What altitude must each person operating an aircraft maintain at a VFR cruising altitude?

In aeronautical terms, VFR (Visual Flight Rules) cruising altitudes are defined based on the direction of flight, which helps ensure safe vertical separation between aircraft. For aircraft flying at altitudes below 18,000 feet MSL, the FAA mandates a specific cruising altitude system:

• Aircraft flying on magnetic courses of 0° to 179° should use odd-thousand-foot altitudes, plus 500 feet. This means pilot should choose altitudes such as 3,500 feet, 5,500 feet, or 7,500 feet.

• Conversely, aircraft on courses of 180° to 359° should utilize even-thousand-foot altitudes, plus 500 feet, such as 4,500 feet, 6,500 feet, or 8,500 feet.

This system is designed to minimize the risk of mid-air collisions and maintain organized traffic patterns in VFR conditions. By adhering to these altitude determinations, pilots ensure that they are operating within a safe framework and in compliance with federal regulations.

Other options do not reflect this structured approach to VFR cruising altitudes and therefore do not meet the regulatory requirements for vertical separation of aircraft.