wing loading

Need technical help on some problem? Let us know and we will see what we can do
terence seymour
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Joined: January 27th, 2013, 4:18 pm
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wing loading

Postby terence seymour » May 11th, 2014, 5:20 pm

G'DAY Can anyone supply me with the formula to calculate wing loadings, I have almost completed
a blohm/voss ha 139 with 4 15cc petrols in a 8Ft wing, The aircraft is built from a set of plans
designed for electric motors so air frame has been upgraded to suit the use of petrols and additional parts I would appreciate any help thanks TERRY.


terence seymour
Posts: 10
Joined: January 27th, 2013, 4:18 pm
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Re: wing loading

Postby terence seymour » May 13th, 2014, 10:20 am

G,day Alan thanks for your reply and info I have done the calculations have now given myself more worries that aircraft could be on the heavy side ? once again thanks for info TERRY.

David Brown
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Location: Burton-on-Trent
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Re: wing loading

Postby David Brown » May 15th, 2014, 4:54 am

Hi Terence, I tried the calc's as well and it gave my wing loading high, nearly double what they suggested, and my aircraft is within the designers weight range so something is wrong some where.

Dave


Alan Cantwell 1131
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Re: wing loading

Postby Alan Cantwell 1131 » May 15th, 2014, 9:24 am

or
EXAMPLE, and its not mine
To calculate wing loading, multiply the weight in ounces by 144, then divide by the wing area in square inches. This will give you the wing loading in ounces per square foot. The 144 is the conversion factor for square inches to square feet.

Your wing loading will be 19 to 21 ounces per square foot.

Clive Hall
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Joined: August 19th, 2011, 5:34 pm
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Re: wing loading

Postby Clive Hall » May 29th, 2014, 8:47 am

There is a lot more to the assessment of model performance than simple wing loading.
Try this link, it covers the interesting subject of wing cube loading very well.

http://www.theampeer.org/CWL/reynolds.htm

I should add that WCL enables comparison of models that differ greatly in size.


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