VI. Performance Maneuvers – Task B. Straight-In Autorotation in a Single-Engine Helicopter (Operational Requirements)

Objective

The student will demonstrate comprehensive understanding and safe execution of straight-in autorotations in a single-engine helicopter, meeting the operational requirements and limitations specified in the Commercial Pilot Helicopter ACS (CH.XIV.B), including proper entry altitude selection, touchdown within prescribed tolerances, and professional decision-making regarding go-around criteria versus forced completion.

Measurable Outcomes:

• Correctly identify minimum entry altitude requirements per ACS and explain conditions requiring higher entry altitudes
• Distinguish between acceptable go-around scenarios (safety concerns beyond applicant control) versus unacceptable go-around scenarios (inability to meet Task standards)
• Execute straight-in autorotations from appropriate entry altitudes with touchdown in the touchdown zone within ACS tolerances
• Demonstrate sound risk management decision-making regarding landing area safety versus Task completion

ACS Task Code: CH.XIV.B — Performance Maneuvers – Task B. Straight-In Autorotation in a Single-Engine Helicopter (Operational Requirements)

Content

Regulatory Framework and Operational Requirements

14 CFR 61.45(b) establishes that practical tests must be conducted in accordance with the applicable practical test standards or airman certification standards. For commercial helicopter applicants, this means strict adherence to the tolerances and operational requirements in FAA-S-ACS-16.

ACS Minimum Entry Altitude Requirement: The straight-in autorotation must be initiated from a minimum altitude of 500 feet AGL. This is not a suggestion—it is a firm operational requirement. Unlike practice autorotations where instructors may begin from various altitudes for training purposes, the ACS specifies 500 feet AGL as the floor for this evaluated maneuver.

Strong Wind Condition Considerations: The ACS explicitly states “or a suitable higher entry altitude in strong wind conditions.” This reflects the reality that higher groundspeeds in strong winds require additional energy management time and altitude for safe execution. As commercial pilots preparing for passenger-carrying operations, students must recognize when conditions warrant conservative altitude margins. “Strong wind conditions” is intentionally not numerically defined—professional judgment is required. However, practical guidance suggests that winds exceeding 15-20 knots, particularly with gusts or crosswind components, merit consideration of higher entry altitudes (600-700 feet AGL or more).

The reason for higher entry altitudes in wind relates to energy management during the flare. Stronger headwinds create greater groundspeed dissipation during the flare, which can lead to settling if the pilot doesn’t account for the rapid deceleration. Conversely, tailwind components (which should generally be avoided for autorotations) reduce the effectiveness of the flare. Additional altitude provides margin for these variables.

Go-Around Decision Criteria: Critical Distinctions

The ACS makes three crucial distinctions regarding go-around execution during this Task that directly impact the satisfactory/unsatisfactory determination:

1. Unsatisfactory Go-Around: “Initiating a go-around as a result of an applicant’s inability to complete this Task within the tolerances specified in the skill elements is considered unsatisfactory.”

This means if the applicant initiates a go-around because:

• They recognize they won’t touchdown in the touchdown zone
• Their approach angle is incorrect and won’t result in proper landing parameters
• They’ve mismanaged rotor RPM and cannot recover it within parameters
• They’ve allowed airspeed to deviate significantly and cannot correct before touchdown
• Any other pilot technique deficiency that prevents completing the maneuver

…the Task is automatically failed. This is harsh but reflects reality: in an actual engine failure, you don’t get a go-around option. The commercial pilot must demonstrate the precision and consistency to complete the autorotation successfully every time within tolerances.

2. Not Unsatisfactory (Acceptable Go-Around): “Landing area safety concerns beyond the control of the applicant or evaluator that necessitate a go-around would not be considered unsatisfactory.”

Examples include:

• An aircraft, vehicle, or animal entering the landing area during the approach
• Unexpected wind shear or significant turbulence on short final
• Discovery of previously undetected hazards (debris, obstruction) in the landing area
• Another aircraft creating a conflict or unsafe situation
• Equipment malfunction (actual mechanical issue, not pilot-induced)

These represent professional aeronautical decision-making. A commercial pilot who recognizes an unsafe condition and executes a go-around demonstrates good judgment, not incompetence. The key phrase is “beyond the control of the applicant or evaluator.”

