prEN 4709-004

This document will provide means of compliance to cover lighting related requirements for Part 2 to 4 of the Annex to the Commission Delegated Regulation on unmanned aircraft and on third country UAS operators. The purpose is to be able to verify that an UA is equipped with lights which: — ensure controllability of the UA. — ensure conspicuity of the aircraft at night, the design of the light shall allow a person on the ground to distinguish a UA from a manned aircraft. This document addresses: — definition of types, technical requirements, and technical parameters of UA lights (e.g. position of lights for different UA categories, intensity for different operation modes). — definition of purpose, test procedures, requirements, and compliance rules to evaluate UA lights.