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Old 29th Dec 2015, 10:01
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Ultralights
 
Join Date: Dec 2000
Location: Sydney NSW Australia
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actually all DJI multirotors have barometric pressure altimeters. when powered up, they record the QNH, and using GPS, can tell their altitude quite accurately. just how accurate is the 45 yr old altimeter in most GA bugsmashers today?
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