If an aircraft is on a heading of 090 degrees, what is an appropriate VFR altitude?

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When flying under Visual Flight Rules (VFR) in the United States, pilots must adhere to specific altitude requirements based on their direction of flight. For aircraft flying on a heading of 090 degrees, or east, the appropriate VFR cruising altitude is determined by the rule known as "Odd and Even altitudes."

According to these rules, for eastbound flights (heading from 000 to 179 degrees), pilots should fly at odd altitudes plus 500 feet. Therefore, for a heading of 090 degrees, a suitable altitude would be 3,500 feet. This altitude ensures that aircraft flying at this level are maintaining safe vertical separation from other aircraft flying at even altitudes. This system helps reduce the risk of midair collisions.

The other altitude options (3,000 feet, 2,000 feet, and 4,000 feet) do not align with the prescribed VFR cruising altitudes associated with an eastbound flight heading and would not provide the appropriate vertical separation required by VFR regulations.

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