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Minimum Sector Altitude
aeron., abbr.
MSA
minimum sector altitude
avia., Canada
The lowest altitude that will provide a minimum clearance of 1000 ft under conditions of standard temperature and pressure above all objects located in an area contained within a sector of a circle with a 25 NM radius centred on a radio aid to navigation or a specified point
Minimum:
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Education
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International trade
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United States
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