Class UK4 Product Limits

Verified from official sources
UK Regulation (EU) 2019/945 Annex Part 5Version 1Effective -Verified 23 August 2026

In plain language

A UK4 drone is under 25 kg and is manually flown - no automatic flight modes beyond basic stabilisation and lost-link assistance.

Requirement as structured

A class UK4 UAS must have an MTOM of less than 25 kg including payload and must not be capable of automatic control modes, except for flight stabilisation assistance with no direct effect on the trajectory and lost-link assistance.

Original regulatory text

A class UK4 UAS shall comply with the following: have an MTOM of less than 25 kg, including payload; ... not be capable of automatic control modes except for flight stabilisation assistance with no direct effect on the trajectory and lost link assistance ...

Applies when

country
United Kingdom
category
Open
operation
UK UAS operation
regulatory category
Open