After your recent IFR experience lapses, how much time do you have before you must pass an instrument proficiency check to act as pilot in command under IFR?

The correct answer is 6 months, which aligns with the regulations set by the FAA regarding instrument currency. After the lapse of IFR experience, a pilot has a 6-month grace period during which they can still legally act as pilot in command under IFR conditions. However, after this 6-month period, if the pilot has not completed an instrument proficiency check, they are no longer considered current and are required to pass the check before exercising IFR privileges again.

This regulation is designed to ensure that pilots maintain their proficiency in instrument flying, as operating under IFR requires specific skills and knowledge that can diminish over time without practice. Thus, the 6-month period provides a reasonable timeframe for pilots to complete any necessary training or checks to ensure their safety and the safety of their passengers.