Boeing 737-800 wings?

Question

I flu on a Boeing 737-800 and noticed that the far part of the wings are bent upwards.

Can anyone explain it to me, in words I can understand?

Thank you

Answer 1

In basic basic terms in increases the efficiency of the wings. Allowing them to be shorter and not have to be i.n an extended position. When you do all this you save fuel which in turns saves the airlines money which is the true reason for their existence

Answer 2

For the flaps 2 worrk

and so they dont snap!!

Answer 3

They just recently dicovered that the bent tips provide an extra 25 mph

Answer 4

Wingtip devices are usually intended to improve the efficiency of fixed-wing aircraft.[1] There are several types of devices, and though they function in different manners, the intended aerodynamic effect is to modify the aircraft's wake in some beneficial manner. Wingtip devices can also improve aircraft handling characteristics. From a marketing standpoint, they are also valued for their aesthetic appeal, and aircraft have been equipped with them for cosmetic reasons as well.

Such devices increase the effective aspect ratio of a wing, with less added wingspan. An extension of span would lower lift-induced drag, but would increase parasitic drag, and would require boosting the strength and weight of the wing. At some point there is no net benefit from further increased span. There may also be operational considerations that limit the allowable wingspan.

The wingtip devices increase the lift generated at the wingtip, and reduce the lift-induced drag caused by wingtip vortices, improving lift-to-drag ratio. This increases fuel efficiency in powered aircraft, and cross-country speed in gliders, in both cases increasing range.[1]

Answer 5

It is called a winglet. Due to the pressure differential created by the wing when it is generating lift, there is a vortex formed. This vortex is called wake turbulence, and it comes off the wingtip. This wake turbulence causes drag, and the winglet deflects this vortex upward and away from the wingtip, eliminating drag, and increasing fuel efficiency.