I heard him talking about this airline on talksport radio today. Not sure he mentioned hydrogen once, just that it was going to be electric, I suppose that sounds greener. But he also made it sound so simple, “just take the old combustion engines off and put the new ones on”, but where would all the hydrogen go surely it would be a huge job to retrofit. I thought hydrogen might be the next big fuel for cars which hasn’t happened yet, so hopefully he has some good success proving the concept