FAA Instrument Rating Exam Practice 2025 – Comprehensive Prep Test

Question: 1 / 400

When flying directly over a published airborne VOR checkpoint, what is the maximum error allowed for IFR flight?

Plus or minus 6° of the designated radial

When flying directly over a published airborne VOR checkpoint, the maximum allowable deviation for IFR flight is plus or minus 6 degrees of the designated radial. This standard ensures that pilots maintain navigational accuracy, which is critical in the IFR environment where precise pilotage is necessary to avoid controlled airspace conflicts or terrain.

The established tolerance emphasizes safety and reliability in navigation, particularly for instrument approaches and departures. To maintain this degree of accuracy, pilots rely on regular VOR checks and adhere to the guidelines set forth in FAA regulations. The correct answer reflects the importance of precise navigation, as any significant deviation could lead to issues such as loss of separation from other aircraft or navigation errors leading to dangerous situations.

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Plus or minus 4° of the designated radial

Plus 6° or minus 4° of the designated radial

Plus or minus 10° of the designated radial

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