AI.IX.BFAA-S-ACS-25 · Nov 2023
Steep Spiral (ASEL, ASES)
To determine the applicant understands steep spirals, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.
Bottom line
The pilot may use any combination of normal gliding maneuvers, from wings level to spirals to eventually arrive at the normal key position at a normal traffic pattern altitude for the selected landing area.
FAA references
- PHAK ch. 5 (p. 5-20) — FAA-H-8083-25C (2023)
- AFH ch. 9 (p. 9-28) — FAA-H-8083-3C
- PHAK ch. 5 (p. 5-35) — FAA-H-8083-25C (2023)
Knowledge
- AI.IX.B.K1: Purpose of and procedures for a proper steep spiral.
- AI.IX.B.K2: Relationship to emergency landing procedures.
- AI.IX.B.K3: Maintaining a constant radius about a point.
- AI.IX.B.K4: Effects of wind on ground track and relation to a ground reference.
- AI.IX.B.K5: Common errors related to this Task.
Risk management
- AI.IX.B.R1: Division of attention between aircraft control and orientation.
- AI.IX.B.R2: Collision hazards.
- AI.IX.B.R3: Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).
- AI.IX.B.R4: Distractions, task prioritization, loss of situational awareness, or disorientation.
- AI.IX.B.R5: Uncoordinated flight.
- AI.IX.B.R6: Effects of wind.
- AI.IX.B.R7: Airframe or airspeed limitations.
Skills
- AI.IX.B.S1: Clear the area.
- AI.IX.B.S2: Select an altitude sufficient to continue through a series of at least three, 360° turns.
- AI.IX.B.S3: Establish and maintain a steep spiral, not to exceed 60° angle of bank, to maintain a constant radius about a suitable ground reference poin
- AI.IX.B.S4: Apply wind-drift correction to track a constant radius circle around selected reference point with bank not to exceed 60° a steepest point i
- AI.IX.B.S5: Divide attention between airplane control, traffic avoidance and the ground track while maintaining coordinated flight.
- AI.IX.B.S6: Maintain the specified airspeed, ±10 knots and roll out toward an object or specified heading, ±10°, and complete the maneuver no lower than
- AI.IX.B.S7: Analyze and correct common errors related to this Task.
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