Maximum Restraining Device Length for Tethered Small Unmanned Aircraft
Verified from official sourcesThe Air Navigation Order 2016 article 265EVersion 1Effective -Verified 21 August 2026
In plain language
The tether holding your drone must not be longer than 25 metres unless your operator has a specific permission from the CAA.
Requirement as structured
The UAS operator or remote pilot must not cause or permit a tethered small unmanned aircraft to be flown where the limit imposed by the restraining device is more than 25 metres long, unless authorized by a CAA permission.
Original regulatory text
the aircraft to be flown where the limit imposed by the restraining device is more than 25m long, other than in accordance with a permission issued by the CAA to the UAS operator.
Applies when
- country
- United Kingdom
- aircraft type
- tethered small unmanned aircraft
- regulatory category
- General