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Remove Airplanes Remove Groundspeed Remove Indicated Airspeed
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Understanding pressure altitude and GPS altitude in aviation apps

iPad Pilot News

AUGUST 20, 2024

The panel in your airplane shows indicated airspeed (IAS, derived from the pitot tube on the wing), while the iPad shows groundspeed (derived from the GPS in your ADS-B receiver or iPad). ” Groundspeed is helpful for estimating your time en route, but it is affected by wind and other factors. Confused yet?

Altimeter 111
Altimeter Indicated Airspeed Pitot Tube Groundspeed 111
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Danger lurks in circling approaches

Air Facts

MAY 10, 2024

A perfectly good airplane with everything operating as expected. What specific indicated airspeed will be flown/adhered to during the circling maneuver? The rule of thumb is VSI = ½ groundspeed times 10. A high degree of pilot proficiency, competence as well as currency (currency in Circling Approaches specifically).

Approach 70
Approach AGL Descent Runway 70
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