What is the minimum number of instrument approaches that must be logged within the preceding 6 months for IFR currency?

The correct answer is based on the requirements set forth by aviation regulations for maintaining IFR (Instrument Flight Rules) currency. To stay current for IFR operations, a pilot must complete a minimum of three instrument flight approaches within the preceding six months. This requirement ensures that pilots maintain their proficiency in flying under instrument conditions, which can be critical for safety.

Even though some might think a higher number of approaches like six could provide better preparedness, the regulatory standard is specifically three. This requirement is designed to balance proficiency with practical training opportunities—ensuring that pilots have enough recent experience to safely operate under IFR conditions without imposing an excessive burden.

While options like four, two, or even six approaches may seem reasonable, they do not align with the established requirement which aims to ensure that pilots remain effective and safe in a range of flying conditions. Thus, the focus on three approaches provides the necessary legal and practical framework for ensuring IFR currency.