“UAVs/Model aircraft that are not GPS equipped and do not exceed a certain weight, i.e., 5kg, should not be subject to more rules and regulations (if flown in unpopulated areas or at official flying fields). These models are very unlikely to be flown further than half a mile from pilot’s position and current laws are sufficient to cover these scenarios. GPS-equipped/fully autonomously flying craft may require to be registered if weight exceeds certain threshold, say 1kg.”