If radar is available, what is the minimum radar separation required for a BE36 to depart behind an MD11?

• A. 3 NM
• B. 4 NM
• C. 5 NM
• D. 6 NM

Answer: (C)

The minimum radar separation required for a BE36 to depart behind an MD11 is 5 nautical miles. This standard takes into account the wake turbulence characteristics generated by larger aircraft, such as the MD11, which is classified as a heavy aircraft.

When a heavy aircraft like an MD11 takes off, it produces significant wake turbulence that can be hazardous to smaller aircraft following closely behind. The separation distance is determined by safety protocols that are designed to minimize the risk of wake turbulence encounters. In this case, the BE36 must be spaced appropriately to allow for this turbulence to dissipate before the smaller aircraft takes off.

Adhering to this 5 NM separation helps ensure safe flight operations and is part of the overall strategy in air traffic control to mitigate hazards associated with wake turbulence.