Go-Around (partial - risk management and skills only)

Objective

The commercial helicopter student will demonstrate the ability to recognize the need for and execute a safe go-around from any approach profile, maintaining powerplant and rotor rpm within normal limits, establishing a positive rate of climb with airspeed within ±5 knots of the target, and using proper collision avoidance, communication, and runway incursion avoidance procedures as prescribed in 14 CFR Part 91 and the Commercial Pilot Helicopter ACS Task CH.VII.A.

Content

Go-Around Decision Making and Recognition

A go-around is a critical safety maneuver that terminates an unstable or unsafe approach by transitioning to a climb and repositioning for another attempt or alternate action. Commercial pilots must recognize that the decision to go around is not a failure—it demonstrates sound aeronautical decision-making and professional judgment.

When to Execute a Go-Around:

• Unstable approach parameters (excessive rate of descent, airspeed deviations, improper alignment)
• Obstacles or hazards on the intended landing area (vehicles, personnel, wildlife, debris)
• Wind shear, microburst, or sudden wind changes making the approach unsafe
• Loss of visual references during approach to landing
• Traffic conflicts or runway/taxiway incursions
• ATC instructions to go around
• Any time the pilot determines the approach cannot be completed safely
• Equipment malfunctions discovered during approach
• Inadequate separation from other aircraft
• Personal discomfort with the approach profile or landing zone conditions

Commercial pilots must develop a “go-around mindset”—mentally prepared to abandon any approach that becomes unstable or unsafe. The decision must be timely; delaying the go-around increases risk exponentially as altitude and options decrease.

Power Application and Flight Control Coordination

The go-around begins with a smooth but decisive application of power. This is not an emergency maneuver requiring abrupt control inputs, but it does demand prompt action.

Power Application Sequence:

1. Decide and commit to the go-around
2. Announce the decision (“Going around”)
3. Apply power smoothly to arrest descent—increase collective while simultaneously adding right pedal to maintain heading
4. Adjust cyclic forward slightly to maintain or accelerate to climb airspeed (typically VY or cruise climb speed)
5. Monitor rotor and engine rpm to ensure they remain within normal operating limits throughout the transition

In helicopters, the primary concern during power application is maintaining proper rotor rpm. Adding collective increases blade pitch angle, which initially causes rotor rpm to decrease. The governor or throttle must respond adequately, and the pilot must monitor instruments to ensure rpm stays within the green arc (typically 95-104% Nr depending on aircraft).

Common Power Application Errors:

• Excessive collective application causing rotor rpm droop
• Inadequate right pedal leading to left yaw
• Abrupt cyclic movements causing pitch oscillations
• Failure to coordinate all three flight controls simultaneously
• Looking inside during the critical transition instead of maintaining visual references

Collision Hazards During Go-Around

The go-around introduces several collision hazard scenarios that require active management:

Ground Obstacles:

• Trees, wires, towers, or terrain that may lie in the departure path
• The pilot must immediately establish a climb angle that clears all obstacles while maintaining safe airspeed
• If on an approach to an elevated helipad or confined area, obstacle clearance may require lateral maneuvering as well as climb

Traffic Conflicts:

• Other helicopters in the pattern who may not expect your go-around
• Fixed-wing aircraft on approaches or departures at shared-use airports
• Aircraft on crossing runways or taxiways
• Helicopters hovering or in hover-taxi near your intended flight path

See-and-Avoid Requirements:

• Maintain visual scanning throughout the go-around maneuver
• The transition from approach attitude to climb attitude changes the pilot’s field of view significantly
• Areas previously visible may be obscured by the aircraft nose, windscreen posts, or instrument panel
• Actively clear the area ahead, above, and to both sides
• At controlled airports, traffic separation is ATC’s responsibility, but see-and-avoid remains the pilot’s ultimate responsibility per 14 CFR 91.113

Wire Hazards:

• Power lines and guy wires are particularly hazardous during go-arounds from low approaches
• If wires were a concern on the approach, they remain a concern during climb-out
• Plan go-around procedures during approach briefing to ensure wire clearance

Distractions, Task Prioritization, and Situational Awareness

The go-around is a high-workload maneuver that occurs at low altitude where errors have immediate consequences. Commercial pilots must manage multiple tasks while maintaining situational awareness.

