Is it true that an aircraft shall not be flown less than 1,000 feet above the highest obstacle within a horizontal radius of 2,000 feet?

The assertion that an aircraft shall not be flown less than 1,000 feet above the highest obstacle within a horizontal radius of 2,000 feet is indeed true. This regulation is primarily rooted in safety considerations, ensuring that aircraft maintain a safe altitude to avoid collisions with obstacles such as buildings, towers, and other structures.

This guideline is particularly relevant in both rural and urban environments, as it establishes a standard minimum altitude that enhances situational awareness for pilots and helps to minimize the risk of accidents during various phases of flight, especially during takeoff and landing. By adhering to this regulation, pilots can ensure they have adequate vertical clearance from obstacles, thereby promoting safer aviation operations.

Other options suggest either false claims or limitations that are not generally applicable to all flight operations, as the 1,000-foot altitude rule applies consistently and is not restricted based on geographic considerations or time of day.