Sierra Pattern A320 ❲Free Access❳
At the expiration of the 45-second timer, the PF initiates a 20∘20 raised to the composed with power bank turn toward the base leg and calls for FLAPS 2 .
Managing the "overshoot." In the A320, when you roll out of a turn, the lift vector changes, and the nose will want to rise. You must proactively push to maintain your vertical rate. 4. Configuration Changes
Executing the Sierra Pattern smoothly requires intimate knowledge of the A320's flight deck philosophy:
Modern A320 pilots rely heavily on automation, but the Sierra Pattern is a . Here is the danger zone. sierra pattern a320
The "Advanced" Sierra Pattern involves dirtying up the aircraft. You may be asked to decelerate to "S" speed, drop , and then Flaps 2 , all while maintaining the climb/descent profile. This tests your ability to compensate for the ballooning effect of flaps and the drag of the slats. Tips for Success in the A320 Use the "Bird" (FPV)
For instance, a might involve a straight climb at +1000 fpm, a 25° bank turn, and a return to a straight-and-level flight, requiring the pilot to maintain airspeed within a narrow window (e.g., ± 10-15 knots) A320 UPRT and Tutorial Flow Overview. Importance of Sierra Patterns in A320 Training
| Phase | Pilot Action | FMA (Flight Mode Annunciator) | | :--- | :--- | :--- | | | "Go Around, Flaps" (Select TO/GA detent) | LVR CLB flashes; SRS | GA TRK | | 2. Positive Climb | Call "Positive Rate" → Gear Up | SRS | GA TRK | | 3. Acceleration | At Thrust Reduction Alt (e.g., 1000’ AAL): - Check LVR CLB blue → Pull thrust to CL detent. | THR CLB | SRS | GA TRK | | 4. Transition | At Acceleration Alt (e.g., 1500’ AAL): - SRS automatically disconnects. - Select NAV or HDG as needed. - Retract flaps on schedule. | OP CLB | NAV (or HDG) | At the expiration of the 45-second timer, the
If your instructor allows it, switching to the makes the Sierra Pattern significantly easier. Instead of chasing pitch attitudes, you simply place the Bird on the desired flight path angle. However, true purists fly it using the "Crosshairs" (Flight Director OFF) to master raw-data flying. Memorize Your Power Settings The A320 is remarkably consistent. Level, Clean, 250kts: ~55% N1 Level, Flaps 1, S-Speed: ~45-48% N1 3-degree Descent: Roughly 5% less than level flight power. Small Corrections
Mastering the Sierra Pattern: The Ultimate Guide for A320 Pilots
The speed is further reduced toward the 'S' speed. The pilot commands "Flaps 2." Phase 3: The Climbing and Descending Turns The "Advanced" Sierra Pattern involves dirtying up the
The Sierra Pattern is a standardized, closed-loop flight profile used primarily in advanced flight simulators. It combines multiple flight phases—takeoff, precision turns, clean and dirty configurations, acceleration, deceleration, and approach—into a single, compact exercise.
[ PITFALL ] [ CORRECTION ] ───────────────────────────────────────────────────────────────────────────────── Chasing the Vertical Speed Indicator ──► Set pitch first on the PFD; (Causes pilot induced oscillations) verify performance on the VSI later. Over-controlling the Sidestick ──► Make a small input, release to neutral, (Fails to let Autotrim stabilize) and let the flight control laws work. Missed Lead-In Points on Altitudes ──► Always apply transition thrust/pitch (Leads to altitude busts) exactly 100 feet before the target.
Pilots often fixate on the airspeed tape during configuration changes, causing them to bust their target altitude. Maintain a robust radial scan: Attitude Indicator →right arrow →right arrow Attitude Indicator →right arrow
The pattern concludes with a level-off, followed by accelerating the aircraft, retracting the gear and flaps in sequence, and returning to clean, high-speed cruise flight. Key A320 Parameters for the Sierra Pattern
The primary risk of a mismanaged high-energy pattern is a runway overrun. If the aircraft crosses the threshold at Vref + 20 knots (common in rushed patterns), the stopping distance required increases significantly. The A320 brake system is effective, but carbon brake wear is accelerated, and the risk of fuse plug melting (tyre deflation) rises with high-energy rejected landings.