With regards to Class F airspace labelled CYR, what are the entry requirements?

• A. Entry is always prohibited
• B. Permitted with prior approval
• C. Permitted with prior notification
• D. Only commercial aircraft are permitted

Answer: (B)

Class F airspace is designated as special use airspace, so it isn’t open to all traffic by default. To enter a CYR-labeled Class F area, you must obtain explicit permission from the controlling authority before you enter. This prior approval ensures that your operations won’t conflict with the activity inside the airspace and that the area can be safely managed. It isn’t just a courtesy notification, and it isn’t limited to only commercial aircraft; any pilot who plans to enter must have this authorization. In practice, you’d contact the appropriate air traffic or flight information service to obtain the necessary approval before your flight.