The L-band digital aeronautical communication system - LDACS – is a digital broadband radio link that enables a connection between an aircraft and the terrestrial infrastructure, just like in cellular telephony. This secure, scalable and spectrum efficient data link also boasts of having navigation and surveillance capabilities, thereby offering an attractive integrated CNS solution for the sector. The project will carry out flight tests to demonstrate how LDACs can enable optimised separation between aircraft in real time and the use of multiple non-GNSS technologies to provide an integrated navigation solution.