NLR recently started working on the European TRAWA project, intended to develop standards for so-called ‘detect and avoid’ (DAA) systems on board drones. These systems ensure that a drone pilot can detect other aircraft in a timely manner, so that he/she can execute an avoidance manoeuvre where necessary to prevent a possible collision. The TRAWA project is being conducted on behalf of the European Defence Agency (EDA) and is funded by the European Commission. [...]