What is the adjusted minimum flight level for an altimeter setting between 29.41 and 28.92?

The adjusted minimum flight level is determined based on the altimeter setting used for flight operations. When the altimeter setting is between 29.41 inches of mercury and 28.92 inches, it indicates a slightly higher-than-standard atmospheric pressure. Therefore, to ensure safe separation between aircraft operating at varying altitudes, the standard adjustment in this range is established.

Flight levels are generally based on a standard altimeter setting of 29.92 inches of mercury. When the altimeter setting is lower than this standard, pilots must fly at a higher altitude to maintain the same level of separation. The adjustment for altimeter settings between 29.41 and 28.92 inches is 1,000 feet. This ensures that aircraft are flying at altitudes that maintain safe vertical separation as air density can fluctuate.

To summarize, given the altimeter setting specified, the adjusted minimum flight level is set at 1,000 feet. This is crucial for ensuring safe operations in congested airspace where multiple aircraft are climbing, cruising, or descending.