What is the maximum indicated airspeed above 14,000 feet for a propeller-driven airplane while in a holding pattern?

The maximum indicated airspeed for a propeller-driven airplane while in a holding pattern above 14,000 feet is determined by regulations aimed at maintaining safety and efficiency in high-altitude operations. In the United States, the guidelines for holding patterns specify that the maximum indicated airspeed should not exceed 265 knots for propeller-driven aircraft. This speed limit helps ensure that the aircraft can maintain proper control and maneuverability, especially while executing turns in the holding pattern, which can be critical in both turbulent conditions and airspace congestion.

Other options present higher speeds that may be permissible for certain types of jet aircraft, but for propeller-driven planes specifically, the limit is set at 265 knots to enhance operational safety and adherence to best practices for flight operations in holding patterns.