partner is Russia. These are the choices facing China.
you may don't know. COMAC have many joint ventures with western firms to produce components/parts in mainland. Russia keep insisting to change all of them and build CR929 with domestic parts. not possible to be honest. how can you change the entire design and supply chain of such a huge project.

Western firms have nothing to do with human rights and Taiwan, as long as Chinese market keep open to welcome their business. they have been earning billion of dollars every year.
 

tphuang

Lieutenant General
Staff member
Super Moderator
VIP Professional
Registered Member
The problem is, no matter how good the Western suppliers are or how good their networks, it doesn't matter if it's not available to China. Even if the Western suppliers were x10 better and cheaper than they are now, it wouldn't make a whit of difference from the standpoint of China. The West today is out to suppress China, period. Therefore, any use of Western suppliers is foolish.

If you want to use Western suppliers, give Taiwan independence, apologize to Ugyhurs and call a general election with multi parties. Then you can have all the Western suppliers in the world and they will be as reliable as gold. Otherwise, the only partner is Russia. These are the choices facing China.
I don't think you get it. There are no Chinese suppliers for some of the subsystems that are needed to get c919 project certified right now. China has always gone with 2 paths approach.

That's why you certify with western subsystems now and then develop a Chinese suppliers network. The latter would take a lot of state aid. It is absolutely foolish to delay c919 by another 10 years so that it can be free of western subsystems.
 

Michaelsinodef

Senior Member
Registered Member
If you want to use Western suppliers, give Taiwan independence, apologize to Ugyhurs and call a general election with multi parties. Then you can have all the Western suppliers in the world and they will be as reliable as gold. Otherwise, the only partner is Russia. These are the choices facing China.
Nope that won't be enough for the US, what's more, there's no way China would do any of that.
 
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