Aero-Terms!

Aero-Terms are designed to be a daily reminder of the terms, names, acronyms and explanations of the unique language that populates the aviation world. Aerospace, sport aviation, fixed wing, helo, you name it... it's all fair game.

Aero-Terms should serve as a quick but intriguing reminder of the terms you may use every day, or an introduction to an aspects of the Aero-World you may not yet be familiar with. ANN also encourages readers to go beyond the FMI link, and further research any intriguing terms.

Suggestions for future Aero-Terms are ALWAYS welcome, as are additions or discussion of the explanations given for each Aero-Term.

POFZ- Precision Obstacle Free Zone

A section  of airspace above an area beginning at the runway threshold, at the threshold elevation, and centered on the extended runway centerline. The standard Precision Obstacle Free Zone - POFZ is 200 feet long and 800 feet. The POFZ must be clear when an aircraft on a vertically guided final approach is within 2 nautical miles (NM) of the runway threshold and the reported ceiling is below 250 feet or visibility less than 3/4 statute mile (SM) (or runway visual range below 4,000 feet).

FMI: http://aviationglossary.com/pofz-precision-obstacle-free-zone/