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Author Topic: Need BIG help with Gripen airfoil !!!  (Read 15715 times)

Offline #Leo#

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Re: Need BIG help with Gripen airfoil !!!
« Reply #12 on: November 12, 2007, 03:22:55 PM »
The data would be just for some work on college, for my collegium "Mechanics Of Flight"

Offline Cobra2

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Re: Need BIG help with Gripen airfoil !!!
« Reply #13 on: November 13, 2007, 08:01:47 PM »
Leo if you need a 3D of the Saab JAS-39 Gripen I would be glad to hook you up with over 5 3D models. You would need DNM Viewer to view them though...

Offline #Leo#

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Re: Need BIG help with Gripen airfoil !!!
« Reply #14 on: November 14, 2007, 09:34:20 PM »
Cobra2 --> please send them to me ..... if you can send them to lstipisic@gmail.com (first letter is small L) . thanx

Offline Cobra2

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Re: Need BIG help with Gripen airfoil !!!
« Reply #15 on: November 16, 2007, 04:12:41 AM »
They are NOT my models though, other people created them.

Offline valkyrian

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Re: Need BIG help with Gripen airfoil !!!
« Reply #16 on: December 05, 2007, 03:30:09 PM »
I bet Leo, you want to create a flight model and check your predictions with actual data.

What kind of airfoil Grippen uses is most unlikely to find. Even if you knew that it was a 64A series, it surely would be a modification to better suit Grippen's needs.

But u can easily find the aspect ratio (=span^2/wing area), taper ratio (chord at tip/ chord at root) fuel fraction (weight of fuel /total weight), u can have an accurate idea of T/W ratio and then "play" with the specific excess power equations, to predict (at a reasonable degree) the performance.


Offline Raptor

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Re: Need BIG help with Gripen airfoil !!!
« Reply #17 on: December 07, 2007, 04:27:46 AM »
valk-What happens if he doesn't have some of these figures?
-JCLim

Offline valkyrian

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Re: Need BIG help with Gripen airfoil !!!
« Reply #18 on: December 07, 2007, 08:48:05 AM »
Raptor my friend, these data can be found all over the internet.....

Offline Raptor

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Re: Need BIG help with Gripen airfoil !!!
« Reply #19 on: December 08, 2007, 09:14:50 AM »
Agreed. Leo, why don't you do an F-15 or something...?
-JCLim

 



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