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Minimum obstacle clearance altitude (MOCA), an altitude which provides a predetermined vertical clearance from known obstacles within a predetermined corridor along the specified flight segment. For a published procedure, the greater of these two altitudes is the altitude which must be adhered to during that segment, and is called the Minimum ...
In aviation, minimum reception altitude (MRA) is the lowest altitude on an airway segment where an aircraft can be assured of receiving signals from off-course navigation aids like VOR that define a fix. An MRA is determined by FAA flight inspection traversing an entire route of flight to establish the minimum altitude the navigation signal can ...
In the absence of an ATC assigned or advised route, the pilot will follow the route set down in the flight plan. Altitude – The pilot will continue at the highest of the following altitudes or flight levels: The altitude assigned in the last contact with ATC before loss of communication; The minimum altitude for IFR operations;
Minimum en route altitude (MEA), [1] alternately spelled as Minimum enroute altitude, [2] is the lowest published altitude between radio navigation fixes that assures acceptable navigational signal coverage (see MRA) and meets obstacle clearance requirements (see MOCA) between those fixes.
ATC will assign altitudes in its initial clearance or amendments thereto, and navigational charts indicate minimum safe altitudes for airways. [ citation needed ] The approach portion of an IFR flight may begin with a standard terminal arrival route (STAR), describing common routes to fly to arrive at an initial approach fix (IAF) from which an ...
This instrument flight rules chart shows low-altitude airways in the Oakland Area Control Center (near San Francisco, California). In the United States, airways [1] or air routes are defined by the Federal Aviation Administration (FAA) in two ways: "VOR Federal airways and Low/Medium Frequency (L/MF) (Colored) Federal airways" [2]
Between the surface and an altitude of 29,000 feet (8,800 m), no aircraft should come closer vertically than 300 metres, unless some form of horizontal separation is provided (Note: for countries that measure altitude in feet, a 1,000 feet minimum is observed rather than the 984.252 feet found in 300 meters).
Download as PDF; Printable version; ... Flight level; H. ... Minimum crossing altitude; Minimum en route altitude; Minimum obstacle clearance altitude; Minimum ...