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Old Jul 30, 2010, 10:36 PM
smashrc is offline
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On the airplane front wing it is a fin that can move up and down. What does it call?


On the airplane front wing (the biggest wing) it is a fin that can move up and down. What does it call?
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Old Jul 30, 2010, 10:54 PM
speedy72vega is offline
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I think you mean the Ailerons. They are on the trailing edges of the wing, and cause the plane to roll.
Old Jul 30, 2010, 10:58 PM
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Could be Cunards, i think thats how you spell it.
Old Jul 30, 2010, 10:59 PM
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On some real aircraft, the front part of the wing will also deflect. Slats are used at takeoff and landing to produce additional force.
Old Jul 31, 2010, 08:14 AM
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It's a canard.


http://en.wikipedia.org/wiki/Canard_(aeronautics)

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Old Jul 31, 2010, 10:27 AM
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English language is interesting indeed. I have no idea why, but when I see "fin", I immediately think of a vertical plate, not a horizontal one. I have been too lazy to look up the definitions.

Les
Old Jul 31, 2010, 10:34 AM
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You're correct, Les. The fin is called the "vertical stabilizer" on the diagram. I figure if FIN is good enough for sharks, it's good enough for me.

howell
Old Jul 31, 2010, 10:39 AM
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I would think he is taking about the slats on the leading edge of the wing.

Fin - Flipper - Flipflops ,,,, is that the progression.
Old Aug 01, 2010, 08:32 AM
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Quote:
Originally Posted by speedy72vega View Post
I think you mean the Ailerons. They are on the trailing edges of the wing, and cause the plane to roll.
this is what he is asking about, the ailerons
Old Aug 01, 2010, 10:24 AM
NoFlyZone is offline
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Quote:
Originally Posted by smashrc View Post
On the airplane front wing (the biggest wing) it is a fin that can move up and down. What does it call?
This rules out Cannards (I think) since the biggest wing is in the back. Leading edge slats seems like the thing he's asking about. I think. Or I guess I think. I have no idea.
Old Aug 01, 2010, 12:37 PM
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Ailerons. READ the question.

mw
Old Aug 01, 2010, 11:02 PM
Lou is offline
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Quote:
Originally Posted by mark wood View Post
ailerons. Read the question.

Mw
I did. But I still wonder what kind of fin moves up and down. Fins normally are considered to move to the left and right. Flippers normally are considered to move up and down. As do elevators and ailerons.

Even then I still wonder about the front wing statement. Is the op speaking of two wings? One in the front and one in the rear. Would that be a biplane?

Or perhaps it is a question about canards, as they do have an up/down movement similar to elevators and ailerons.

Maybe I am just a dullard?
Old Aug 02, 2010, 01:51 AM
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Occam's Razor..... The simplest explanation is usually the correct one.

With a foreign language as his/her primary and english secondary ("What does it call?"), and without apriori knowledge of an airframe, he/she's describing ailerons.
Old Aug 02, 2010, 12:05 PM
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I have known a lot of English speaking people who are unfamiliar with aircraft terminology call the wing and horizontal stabilizer the front wing and the back wing. And they usually refer to all of the control surfaces as those flap thingies. So I do not find it surprising for a person with minimal command of the English language refering to an aileron as a fin that moves up and down on the front wing.

And it might surprise People who are familiar with aircraft terminology and whose primary language is English that they can speak a little bit of French. Aircraft terms such as fuselage, empenage, decalage and aileron are all names for various aircraft parts and configurations that came from the French language.

Larry
Old Aug 02, 2010, 02:54 PM
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I believe the OP is referring to wing slats, not ailerons. You see them on some large jet passenger aircraft.

They extend out of the leading edge of the wing. They improve what is referred to as the boundary layer airflow over the wing, in essence keeping the air close to the wing tight and giving better lift.

See this wiki for a more detailed explanation and more pictures.

http://en.wikipedia.org/wiki/Leading_edge_slats

I just realized the last time I thought about the physics of slats was about 1974 when I was an airframe apprentice


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