Second aeronautical equipment certificate issued for REVAL ATS digital tower system Tallinn, Estonia

Adacel Technologies Limited (Adacel) and Estonian Air Navigation Services (EANS) are happy to confirm a new milestone for REVAL.

The REVAL ATS digital tower system, deployed at Tartu Airport in Estonia, received the aeronautical equipment certificate from the Estonian Transport Administration. The system was developed by Adacel in close collaboration with EANS with the goal of transitioning Estonia’s regional airports to fully digital air traffic service operations.

“This certification embodies one of our core values to empower our customers and team members to reach their potential, and I could not be prouder of our close-knit collaboration and continued success,” shares Daniel Verret, Adacel’s CEO. “EANS’ revolutionary vision along with our employees’ technological expertise is transforming the Estonian’s airspace management and makes it possible to modernize air traffic services at regional airports around the world,” continues Mr. Verret.

“This is the second REVAL ATS system that was awarded the aeronautical equipment certificate. In November, 2022, the Estonian Transport Administration issued the first certificate for the REVAL system located at Kuressaare airport in Estonia. Thanks to the previously completed process, getting the certificate for the Tartu REVAL system went smoothly, and we are just as happy with this achievement”, said Ivar Värk, EANS CEO.

The system in Tartu is currently in active shadow operation mode, the last validation phase before going operational. During this phase, for testing purposes, the Tartu Aerodrome Flight Information Service (AFIS) is provided from a remote tower center in Tallinn, while the team at the traditional airport tower in Tartu retains full access to air traffic management systems and could take control if necessary.

“The shadow operations will last through March 10, 2023, after which we will submit the application to the Estonian Transport Administration to approve Tartu AFIS from the remote tower center in Tallinn. After that, we can start providing the service in Tartu from our remote tower center on a permanent basis,” explained Mr. Värk.


REVAL remote Air Traffic Services (ATS) tower system delivers a wide spectrum of digital tower operational solutions, from consulting services to system design, development, deployment, and support, for a successful transition to virtual tower operations. REVAL was built on modular, open architecture principles suitable for a variety of aerodrome operational needs, including integration with existing or new air traffic management, communication, navigation, and surveillance systems. REVAL was created to provide all the benefits of a remote tower with a more cost-effective approach.

The tower can be used remote or onsite, for single or multiple aerodrome operations. When used remote, this virtual ATC tower can operate independently in a one-to-one aerodrome control setting or as part of a multiple virtual tower center.

About Adacel

Established in 1987, Adacel is a publicly traded company listed on the ASX. The company plays a significant role in global air space safety. A world-leader in its industry, Adacel applies cutting-edge technologies to develop advanced air traffic control simulation and training systems and state-of-the-art air traffic management solutions. Adacel’s customers include international air navigation service providers (ANSPs), military, defense & security organizations, universities, and airport authorities. More than 21% of the world’s airspace is managed with Adacel’s Aurora ATM software. MaxSim Tower Simulator and Training systems lead the industry with the highest number of installations worldwide. MaxSim is also the first ATC simulation system in the world to deliver Virtual and Mixed Reality training capabilities into the classroom. Adacel’s latest flagship system, REVAL, a digital Air Traffic Services (ATS) tower system delivers a wide spectrum of digital tower operational solutions, from consulting services to system design, development, deployment, and support. For more information, please visit

About EANS

Estonian Air Navigation Services (EANS) is a next generation air navigation services provider, headquartered in Tallinn, Estonia. We provide safe and efficient air navigation services together with air traffic management consultation and training services. We are well integrated into international air navigation services community and shaping the future of air traffic management within European Union. Coming from one of the world’s most advanced digital societies, Estonia, gives us the strength, knowledge, and expertise to make the digital transformations in air navigation industry real. EANS is a state-owned public limited company under the jurisdiction Ministry of Economic Affairs and Communication of Republic of Estonia. For more information, visit

For further information, contact:

Aliona Groh

Adacel Director, Marketing and Communications


Direct line: +1 407-567-2086