When utilizing performance figures from the Aircraft Flight Manual (AFM) or Pilot's Operating Handbook (POH), what standards are typically applied?

The performance figures found in the Aircraft Flight Manual (AFM) or Pilot's Operating Handbook (POH) are typically based on standard atmospheric conditions at sea level. Standard temperature is 15 degrees Celsius (59 degrees Fahrenheit) and standard pressure is 29.92 inches of mercury (Hg) or 1013.25 hPa. These figures provide a baseline for performance calculations, ensuring that pilots can accurately interpret the aircraft's capabilities under recognized standard conditions.

Using performance data derived from these standard conditions at sea level allows for consistent and reliable assessments of an aircraft's performance metrics, such as takeoff distance, climb rates, and landing distances. Pilots can then make informed decisions about the operation of their aircraft, adjusting for real conditions encountered in actual flights.

In contrast, the other options refer to conditions that would generally not serve as the basis for standard performance figures in the AFM or POH. For example, altitude-specific temperature and pressure or variable temperatures based on the flight plan would imply that the performance data needs to be adjusted for various operational scenarios, whereas the goal of standardizing performance figures is to provide a consistent reference point.