Maximum visual line of sight distance

Verified from official sources
Art. 17/4, § 1, 1°Version 1Effective -Verified 24 August 2026

In plain language

You must keep your model aircraft in direct sight at all times, and it cannot be further than 400 meters away from you unless your permit says otherwise.

Requirement as structured

The remote pilot must maintain direct visual contact with the model aircraft at all times, with the distance between them not exceeding 400 meters unless authorized otherwise.

Original regulatory text

in alle omstandigheden rechtstreeks visueel contact met zijn modelluchtvaartuig houden zonder dat de afstand tussen de piloot op afstand en de modelluchtvaartuig meer dan 400m bedraagt tenzij anders bepaald in de machtiging

Applies when

operation
VLOS