We have quite a bit of Class G airspace, over here. Known as the "open FIR" or "injun Country". This is pretty much unregulated airspace and provides you with a lot of freedom with which to hang yourself.

IIRC, class G can extend to FL195, though it is often penetrated by other classes of airspace, typically airways or manoevering areas in the vicinity of airports.

However, as pointed out, there is no specific regulation pertaining to model aircraft weighing less than 7kg (in the UK) ... except the usual catch-all which places responsibility on the shoulders of the operator. That's no more than the normal civic duty-of-care, requiring "reasonable" behaviour.


“A person must not recklessly or negligently
cause or permit an aircraft to endanger any
person or property”



You can't drop things from any model.
You have to keep it in sight. (how do you do that if it's free-flight?)
You aren't allowed to make money from your flying ... unless the gubmint gets a "cut".


That's the main bits covered.

No mention is made of staying a minimum distance from people or houses or what-not. That stuff only comes into play when the model's weight exceeds 20kg. At that point, the model becomes subject to much the same regs as does a full-sized aeroplane.


When flying FPV or surveillance aircraft, the CAA has created an amendment to the effect that the model must stay 50 m away from any person, vessel or structure, which is not associated with the flying activities. That's a new one to me. It seems to be an attempt to stop the "intrusive" use of FPV equipment. I don't suppose that it can be policed, though.


But, they then went and muddied the waters again, by adding this note ... NOTE: The provision of data solely for the use of monitoring the model is not
considered to be applicable to the meaning of ‘surveillance or data acquisition’.




So, as I read it, you can fly FPV <7kg, anywhere you like (even in controlled airspace) ... provided that you are only using the FPV equipment for guiding the model (as opposed to data gathering).

What a dog's dinner. Glad I just fly 'em by eyeball.

Could be wrong about any of that ... some FPVer will likely put me right. My brain is smoking.

Not interested in the opinions of the BMFA ... they carry no regulatory weight.