EcoGeek – 
Many people are very familiar with the V formation used by migrating flocks of birds, and scientists have determined that this is an efficient mode of travel which helps the birds conserve energy, especially on long migratory journeys. But the same concept is being considered to improve the efficiency of commercial jetliners.
Among aircraft manufacturers, Airbus is one of the companies looking at the advantages of commercial flocking. “In a V formation of 25 birds, each can achieve a reduction of induced drag by up to 65 per cent and increase their range by 7 per cent. While efficiencies for commercial aircraft are not as great, they remain significant.”
It is possible that, in the future, commercial flights might flock together in this way to save fuel. The initial tests of this approach might be carried out with trans-ocreanic flights originating in separate Australian cities which would coordinate their schedules and meet up in order to cross the Pacific together, before they “peel off and head to their separate destinations.”
image credit: Airbus
via: Quirks & Quarks
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