# PI.VI.F — Timed Turns to Magnetic Compass Headings — Flight Instructor – Instrument Powered Lift ACS

> PI.VI.F from FAA-S-ACS-28, including the official objective, references, notes, and 17 exact knowledge, risk-management, and skill descriptions.

Canonical HTML: [https://www.check-ride.ai/acs/powered-lift/flight-instructor-instrument/pi-vi-f](https://www.check-ride.ai/acs/powered-lift/flight-instructor-instrument/pi-vi-f)

Site reference: [https://www.check-ride.ai/llms.txt](https://www.check-ride.ai/llms.txt)

## Official Task context

- FAA document: Flight Instructor – Instrument Rating Powered-Lift Airman Certification Standards
- Identifier: FAA-S-ACS-28
- Published source date: November 2023
- Aircraft category: Powered Lift
- Certificate or rating: Flight Instructor – Instrument
- Area of Operation: Area of Operation VI. Flight by Reference to Instruments
- Task: Task F. Timed Turns to Magnetic Compass Headings
- Task code prefix: PI.VI.F
- Official references: FAA-H-8083-2, FAA-H-8083-9, FAA-H-8083-15, FAA-H-8083-25
- FAA source library: https://www.faa.gov/training_testing/testing/acs

## Official Task objective

To determine the applicant understands attitude instrument flying during timed turns to magnetic compass headings, and can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.

## Knowledge elements

- **PI.VI.F.K1** — Elements related to attitude instrument flying during timed turns to magnetic compass headings, including operating characteristics and errors of the magnetic compass.
- **PI.VI.F.K2** — The relationship of pitch, bank, and power during timed turns to magnetic compass headings.
- **PI.VI.F.K3** — Full and partial panel procedures for timed turns to specified magnetic compass headings.
- **PI.VI.F.K4** — Normal and abnormal instrument indications and operations.
- **PI.VI.F.K5** — Instrument cross-check techniques.
- **PI.VI.F.K6** — Common errors related to this Task.

## Risk management elements

- **PI.VI.F.R1** — Fixation and omission.
- **PI.VI.F.R2** — Instrument Interpretation.
- **PI.VI.F.R3** — Aircraft coordination.
- **PI.VI.F.R4** — Situations that can affect physiology and degrade instrument cross-check.
- **PI.VI.F.R5** — Flying unfamiliar aircraft or operating with unfamiliar flight display systems and avionics.
- **PI.VI.F.R6** — Distractions, task prioritization, loss of situational awareness, or disorientation.
- **PI.VI.F.R7** — Control application solely by reference to instruments.

## Skills elements

- **PI.VI.F.S1** — Use proper instrument cross-check and interpretation, and apply the appropriate pitch, bank, power, configuration, and trim corrections when applicable.
- **PI.VI.F.S2** — Complete timed turns to specific magnetic compass headings using instrument cross-check and interpretation and coordinated control application.
- **PI.VI.F.S3** — Maintain altitude ±100 feet, maintain a standard rate turn, roll out on the assigned heading ±10°, and obtain the desired airspeed ±10 knots.
- **PI.VI.F.S4** — Analyze and correct common errors related to this Task.

## Difficulty methodology

Difficulty calibration is ongoing for this Task. Observed difficulty is a privacy-thresholded check-ride.ai mock-oral practice proxy, not an FAA practical-test pass or fail rate. Underlying sample sizes and the private reporting threshold are not published.

## Use in practice

A mock examiner can ask a pilot to explain the published elements, apply them to the configured aircraft and airport context, identify risks, and defend a decision. Practice prompts are not represented as actual FAA examiner scripts or predictions of the questions a candidate will receive.