What is the minimum diameter of a Hartzell propeller with a HC-C2YF-1 hub and 7068 blades?

The minimum diameter of a Hartzell propeller with a HC-C2YF-1 hub and 7068 blades is indeed 60 inches. This specific measurement is established in the propeller's design specifications, which outline various parameters including diameter, blade material, and configuration for optimal performance and safety. Hartzell’s propeller diameter specifications are critical for ensuring compatible operation with the aircraft for which the propeller is intended. A diameter of 60 inches has been determined as the least acceptable length for ensuring aerodynamic efficiency and structural integrity, supporting the proper thrust and performance characteristics vital for safe flight operation.

Understanding such specifications helps users of Hartzell propellers make informed decisions regarding installations and performance expectations within the aircraft's operational guidelines. Such knowledge also aids in compliance with regulatory requirements set by aviation authorities.