Dale Kramer proposed a kickstarter funder VTOL aircraft a couple of years ago (https://www.kickstarter.com/projects...ertical-takeof) that I had a number of serious concerns over. While the kickstarter was unsuccessful, it is worth noting that such an aircraft has being successfully developed in China:

https://www.avweb.com/avwebflash/new...-230280-1.html

Their idea of "long range" is only 6 miles!

Tom