We are building a manned copter with a gasoline engine and propellers with variable pitch.
In order not to repeat itself - very detailed information is available on our website - https://flying-bike2018.com/home/
A small video report - on this video!
Before asking questions or commenting - a big request - read the description of the project on the site. I tried VERY MORE to describe my arguments.
As the construction of the Copter progresses, I will publish new information.