Task Prioritization (Aviate, Navigate, Communicate):

1. Aviate: Fly the aircraft first—establish positive rate of climb, proper airspeed, maintain rotor rpm
2. Navigate: Ensure obstacle clearance, maintain proper ground track, avoid other traffic
3. Communicate: Notify ATC or announce on CTAF once aircraft control is assured

Common Distractions:

• Radio communications—do not prioritize talking over flying
• Checklist completion—run checklists when workload permits, not during the initial transition
• Passenger questions or concerns—brief passengers on sterile cockpit procedures
• Instrument cross-check—avoid fixation inside the aircraft during low-altitude maneuvering
• Determining the cause of the go-around—analyze later, fly now

Loss of Situational Awareness:

• During a go-around, pilots may become spatially disoriented, especially if the maneuver is unexpected
• Maintain awareness of aircraft position relative to the airport, traffic pattern, obstacles, and terrain
• Know your magnetic heading and geographic orientation at all times
• Use all available resources: GPS moving map, visual landmarks, heading indicator
• If disoriented, establish a safe climb and level flight, then reorient before proceeding

PAVE Risk Assessment:

• Pilot: Stress, fatigue, and surprise increase error probability during go-arounds
• Aircraft: Performance limitations at high density altitude may affect climb capability
• enVironment: Weather, obstacles, terrain, traffic density
• External Pressures: Self-imposed pressure to complete the landing, passenger expectations, fuel concerns

Runway Incursion Avoidance

Runway incursions are the unauthorized presence of an aircraft, vehicle, or person on a runway. During helicopter operations at towered airports, go-arounds may be necessitated by runway incursions or may create incursion risks if not properly coordinated.

Runway Incursion Scenarios During Go-Around:

• Aircraft ahead fails to clear the runway after landing
• Vehicle crosses the runway unexpectedly
• Another aircraft lines up without clearance
• Pilot misunderstands taxi instructions and crosses an active runway
• Landing helicopter drifts laterally into runway environment during approach

Avoidance Procedures:

• Read back all runway crossing and hold-short instructions with tail number and specific runway
• Monitor ATC frequency actively for traffic calls and runway status
• Verify the landing surface is clear before continuing approach to the runway environment at towered airports
• Understand airport signage and markings, especially runway holding position signs and surface painted markings
• Brief the approach including runway/landing area, surrounding taxiways, potential conflict areas
• When in doubt, ask ATC for clarification—never assume clearance or position

Hot Spots:

• Many airports publish “hot spots” in the Chart Supplement—areas with history of incursions
• Brief these locations during preflight planning
• Exercise heightened vigilance when operating near hot spots

Go-Around Specific Incursion Risk:

• If executing a go-around due to a runway incursion, climb straight ahead unless obstacle clearance requires lateral maneuvering
• Do not turn until clear of the runway environment and at a safe altitude
• Maintain visual contact with the traffic or vehicle causing the incursion if possible
• Report the incursion to ATC immediately once aircraft control permits

Go-Around Technique and Procedures

Standard Go-Around Procedure:

1. Make the decision promptly—recognize unstable approach indicators early
2. Announce “Going around” to ATC (towered) or on CTAF (non-towered)
3. Add power smoothly—increase collective to stop descent and establish climb
4. Coordinate pedals—add right pedal to counteract torque effect
5. Adjust cyclic—pitch for climb airspeed (typically 50-60 KIAS depending on aircraft type and weight)
6. Monitor rotor rpm—ensure rpm remains in green arc; adjust collective or throttle if necessary
7. Establish positive rate of climb—verify on VSI and altimeter
8. Stabilize airspeed—target climb speed ±5 knots
9. Maintain ground track—continue along departure path or as directed by ATC
10. Complete checklists—once climb established and workload permits
11. Coordinate next action—reenter pattern, reposition for another approach, or divert as appropriate

Communication Requirements:

• Towered Airport: “Tower, Helicopter 123AB, going around”
• ATC will provide further instructions (traffic pattern reentry, heading, altitude)
• Non-Towered Airport: “Traffic, Helicopter 123AB, going around, Runway 17, Jonesville”
• State intentions for pattern reentry or repositioning

Airspeeds:

• Initial climb: VY (best rate of climb) or manufacturer recommended go-around speed
• Typical range: 50-60 KIAS for light helicopters like R22/R44
• Heavier helicopters: 60-80 KIAS depending on aircraft type
• Commercial standard: maintain target airspeed ±5 knots

