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CP.IV.C — Air Taxi

CP.IV.C for the Commercial Pilot Powered Lift ACS: official objective, references, and 27 exact knowledge, risk-management, and skill descriptions.

FAA-S-ACS-2, November 2023. This study page does not replace the current FAA publication or an examiner's plan of action.

Official task context

CP.IV.C official ACS context
Certificate or ratingCommercial Pilot
Aircraft categoryPowered Lift
Area of operationArea of Operation IV. Hovering Maneuvers
TaskTask C. Air Taxi
Task code prefixCP.IV.C
Official referencesAC 91-73; AIM; Chart Supplements; FAA-H-8083-2, FAA-H-8083-25; Flight Manual
FAA documentFAA-S-ACS-2 — Commercial Pilot for Powered-Lift Category Airman Certification Standards
FAA source libraryOpen the official ACS library

Official task objective

To determine the applicant exhibits satisfactory knowledge, risk management, and skills associated with air taxi operations.

What the ACS code means

  • CP identifies the ACS standard family used for this Commercial Pilot Powered Lift document.
  • IV identifies Hovering Maneuvers, the Area of Operation.
  • C identifies Air Taxi, the Task within that Area.
  • K, R, and S identify knowledge, risk-management, and skill elements. The number selects the item; a trailing lowercase letter identifies a listed sub-element.

Knowledge elements

Official ACS knowledge items and mock-oral treatment
ACS codeOfficial descriptionHow a mock oral can probe it
CP.IV.C.K1Current airport aeronautical references and information resources such as the Chart Supplement, airport diagram, and Notices to Air Missions (NOTAMs).Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K2Air taxi instructions, clearances, and limitations.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K3Aircraft configuration.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K4Airport/heliport/helipad/landing area, signs, markings, and lighting.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K5Visual indicators for wind.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K6Aircraft lighting, as appropriate.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K7Procedures for:Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K7aa. Pilot activities during taxiingExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K7bb. Safe air taxi at towered and non-towered airports/heliports/helipads/landing areasExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K7cc. Overflying of runwaysExplain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K8Aircraft operating limitations.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K9Appropriate height and speed for air taxi.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.
CP.IV.C.K10Height/Velocity (H/V) considerations.Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant.

Risk management elements

Official ACS risk management items and mock-oral treatment
ACS codeOfficial descriptionHow a mock oral can probe it
CP.IV.C.R1Activities and distractions.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
CP.IV.C.R2Reduced visibility or night taxi operations.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
CP.IV.C.R3H/V diagram performance in case of powerplant failure.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
CP.IV.C.R4Other aircraft and hazards.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.
CP.IV.C.R5Runway incursion.Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision.

Skills elements

Official ACS skills items and mock-oral treatment
ACS codeOfficial descriptionHow a mock oral can probe it
CP.IV.C.S1Complete the appropriate checklist(s).Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
CP.IV.C.S2Use an airport diagram or taxi chart during taxi, if published, and maintain situational awareness.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
CP.IV.C.S3Select a safe airspeed and altitude.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
CP.IV.C.S4Maintain an appropriate aircraft configuration throughout the maneuver.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
CP.IV.C.S5Maintain specified altitude, ±10 feet.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
CP.IV.C.S6Air taxi from one point to another under various wind conditions.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
CP.IV.C.S7Maintain the aircraft within operating limits throughout the maneuver.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
CP.IV.C.S8Comply with airport/heliport/helipad/landing area markings, lights, signs, and ATC instructions.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.
CP.IV.C.S9Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate.Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test.

Difficulty data

Difficulty calibration is ongoing for this Task. A difficulty estimate is published only with a sufficiently large, privacy-preserving first directly recorded assessment sample. Any observed difficulty comes from Checkride AI mock-oral practice assessments and is a practice-data proxy, not an FAA practical-test pass or fail rate.

Difficulty calibration remains ongoing until an item clears the private reporting threshold. Percentages, when available, describe the share who needed review on their first directly recorded assessment. Underlying sample sizes are never published, and historical final states are not backfilled into this measure.

How to use this in a mock oral

A mock examiner can ask you to explain the published elements, apply them to the configured aircraft and airport scenario, identify risks, and defend a decision. The prompts are practice scenarios; they are not claimed to be actual FAA examiner scripts or a prediction of the questions you will receive.

Practice in a mock oral

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