The aim of the MIDCAS program is to contribute to the UAS integration in civilian airspace by proposing a baseline of solutions for the "Unmanned Aircraft System Mid-air Collision Avoidance Function" acceptable by the manned aviation.


Currently, Mid-Air Collision avoidance is ensured by several safety layers handled by Air Traffic Management, Local Air Traffic Controller, embedded Collision Avoidance systems as ACAS and the "See & Avoid" capability of a human pilot. This capability shall respect ICAO "Rules of the Air". MIDCAS goal is to propose this capability to UAS.


So MIDCAS function has to :

  • detect (or sense) the aircraft is the vicinity of the UAS equipped,
  • maintain Situational Awareness the human pilot in charge of the control of the Remote Aircraft
  • if needed, propose or execute automatically adapted manoeuvres to restore safe situation between UAS and others aircraft.





MIDCAS ensures a continuous dialog with all players of the aviation community and organisms in charge of aerial safety in order to favor the acceptance of the proposed solution by this community.


MIDCAS is the biggest project funded by the European Defense Agency, supported by the Ministries of Defense (MODs) from five European countries and led by a consortium including 13 European companies. They hold a large portion of European knowledge on Sense & Avoid as well as on other technologies relevant for the project.


Signed during Le Bourget Air Show in June 2009, MIDCAS project ends up in 2014.