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Non Diving Posts: Discuss Plane related question in the Non-Diving Related Forums forums: Knowing there's a few Aeronautical people on here, I thought I'd ask. What are the upturned bits on the end ...

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Old 09-04-08, 06:09 PM
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Plane related question
Knowing there's a few Aeronautical people on here, I thought I'd ask.

What are the upturned bits on the end of planes wings for ? The bit that's at 90 deg to the wing, like on a 747 etc.

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Old 09-04-08, 06:15 PM
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Old 09-04-08, 06:19 PM
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They're called winglets.

In laymans terms:

The tips of a "normal" wing create drag. Drag reduces your speed and increases your fuel consumption. Winglets alter the airflow over the wingtip and help to provide "clean" air rather than "turbulent" air over the wingtip. This in turn decreases drag and reduces fuel consumption by up to 30% in some aircraft. So it's quite a financial saving as well as environmental etc.


There was good money fitting them a few years ago. A contractor could expect to take home £2k a week if a pair were fitted in under a week!
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Old 09-04-08, 06:21 PM
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Thank you.

The suggestion was made to me it was stability, bit like the way eagles wings turn up at the end.

Fountain of knowledge YD, I love the place.

Have a green.
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Old 09-04-08, 07:55 PM
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They stop the bernoullis from falling off the edge of the wing
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The aircraft limits are only there in case there is another flight by that particular aircraft. If subsequent flights do not appear likely, there are no limits.
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Old 09-04-08, 08:06 PM
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Is it not to make the wingspan the standard width of a UK house then?



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Old 09-04-08, 08:08 PM
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Wingtip device - Wikipedia, the free encyclopedia
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Old 09-04-08, 08:12 PM
small strokes fell mighty oaks
  

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Quote:
Originally Posted by GLOC
They stop the bernoullis from falling off the edge of the wing
they also provide a bit of extra lift to cart round fat b*stard aircrew
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Old 09-04-08, 08:15 PM
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Quote:
Originally Posted by GLOC
They stop the bernoullis from falling off the edge of the wing
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