3. Safety of Flight Paramount: “The applicant and evaluator must not sacrifice the safety of flight and force a landing to complete this Task.”

This is the overriding principle. If continuing the autorotation to touchdown creates an unsafe situation—even one resulting from the applicant’s technique deficiencies—safety takes priority. The examiner will command a go-around if necessary. However, this still results in an unsatisfactory Task if the reason was the applicant’s inability to perform within standards (see distinction #1 above).

Think of it this way: Safety always comes first, but that doesn’t make a poorly-executed maneuver “satisfactory” just because we salvaged it with a go-around. The commercial pilot must demonstrate both safety consciousness AND technical proficiency.

Straight-In Autorotation Technique Review (Commercial Standards)

Commercial applicants already hold private certificates and have demonstrated basic autorotation proficiency. The commercial standard demands precision, consistency, and professional execution. Review these elements with commercial tolerances:

Entry (500+ feet AGL):

• Immediate recognition of simulated engine failure (prompt throttle roll-off to simulate)
• Coordinated lowering of collective to maintain rotor RPM in green arc (or manufacturer limits)
• Simultaneous reduction in throttle to flight idle
• Application of appropriate pedal to maintain heading (left pedal in most helicopters due to loss of tail rotor thrust requirement)
• Airspeed established at manufacturer’s recommended autorotation speed ±5 knots
• Ground track aligned with intended landing area

Descent:

• Rotor RPM maintained within green arc (or manufacturer specifications)
• Airspeed maintained at recommended autorotation speed ±5 knots
• Rate of descent appropriate for wind conditions and distance to landing area
• Ground track maintained (minimal lateral drift)
• Continuous visual assessment of landing area and approach angle

Termination Sequence:

• Flare initiated at appropriate altitude (varies by helicopter type, typically 40-60 feet AGL)
• Aggressive aft cyclic to reduce groundspeed and rate of descent
• Rotor RPM managed to stay below redline during flare
• At appropriate point, cyclic brought forward to level the helicopter
• Collective raised smoothly and positively to cushion landing
• Pedals maintain heading alignment with ground track throughout

Commercial Standard Tolerances (for full touchdown):

• Touchdown in first third of selected touchdown zone
• Heading maintained ±10° of ground track
• Rotor RPM within green arc throughout (never redline, never droop below green)
• Airspeed maintained at recommended ±5 knots until beginning termination

Risk Management Elements

Entry Altitude Risk Assessment:

The 500-foot AGL minimum exists because it provides adequate time and altitude for:

• Recognition and reaction to the simulated emergency
• Establishment of proper autorotation parameters (RPM, airspeed, trim)
• Evaluation of wind conditions and approach angle
• Safe termination sequence with flare and landing

Lower entry altitudes compress decision-making time and reduce energy management options. While experienced instructors may demonstrate autorotations from lower altitudes in training, the ACS minimum recognizes that checkride stress, unfamiliar examiners, and performance pressure warrant conservative parameters.

Higher altitudes in strong winds provide:

• Additional time to assess wind effects on approach angle
• Greater margin for groundspeed management during flare
• More altitude to correct for wind-induced drift
• Reserve energy if flare effectiveness is reduced by wind conditions

Decision-Making: Completion vs. Safety:

Commercial helicopter pilots often operate in challenging environments: confined areas, remote locations, variable weather, external loads, passengers. The straight-in autorotation Task tests not just hands-and-feet skills but judgment under pressure.

The temptation on a checkride is to “force” the landing to avoid a disapproval. This is precisely the wrong mindset. The ACS framework teaches proper risk assessment:

• If YOUR TECHNIQUE is deficient → go-around is appropriate for safety BUT Task is unsatisfactory
• If EXTERNAL FACTORS create unsafe conditions → go-around is appropriate AND not unsatisfactory
• If you’re uncertain which category applies → err on the side of safety, execute the go-around, and accept the consequences

This mirrors real-world decision-making. A commercial pilot conducting an actual autorotation after engine failure doesn’t get credit for judgment—but on a checkride, we’re evaluating both technical skill AND decision-making. The ACS structure ensures both are tested appropriately.