Altitude Considerations:

• At non-towered airports, climb to pattern altitude (typically 500-1000 AGL for helicopters)
• At towered airports, comply with ATC altitude assignments
• Maintain obstacle clearance throughout the climb

Single-Pilot and Crew Resource Management

Single-Pilot Resource Management (SRM):

Commercial helicopter pilots often operate single-pilot. Effective SRM during go-arounds includes:

• Task Management: Prioritize flying tasks over administrative tasks
• Automation Management: Use GPS, autopilot (if equipped), or other aids to reduce workload once initial maneuver is complete
• Risk Management: Continuously assess changing conditions; decide whether to attempt another approach or divert
• Situational Awareness: Maintain mental model of position, traffic, weather, fuel state
• Controlled Flight Into Terrain (CFIT) Awareness: Low visibility go-arounds carry CFIT risk; maintain obstacle clearance
• Decision Making: Use DECIDE model if time permits (Detect, Estimate, Choose, Identify, Do, Evaluate)

Crew Resource Management (CRM):

If operating with another pilot or crew:

• Clear Communication: Pilot flying (PF) announces “Going around”; pilot not flying (PNF) acknowledges
• Task Distribution: PF flies aircraft; PNF manages radios, checklists, monitors instruments
• Callouts: PNF provides altitude, airspeed, rotor rpm callouts during transition
• Coordination: Both pilots maintain situational awareness; either can call for go-around if safety concern arises

Regulatory References

• 14 CFR 91.113: Right-of-way rules—see and avoid responsibility
• 14 CFR 91.119: Minimum safe altitudes—ensure compliance during go-around climb
• 14 CFR 91.123: Compliance with ATC clearances—if ATC directs a go-around, comply immediately
• 14 CFR 91.129: Operations at towered airports—two-way radio communication required, follow ATC instructions
• 14 CFR 61.133: Commercial pilot privileges—commercial operations require higher standard of proficiency in all maneuvers including go-arounds

Risk Management Summary

The Commercial Pilot Helicopter ACS Task CH.VII.A identifies five critical risk management elements:

1. Recognition of the need for a go-around: Develop go-around mindset; recognize unstable approach early
2. Application of power and flight control inputs: Smooth, coordinated application maintaining rotor rpm
3. Collision hazards: Active scanning for traffic, obstacles, terrain throughout maneuver
4. Distractions, task prioritization, loss of situational awareness, or disorientation: Aviate-Navigate-Communicate; maintain spatial awareness
5. Runway incursion: Clear communication, proper readback, visual verification, hot spot awareness

Schedule

Equipment

Required Aircraft Equipment

• Airworthy helicopter with current annual inspection and 100-hour (if applicable)
• Current weight and balance data
• Pilot’s Operating Handbook (POH) or Rotorcraft Flight Manual (RFM)
• Current navigation charts for local area
• Functional two-way radio communication equipment

Required References

• FAA-S-ACS-16, Commercial Pilot Helicopter Airman Certification Standards (current edition)
• FAA-H-8083-21B, Helicopter Flying Handbook
• FAA-H-8083-25B, Pilot’s Handbook of Aeronautical Knowledge
• 14 CFR Part 61 (Certification: Pilots, Flight Instructors, and Ground Instructors)
• 14 CFR Part 91 (General Operating and Flight Rules)
• Aircraft-specific POH/RFM
• Chart Supplement (formerly A/FD) for airports to be used
• Current sectional or terminal area chart

Training Materials

• Whiteboard or notepad for diagram drawing
• Model helicopter (if available) for control input demonstration
• Airport diagram for runway incursion discussion
• ACS standards printout highlighting Task CH.VII.A
• Go-around decision checklist or memory aid

Visual Aids

• Diagram: Go-around flight path from various approach profiles
• Diagram: Power application and control coordination sequence
• Chart: Collision hazard scan pattern during go-around
• Diagram: Airport runway incursion hot spots (using local airport)
• Flowchart: Task prioritization (Aviate-Navigate-Communicate)

Instructor Actions

1. Conduct preflight briefing covering the lesson objective, ACS standards for Task CH.VII.A, and the specific go-around scenarios to be practiced (go-arounds from normal approach, steep approach, crosswind approach, and unplanned/instructor-directed go-arounds).

