Quote:
Originally Posted by Piwoslaw
Can any plane be retrofitted with those winglets?
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You'll find winglets on anything from low speed, straight-wing gliders to high subsonic swept wing commercial aircraft.
So yeah, just about any subsonic aircraft can use them.
Supersonic winglets and the like are still being researched.
Boeing, Airbus and some aircraft industry suppliers are introducing retrofit kits to keep older planes economically viable.