Landing Area Assessment:

Before beginning any autorotation (practice or evaluated), conduct a thorough assessment:

• Obstructions in approach path and landing area
• Surface conditions (smoothness, slope, debris)
• Wind direction and velocity
• Escape routes if go-around becomes necessary
• Other traffic or activity in the area
• Adequate size for helicopter being flown

During the descent, continue monitoring for changes:

• Wind shifts (sock or other indicators)
• Traffic conflicts developing
• New hazards appearing in landing area
• Equipment malfunctions

The professional helicopter pilot maintains situational awareness throughout the maneuver, ready to execute a go-around if conditions warrant—but confident in their ability to complete the maneuver successfully when conditions are appropriate.

Instructional Considerations

As a commercial student, you’re expected to self-evaluate during maneuvers. Ask yourself:

• “Am I on the correct approach angle for my current wind conditions?”
• “Is my airspeed within tolerance?”
• “Is my RPM properly managed?”
• “Will I touch down in the first third of my intended area?”

If the answer to any of these is “no” and you cannot correct before touchdown, a go-around is the safe choice—but recognize that it indicates you haven’t yet achieved commercial standards for this Task.

The goal is consistent execution within tolerances every time. Random variation—sometimes perfect, sometimes requiring go-around—is not commercial proficiency. Commercial proficiency is predictable, repeatable precision.

Common Errors and Corrections

Entry altitude too low: Student attempts to begin autorotation below 500 feet AGL because “it feels like enough altitude.” Correction: Strict adherence to 500-foot minimum; use altimeter confirmation, not visual estimation.

Failure to recognize strong wind conditions: Student uses standard 500-foot entry in 20-knot winds with gusts. Correction: Brief wind conditions before flight; establish personal minimums (e.g., “winds over 15 knots = 600-foot entry minimum”).

Forcing a bad approach: Student recognizes they’re undershooting or overshooting but continues to touchdown “to complete the Task.” Correction: Emphasize that safety and proper technique trump Task completion; unsatisfactory maneuver is better than unsafe landing.

Misidentifying go-around cause: Student executes go-around due to their own airspeed or RPM mismanagement but claims “wind shift” as the reason. Correction: Honest self-assessment is critical; examiners recognize the difference between legitimate safety concerns and technique deficiencies.

Schedule

Total Time: 2:10 (can be adjusted based on student proficiency and facility availability)

Equipment

Required References:

• FAA-S-ACS-16, Commercial Pilot – Helicopter Airman Certification Standards (current edition)
• FAA-H-8083-21B, Helicopter Flying Handbook
• Pilot’s Operating Handbook (POH) for the specific helicopter being flown (autorotation airspeed, rotor RPM limits, emergency procedures)
• 14 CFR Part 61 (Subpart F – Commercial Pilots)

Training Materials:

• Whiteboard or tablet for diagram drawing
• Scenario cards depicting various go-around situations for discussion
• Wind condition calculator or rule-of-thumb reference for entry altitude adjustment
• Airport/Facility Directory or chart for practice area identification

Aircraft Requirements:

• Single-engine helicopter approved for autorotation training (per POH)
• Current weight and balance within autorotation limits
• All required instruments and equipment operational
• Adequate fuel for 2+ hours flight time with reserve

Visual Aids:

• Autorotation profile diagram showing entry, descent, and termination phases
• Decision tree: “Go-around satisfactory vs. unsatisfactory flowchart”
• Entry altitude vs. wind speed recommendation chart
• Video examples (if available) of proper and improper autorotation technique

Safety Equipment:

• Suitable autorotation practice area (per local procedures)
• Clear landing area with adequate size and surface conditions
• Communication with ATC or CTAF as appropriate
• Method for wind condition verification (ATIS, AWOS, visual wind indicators)

Instructor Actions

1. Pre-Flight Briefing Setup: Begin by asking the student to explain the minimum entry altitude requirement for straight-in autorotations on the commercial practical test. Listen for “500 feet AGL minimum” response. If student answers correctly, probe deeper: “When would you use a higher entry altitude?” Assess their understanding of wind condition impact.

2. Standards Clarification: Present the following scenario: “You’re on your checkride. You enter the autorotation at 500 feet as required. Halfway down, you realize your approach angle is too steep—you’re going to land 100 feet short of your intended touchdown zone. What do you do?” Allow student to respond. Regardless of answer, explain: “Let’s talk about what the ACS actually says about go-arounds in this Task.” Read verbatim from the ACS: “Initiating a go-around as a result of an applicant’s inability to complete this Task within the tolerances specified in the skill elements is considered unsatisfactory.”

