Maximum Takeoff Mass for Unmanned Sailplane Slope Derogation

Verified from official sources
GM1 UAS.OPEN.010(4)GM1 UAS.OPEN.010(4)Version 1Effective -Verified 24 August 2026

In plain language

If you are flying an unmanned sailplane (model glider) along a slope under this derogation, your aircraft's maximum takeoff mass (including payload) must not exceed 10 kg.

Requirement as structured

EASA guidance notes that the derogation for unmanned sailplanes operating along slopes is limited to aircraft with a maximum takeoff mass, including payload, of 10 kg.

Original regulatory text

(a) A maximum takeoff mass (MTOM), including the payload, limited to 10 kg to reduce the consequences of an impact.

Applies when

country
European Union / EASA
operation
unmanned sailplane slope soaring
regulatory category
Open