Nonradar protected airspace for a departure is defined as which of the following?

• A. A 6 NM circle around the airport
• B. A 4 NM arc around the airport and 4 NM either side of the route of flight
• C. A 8 NM path corridor
• D. The entire airspace within 50 NM

Answer: (B)

Nonradar protected airspace for a departure is the safe corridor used when radar separation isn’t available, ensuring predictable guidance and obstacle clearance. It is defined as a 4 nautical mile arc around the airport plus 4 nautical miles on either side of the published departure route. This combination creates protection near the runway and along the initial departure path, giving pilots and controllers a known area to maintain separation in nonradar environments. The other options don’t match how nonradar protection is arranged: it isn’t a full 6 NM circle, nor a simple 8 NM-wide path alone, nor the entire airspace out to 50 NM.