3. Critical Distinction Discussion: Draw a two-column chart labeled “Unsatisfactory Go-Around” and “Not Unsatisfactory Go-Around.” Work with student to populate examples in each column. Guide them to understand that technique deficiencies (applicant’s fault) versus external safety factors (beyond applicant’s control) determine the outcome. Emphasize: “Your job is to fly the maneuver so well that you never need a go-around due to your technique. But if something happens that’s not your fault—an animal runs onto the field, unexpected turbulence, another aircraft conflict—executing a go-around shows good judgment, not poor skill.”

4. Wind Assessment Practice: Check current winds. If winds are light (under 10 knots), brief: “Today’s winds allow us to use the standard 500-foot entry altitude. But let’s talk about what we’d do differently if winds were 20 knots gusting 25.” If winds are strong, brief: “Notice our winds are [X knots]. Instead of the minimum 500 feet, we’re going to use [600-700] feet for our entry altitude. This gives us additional margin for the stronger flare effects and groundspeed management we’ll need.”

5. Landing Area Selection Brief: Before departing, have student identify on a chart or from memory where you’ll conduct autorotations. Ask: “What makes that area suitable? What hazards do we need to brief?” Listen for: adequate size, suitable surface, escape routes, wind indicators, obstructions, other traffic. Add any items student misses: “Remember, we need to assess both the approach path and the landing area itself.”

6. Demonstration Brief: “I’m going to demonstrate one straight-in autorotation meeting commercial standards. I want you to monitor several things: First, watch the altimeter as I initiate—confirm we’re at or above 500 feet AGL when I roll off throttle. Second, watch airspeed during descent—it should stay within 5 knots of our recommended autorotation speed. Third, watch RPM—it stays in the green arc throughout. Fourth, watch our ground track and where we touch down—first third of the touchdown zone. I’ll narrate what I’m thinking and doing.”

7. Demonstration Execution: Climb to appropriate entry altitude (500 feet AGL minimum or higher based on winds). Establish helicopter in trimmed flight. Announce: “500 feet AGL, beginning autorotation now.” Smoothly roll off throttle while simultaneously lowering collective to maintain RPM. Apply left pedal to maintain heading. Establish recommended autorotation airspeed. Narrate: “Throttle flight idle, collective down, rotor RPM [X RPM] in the green, airspeed [X knots], ground track aligned with landing area.” During descent, continue narrating: “Monitoring RPM, maintaining recommended airspeed, evaluating approach angle—I’m on profile for touchdown in the first third of my zone.” Execute appropriate flare: “Beginning flare now, aft cyclic, managing RPM—watching for redline—groundspeed decreasing.” Level helicopter: “Leveling, collective coming up.” Execute touchdown or power recovery per briefing: “Collective full up, cushioning touchdown” or “Power applied, positive rate, returning to altitude.”

8. Student Practice Coaching – First Attempt: “You’ve got the flight controls. Set up for entry at 500 feet AGL [or higher if briefed]. When you’re ready, execute the autorotation—I’ll follow on the controls.” As student begins, monitor for immediate errors: delayed collective reduction (RPM droop), excessive collective reduction (RPM overspeed), inadequate left pedal (heading change), improper airspeed. Provide real-time coaching: “Collective down sooner to catch the RPM” or “More left pedal to hold your heading” or “Airspeed is high—nose up slightly.” As student descends, monitor approach angle: “Check your aim point—are you on track for the first third of your zone?” If student is significantly off parameters, command: “Power recovery, I have the controls” and debrief what went wrong.

9. Progressive Evaluation: After each repetition, debrief specific performance: “Your entry was good—500 feet confirmed, RPM stayed in the green. During descent, your airspeed wandered from [X] to [Y]—that’s outside the ±5 knot tolerance. What will you do differently next time?” Or: “Your approach angle was too shallow—you would have overshot the touchdown zone. If this were your checkride and you recognized that halfway down, what’s your decision?” Probe student’s understanding: If they say “go-around,” ask: “And what would the result be?” Listen for: “Unsatisfactory for the Task because it was my technique error, not an external safety factor.”

