Airman Certification Standards
ACS CA.V.E
Eights on Pylons (ASEL, ASES)
Knowledge
Purpose of eights on pylons.
Aerodynamics associated with the eights on pylons, including coordinated and uncoordinated flight.
Pivotal altitude and factors that affect it.
Effect of wind on ground track.
Phases of the eights on pylons maneuver from entry to recovery.
Risk Management
Division of attention between aircraft control and orientation.
Collision hazards.
Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).
Distractions, task prioritization, loss of situational awareness, or disorientation.
Uncoordinated flight.
Energy management.
Emergency landing considerations.
Skill
Clear the area.
Determine the approximate pivotal altitude.
Select suitable pylons that permits straight-and-level flight between the pylons.
Enter the maneuver in the correct direction and position using an appropriate altitude and airspeed.
Establish the correct bank angle for the conditions, not to exceed 40°.
Apply smooth and continuous corrections so that the line-of-sight reference line remains on the pylon.
Divide attention between accurate, coordinated airplane control and outside visual references.
Maintain pylon position using appropriate pivotal altitude, avoiding slips and skids. 41
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