to do a small combustion engine VTOL vehicle its even harder I have only seen it work with several two stroke engines. Another optin is turbine like the AirMul

to do a small combustion engine VTOL vehicle its even harder I have only seen it work with several two stroke engines. Another optin is turbine like the AirMule, but will be hard to use it for civilian operations the hourly cost is brutal and noise and heat is really annoying for nearby people and even passengers. https://en.m.wikipedia.org/wiki/Urban_Aeronautics_AirMule https://en.m.wikipedia.org/wiki/Urban_Aeronautics_AirMule