10. Scenario-Based Decision Training: Between practice autorotations, pose scenarios: “Halfway down your approach, you see a deer run into your landing area. What do you do?” (Go-around, not unsatisfactory—external factor.) “You’re 100 feet AGL and recognize your RPM is below the green arc and you can’t recover it before touchdown. What do you do?” (Power recovery/go-around, but unsatisfactory—technique deficiency.) “You’re on a perfect approach but at 50 feet you hit unexpected turbulence that pushes you off heading by 20 degrees. What do you do?” (This is judgment call—can you correct? If not, go-around is defensible as external factor; discuss with student.)

11. Full Touchdown Progression: Once student demonstrates consistent parameters during power recoveries (3-4 successful repetitions within ACS standards), brief: “Your next autorotation, if everything is within parameters and the landing area is clear, we’ll complete it to touchdown. Remember: don’t force it. If at any point you’re not within tolerances and can’t correct, power recovery. Safety first, even if it means we don’t get the full touchdown today.” This removes pressure while maintaining standards.

12. ACS-Standard Evaluation: “This one is as if I’m your examiner. I’m going to be quiet unless there’s a safety issue. You’ll perform a straight-in autorotation from appropriate entry altitude to touchdown, meeting all commercial standards. Before you begin, tell me: What altitude will you enter from and why? What are your personal criteria for executing a go-around?” After student briefs, observe silently (unless safety intervention required). Take notes on performance for detailed debrief.

13. Real-Time Safety Intervention (if required): If student creates unsafe situation (RPM critically low, severe undershoot/overshoot, loss of control, heading deviation, or any condition threatening safe recovery), immediately command: “Power recovery, I have the controls.” Do not allow unsafe continuation just to complete the Task. After recovery, debrief: “What happened? What did you observe? What would you do differently?” Ensure student understands this would be unsatisfactory on checkride, but safety was correct priority.

14. Post-Flight Debrief Structure: Begin with student self-assessment: “How do you think you performed against the ACS standards for this Task?” Listen for specific, measurable self-critique. Then provide instructor assessment using ACS elements: “Entry altitude: You consistently entered at [X feet], which meets/exceeds the 500-foot minimum. Airspeed control: Repetition 1 was [X] knots, outside tolerance; repetitions 2 and 3 were within ±5 knots—good improvement. RPM management: All repetitions kept RPM in the green arc. Touchdown accuracy: [Evaluate based on touchdown zone performance].” Address any go-around decisions made: “When you executed the go-around on repetition 2, you correctly identified that your approach angle would result in an overshoot. On a checkride, what would that outcome be?” Confirm student understanding: “Unsatisfactory because it was your approach angle management, not an external safety factor.”

15. Readiness Assessment: Conclude by asking: “Do you feel you understand the operational requirements and can consistently perform this Task within ACS standards?” If yes: “What specific elements will you focus on to ensure checkride success?” If no: “What areas need more practice?” Schedule additional training as needed. Emphasize: “Commercial standard means you can do this right, every time, within tolerances. On your checkride, you’ll likely perform one or two of these. Both need to be within standards. That means your personal training standard should be higher—99% success rate, not 70%.”

Student Actions

1. Pre-Flight Knowledge Demonstration: Student articulates the minimum entry altitude requirement (500 feet AGL) and explains when higher entry altitudes are appropriate (strong wind conditions). Student distinguishes between go-around scenarios that are unsatisfactory (technique deficiencies) versus not unsatisfactory (external safety factors beyond control).

2. Landing Area Assessment: Student evaluates the designated autorotation practice area for suitability, identifying: surface conditions, obstructions in approach path and landing area, wind indicators, touchdown zone dimensions, and escape routes for go-around. Student verifies area meets requirements for safe autorotation practice.

3. Entry Altitude Determination: Based on current wind conditions briefed by instructor or observed from wind indicators, student determines appropriate entry altitude (minimum 500 feet AGL, higher if winds warrant). Student explains reasoning: “Winds are currently [X] knots, so I’ll enter at [Y] feet AGL because…”

4. Demonstration Observation: During instructor demonstration, student monitors and confirms: entry altitude at/above 500 feet AGL (calls out altimeter reading), airspeed maintained within tolerance during descent, rotor RPM in green arc throughout, approach angle resulting in touchdown within first third of touchdown zone. Student asks clarifying questions about techniques observed.