2. Present ground instruction on go-around decision-making, emphasizing that commercial pilots must recognize unstable approaches early and that executing a go-around demonstrates good judgment, not poor piloting skills.

3. Explain the physiological and psychological factors that may delay go-around decisions, including “get-home-itis,” plan continuation bias, and self-imposed pressure to complete the landing—emphasize that commercial pilots must overcome these tendencies.

4. Demonstrate on the ground or with a model helicopter the proper sequence of control inputs for a go-around: collective up, right pedal simultaneously, cyclic forward slightly, eyes outside maintaining visual scan.

5. Discuss power management and rotor rpm control during the go-around, explaining how collective increases blade pitch and initially reduces rotor rpm, requiring governor response or throttle adjustment to maintain rpm in the green arc.

6. Review collision hazards specific to go-arounds using diagrams showing obstacle clearance requirements, traffic pattern conflicts, and the changing visual perspective during the climb transition—emphasize that see-and-avoid is continuous throughout the maneuver.

7. Present runway incursion scenarios using the airport diagram for the practice airport, identifying hot spots, reviewing runway hold-short markings, and discussing proper readback procedures and visual verification before crossing any runway environment.

8. Explain task prioritization during the go-around using the Aviate-Navigate-Communicate hierarchy, emphasizing that radio calls are secondary to aircraft control and obstacle clearance during the initial transition.

9. Discuss common distractions and loss of situational awareness during go-arounds, including passenger reactions, radio calls, determining the cause of the go-around, and instrument fixation—teach students to compartmentalize these tasks and address them after establishing a stable climb.

10. Review communication procedures for both towered and non-towered airports, providing standard phraseology examples and emphasizing the requirement to notify ATC immediately when going around at a towered field.

11. Brief the flight portion of the lesson including departure procedures, practice area or traffic pattern to be used, specific go-around scenarios to be practiced, safety considerations, and abort criteria for the training flight.

12. Supervise the aircraft preflight inspection, ensuring the student performs a thorough check and reviews aircraft performance data, weight and balance, and density altitude effects on go-around climb performance.

13. During flight, demonstrate a go-around from a normal approach profile, providing clear verbal narration of each step: recognition of unstable approach (simulated), go-around decision, power application with pedal coordination, cyclic adjustment for climb airspeed, monitoring rotor rpm, establishing positive rate of climb, communication, and traffic scan throughout.

14. Point out visual references and instrument indications during the demonstration, showing the student what “positive rate of climb” looks like on the VSI and altimeter, and how to verify airspeed is stabilizing within the target range of ±5 knots.

15. Set up practice scenarios by coaching the student through approaches and calling for a go-around at various points (early in approach, mid-approach, near termination) to develop timely decision-making skills under varying conditions.

16. Introduce realistic distractions during practice go-arounds such as asking questions, simulating radio calls, or requesting checklist items—then debrief how the student prioritized tasks and maintained situational awareness.

17. Simulate runway incursion scenarios (at appropriate airports) by having the student visualize a vehicle or aircraft on the runway during approach and execute a go-around with proper communication and incursion reporting procedures.

18. Monitor student performance closely for proper control coordination, rotor rpm management, airspeed control within ±5 knots, directional control throughout the maneuver, and proper collision avoidance scan pattern.

19. Provide immediate feedback after each practice go-around, highlighting what the student did well and identifying specific areas for improvement, such as delayed power application, inadequate pedal input, or poor airspeed control.

20. Ensure the student practices go-arounds from various approach profiles including normal approaches, steeper approaches (simulating confined area departures), and crosswind approaches to develop proficiency in different scenarios.

21. Coach the student to verbalize their decision-making process during go-arounds, encouraging callouts such as “Going around,” “Power applied,” “Positive rate,” and “Airspeed on target” to develop disciplined procedures.

22. Emphasize lookout doctrine throughout the lesson, reminding the student to maintain visual scanning even during high-workload phases, and correcting any tendency toward instrument fixation or heads-down time during low-altitude maneuvering.

23. Debrief the flight thoroughly, reviewing each go-around performed, discussing decision-making quality, control technique, airspeed and altitude management, communication effectiveness, and overall situational awareness—use ACS standards as the grading criteria.

