（ビデオあり）ジェットスーツで郵便配達

ジェットスーツは実用段階。
郵便配達もできる！
BBCより、
The postie who went off like a rocket
Richard Browning revives a 1934 dream by delivering a letter to the Isle of Wight in a jet suit.
https://www.bbc.com/news/av/technology-41915072/iron-man-flight-sets-first-world-record