5. Maneuver Execution – Entry: Student climbs to predetermined entry altitude and stabilizes helicopter in trimmed flight. At minimum 500 feet AGL (confirmed by altimeter), student initiates autorotation by: smoothly rolling off throttle to flight idle, simultaneously lowering collective to maintain rotor RPM in green arc, applying appropriate left pedal to maintain heading, establishing manufacturer’s recommended autorotation airspeed (±5 knots).

6. Maneuver Execution – Descent: Student maintains autorotation parameters throughout descent: rotor RPM in green arc, airspeed at recommended ±5 knots, ground track aligned with intended landing area. Student continuously evaluates approach angle by checking aim point against intended touchdown zone. Student makes control inputs to correct deviations while maintaining primary parameters.

7. Maneuver Execution – Termination: At appropriate altitude (per helicopter type and conditions), student executes termination sequence: applies aft cyclic to initiate flare, manages rotor RPM to prevent redline during flare energy storage, levels helicopter at appropriate point, applies collective smoothly and progressively to cushion landing or (during practice) applies power for recovery at instructor-specified altitude.

8. Decision-Making Application: If student recognizes during the maneuver that they cannot complete it within ACS tolerances (approach angle incorrect, airspeed/RPM deviation uncorrectable, landing area conflict), student announces decision: “Power recovery” or “Go-around” and executes safe recovery. Student does not attempt to force completion when parameters are outside limits.

9. Self-Assessment: After each repetition, student evaluates own performance against ACS standards: “My entry altitude was [X] feet, which meets requirements. My airspeed varied from [X] to [Y] knots—the [Y] was outside the ±5 knot tolerance. My RPM stayed in the green arc. My touchdown was [location in touchdown zone].” Student identifies specific errors and corrective actions for next attempt.

10. Scenario Response: When instructor poses go-around scenarios, student analyzes and responds: “That would be a go-around that’s not unsatisfactory because [reason—external factor beyond control]” or “That would be a go-around that’s unsatisfactory because [reason—my technique deficiency].” Student demonstrates understanding of ACS distinction between acceptable and unacceptable go-around criteria.

11. Progressive Performance Improvement: Student incorporates coaching from previous repetitions, demonstrating improvement in: entry altitude consistency, airspeed control precision, RPM management, approach angle evaluation, and touchdown accuracy. Student achieves consistent performance within ACS tolerances over multiple repetitions (minimum 3-4 successful completions).

12. Full Touchdown Demonstration: When proficiency warrants and instructor approves, student performs straight-in autorotation from appropriate entry altitude to full touchdown, meeting all ACS performance standards: entry at minimum 500 feet AGL, airspeed within tolerance throughout descent, RPM in green arc, touchdown in first third of touchdown zone, heading maintained within ±10° of ground track.

13. Post-Flight Debrief Participation: Student reviews performance against each ACS element: knowledge of entry altitude requirements, risk management decisions made, skill performance tolerances achieved. Student honestly assesses readiness for checkride performance: areas of strength, areas requiring additional practice, confidence level in meeting standards consistently.

14. Standards Verbalization: Student articulates completion standards in own words: “On the checkride, I must enter at minimum 500 feet AGL, or higher if winds are strong. I must complete the autorotation without a go-around due to my technique being off. If I do go around because I can’t meet the standards, that’s unsatisfactory. But if I go around because something unsafe happens that’s not my fault, that’s not unsatisfactory. I can’t force an unsafe landing just to complete the Task.”

15. Commitment to Precision: Student expresses understanding that commercial standard requires consistent, repeatable performance within tolerances, not occasional success. Student commits to personal minimums that exceed ACS requirements during training to ensure checkride readiness.