24. Assign post-flight study items including review of go-around procedures in the aircraft POH, practice chair-flying the maneuver, and review of runway incursion prevention materials in the Chart Supplement for airports the student will use.

25. Document the lesson in the student’s training record, noting progress toward ACS standards for Task CH.VII.A and identifying any areas requiring additional practice before the commercial checkride.

Student Actions

1. Arrive prepared with completed pre-lesson study of go-around procedures in the POH, ACS Task CH.VII.A requirements, and relevant FAR sections (14 CFR 91.113, 91.119, 91.123, 91.129).

2. Actively participate in ground instruction, asking questions about any go-around concepts, procedures, or scenarios that are unclear, particularly regarding when to initiate a go-around and how to recognize unstable approaches.

3. Demonstrate understanding of the go-around mindset by explaining to the instructor why timely go-around decisions are critical and how delaying the decision increases risk exponentially.

4. Practice control coordination on the ground or with a model helicopter, verbalizing the sequence of collective up, right pedal, cyclic forward, and demonstrating understanding of the timing and coordination required.

5. Explain power management and rotor rpm considerations during go-arounds, describing how collective application affects rotor rpm and what the pilot must monitor to ensure rpm stays within limits.

6. Identify collision hazards using airport diagrams and approach charts, pointing out obstacles, traffic pattern conflicts, runway incursion risks, and areas requiring heightened vigilance during go-around execution.

7. Demonstrate proper communication procedures by role-playing go-around radio calls for both towered and non-towered airports, using correct phraseology and showing understanding of when to make the call relative to aircraft control tasks.

8. Explain task prioritization using the Aviate-Navigate-Communicate framework, and describe how to manage distractions and maintain situational awareness during the high-workload go-around maneuver.

9. Review runway incursion prevention procedures including readback requirements, hot spot awareness, surface marking recognition, and what to do if an incursion is observed during approach.

10. Conduct a thorough aircraft preflight inspection, reviewing performance data for go-around climb capability at current weight and density altitude, and briefing the instructor on expected aircraft performance.

11. Brief the planned flight including departure, practice area or pattern work, specific go-around scenarios to be practiced, emergency procedures, and any special considerations for the training environment.

12. Observe the instructor’s demonstration go-around, noting the visual cues, instrument indications, timing of control inputs, communication procedures, and traffic scan pattern throughout the maneuver.

13. Ask questions immediately after the demonstration to clarify any technique points, visual references, or procedures observed during the instructor’s go-around.

14. Execute practice go-arounds from various approach profiles as directed by the instructor, making timely decisions to discontinue approaches and applying proper control inputs to establish a stable climb.

15. Coordinate all three flight controls smoothly during each go-around, adding collective to stop descent, applying right pedal to maintain heading, and adjusting cyclic to achieve and maintain climb airspeed within ±5 knots of the target.

16. Monitor rotor rpm continuously during the power application and transition to climb, making throttle adjustments as necessary to keep rpm within the green arc—immediately notify the instructor if rpm approaches limits.

17. Establish a positive rate of climb as quickly as safely possible, verifying climb on the VSI and altimeter while maintaining visual scan for obstacles and traffic.

18. Maintain directional control and ground track throughout the go-around, applying pedal inputs as needed to prevent yaw and using cyclic to maintain the intended departure path or as directed by ATC.

19. Communicate promptly and correctly with ATC (if operating at a towered airport) or broadcast on CTAF (if non-towered), using proper phraseology and making the call once aircraft control is assured.

20. Manage distractions effectively by prioritizing aircraft control over all other tasks, maintaining spatial awareness even when workload is high, and deferring non-critical tasks until the aircraft is in a stable climb.

21. Demonstrate runway incursion avoidance procedures including visual verification of clear landing area before continuing approach, proper readback of all ATC instructions, and immediate go-around if an incursion is observed.

22. Use single-pilot resource management techniques throughout the lesson, including verbalizing decisions, managing workload through task prioritization, and maintaining situational awareness of position, traffic, weather, and aircraft performance.

23. Complete appropriate checklists once the aircraft is stabilized in the climb and workload permits, either from memory (if applicable) or by reference to the written checklist, without allowing checklist completion to distract from aircraft control.

24. Verbalize decision-making and situation assessment during practice go-arounds, calling out key events such as “Going around,” “Power applied,” “Positive rate,” “Airspeed on target,” to develop disciplined procedures and enhance instructor’s ability to evaluate decision-making.

