The SESAR 2020 project PJ05 “Remote Tower for Multiple Airports” aims to bring the concept of remotely controlled multiple airports to the next maturity level. From 19th to 27th March 2018, the Lithuanian ANSP Oro Navigacija (ON), DLR and Frequentis AG performed a validation exercise for multiple Remote Tower at DLR in Braunschweig, to test the concept’s operational feasibility.