Orthogon Departure Manager (DMAN)


The Orthogon Departure Manager (DMAN) provides consistent, optimized planning of the outbound traffic at airports and accordingly optimized target times for flights at the runway and the stands. Major objectives are to efficiently manage the departure traffic at an airport, ensuring that the maximum available runway capacity is used and that additional constraints, such as Air Traffic Flow Management requirements, are properly managed. To achieve these goals, DMAN sequences departures and generates advice for all controllers involved.

Enabler for Airport Collaborative Decision Making

DMAN manages the number of flights that are released from the stand to avoid long queues at the runways, saving fuel for airlines and improving efficiency. Both are key metrics of A-CDM. The DMAN planning information is provided to the A-CDM community improving predictably and flexibility.


  • Improves runway capacity utilization through departure sequence and schedule optimization
  • Reduces costs and environmental impacts caused by capacity imbalances and excessive holding times at the runway
  • Enhances common situational awareness and predictability by sharing the DMAN planning times with all stakeholders

Optimizing runway usage at high-demand, capacity-constrained airports can be difficult, especially for mixed-mode operations where airports have only

one runway available for arrivals and departures.

The Orthogon Coupled AMAN-DMAN solves the challenge of synchronizing arrivals and departures by truly integrating the respective traffic streams while considering corresponding demand levels and available capacities. Thereby, efficient arrival-departure pattern gets the most out of limited runway resources ensuring robust, yet flexible planning.

Maximizing efficiencies for mixed-mode operations

While individual AMAN/DMAN systems offer important benefits, a coupled system unlocks additional improvements for mixed-mode runways such as further improved predictability and capacity. A more realistic and precise accuracy on landing and departure times will increase sequence predictability. Consequently, situational awareness is improved for Tower and Approach allowing them to better plan while accomplishing their performance goals.

Increased predictability and runway capacity


  • Realistic and precise landing and departure times for increased predictability
  • Increased runway throughput by mitigating demand-capacity imbalances
  • Optimized arrival-departure ratio for reduced loss of slots
  • Improved planning for optimized efficiency
  • Orthogon supplied numerous worldwide customer installations at the busiest hub airports, in the most challenging airport and airspace environments.
  • The Orthogon AMAN and DMAN systems accumulated many decades of operational hours with the highest customer satisfaction.
  • For the E-AMAN and XMAN activities Orthogon was awarded the SWIM Master Class Award 2013 and the IHS Jane’s Award 2015.
  • Harris Orthogon innovates by deploying worlds-firsts (e.g., AMAN support of Point Merge System in Oslo, XMAN implementation for London Heathrow Airport).
  • The Orthogon Innovation Lab complements customer projects with cutting edge research.
  • A strong and engaging User Group extends the partnership to our customers well beyond the end of a project.