Practice question

According to the semi-circular cruising level rule, what flight levels should an IFR aircraft select when flying on a magnetic track of 090 degrees?

  1. Odd flight levels (e.g., FL50, FL70, FL90)
  2. Even flight levels (e.g., FL60, FL80, FL100)
  3. Any flight level, provided they maintain 2,000 feet vertical separation from oncoming traffic.
  4. Odd flight levels plus 500 feet (e.g., FL55, FL75, FL95)

Answer: A — Odd flight levels (e.g., FL50, FL70, FL90)

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