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#3
July 16th 20, 05:28 AM
posted to rec.aviation.soaring
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How accurate are the OLC AGL traces?
On 7/15/20 7:34 PM, MNLou wrote:
Hi Nick - When I want to analyze a flight from OLC, I download the IGC file and open it in See You. I think the AGL numbers are See You are more accurate than from the OLC summary. YMMV - Lou The barometric sensor in the logger is going to be assuming 29.92 inches of mercury for atmospheric pressure, any deviation from that is going to introduce an error on top of the instrument accuracy. So the AGL calculations can be off quite a bit no matter what database is used for ground elevation.. 
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