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Constant chord wing query

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Old 08-07-2012, 11:02 AM
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moggyman64
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Default Constant chord wing query

Hi All,

I have purchassed a plan of a 78" wingspan Katana, on the wing plan there are 2 different wing types. One is for a constant chord wing and the other is for a tappered chord wing. My query silly as it may sound is what is the difference between the two and how do they effect the flight.

Regards

keith
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Old 08-07-2012, 12:01 PM
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Default RE: Constant chord wing query

Great question. I have an uneducated opinion that I'll keep to myself. Looking forward to some experts "sharing".


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Old 08-07-2012, 01:39 PM
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Default RE: Constant chord wing query

Constant chord wings have better stall and post-stall characteristics but poorer roll rates and have poor snap characteristics. Think of military warbirds in combat. They all have tapered wings. I would think it is more difficult to design a tapered wing with good stall and post-stall characteristics, but well designed tapered wing will have better roll and snap characteristics.

My two cents.
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Old 08-07-2012, 01:48 PM
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Default RE: Constant chord wing query

That sounded good to me.
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Old 08-07-2012, 01:57 PM
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Default RE: Constant chord wing query

Thanks ggraham500 that does make a lot of sense. So I will use the tapered wing section then.

Regards

keith
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Old 08-07-2012, 03:30 PM
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Default RE: Constant chord wing query

Apicture - two different tapers
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Old 08-07-2012, 07:03 PM
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Default RE: Constant chord wing query

Great experiment! Build both wings then report your findings to see if they agree with published data.
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Old 08-07-2012, 07:46 PM
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Default RE: Constant chord wing query

Dang Jim, your getting good with those drawings, I have a hard time posting photos still!!
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Old 08-08-2012, 04:43 AM
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Default RE: Constant chord wing query

Thanks for the interesting comments and there was me thinking that it was a silly question.

Build both wings now there's a thought, hmmmm. that would be one way to determine what the different flyingcharacteristics would be.

regards

keith

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