IFR prepInstrument Rating Workbook
$24.99 Paperback · $9.99 Kindle
ACS-aligned IFR study for weather, procedures, charts, systems, and scenario thinking under instrument pressure.
Try a real Instrument workbook question
Exercise 2.6 — VOR Checks, item 2 only. A tiny promotional excerpt from Instrument Rating Workbook, First Edition — 2026, Version 1.0 (February 2026). Prompt: PDF page 46; consolidated answer: PDF page 153.
Page references are 1-based physical pages in the 158-page paperback interior, not Kindle locations. Selected text is exact; layout is reformatted, not a reproduction of the full pages. Other exercise items are omitted.
Question — from the workbook
2. You perform a dual VOR check. VOR #1 reads 271° and VOR #2 reads 268°. Is this acceptable?
☐ Yes ☐ No — The difference is ______°. Maximum allowed: ______°.
Show the workbook answer
Consolidated answer key, item 2:
2) Difference is 3°. Maximum 4°. Yes, acceptable.
Source check — added for this sample: 271° − 268° = 3°, within the 4° maximum variation in 14 CFR §91.171(c). This assumes two VOR units independent except for the antenna, tuned to the same VOR ground facility. Passing this comparison alone does not establish aircraft airworthiness or authorize a flight.
Checked September 10, 2026 against §91.171(c) and FAA AIM 1-1-4. Limited to this excerpt; not a full-book review or CFII endorsement.
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Original workbook disclaimer
This workbook is designed for training and educational purposes. While every effort has been made to ensure accuracy, the author assumes no responsibility for errors or omissions. For actual flight training and testing, always consult current official FAA publications.
FAA Disclaimer: This material is not endorsed by the Federal Aviation Administration.
From PDF page 2. Copyright © 2026 Nick Rae. All rights reserved. Sample published with author permission.
Training and educational use only. Consult current official FAA publications and your instructor. Not FAA endorsed.