Collaborating with a contact in California to build a platform for the recreational flight market. It qualifies as a free-flight Part 103 Ultralight in the US, and as a ground-effect vehicle (GEV) in the UK. I'd consider decamping to the US, which Elon Musk himself claimed was the only place to pursue ventures such as these. The design draws on experience gleaned from the three years effort and provides a compact and efficient layout of motors that can be addressed as a virtual quadcopter (as illustrated) so as to simplify it further.
