Flight Instructor for Powered-Lift CategoryFAA-S-ACS-27
Area of Operation XII
Slow Flight and Stalls
4 Tasks
Task A Maneuvering During Slow Flight (Wing-Borne Configuration)
References
FAA-H-8083-2, FAA-H-8083-9, FAA-H-8083-25; Flight Manual
Objective
To determine the applicant understands maneuvering during slow flight in wing-borne configuration, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.
Note
See Appendix 2: Safety of Flight and Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.
Knowledge
Purpose of and procedures for proper slow flight.
Aerodynamics associated with slow flight in various aircraft configurations, including the relationship between angle of attack, airspeed, load factor, power setting, aircraft weight and center of gravity, aircraft attitude, and yaw effects.
Common errors related to this Task.
Risk Management
Inadvertent slow flight and flight with a stall warning, which could lead to loss of control.
Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, etc.).
Uncoordinated flight.
Effect of environmental elements on aircraft performance (e.g., turbulence, microbursts, and high density altitude).
Collision hazards.
Distractions, task prioritization, loss of situational awareness, or disorientation.
Skills
Clear the area.
Select an entry altitude that allows the Task to be completed no lower than 3,000 feet above ground level (AGL).
Establish and maintain an airspeed at which any further increase in angle of attack, increase in load factor, or reduction in power, would result in a stall warning (e.g., aircraft buffet, stall horn, etc.).
Accomplish coordinated straight-and-level flight, turns, climbs, and descents with the aircraft configured as specified by the evaluator without a stall warning (e.g., aircraft buffet, stall horn, etc.).
Maintain the specified altitude, ±50 feet; specified heading, ±10°; airspeed, +5/-0 knots; and specified angle of bank, ±5°.
Analyze and correct common errors related to this Task.
Task B Power-Off Stalls
References
AC 61-67; FAA-H-8083-2, FAA-H-8083-9, FAA-H-8083-25; Flight Manual
Objective
To determine the applicant understands power-off stalls, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.
Note
See Appendix 2: Safety of Flight and Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.
Knowledge
Purpose of and procedures for power-off stalls.
Aerodynamics associated with stalls in various aircraft configurations, including the relationship between angle of attack, airspeed, load factor, power setting, aircraft weight and center of gravity, aircraft attitude, and yaw effects.
Stall characteristics as they relate to aircraft design, and recognition impending stall and full stall indications using sight, sound, or feel.
Factors and situations that can lead to a power-off stall and actions that can be taken to prevent it.
Fundamentals of stall recovery.
Common errors related to this Task.
Risk Management
Factors and situations that could lead to an inadvertent power-off stall, spin, and loss of control.
Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, etc.).
Stall warning(s) during normal operations.
Stall recovery procedure.
Secondary and accelerated stalls.
Effect of environmental elements on aircraft performance related to power-off stalls (e.g., turbulence, microbursts, and high-density altitude).
Collision hazards.
Distractions, task prioritization, loss of situational awareness, or disorientation.
Skills
Clear the area.
Select an entry altitude that allows the Task to be completed no lower than 3,000 feet AGL or as recommended by the manufacturer, whichever is higher.
Configure the aircraft in the approach or landing configuration, as specified by the evaluator, and maintain coordinated flight throughout the maneuver.
Establish a stabilized descent.
Transition smoothly from the approach or landing attitude to a pitch attitude that induces a stall.
Maintain a specified heading, ±10° if in straight flight; maintain a specified angle of bank not to exceed 20°, ±5°, if in turning flight, until an impending or full stall occurs, as specified by the evaluator.
Acknowledge the cues at the first indication of a stall (e.g., aircraft buffet, stall horn, etc.).
Recover at the first indication of a stall or after a full stall has occurred, as specified by the evaluator.
Configure the aircraft as recommended by the manufacturer and accelerate to VX or VY.
Return to the altitude, heading, and airspeed specified by the evaluator.
Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate.
Analyze and correct common errors related to this Task.
Task C Power-On Stalls
References
AC 61-67; FAA-H-8083-2, FAA-H-8083-9, FAA-H-8083-25; Flight Manual
Objective
To determine the applicant understands power-on stalls, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.
