trying2fly
I have noticed that the wing tips on the grounded 737 passenger aircraft are flared???  Part of the wing tip goes up and at the same junction a part of the wing tip  goes down.  Anyone know what the purpose of this wing design ?  Thanx!!
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bogusbandit56
trying2fly wrote:
I have noticed that the wing tips on the grounded 737 passenger aircraft are flared???  Part of the wing tip goes up and at the same junction a part of the wing tip  goes down.  Anyone know what the purpose of this wing design ?  Thanx!!


It makes for a much more efficient wing.
Best thing is to read up on them here. https://en.wikipedia.org/wiki/Wingtip_device
Wot, no Depron?
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Wildthing
I don't know if they work but they look cool 🙂 
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bogusbandit56
Wildthing wrote:
I don't know if they work but they look cool 🙂 


Richard Vogt was the chief designer at Blohm and Voss aircraft during the war and he went to USA under operation paperclip. He was the man responsible for research and development the winglet at Boeing.
He was the guy that designed this plane., although it didn`t fly in reality I`m sure it would have if the war had gone on longer.

Wot, no Depron?
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quorneng
I don't think Boeing or any other commercial air plane manufacturer would put on such wing tips just for show. There is no common standard design as it depends on the nature of the wing and the planes cruising speed but the improvement is relatively small and only shows a net gain in performance over their weight and drag at the planes cruising speed so don't expect them to have much benefit if any on scale models!
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solentlife
I find it interesting that Boeing is often cited as the innovator of Winglets on tips. They'll be claiming they invented refrigderators next. Airbus was seen more often with them in the early days of their coming into general use.
Airbus claim it cured a small problem on the A380 ... allowed them to reduce the wing area .... but I find that hard to swallow ... marketing hype I reckon.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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