FAA Jeppesen Instrument Rating Practice Test

The speed range for approach category D is defined as aircraft whose approach speeds are between 141 and 165 knots. This categorization is essential as it impacts the separation standards and procedures for instrument approaches, ensuring that aircraft are appropriately spaced for safe operations in controlled airspace.

Category D typically includes large turbojet aircraft, and understanding this speed range helps pilots and controllers plan and execute safe approaches and landings. The specific speed range is established to account for the higher stall speeds found in these types of aircraft, which require different handling characteristics and separation criteria than those of slower aircraft in categories A through C. Understanding these categories is critical for maintaining safety and efficiency in the busy airspace operations surrounding airports.