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Tail wing

Old 04-20-2012, 05:03 PM
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pepcid
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Default Tail wing

Do you haft to have flaps on the tail wing? I am making my own plane and the front wings are large.
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Old 04-20-2012, 05:46 PM
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Turner
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You have to have some way to control pitch. This is usually done with a control surface at the trailing edge of the horizontal stabilizer called the elevator.

http://en.wikipedia.org/wiki/File:ControlSurfaces.gif

[media]http://upload.wikimedia.org/wikipedia/commons/b/b8/ControlSurfaces.gif[/media]
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Old 04-20-2012, 05:52 PM
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A little more information would be helpful. Are you attempting to build a traditional design or something different, perhaps with a canard in front?
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Old 04-20-2012, 05:59 PM
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traditional it will have large flaps on the front wings 5 in. by 20 in. wingspan
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Old 04-20-2012, 06:39 PM
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Given your wing dimensions, your plane's wing area will be 100 sq.in. which seems fairly small to implement flaps or ailerons. For planes of this size, rudder/elevator control with appropriate wing dihedral might be the best way to go.
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Old 04-20-2012, 07:06 PM
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opps i ment to say 5 in. by 40 in. wingspan sorry
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Old 04-20-2012, 07:08 PM
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Originally Posted by pepcid View Post
traditional it will have large flaps on the front wings 5 in. by 20 in. wingspan
That's shrunk some.. it was 40" span in your last thread

Anyway, basically unless you have something quite unusual in mind: 'Yes' you need moving surfaces on the tail, they are called elevators.

I think if you want to design your own plane then you need to get your head around some of the basics of airplane design otherwise you are going to be guaranteed disappointment.

Steve
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