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Old 4th Dec 2018, 16:21
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sleeve of wizard
 
Join Date: Aug 2007
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To further expand on what Roo has said.
RECMD is constantly updated, and calculates the Optimum FL at your current position with a range of 250nm (NAT HLA / 1000ft), 333nm (RVSM/ 2000ft) or 500nm (ICAO/4000ft)
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