Creating accurate departure and arrival procedures is a cornerstone of flight safety and operational efficiency. These structured plans guide pilots through the most dynamic phases of flight: climbing away from an airport and descending into it. When designed with precision, they reduce pilot workload, minimize communication errors, and ensure compliance with airspace regulations. Whether flying under instrument flight rules (IFR) or visual flight rules (VFR), having a well-crafted set of procedures allows crews to anticipate challenges, manage contingencies, and execute a smooth profile from gate to gate. This article provides an in-depth look at how to build reliable departure and arrival procedures and why they matter for every flight.

Understanding Departure Procedures

Departure procedures are the standard routes and instructions that get an aircraft safely from the runway environment into the broader airspace system. They are designed to clear obstacles, manage noise abatement, and provide orderly traffic flow. The two primary types are Obstacle Departure Procedures (ODPs) and Standard Instrument Departures (SIDs). ODPs provide basic obstacle clearance for pilots who do not have a specific SID assigned, while SIDs offer more complex routing with defined waypoints and altitude restrictions. Both types require careful planning to match airport characteristics, surrounding terrain, and air traffic control expectations.

Key Elements of an Effective Departure Procedure

  • Obstacle clearance: Every departure must guarantee a minimum climb gradient (typically 200 feet per nautical mile) until reaching a specified altitude. Terrain, towers, and buildings influence the required gradient.
  • Navigation fixes: Waypoints, VORs, NDBs, or GPS coordinates form the route structure. Pilots must verify these are correctly loaded into the flight management system (FMS) or GPS.
  • Communication procedures: Clearance delivery, ground, tower, and departure control frequencies must be listed and understood. Standard phraseology reduces confusion.
  • Altitude and speed restrictions: Many SIDs include crossing restrictions (e.g., "cross ABC at or below 3,000 feet"). These ensure separation with arriving traffic.
  • Noise abatement considerations: Some airports have preferred departure tracks or power reductions to minimize community noise.
  • Contingency planning: A lost-communications procedure, a go-around plan, and an alternate clearance for weather deviations should be included.

Building a Departure Procedure from Scratch

When creating a custom departure procedure (for example, in a corporate flight department or for a specific helicopter operation), start by reviewing the Airport/Facility Directory (A/FD) and the terminal procedures publication. Identify all obstacles within a 3‑nautical-mile radius of the runway end. Calculate the required climb gradient using standard formulas (obstacle height multiplied by 60, divided by distance). Then, select a suitable navigation aid or waypoint as the initial fix. Coordinate with local ATC to ensure the proposed route is compatible with existing traffic patterns. Finally, document the procedure in a clear, step‑by‑step format and include it in the flight plan brief. For more information on obstacle departure standards, refer to the FAA’s Advisory Circular for Instrument Procedures.

Designing Effective Arrival Procedures

Arrival procedures, commonly published as Standard Terminal Arrival Routes (STARs) or area navigation (RNAV) arrivals, transition the aircraft from the en‑route phase to the approach phase. Their primary goals are to sequence multiple aircraft, manage descent profiles, and provide easy transitions to instrument approaches. A well‑designed arrival reduces altitude and speed adjustments late in the flight, conserving fuel and lowering pilot stress.

Components of an Arrival Procedure

  • Transition fixes: These are the entry points where the aircraft leaves the airway and enters the terminal area. Common examples are VORs, intersections, or waypoints named after nearby cities.
  • Altitude management: Descent planning is critical. Many STARs include crossing altitudes at each fix (“cross TORCH at or above 10,000”). Pilots must subtract altitude from distance to verify a continuous descent.
  • Holding patterns: When traffic is heavy, holding may be required. The procedure should specify the holding fix, direction, leg length (or time), and expected clearance.
  • Approach transition: The arrival procedure must end at a waypoint that begins the instrument approach (e.g., the initial approach fix). This ensures a seamless handoff to approach control.
  • Speed constraints: Many arrivals impose speed limits (e.g., 250 knots below 10,000 feet, or 200 knots inside the terminal area). These allow ATC to maintain spacing.
  • Weather contingencies: If the forecast includes low visibility or strong winds, the procedure should include an alternate approach or a missed approach plan.

Creating a Custom Arrival Procedure

For operators flying into small or uncontrolled fields without published STARs, a custom arrival procedure is essential. Start by selecting a prominent navigational fix that is within 30‑40 nautical miles of the destination. Use that fix as the “gate.” Determine a standard descent profile: a good rule is 3 degrees (about 300 feet per nautical mile). Check for any controlled airspace (Class B, C, or D) that requires communication or specific altitude restrictions. Coordinate with nearby approach control if the field lies under a Class B shelf. Write the procedure as a sequence of waypoints with altitudes; for example, “From GATES, proceed direct to CROSSWAY at 12,000 feet, then direct to LAKES at 8,000 feet, then to the final approach fix at 3,000 feet.” Include a lost‑links check (what if you lose radio contact) and note the procedure turn or base leg. A useful resource for designing instrument arrivals is the ICAO Instrument Procedure Construction Manual.

Best Practices for Accurate Procedure Creation

Regardless of whether you are a professional dispatcher, a chief pilot, or a private owner, certain principles apply to every flight. The following best practices will help you produce departure and arrival procedures that are both safe and efficient.

