What is a Minimum Vectoring Altitude (MVA)?

Minimum Vectoring Altitude (MVA) is specifically defined as an unpublished altitude that represents the lowest altitude at which air traffic control (ATC) can safely vector aircraft. This altitude ensures that aircraft have adequate terrain and obstacle clearance while being guided by ATC. The MVA is critical in providing a buffer for safety during vectoring, especially in areas with variable terrain features.

Understanding MVA is important for pilots as they rely on ATC for safe navigation and maneuvers in complex airspace. The distinction of it being unpublished sets it apart from other altitude requirements that may be indicated on charts. Therefore, it is not necessarily marked on operational charts but is a part of ATC’s own procedural guidelines for managing air traffic.