After the successful jump by Adrian Nicholas of a parachute based on da Vinci's sketch, the natural next step is a successful landing with the device. Oliver Vietti-Teppa set out to achieve this. His version of the device was of the same four triangular-sided pyramid shape. Each side was an equilateral triangle that was about 23 feet long. It also did not have a wooden frame, as he was worried about the complications from the extra weight. He utilized a modern fabric to improve upon the Nicholas version. He began in a helicopter hovering over 2000 feet in the air. He wore a modern chute as a back-up, but he was able to land safely without it. He was credited as the first successful landing of a parachute mimicking da Vinci's design.

Sources and Image Source:
Parachute - by Leonardo Da Vinci. (n.d.). Retrieved from https://www.leonardodavinci.net/parachute.jsp#prettyPhoto
Simpson, A. (2008, April 28). Leonardo da Vinci parachute from 1485 finally has successful landing. Retrieved from https://www.telegraph.co.uk/news/1905000/Leonardo-da-Vinci-parachute-fro...