15-03-2016, 05:29 PM
FAA require aircraft operators greater than 250g to register with FAA. CASA may follow FAA, and I have already seen noise about this in the media. This would apply to most of us plane or quads. Look at this article for some science on assessment of the risks.
http://mercatus.org/publication/do-consu...trike-data
http://mercatus.org/publication/do-consu...trike-data