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safe altitude 100 NM
avia., Canada	altitude de sécurité 100 NM
English thesaurus
safe altitude 100 NM
avia., Canada	The lowest altitude that may be used under instrument meteorological conditions IMC that will provide a minimum clearance of 1000 ft or, in a designated mountainous region, 1500 or 2000 ft, as appropriate, rounded up to the next 1OO-ft increment, under conditions of standard temperature and pressure, above all obstacles located in an area contained within a radius of 100 NM of the aerodrome geometric centre