Weight and speed limits for privately built UAS in subcategory A1

Verified from official sources
UAS.OPEN.020UAS.OPEN.020Version 1Effective -Verified 24 August 2026

In plain language

If you build your own drone and want to fly it in subcategory A1, it must weigh less than 250 grams (including battery and cameras) and its maximum speed must be less than 19 meters per second (approx. 68 km/h).

Requirement as structured

A privately built UAS operated in subcategory A1 must have a maximum take-off mass (MTOM), including payload, of less than 250 g and a maximum operating speed of less than 19 m/s.

Original regulatory text

has an MTOM, including payload, of less than 250 g and a maximum operating speed of less than 19 m/s, in the case of a privately built UAS;

Applies when

operation
privately built UAS
subcategory
A1
regulatory category
Open