Chinese Aviation Industry

sunnymaxi · Jul 22, 2023

tphuang said:
on the idea of COMAC & CATL creating an electric plane

sub 100 seat 600-1200km would be great. I do think that's quite optimistic. I don't know if that's possible. Would be an interesting looking aircraft

Dutch start-up company Maeve Aerospace plans to manufacture a 44-seat all-electric regional airliner Maeve 01 by 2029.

Maeve 01 has 8 wing propellers, can fly 460 kilometers at a cruising speed of 488 kilometers per hour, will achieve zero emissions, and reduce noise by 40%, and the charging time is 35 minutes.

maybe CATL and COMAC JV will be a project like this.

sunnymaxi said:
Dutch start-up company Maeve Aerospace plans to manufacture a 44-seat all-electric regional airliner Maeve 01 by 2029, and released an image of it.

Maeve 01 has 8 wing propellers, can fly 460 kilometers at a cruising speed of 488 kilometers per hour, will achieve zero emissions, and reduce noise by 40%, and the charging time is 35 minutes.

The company expects that based on advances in battery technology, the airliner could be converted to a 52-seat passenger plane in 2032 and achieve a flight range of 710 kilometers in 2040. The company plans to produce as many as 1,200 of the aircraft in the future.

View attachment 116132

so COMAC Joint Venture with CATL could be a project like this.

in this joint venture CATL, COMAC and SJTU will establish a firm for Civil engine components manufacturing.

the outcome of this joint venture will be huge. if everything goes well. look what China has done with EVs as compared to ICE automobile.

tphuang · Jul 22, 2023

sunnymaxi said:
Dutch start-up company Maeve Aerospace plans to manufacture a 44-seat all-electric regional airliner Maeve 01 by 2029.

Maeve 01 has 8 wing propellers, can fly 460 kilometers at a cruising speed of 488 kilometers per hour, will achieve zero emissions, and reduce noise by 40%, and the charging time is 35 minutes.

maybe CATL and COMAC JV will be a project like this.

I think COMAC needs to look into ultra pure H2 fuel. Energy density is just so much higher for liquid H2 > battery tech.

You'd probably need 1000 wh/kg battery pack with the most efficient electric drivetrain to get a commercially viable aircraft. Just my guess

Think about it this way, jet fuel energy density is 12000 wh/kg

Also, they need to figure out how to do fast charging

CrazyHorse · Jul 22, 2023

tphuang said:
I think COMAC needs to look into ultra pure H2 fuel. Energy density is just so much higher for liquid H2 > battery tech.

You'd probably need 1000 wh/kg battery pack with the most efficient electric drivetrain to get a commercially viable aircraft. Just my guess

Think about it this way, jet fuel energy density is 12000 wh/kg

Also, they need to figure out how to do fast charging

Or they could just do what China does best and expand the high speed rail network to make it even cheaper and ideally faster.

sunnymaxi · Jul 24, 2023

Jakarta to Kuala Lumpur route has officially opened..

PK-TJA, one of the two existing ARJ-21 of Indonesian TransNusa Airlines, took off from Jakarta at 7:41 local time, took flight 8B671 to Kuala Lumpur, the capital of Malaysia, and officially opened.

Lingya's second ARJ-21 PK-TJB also took off from Jakarta to Kuala Lumpur at 11:39 for flight 8B673, while the first PK-TJA is on its way back. Today, these two Gillians joined the Jakarta=Kuala Lumpur route.

chlosy · Jul 24, 2023

sunnymaxi said:
Jakarta to Kuala Lumpur route has officially opened..

PK-TJA, one of the two existing ARJ-21 of Indonesian TransNusa Airlines, took off from Jakarta at 7:41 local time, took flight 8B671 to Kuala Lumpur, the capital of Malaysia, and officially opened.

Lingya's second ARJ-21 PK-TJB also took off from Jakarta to Kuala Lumpur at 11:39 for flight 8B673, while the first PK-TJA is on its way back. Today, these two Gillians joined the Jakarta=Kuala Lumpur route.

View attachment 116273

View attachment 116274

Pardon my ignorance... the flight certification for the ARJ21 is accepted by how many countries?

gelgoog · Jul 24, 2023

People make too much of a big deal out of EASA or FAA certification. Outside of those markets it means little. The Soviets regularly sold aircraft to South America, Africa, the Middle East, and Southeast Asia. In particular for a regional aircraft like the ARJ21 which will only operate within those markets Western certification is kind of irrelevant. Do you really think any EU or North American country would be buying the ARJ21 in the first place? It is at least a generation behind other aircraft in the segment made in the West. So it is basically competing there with older second hand aircraft.

China just needs to make a product which is available at a decent price with reasonable quality.

Deino · Jul 25, 2023

A very rare glimpse ..

https://twitter.com/i/web/status/1683429697739272193

tphuang · Jul 26, 2023

2023年6月19日，中国工程院院士航空动力专家刘大响、中国工程院院士机械制造领域专家郭东明、中国工程院院士飞行器设计专家樊会涛等一行带队赴弗迪电池第二事业部ZZB工厂参观调研，双方就刀片电池产品优势、车间2.0生产线及技术创新进行了深入交流。

From Chinese academy of engineering. Experts in aerodynamics (engines), manufacturing & aircraft design showed up at BYD Fudi factory.

Now, are we going to see hybrid motor design or electric motor design on drones or military aircraft or other things. Maybe not necessarily even as primary motor, but to improve power efficiency & density used on J-20 and such. interesting things to consider. Would make a lot of sense here.

Sorry one more thing to consider is just how much more fuel efficient byd dm-i engine is vs your ice engine. Much higher combustion efficiency. So if you put that on a drone, you could see significantly increased range.

JebKerman · Jul 26, 2023

tphuang said:
I think COMAC needs to look into ultra pure H2 fuel. Energy density is just so much higher for liquid H2 > battery tech.

You'd probably need 1000 wh/kg battery pack with the most efficient electric drivetrain to get a commercially viable aircraft. Just my guess

Think about it this way, jet fuel energy density is 12000 wh/kg

Also, they need to figure out how to do fast charging

Liquid H2 sounds great on paper, but in reality it has so many problems. To have the same amount of fuel as kerosene the tanks need to be physically many times bigger, oh and not to mention liquid H2 is at -250C. So you need massive pressurized tanks that also need heavy insulation. You can't put LH2 in wings like normal planes, therefore the wings will need to be stronger to carry the extra heavy fuselage, also the fuel tanks take so much space you will be sitting above/below/next to cryogenic LH2 tanks in the cabin!

by78 · Jul 30, 2023

The firefighting variant of Xi'an MA60 has completed its maiden flight at Yanliang, marking the first step in its certification process.

Chinese Aviation Industry

sunnymaxi

Major

tphuang

Lieutenant General

CrazyHorse

Junior Member

sunnymaxi

Major

chlosy

Junior Member

gelgoog

Lieutenant General

Deino

Lieutenant General

tphuang

Lieutenant General

JebKerman

Junior Member

by78

General