Image caption, The plane has already flown a number of test flights Many other aerospace firms are developing engines that run on hydrogen, but most are not expecting to fly commercially until 2035....
So how have they done it, and could it be possible to fly without causing climate change much sooner than people had thought?...
For the testing period, the other engine remains fuelled by kerosene, in case of failure....
综合
英国广播公司-商业新闻
2023-07-18 00:00:00.0
