Part 27 of 14 CFR pertains to airworthiness standards for which category of aircraft?

Part 27 of 14 CFR specifies the airworthiness standards for normal category rotorcraft. This regulation outlines the design and performance requirements that must be met to ensure safety and reliability in normal category rotorcraft operations. Normal category rotorcraft are primarily intended for non-commercial use and include small helicopters that are not expected to carry more than a certain number of passengers or a specified weight of cargo.

The standards laid out in Part 27 address key safety features, including structural integrity, powerplant performance, and other essential operational characteristics, ensuring that these aircraft can operate safely in their intended environments. Understanding this regulation is important for anyone working with or inspecting rotorcraft, as it directly influences the design, certification, and maintenance practices for these aircraft.