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Be safe and happy Sweet Niner! Bon voyage! E9 Eaglet, 123 Days Old.
P. S. : "Do not be sad my friends. Birds have what we will never have, which is complete freedom... "
P.P.S.: Why do eagles fly in circles? Eagles fly in circles for the same reason that glider/sailplane pilots do: they are trying to stay inside a thermal to gain height without effort.
On a sunny day the earth is heated unevenly. Darker areas tend to get warmed more so the air over these areas rises. This rising air is called a thermal and is sometimes marked visibly by a small cumulus cloud at the top. You find thermals over built up areas, parking areas, large buildings and so on.
When you are flying in a straight line you feel these thermals as bumps and if you are flying a powered aircraft you fly straight through them. Soaring pilots, eagles and other birds turn when they feel a thermal, trying to remain inside all the time.
Inside the thermal the eagle is actually gliding downward but the air is rising faster so it slowly gains height. Quite heavy sailplanes can rise at 5ms-1 in a good thermal.
(Andrew Hennigan, Pilot of gliders, light and ultralight aircraft)
Video captured and edited by sperantaexista1. Thank you for watching!
Southwest Florida Eagles. Link to Southwest Florida Eagle Cam: www.dickpritche...
Music: Enya - "If I Could Be Where You Are"
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