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Old May 18th 13, 02:52 AM posted to rec.aviation.soaring
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Default Butterfly vario side-by-side with ClearNav vario

On Friday, May 17, 2013 6:20:24 PM UTC-7, wrote:
If you fly in to a thermal, the g meter increases. If you pull back on the stick the g meter increases. But the gyros can tell that the glider nosed up in the latter case. So, the vario can measure "netto g" if you will, the acceleration of the glider caused by changes in the surrounding air.


What happens when the flaps go positive?

Marc