Remove Airplanes Remove Altimeter Remove Groundspeed
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Understanding pressure altitude and GPS altitude in aviation apps

iPad Pilot News

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
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My Near Death Experience

Air Facts

At the current groundspeed, I believed it shouldn’t be of much concern unless the cell began producing lightning. As the airplane passed by the approach end of runway 6 a few strange wispy “ripped up” small pieces of clouds appeared off to the left. The lone shower to the southwest appeared larger and drifting slowly northeast.

Descent 71
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Budget Buys and Early Bye-Bye’s

Air Facts

The Warrior has introduced countless people to the joys of light airplanes. Let’s break it all down here: 400 feet of ceiling (broken/ overcast/obscured) means that you’ll remain under that cloud deck until your altimeter reads 5,200 feet and you will also need to have 2-1/4 miles of visibility. It quite literally did happen to me.