✈️ Aviation Brief — Issue #16
Weekly insights for student pilots and the instructors who train them.
THIS WEEK'S TOPIC
CA.V.A — Chandelles (Commercial ACS)
### 1. ACS STANDARDS SUMMARY
From the FAA Commercial Pilot ACS (CA.V.A — Chandelles), the applicant must demonstrate the ability to perform a chandelle that results in a smooth, coordinated 180-degree turn from a shallow bank through a steep bank (reaching 30 degrees at the 90-degree point of turn), while progressively exchanging bank for pitch to attain the targeted altitude with the wings level at completion. The maneuver requires constant airspeed reduction, no stall warning, precise altitude control (±100 feet), heading (±10 degrees from entry), and coordinated flight throughout (ball ±10 percent throughout, no exceedance of maneuvering speed). The examiner expects smooth control inputs, positive aircraft control, and clear risk management, such as scanning for traffic and maintaining situational awareness.
### 2. THREE COMMON STUDENT MISTAKES
- **Insufficient or late bank at the 90-degree point**: Students often peak below 30 degrees of bank halfway through the turn, resulting in an incomplete exchange of bank for pitch and drifting past the 180-degree heading.
- **Allowing sideslip or uncoordinated flight**: Many pilots fixate on pitch and bank without cross-checking the ball, leading to slipping or skidding turns that score low on coordination and create uncomfortable yaw forces.
- **Premature airspeed loss or stall buffet**: Rushing the pitch-up too aggressively early in the maneuver causes the nose to balloon slowly at first then drop speed rapidly, triggering stall warnings before reaching the targeted altitude.
### 3. CFI PRO TIP
"Use the 'clock face' visualization: Picture your entry heading at 12 o'clock—hit exactly 30 degrees of bank at 3 o'clock (90 degrees of turn), then smoothly trade that bank for pitch so you're wings-level with full nose-high attitude by 6 o'clock (180 degrees). Practice calling out 'banking... peaking... pitching... leveling' to build muscle memory and keep your eyes outside scanning the horizon."
### 4. SAFETY SPOTLIGHT
In a 2019 NTSB accident (CEN19FA128), a commercial pilot candidate practicing chandelles in a Cessna 172 near Las Vegas lost control during the pitch-up phase due to uncoordinated flight and excessive bank, leading to a spin entry from 2,500 feet that resulted in substantial aircraft damage but no fatalities. This highlights a pattern in ASRS reports where chandelle stalls during training often stem from poor bank-pitch coordination, emphasizing the need for altitude buffers (at least 1,500 feet AGL) and immediate recovery priorities to prevent low-altitude loss of control.
### 5. DID YOU KNOW
The chandelle maneuver gets its name from the French word for "candle," inspired by the smooth, climbing flame path of a lit candle—perfectly describing the ideal trajectory of trading bank for pitch in a precise 180-degree turn. It's a staple commercial requirement to prove the coordination you'll need for real-world maneuvers like evasive turns or traffic pattern adjustments.
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