COMAC C919

Nutrient

Junior Member
Registered Member
Yeah, science/tech is awesome :) and they can do it. >200,000amps can be replicated.

That is awesome indeed. :)


Volt is not important..

Well, 10,000 amps at a billion volts is 1000 gigawatts, which is about half the total power generated in all of China (and about equal to all of the US). I suppose a large capacitator bank can store the energy until it's needed, but my mind boggles at how enormous the bank would have to be.
 

Atomicfrog

Captain
Registered Member
That is awesome indeed. :)




Well, 10,000 amps at a billion volts is 1000 gigawatts, which is about half the total power generated in all of China (and about equal to all of the US). I suppose a large capacitator bank can store the energy until it's needed, but my mind boggles at how enormous the bank would have to be.
It's for a very short amount of time, an insane instant discharge rate.
 

Nutrient

Junior Member
Registered Member
It's for a very short amount of time, an insane instant discharge rate.

Yes. However, a capacitor doesn't discharge instantly. If you need a great deal of power, you need a lot of capacitors. So my mind boggles at the size of the capacitor bank needed for just 1000 GW.

By the way, I slipped a decimal in my previous calculation. 10,000 amps at a billion volts is 10,000 gigawatts (not 1000 GW), which is like five times the electric generation capacity of all of China, and ten times the US. Not bad for a single lightning bolt!
 

by78

General
Fuselage inspection robot for C919. It's equipped with high-resolution 2D and 3D cameras and other instruments, which can detect cracks and other damages as small as 0.2mm. To conduct an inspection, the fuselage is first pressurized, and then the robot takes detailed images of the fuselage surfaces and beam them wirelessly via 5G for visual analysis, which is done by AI in real time. It can generate up to 50 gigabytes of inspection data per 24 hours.

51118591913_3c4e1c1cfa_o.jpg
 

Deino

Lieutenant General
Staff member
Super Moderator
Registered Member
Airbus Is Confident COMAC’s C919 Can Compete Against The A320neo
by Luke Bodell
May 7, 2021
3 minute read

Airbus chief executive Guillaume Faury claims that COMAC’s C919 will be strong competition for the Airbus A320neo by the end of the decade. Faury made the comments during the Atlantic Council EU-US Future Forum on May 6th, believing that the C919 will progressively transform the single-aisle market into a “triopoly” of Airbus, Boeing and COMAC aircraft.

Stiff competition by the end of the decade
Commercial aircraft manufacturing has long been dominated by the duopoly of Airbus and Boeing. However, Airbus chief executive Guillaume Faury believes this will change as early as the end of this decade, with Chinese planemaker COMAC making swift progress in recent years.

During an online event hosted by the Atlantic Council, Faury said, “It will start slowly, reaching at the beginning probably only the Chinese airlines, but we believe it will progressively become a decent player. We will go from a duopoly to a triopoly on the single-aisle probably by the end of the decade.”

COMAC, C919, Airbus Competition
The C919 is expected to enter service in China by the end of 2021. Photo: Getty Images
COMAC expects to introduce its new narrowbody, the C919, into active service later this year. The plane has yet to receive certification, while COVID-19 complications have delayed important natural icing tests until the autumn. Despite this, COMAC believes it can still make deliveries of the plane before the end of 2021. The C919 has been touted as a viable competitor to the Airbus A320neo and Boeing 737 MAX.

Will the C919 receive foreign investment?
The C919 has received over 800 provisional orders thus far, almost exclusively from airlines and leasing companies within China. While China’s domestic aviation market is extensive, this alone won’t be enough for the C919 to be considered a success. As with COMAC’s ARJ21, operators outside of China are reluctant to order the C919 thus far.

Additionally, many Chinese airlines are already operating the Airbus A320neo in the domestic market, including Air China and China Southern. Faury believes that the C919 will start strongly in China before picking up globally.

Faury said,“We believe they will start with China, because the Chinese airlines are state-owned companies and it’s easier to do it. It takes a lot of time to demonstrate the maturity of a product, to make it reliable, trusted, and economically viable. But we believe it’s not unlikely [that] on the single-aisle, by the end of the decade, COMAC will have taken a certain share of the market.”

Interestingly, Ryanair has expressed strong interest in the plane since early on in its development. In 2011, the airline signed a memorandum of understanding with COMAC at the Paris Air Show. Ryanair chief executive Michael O’Leary reaffirmed the carrier’s commitment to the C919 program last year, claiming competition for Airbus and Boeing would be good for the industry.

Airbus may lose a lucrative market
China has been a vital market for Airbus, with around 20% of its deliveries last year to Chinese customers. Faury claims that the Chinese market will “progressively come with domestic products,” making a dent in Airbus’ interests in the region.

Boeing is also experiencing complications in the region, with China yet to recertify the 737 MAX. This has left Chinese MAX operators, such as Air China and China Eastern, looking to the C919 as a viable alternative.

Do you believe COMAC’s C919 will enter into service by the end of this year? Let us know what you think in the comments.

Journalist - With 10 years of experience as a travel writer and aviation analyst, Luke has worked with industry-leaders including Skyscanner, KLM and HotelsCombined throughout his career. As a passionate traveler based across the Middle East and East Asia, Luke offers strong insights into the travel and aviation industry.

via:
Please, Log in or Register to view URLs content!
 

davidau

Senior Member
Registered Member
Fuselage inspection robot for C919. It's equipped with high-resolution 2D and 3D cameras and other instruments, which can detect cracks and other damages as small as 0.2mm. To conduct an inspection, the fuselage is first pressurized, and then the robot takes detailed images of the fuselage surfaces and beam them wirelessly via 5G for visual analysis, which is done by AI in real time. It can generate up to 50 gigabytes of inspection data per 24 hours.

51118591913_3c4e1c1cfa_o.jpg
This is awesome. Are there any country in the world using this or similar technology?
 

davidau

Senior Member
Registered Member
I dont think that this is such a unique technology. From what I know SpaceX is also using something similar in their Starship program.

So you can expect that major industrial nations are using it.
Hmm. really spaceX starship program using something 'similar'? Which nations.?
 
Top