why do the birds fly in V format
Answers
Explanation:
A new study of ibises finds that these big-winged birds carefully position their wingtips and sync their flapping, presumably to catch the preceding bird's updraft—and save energy during flight. ... Squadrons of planes can save fuel by flying in a V formation, and many scientists suspect that migrating birds do the same.
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Answer:
Scientists discovered that birds at the back of the V have slower heart rates and flapped less often.According to researchers, the birds mostly fly around a meter behind and a meter off to the side upfront. Now when the bird in front flaps its wings a vortex of air directly behind is pushed downwards which is called downwash.
This creates a pressure difference. Due to this, the air below the wings is of higher pressure than the air above the wings. And as usual, the air moves from the region of higher pressure to the region of lower pressure to the upward direction which is called upwash.Now the bird situated in another bird’s upwash has to spend a lot less energy to fly since they are already being pushed upwards by the upwash of the bird in front of it.
The V-Formation of birds situates each member back and to the side directly in its neighbor’s upwash. The pressure difference increases as we go at the end of the V-Formation, so the birds at the back spend very less energy than birds upfront. This formation also helps fighter aircraft to improve their fuel efficiency.