Are control line (circular tethered) flights within the scope of the EU UAS Regulation? What about tethered and non-tethered free-flight aircraft?
Yes. In general, the EU Regulation applies to all tethered UAS heavier than 1 kg and having a propulsion system. If they are tethered free-flight aircraft (such as kites), the EU UAS Regulation applies only if the weight is more than 25 kg. Changing this requirement would require a change in the Basic Regulation and this cannot be done through an implementing regulation.
Non-tethered free-flight aircraft weighing less than 250 g do not need to comply with any requirement.