Objective: To develop the coordination, orientation, planning, and accuracy of control during maximum performance flight.
Instructor Actions: Review this maneuver with student on ground prior to flight and explain and demonstrate the maneuver for the student toward the beginning of the flight. Then continue following the Demonstration-Performance Training Method (Explanation, Demonstration, Student Performance/Instructor Supervision, Evaluation). Or use the Telling and Doing Technique (Instructor Tells-Instructor Does, Student Tells-Instructor Does, Students Tells-Student Does).
Student Actions: Student will answer questions to display knowledge of this maneuver when prompted by the instructor. The student will perform each step of the maneuver. If the Telling and Doing Technique is used then the student will also “tell” (describe each step of) the maneuver.
Elements:
- a chandelle is a maximum performance climbing turn beginning from approximately straight-and-level flight, and ending at the completion of a precise 180° turn in a wings-level, nose-high attitude at the minimum controllable airspeed
- first, select an altitude that will allow the task to be performed no lower than 1,500’ AGL
- clear the area (using a total of 180° of turn)
- set up for entry (power to cruise, airspeed at recommended speed, not to exceed maneuvering speed)
- choose reference points (90° and 180° points)
- begin maneuver by entering turn with bank approximately 30°
- after bank angle is established begin climb by increasing pitch attitude at a constant rate, and simultaneously increasing power to full throttle so that red line is not exceeded in a airplanes with fixed-pitch propellers (in airplanes with constant-speed propellers, power may be left at the normal cruise setting).
- maximum pitch attitude should be reached at the 90° point
- begin (a coordinated constant rate) bank rollout at the 90° point, while holding pitch constant until the 180° point
- completes rollout at the 180° point +/- 10° just above stall speed, with 0° of bank, should hear stall horn (maintain that attitude momentarily avoiding a stall)
- resume straight and level flight with minimum loss of altitude (smoothly release back pressure, and reduce power (in airplanes with fixed pitch propellers) so as not to exceed RPM red line.
Common Errors:
- not using enough right rudder (gradually applied) toward the top of the 180° turn to counteract torque
- slipping/skidding
- failure to scan for traffic
- control roughness
- too steep an initial bank, resulting in stall before the 180° point
- attempting to perform the maneuver by instrument, rather than visual reference
- allowing pitch to change after the 90° point
- Nose low on recovery resulting into much altitude loss
- allowing bank to change before the 90° point
- not changing pitch before the 90° point
- not changing bank after the 90° point
Completion Standards: The lesson is complete when the student is able to demonstrate knowledge of the maneuver by answering questions and by satisfactory performance of the maneuver according to the expectations of the instructor based upon the standards of the PTS for the student’s stage in training.
Sources: AFH (2004 edition), 9-4, through 9-5, figure 9-3. Commercial PTS (Effective August 1, 2002), 1-24. AIH (2009 edition), 8-6 through 8-8.