ORIGINAL: KitBuilder

A reduction in 3 oz per sq.ft. would require a total weight reduction of 15 ounces wich is substantial. I don;'t think the changes you listed will be enough to get you the 15 oz reduction you would need.

Convert sq in. to sq ft:
From the web, The plane has sq ft of wing at 716 sq in. / 144 sq inches 4.97 sg ft. of wing
Convert weight to ounces:
The web has the planes weight listed at 7.2 lbs x 16 oz = 115.2 ounces.

Divide total ounces (less fuel) by sg. ft. of wing to calculate wing loading per sq ft.
Weight of plane: 115.2 ounces ................. 112..............105 oz........... 100 oz
Wing loading: 23.17 oz/sq ft.....................22.53............21.12..... ........20.12


You can perform the above in one step (weight in lbs x 2304 (fixed constant) \ Wing Area in sq inches.

So (7.2lbs x 2304) / 716 = 23.16 oz the beginning number.

I got this info from the airfield models site... fantastic reference material convering many areas http://www.airfieldmodels.com/inform...urce/index.htm