Use Authoritative Data

Base every waypoint, frequency, and altitude on the most current charts. The FAA publishes digital charts via its Aeronautical Navigation Products site. For international flights, use Jeppesen or government‑approved data. Cross‑check any coordinates with satellite imagery to avoid obstacles not shown on older charts.

Collaborate with Air Traffic Control

Before committing a procedure to your operations manual, run it by the local ATC facility. They may have unpublished requirements, such as preferred radio frequencies, noise abatement policies, or traffic flow constraints. ATC can also verify that your route does not conflict with military operations areas (MOAs) or special use airspace.

Include Contingency Plans

Every procedure must account for typical off‑nominal scenarios: holding, diversion, engine failure after takeoff, or a missed approach. For departures, identify the minimum climb gradient in case of one engine inoperative (OEI) and mark suitable return‑to‑airport or diversion airports along the route. For arrivals, include a holding fix and fuel reserves adequate for at least 45 minutes of holding at 5,000 feet.

Verify with a Flight Simulator or Practise Flight

Before using a new procedure operationally, simulate it. A desktop flight simulator or a full‑motion device can reveal altitude busts, confusing transitions, or waypoint misloads. If you are a Part 135 or Part 121 operator, conduct a training session with at least two crews to test understanding.

Keep It Simple and Standardized

Resist the temptation to over‑complicate. Use names that are easily understood (e.g., “RIVER1” for a fix near a river). Avoid tall‑order constraints like “cross at exactly 9,500 feet and 230 knots” unless absolutely necessary. Stick to standard phraseology and formatting so that any pilot can pick up the sheet and execute it.

Regularly Review and Update

Airspace, obstacles, and frequencies change often. Schedule a quarterly review of your custom procedures. Mark the date of last update in the header. Notify all crew members immediately if a change is made. Consider subscribing to the FAA’s Notices to Air Missions (NOTAMs) system for local alterations.

Technology Tools for Procedure Creation

Modern flight planning software dramatically simplifies building accurate procedures. Tools like ForeFlight, Garmin Pilot, or specialized flight planning modules (e.g., Lido or Jeppesen OpsData) allow you to drag‑and‑drop waypoints, automatically calculate altitudes, and export procedures directly to the aircraft’s FMS. Many also include obstacle databases and terrain alerts. When using these tools, always double‑check the results: a common error is a waypoint that is not recognized by the FMS due to a naming convention mismatch. For example, the FAA may use “TACOMA” while the database uses “TOMA.” Always perform a database cross‑check before flight.

Integrating with the Aircraft FMS

Once the procedure is built in software, upload it as a company route. Ensure the import format matches the aircraft’s FMS (e.g., ARINC 424, XML, or proprietary format). After loading, use the FMS scratchpad to read each waypoint latitude and altitude. A pre‑flight validation step can catch errors that would be hazardous in the air.

Regulatory Compliance and Documentation

Departure and arrival procedures are not merely suggestions; they are part of the required flight planning documentation. Under FAR Part 91, you need a flight plan if operating IFR or if crossing certain airspace. Under Part 135, you must have a known route, including departure and arrival procedures. For international operations, ICAO Annex 2 requires that the flight plan includes the entire intended route. All procedures should be filed with the FAA or the appropriate authority 30–60 minutes before departure, depending on airspace classification.

When writing a company operations manual (OpSpecs), include a section on departure and arrival procedure design. Specify who is authorized to create them, how they are approved, and the review cycle. Maintain a log of all procedure changes with dates and reasons.

Training and Crew Familiarisation

A procedure is only as good as the crew’s ability to execute it. Incorporate custom departure and arrival procedures into initial and recurrent training. Use a procedure card with a simplified diagram and a step‑by‑step checklist. During the approach brief, the pilot flying should call out each waypoint and its altitude restriction. The pilot monitoring should verify the FMS programming. A good practice is to conduct a “what‑if” discussion: “If we lose an engine after departure, do we have the mental model to change to the alternate procedure?”

Common Pitfalls and How to Avoid Them

  • Waypoint confusion: Two different arrivals may share a fix name. Use the full identifier (e.g., “VIKNG” vs. “VIKNG1”).
  • Altitude overshoot: Arrivals with steep descent gradients can cause an overshoot if the pilot does not anticipate the descent. Add a “point of descent” calculation to the briefing card.
  • Radio frequency omissions: Always list the control tower frequency as well as the departure and approach frequencies.
  • Not accounting for wind: Strong tailwinds during departure may require a higher climb gradient to clear obstacles. Adjust the procedure if winds exceed 15 knots.

Conclusion

Accurate departure and arrival procedures are not just a regulatory requirement—they are an operational safety net. They reduce ambiguity, streamline communication, and ensure that every flight begins and ends with a well‑understood game plan. By investing time in thoughtful design, using up‑to‑date data, collaborating with ATC, and training crews thoroughly, operators can significantly reduce risk and increase efficiency. Whether you are flying a single‑engine piston or a heavy jet, the principles remain the same: know the terrain, know the airspace, and document every step. Start building better procedures today, and your future self—and your passengers—will thank you.