What best describes the operating characteristics of CAT 1 aircraft?

The operating characteristics of Category 1 (CAT 1) aircraft are defined primarily by their speed range, which generally falls between 100 and 160 knots. This classification refers to the aircraft's capabilities in terms of speed, typically associated with smaller jet aircraft and propeller aircraft that are designed for short to medium-haul flights.

This speed range reflects the typical operational envelope for aircraft in this category, which allows them to perform efficiently and safely in various airspace environments.

The other choices describe characteristics that do not align with the typical profile of CAT 1 aircraft. The specifics of altitude and speed in the other options may be relevant to different categories of aircraft or specific operational contexts, but they do not accurately represent the common attributes of CAT 1. Overall, understanding the standard operational speeds of aircraft is crucial for air traffic management and safety in flight operations.