Completion Standards

The lesson is complete when the student demonstrates comprehensive understanding and consistent performance meeting the Commercial Pilot Helicopter ACS standards for CH.XIV.B, as evidenced by:

Knowledge Standards (Oral/Ground Evaluation):

• Correctly states the minimum entry altitude requirement: 500 feet AGL
• Explains when higher entry altitudes are appropriate: strong wind conditions (provides reasonable wind speed threshold, e.g., winds over 15 knots, gusts, or significant crosswind components)
• Accurately distinguishes between unsatisfactory go-around (inability to complete Task within tolerances due to applicant’s technique) and not unsatisfactory go-around (landing area safety concerns beyond applicant or evaluator control)
• Articulates the principle that safety of flight must never be sacrificed to force a landing completion
• Identifies specific examples of external safety factors that would justify a go-around without unsatisfactory determination (animal in landing area, unexpected wind shear, traffic conflict, mechanical malfunction)
• Explains why forcing a landing when outside ACS tolerances is both unsafe and unprofessional

Risk Management Standards (Demonstrated Judgment):

• Selects entry altitude of at least 500 feet AGL in normal wind conditions
• Selects higher entry altitude when winds exceed personal minimums (e.g., 600+ feet AGL when winds are strong)
• Conducts thorough landing area assessment before initiating autorotation: surface conditions, obstructions, wind direction, traffic, escape routes
• Monitors landing area throughout descent for changing conditions or new hazards
• Makes timely go-around decisions when external safety factors arise (does not hesitate or delay)
• Refuses to force completion of maneuver when parameters are outside tolerances and safety would be compromised
• Demonstrates honest self-assessment: accurately identifies when performance deficiencies (own technique) versus external factors (beyond control) necessitate go-around

Skill Standards (Flight Performance per ACS CH.XIV.B):

• Enters autorotation at minimum 500 feet AGL, confirmed by altimeter (or higher altitude if conditions warrant)
• Completes autorotation to touchdown within the following tolerances:
  • Rotor RPM maintained within manufacturer’s green arc (or specified limits) throughout entire maneuver—entry, descent, flare, and touchdown
  • Airspeed maintained at manufacturer’s recommended autorotation airspeed ±5 knots during descent phase
  • Ground track maintained with minimal lateral drift
  • Heading maintained ±10° of ground track throughout maneuver
  • Touchdown accomplished in first third of selected touchdown zone
  • Touchdown accomplished without exceeding structural limitations of helicopter (normal landing, not hard landing)
• Demonstrates smooth, coordinated control inputs throughout all phases
• Executes proper flare at appropriate altitude for helicopter type and wind conditions
• Applies collective smoothly and progressively during touchdown to cushion landing
• Completes entire maneuver without necessitating a go-around due to inability to meet Task standards (technique deficiency)

Consistency Requirement:

Student performs minimum three consecutive straight-in autorotations (power recoveries and/or full touchdowns as conditions and proficiency allow) meeting all above standards without instructor intervention, demonstrating repeatable precision expected at commercial pilot level.

Unsatisfactory Performance Indicators:

Any of the following constitute unsatisfactory performance and require additional training:

• Entry altitude below 500 feet AGL in normal conditions
• Entry altitude at only 500 feet when wind conditions clearly warrant higher altitude
• Rotor RPM exceeds redline at any point during maneuver
• Rotor RPM drops below green arc and cannot be recovered before requiring power application
• Airspeed deviates more than ±5 knots from recommended during descent and cannot be corrected
• Heading deviates more than 10° from ground track and is not corrected
• Touchdown occurs outside first third of touchdown zone (overshoot or undershoot)
• Hard landing or touchdown exceeding structural limits
• Execution of go-around due to applicant’s technique deficiencies (approach angle incorrect, airspeed/RPM unrecoverable, inability to land in touchdown zone)
• Inability to distinguish between acceptable and unacceptable go-around scenarios
• Attempting to force landing when parameters are clearly outside tolerances

Checkride Readiness Indicators:

Student is ready for practical test evaluation when they:

• Verbalize complete understanding of all ACS knowledge elements without prompting
• Demonstrate sound risk management decision-making in scenario-based discussions
• Perform 5+ consecutive autorotations (mix of power recoveries and full touchdowns) within all ACS tolerances without instructor coaching or intervention
• Self-identify deviations accurately and make appropriate go-around decisions
• Execute go-arounds smoothly and safely when external factors warrant
• Express confidence in ability to perform maneuver to ACS standards under checkride pressure
• Demonstrate professional attitude toward precision and safety

FAA References for Completion Standards:

• FAA-S-ACS-16, Area of Operation XIV, Task B (CH.XIV.B)
• FAA-H-8083-21B, Helicopter Flying Handbook, Chapter 11 (Autorotations)
• Pilot’s Operating Handbook for aircraft flown (autorotation procedures and limitations)