FRZ Boundaries for Aerodromes Without an ATZ

Verified from official sources
Article 94AVersion 1Effective -Verified 21 August 2026

In plain language

For protected aerodromes without an ATZ, the FRZ is a circle with a 2 nautical mile radius centered on the mid-point of the longest runway, extending from the ground up to 2,000 feet.

Requirement as structured

Defines the flight restriction zone for a protected aerodrome without an aerodrome traffic zone (ATZ) as a cylinder extending from the surface to 2,000 feet above aerodrome level, with a 2 nautical mile radius centered on the longest runway's mid-point.

Original regulatory text

The flight restriction zone of a protected aerodrome consists of the airspace extending from the surface to a height of 2,000 feet above the level of the aerodrome within the area bounded by a circle centred on the notified mid-point of the longest runway and having a radius of two nautical miles.

Applies when

country
United Kingdom
regulatory category
General