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Old Nov 15, 2011, 11:27 PM
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yyz
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USA, CA, Paso Robles
Joined Dec 2004
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Quote:
Originally Posted by ThermalSeeker View Post
I took a shot at the gross weight of your glider at 1/3.5 scale.

Per the rules cited above

Gross weight =
11.5*Original Wing Area/((((Square Value of scale factor/9)-1)/1.2)+1)/9

Assuming the wing area is supposed to be in Meters squared and an asw-22 BL at 26.5 meter span having 16.3 meters squared wing area

Assuming the scale factor of 3.5
Assuming the finish weight is in kg

I get 16kg or 35 lbs for a max weight.
At 14.28 ft sguared that's a 39oz/ft sq wing loading at max weight.

If my assumptions above are right, that ship ought to scream when fully ballasted up, if you can climb.

Mike
Mike,

I'm building the stretched ASW22 DB (28 meter) version so I get a bit more area. All of the XFLR polars are calculated at 10 and 15 kg AUW.

Mike
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