Remove AGL Remove Groundspeed Remove Knot
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Riding the Mountain Waves

Plane and Pilot

FAA weather charts can help for higher altitudes but when just a few thousand feet agl, they may be less useful. Eighty-knot tailwinds aloft and higher-than-normal temperature difference between the surface and aloft. I made a lazy turn away, lowered the nose slightly, airspeed thankfully increasing. So why was that flight so rotten?

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How to fly a rectangular course

Flight Training Central

The airplane will be flown at 1,000’ AGL parallel to and at an equal distance from the field boundaries – about ½ – ¾ miles from the boundary as you would fly a traffic pattern. The entry into the maneuver should be accomplished downwind as you would enter the traffic pattern where groundspeed will be the greatest.

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FAA Updates Datalink Weather Advisory Circular

iPad Pilot News

The AC states limited coverage below 5,000′ AGL, but in our experience you should start getting reception within 1,000′ AGL in all but the most remote or mountainous regions. For example, ground-based systems that require a line of sight may have relatively limited coverage below 5,000 feet above ground level (AGL).

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