25. Self-critique performance after each go-around, identifying what went well and what needs improvement, and asking the instructor for specific feedback on technique, timing, and adherence to ACS standards.

26. Participate actively in the post-flight debriefing, discussing lessons learned, asking questions about any maneuvers that did not meet standards, and demonstrating understanding of what practice is needed before the next lesson.

27. Complete assigned post-flight study including POH review, chair-flying practice, and any additional reading on go-around procedures, runway incursion prevention, or risk management topics identified during the debrief.

Completion Standards

The lesson is complete when the student consistently demonstrates the ability to perform go-arounds in accordance with Commercial Pilot Helicopter ACS Task CH.VII.A standards:

1. Makes a timely decision to discontinue the approach when unstable approach parameters are recognized (excessive sink rate, airspeed deviations, poor alignment, obstacles on landing area) or at the direction of the evaluator, demonstrating professional decision-making without hesitation or delay.

2. Applies power smoothly and decisively by increasing collective to arrest descent while simultaneously coordinating right pedal input to maintain directional control, adjusting cyclic as needed to establish climb attitude, and demonstrating proper control feel and coordination throughout the transition.

3. Maintains powerplant and rotor rpm within normal operating limits (green arc on tachometer) throughout the go-around maneuver by monitoring rpm during collective application and making throttle adjustments as necessary to prevent rpm droop or overspeed.

4. Establishes and maintains a positive rate of climb as indicated by VSI showing climb rate and altimeter showing increasing altitude, with no hesitation or settling during the transition from approach descent to climb.

5. Maintains climb airspeed within ±5 knots of the target airspeed (typically VY or manufacturer recommended go-around speed, usually 50-60 KIAS for light helicopters) throughout the maneuver as required by Commercial ACS standards.

6. Maintains directional control throughout the go-around with heading deviations not exceeding ±10° from the intended departure path, demonstrating proper pedal coordination to counteract torque effects during power application.

7. Maintains proper ground track along the extended runway centerline or intended departure path, correcting for wind drift as necessary and avoiding lateral drift into obstacles or adjacent runways/taxiways.

8. Notifies ATC promptly (at towered airports) using correct phraseology such as “Tower, Helicopter [call sign], going around” or broadcasts on CTAF (at non-towered airports) once aircraft control is assured, making the radio call without allowing it to distract from aircraft control during the critical low-altitude transition.

9. Completes appropriate checklist(s) once the aircraft is stabilized in a climb and workload permits, either from memory or by reference to the written checklist as specified in the POH for go-around procedures.

10. Demonstrates effective single-pilot resource management (SRM) by properly prioritizing tasks (aviate-navigate-communicate), managing distractions without losing situational awareness, maintaining awareness of position relative to the airport and traffic, and making sound aeronautical decisions throughout the maneuver.

11. Uses proper runway incursion avoidance procedures including reading back all ATC clearances and hold-short instructions correctly, visually verifying the landing area is clear before continuing approach, maintaining awareness of hot spots and incursion risks, and immediately notifying ATC if an incursion is observed.

12. Maintains effective collision avoidance scan throughout the go-around maneuver by keeping eyes outside during the low-altitude transition, actively clearing the area ahead and to both sides, being aware of potential traffic conflicts in the pattern, and maintaining obstacle clearance throughout the climb.

13. Recognizes and manages risk factors associated with go-arounds including timely recognition of need to go around, smooth and coordinated power/control application, active collision hazard management, effective task prioritization to prevent loss of situational awareness or disorientation, and runway incursion prevention as specified in ACS Task CH.VII.A Risk Management elements.

14. Demonstrates consistent performance across multiple go-around scenarios including go-arounds from normal approaches, steeper approaches, crosswind approaches, and unplanned/instructor-directed go-arounds without prior warning, showing proficiency in all conditions.

15. Exhibits aeronautical decision-making and risk management consistent with commercial pilot privileges under 14 CFR 61.133, demonstrating the higher standard of precision, judgment, and professionalism expected of commercial helicopter pilots in all aspects of the go-around maneuver.

The student must meet all completion standards on consecutive go-around attempts before progressing to the next lesson. Any performance below these standards requires additional practice and debriefing until consistent commercial-level proficiency is achieved in Task CH.VII.A.