Altitude Nexus designs flight procedures in accordance with ICAO PANS-OPS (Doc 8168), considering a wide range of interdisciplinary constraints such as safety, noise, and capacity, as well as airspace integration and configuration aspects. These activities are carried out in close coordination with air navigation service providers, aviation authorities, airports, and aircraft operators.
Based on client requirements and specifications, Altitude Nexus develops the necessary flight procedures, including:
• Conventional instrument approach procedures (e.g. ILS, LOC, VOR)
• Performance-based navigation (PBN) instrument approach procedures (e.g. RNP APCH with LNAV, LNAV/VNAV, or LPV minima)
• Standard Instrument Departures (SIDs) and Standard Terminal Arrival Routes (STARs)
• ATS routes for the en-route phase of flight
The design process follows an iterative approach, enabling the incorporation of client-specific operational requirements such as continuous climb and continuous descent operations (CCO/CDO). Conceptual designs are coordinated with all relevant stakeholders. Once the conceptual instrument flight procedures are approved, the applicable design criteria are applied in accordance with the latest ICAO international standards, specifically ICAO Doc 8168 (PANS-OPS). Where alternative criteria are required—such as national deviations from PANS-OPS—these are coordinated and agreed upon with the involved stakeholders.
When required, Altitude Nexus can also produce aeronautical charts to support flight validation activities (see Feasibility Studies). Chart production complies with ICAO requirements, including ICAO Annex 4 and ICAO Doc 8697 (Aeronautical Chart Manual).