1-g Stall Speed as the Basis for Compliance With Part 25 of the Federal Aviation Regulations

摘要

The Federal Aviation Administration (FAA) proposes to redefine the reference stall speed for transport category airplanes as the 1-g stall speed instead of the minimum speed obtained in a stalling maneuver. The proposed changes would: provide for a consistent, repeatable reference stall speed; ensure consistent and dependable maneuvering margins; provide for adjusted multiplying factors to maintain approximately the current requirements in areas where use of the minimum speed in the stalling maneuver has proven adequate; and harmonize the applicable regulations with those proposed for the European Joint Aviation Requirements-25 (JAR-25). These changes would result in a higher level of safety for those cases in which current methods would result in artificially low operating speeds.