![](https://www.ecns.cn/hd/2024/06/06/71c9cd4c2a3e4bb38804575bab644466.jpg)
A China's home-grown regional aircraft, ARJ21, numbered B-001Q, prepares to take off on a demonstration flight using sustainable aviation fuel (SAF) at Shanghai Pudong International Airport, June 5, 2024. (Photo: China News Service/Yin Liqian)
China's ARJ21 regional jet and a C919 large passenger aircraft completed their first demonstration flights using sustainable aviation fuel (SAF) on Wednesday. SAF is a liquid aviation fuel alternative to traditional jet fuel. It can reduce carbon emissions by up to 80 percent over the fuel's life cycle compared with conventional jet fuel.
![](https://www.ecns.cn/hd/2024/06/06/3292f9d27b574ffdadfabf7fee5a8346.jpg)
A China's home-grown regional aircraft, ARJ21, numbered B-001Q, prepares to land on a demonstration flight using sustainable aviation fuel (SAF) at Shanghai Pudong International Airport, June 5, 2024. (Photo: China News Service/Yin Liqian)
![](https://www.ecns.cn/hd/2024/06/06/09fd2fcff89a49ac89bb30bc6c15a5c7.jpg)
A China's home-grown regional aircraft, ARJ21, numbered B-001Q, takes off on a demonstration flight using sustainable aviation fuel (SAF) at Shanghai Pudong International Airport, June 5, 2024. (Photo: China News Service/Yin Liqian)
![](https://www.ecns.cn/hd/2024/06/06/a01d6b2bd0634f3b80ad5b00014e1040.jpg)
A China's home-grown regional aircraft, ARJ21, numbered B-001Q, takes off on a demonstration flight using sustainable aviation fuel (SAF) at Shanghai Pudong International Airport, June 5, 2024. (Photo: China News Service/Yin Liqian)
![](https://www.ecns.cn/hd/2024/06/06/ffd31ad47e45472c8697dd8ffc924105.jpg)
A China's home-grown regional aircraft, ARJ21, numbered B-001Q, taxis on a demonstration flight using sustainable aviation fuel (SAF) at Shanghai Pudong International Airport, June 5, 2024. (Photo: China News Service/Yin Liqian)