Flying

 https://www.smithsonianmag.com/history/the-man-who-pierced-the-iron-curtain-in-a-flying-go-kartand-left-civilization-forever-180982739/

aerocryptografico 

https://www.civanews.com/news/ladislav-bezak/

https://en.wikipedia.org/wiki/Ladislav_Bez%C3%A1k

https://web.archive.org/web/20130128152636/http:/www.time.com/time/magazine/article/0,9171,879026,00.html (paywall) (how?)

https://www.aerobaticcontestarchive.com/