Sierra Pattern A320
Problem: The PF climbs to 1,500 feet, realizes they are still over the runway centerline, and cranks a 45+ degree bank turn to get back to downwind. Fix: The Sierra Pattern is about geometry, not speed. Shallow bank turns (max 25° in passenger service, 30° in training). If you are too close, fly away from the runway for another mile before turning. Over-banking kills lift.
To understand the Sierra Pattern, you must contrast it with the Echo Pattern. sierra pattern a320
In short: Echo is manual; Sierra is managed. Problem: The PF climbs to 1,500 feet, realizes
Continue climbing while maintaining the 300° heading. Your target altitude is typically 1,500 feet AGL (or pattern altitude). This diagonal path is the middle bar of the "S". In short: Echo is manual; Sierra is managed
| Feature | Sierra Pattern (A320) | Conventional (e.g., Boeing 737) | | :--- | :--- | :--- | | Initial lateral mode | GA TRK (holds existing track) | TO/GA (wings level or runway heading) | | Initial vertical mode | SRS (maintains V2) | Pitch hold or MCP selected | | Pilot workload | Low (monitoring) | Higher (immediate pitch/thrust setting) | | Obstacle protection | Automatic (via FMGC) | Pilot-managed |
