Instrument Rating Checkride Practice Test

The approach category of an aircraft is primarily determined by what measure?

1. Weight of the aircraft

2. 1.3 times the stall speed in landing configuration

3. Maximum cruising speed

4. Altitude during approach

The correct answer is: 1.3 times the stall speed in landing configuration

The approach category of an aircraft is primarily determined by 1.3 times the stall speed in landing configuration. This measure is critical because it ensures safe handling characteristics and performance during the approach phase of flight. The stall speed in landing configuration reflects how the aircraft will behave when it is configured for landing, which typically means flaps are extended and other landing systems are engaged. By multiplying this speed by 1.3, pilots can determine the category of an aircraft, which is essential for adherence to the required separation minima during approach and landing, as well as ensuring that appropriate procedures are followed for that specific category. The other options provided refer to various aircraft characteristics, but they do not directly relate to the approach category as defined by regulatory guidelines. Weight is important for performance calculations but does not set the approach category. Maximum cruising speed is a measure of the aircraft's performance during normal flight but does not influence landing approach classifications. Altitude during approach pertains to the operational phase of flight but lacks relevance in categorizing the aircraft itself for approach purposes.