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Determining high point from flight recorder data
So you fly a great XC and download the flight recorder
data. See You shows a trace and the question arises.... DID I go over 17,999'? Who has the procedure to use to determine this from flight recorder data? Does the procedure take into consideration instrument error? Yes! But how? Does the procedure correct for non-standard pressure? Yes! But how? |
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Determining high point from flight recorder data
Sam Discusflyer wrote:
So you fly a great XC and download the flight recorder data. See You shows a trace and the question arises.... DID I go over 17,999'? Who has the procedure to use to determine this from flight recorder data? Does the procedure take into consideration instrument error? Yes! But how? Does the procedure correct for non-standard pressure? There is no need to correct for non-standard pressure, assuming you mean "non-standard pressure variations of the atmosphere". The 18,000 foot ceiling is not measured by actual distance, but by a pressure instrument: your altimeter. You only have to account for it's pressure measuring error, not the variation of the atmosphere from "standard". It can show 18,000' while your actual height can vary by a 1000' or more from 18,000', as you can see from the GPS altitude. -- Eric Greenwell - Washington State, USA Change "netto" to "net" to email me directly "Transponders in Sailplanes" on the Soaring Safety Foundation website www.soaringsafety.org/prevention/articles.html "A Guide to Self-launching Sailplane Operation" at www.motorglider.org |
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