Note
See Appendix 2: Safety of Flight and Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.
Knowledge
Purpose of and procedures for power-on stalls.
Aerodynamics associated with stalls in various aircraft configurations, including the relationship between angle of attack, airspeed, load factor, power setting, aircraft weight and center of gravity, aircraft attitude, and yaw effects.
Stall characteristics as they relate to aircraft design, and recognition impending stall and full stall indications using sight, sound, or feel.
Factors and situations that can lead to a power-on stall and actions that can be taken to prevent it.
Fundamentals of stall recovery.
Common errors related to this Task.
Risk Management
Factors and situations that could lead to an inadvertent power-on stall, spin, and loss of control.
Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, etc.).
Pitch attitude limitations.
Stall warning(s) during normal operations.
Stall recovery procedure.
Secondary stalls and accelerated stalls.
Effect of environmental elements on aircraft performance related to power-on stalls (e.g., turbulence, microbursts, and high-density altitude).
Collision hazards.
Distractions, task prioritization, loss of situational awareness, or disorientation.
Skills
Clear the area.
Select an entry altitude that allows the Task to be completed no lower than 3,000 feet AGL or as recommended by the manufacturer, whichever is higher.
Establish the takeoff, departure, or wing-borne configuration, as specified by the evaluator, and maintain coordinated flight throughout the maneuver.
Transition smoothly from the takeoff or departure attitude to the pitch attitude that would induce a stall.
Maintain a specified heading ±10° if in straight flight; maintain a specified angle of bank not to exceed 20°, ±10° if in turning flight, until an impending or full stall is reached, as specified by the evaluator.
Acknowledge the cues at the first indication of a stall (e.g., aircraft buffet, stall horn, etc.).
Recover at the first indication of a stall or after a full stall has occurred, as specified by the evaluator.
Configure the aircraft as recommended by the manufacturer and accelerate to VX or VY.
Return to the altitude, heading, and airspeed specified by the evaluator.
Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate.
Analyze and correct common errors related to this Task.
Task D Accelerated Stalls
References
AC 61-67; FAA-H-8083-2, FAA-H-8083-9, FAA-H-8083-25; Flight Manual
Objective
To determine the applicant understands accelerated stalls (power-on and power-off), can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.
Note
See Appendix 2: Safety of Flight and Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.
Knowledge
Purpose of and procedures for accelerated stalls.
Aerodynamics associated with stalls in various aircraft configurations, including the relationship between angle of attack, airspeed, load factor, power setting, aircraft weight and center of gravity, aircraft attitude, and yaw effects.
Stall characteristics as they relate to aircraft design, and recognition impending stall and full stall indications using sight, sound, or feel.
Factors leading to an accelerated stall and preventive actions.
Fundamentals of stall recovery.
Common errors related to this Task.
Risk Management
Factors and situations that could lead to an inadvertent accelerated stall, spin, and loss of control.
Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, etc.).
Stall warning(s) during normal operations.
Stall recovery procedure.
Secondary stalls and accelerated stalls.
Effect of environmental elements on aircraft performance related to power-on stalls (e.g., turbulence, microbursts, and high-density altitude).
Collision hazards.
Distractions, task prioritization, loss of situational awareness, or disorientation.
Skills
Clear the area.
Select an entry altitude that allows the Task to be completed no lower than 3,000 feet AGL or as recommended by the manufacturer, whichever is higher.
Establish the takeoff, departure, or wing-borne configuration, as specified by the evaluator, and maintain coordinated flight throughout the maneuver.
Set power as assigned by the evaluator.
Establish and maintain a coordinated turn in a 45° bank (or as limited by the manufacturer), increasing elevator back pressure smoothly and firmly until an impending stall is reached.
Acknowledge the cues at the first indication of a stall (e.g., aircraft buffet, stall horn, etc.).
Recover at the first indication of a stall.
Configure the aircraft as recommended by the manufacturer and accelerate to VX or VY.
Return to the altitude, heading, and airspeed specified by the evaluator.
Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate.
Analyze and correct common errors related to this Task.