Surely you realizedás at once of some protruding elements at the tips of the wings, These are called winglets and their objective is very interesting.
post writer by: Juan Matheus
Coming to our third between on the ¿becauseé airplanes fly?, we will analyze the part tétechnique, but in a very private wayáethical and understandable those that beautiful winglet, that más of ser iséticos, has a goaláIt's important, which is to protect the economyíto the aerosolídenies.
Winglets
We have mentioned several times that the flow of air passing throughés from a grandfather's wingón generates one áevil of another presión and one low. These two regions are located at the tips of the wing, where it ends. This generates vorticity., a fenóunless it in turn increases the resistance of the air to movement or drag force. The winglet is a curved element that protrudes from the tips of the wings of some aircraft.. While it is not a crucial element in the operation of an aircraftón its goal is to reduce the vorticity at the wingtips that requires burning más fuel to obtain the same cruising speed. Spaghettién allows to fly más ráI ask, but the aerosolsícompanies prefer them because of the savings they generate.
Manufacturers have made them in various ways such as the Airbus Sharklet in its A320Neo family or the very complex Split Scimitar Winglet of the Boeing 737 MAX (spaghettién available in the NG). Other aircraft mámodern cars like the Boeing 787 DREAMLINER have eliminated the need for the winglet by using composite materials that allow a wing with a very pronounced curvature and arc..
The “wingtip device” as it is known in español it may be a very b pieceáHowever, it has been calculated that the reductionón of fuel consumption isá in the order of 3%. Doesn't seem to be relevant, However, Fuel consumption costs are one of the most important variables.áimportant issues that airlines must deal withílines and on long-haul flights can make a big difference. Such is soí that its development was driven by NASA studies during the yearsños 70, where the petr pricesóleo shot.
All the time manufacturers areán designñI'm going and trying new designsñwinglets which requires in-depth knowledge of aerodynamicsámica and should be tested on túwind turbines to verify their efficiency. That is why we see that the different generations of the same model can be differentiated by the shape of their winglet. (tip para spotters). In models like the Boeing 757, many aerosolsíneas added them lateréyes and they don't seeíand the fáwork but helpó to continue to be profitable to have them in your fleets.
¿Becauseé a 777 does not have them? Its wing is too long and its effect, smaller.
Don't miss the fourth part of this special very soon.
