Curt Burris
Member
Due to the warm reception to the site, I've included this chart to determine the pressure altitude adjustment for the subsequent, modified airplane, flight. If the temperature of the baseline flight is 3 degrees lower than the test article flight at 3,000 ft, then altitude should be adjusted down by 200 ft for example. This allows for the air mass warming up during the day, and provides more accurate speed assessment of the modifications since sensitive altimeters found in airplanes are temperature compensated.
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