AI.IX.FFAA-S-ACS-25 · Nov 2023
Eights on Pylons (ASEL, ASES)
To determine the applicant understands eights on pylons, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.
Bottom line
The altitude that is appropriate for eights on pylons is called the “pivotal altitude” and is determined by the airplane's groundspeed. The pivotal altitude is the altitude at which, for a given groundspeed, the projection of the visual reference line to the pylon appears to pivot.
FAA references
- AFH ch. 7 (pp. 7-15–7-16) — FAA-H-8083-3C
Knowledge
- AI.IX.F.K1: Purpose of and procedures for eights on pylons.
- AI.IX.F.K2: Aerodynamics associated with the eights on pylons, including coordinated and uncoordinated flight.
- AI.IX.F.K3: Pivotal altitude and factors that affect it.
- AI.IX.F.K4: Effect of wind on ground track.
- AI.IX.F.K5: Phases of the eights on pylons maneuver from entry to recovery.
- AI.IX.F.K6: Common errors related to this Task.
Risk management
- AI.IX.F.R1: Division of attention between aircraft control and orientation.
- AI.IX.F.R2: Collision hazards.
- AI.IX.F.R3: Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).
- AI.IX.F.R4: Distractions, task prioritization, loss of situational awareness, or disorientation.
- AI.IX.F.R5: Uncoordinated flight.
- AI.IX.F.R6: Energy management.
- AI.IX.F.R7: Emergency landing considerations.
Skills
- AI.IX.F.S1: Clear the area.
- AI.IX.F.S2: Determine the approximate pivotal altitude.
- AI.IX.F.S3: Select suitable pylons that permits straight-and-level flight between the pylons.
- AI.IX.F.S4: Enter the maneuver in the correct direction and position using an appropriate altitude and airspeed.
- AI.IX.F.S5: Establish the correct bank angle for the conditions, not to exceed 40°.
- AI.IX.F.S6: Apply smooth and continuous corrections so that the line-of-sight reference line remains on the pylon.
- AI.IX.F.S7: Divide attention between accurate, coordinated airplane control and outside visual references.
- AI.IX.F.S8: Maintain pylon position using appropriate pivotal altitude, avoiding slips and skids.
- AI.IX.F.S9: Analyze and correct common errors related to this Task. Note: For single-engine, the evaluator must select Task A or B; Task C, D, or E; Tas
Build understanding you can use
Unlock the full lesson and continue studying this element.
- Full teaching sections: Task bottom line
- Check your understanding with answers you can reveal