If you select TO/GA below 50 feet radio altitude, the A320 will automatically retract speedbrakes and reset the flight plan to the missed approach route stored in the MCDU. However, the "Sierra Pattern" is often a visual or ATC-assigned missed approach, not necessarily the one coded in the database.
While exact figures vary slightly by airline Standard Operating Procedures (SOPs), aircraft weight, and specific engine types, a standard mental table often aligns with the following approximate parameters: Flight Phase / Configuration Target Speed Approx. Pitch Attitude Approx. Thrust / N1 (Clean) Level Flight (Flaps 1) Level Flight (Flaps 2) Precision Final (Config Full) VAPPcap V sub cap A cap P cap P end-sub Standard 3° Descent (Clean) 🔄 Flying a Standard Traffic Pattern sierra pattern a320
After the GA thrust is set, pull the heading knob to engage HDG mode. Dial in your 30° offset. This frees you from the Flight Director’s straight-ahead command and allows you to fly the “S” shape visually. If you select TO/GA below 50 feet radio