The engineer Jan Bahyl died at the age of 59. Here is all you want to know, and more!
Biography - A Short Wiki
Engineer who held the patent for the helicopter and used hydraulics in many of his innovative inventions.
He earned a technical drawing degree from the Mining Academy of Banská Štiavnica before joining the Hungarian Army.
He acquired seventeen patents during his life, including one for a hot air balloon with an air turbine.
He was born in Zvolenská Slatina.
Bahyl and Kitaw Ejigu are both celebrated engineers.