Class C4 Maximum Take-Off Mass
Verified from official sourcesPart 5Part 5Version 1Effective -Verified 22 August 2026
In plain language
The total weight of your C4 drone, including payload, must be less than 25 kg.
Requirement as structured
A class C4 UAS must have a maximum take-off mass (MTOM) of less than 25 kg, including payload.
Original regulatory text
have an MTOM of less than 25 kg, including payload;
Applies when
- operation
- UAS product requirements
- class marking
- C4
- regulatory category
- Open