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.
A published altitude representing the maximum usable altitude or
flight level for an airspace structure or route segment. It is the
highest altitude on a Federal airway, jet route, area navigation
low or high route, or other direct route for which an MEA is
designated in 14 CFR Part 95 at which adequate reception of
navigation aid signals is assured.