Originally Posted by
CGameProgrammerr
In the US there are no limitations at all on what aircraft can be experimental; literally anything can. In fact manufacturers have experimental prototypes or testbed aircraft they use for testing the aircraft, or potential changes to it, before certification.
Yes the US rules are a lot easier for flight testing but as this is is a UK product manufactured in the uk and presumably tested in the uk surely it will need some sort of certification in the uk to allow flight in uk airspace
The uk has only one type of home built helicopter flying in uk airspace
AFAIK