Re: 3000ft!!
That wasn't flying, that was falling with style!
Seriously tho, his first crossing was more of a powered glide, he launched at 8000ft not sea level, people have been power gliding across the channel for over 40 years. For me, his best achievement was his hoverboard crossing where he did take off from the beach. Yes he had to make a fuel stop half way across, but maintaining a steady 30-40 feet requires a lot more skill than jumping out of a plane at 8000 feet and travelling downwards all the way.
https://www.theguardian.com/uk-news/2019/aug/04/franky-zapata-crosses-channel-by-hoverboard-at-second-attempt