¶ Introduction
Minimum flight altitudes are created first to ensure safety, awareness and adequate radio navigation reception for aircraft flying at the same time in specific airspaces or on ATS routes.
A pilot shall respect them as mandatory because they ensure the proper flight operation in different airspace or ATS routes (mountainous, hazardous...).
Pilots should be aware of the meaning of "Altitude or Height"; we can define it as the elevation from a ground reference point. At the same time, there are several types of altitudes that pilots should be familiarized with:
- Indicated altitude: The altitude that the pilot is able to read at the altimeter.
- True altitude: the expressed altitude in terms above the sea level.
- Height: the altitude in terms of distance above a certain point.
¶ Minimum En-route Altitude (MEA)
Minimum En-route Altitude named MEA is the altitude for an en-route segment that provides adequate reception of relevant navigation facilities and ATS communications complies with the airspace structure and provides the required obstacle clearance.
Pilots should know that MEA will assure:
- proper reception of navigation aids
- two-way communication with ATC
- safe clearance or margin from obstacles
- adherence to ATC or local procedures
- None
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