I should be working more, but instead I've been doing covering weight calculations.

First, this is how I estimate the total amount of covering material required for the TF Corsair...

700 sq-in Wing top
700 sq-in Wing bottom
1100 sq-in Fuse (estimate with 50" long cylinder with 7" diameter = 2 x PI x 3.5" x 50")
500 sq-in Tail surfaces (estimate)
------
Total estimate =3000 sq-in = 2.3 oz/sq-yard

A typical colour monocote is about 7 grams/sq-ft = 2.2 oz/sq-yard. So the total monocote weight should be about 5 oz.

I've read a typical glassed and painted covering job is estimated about 4 oz/sq-yard. I hope this is for a epoxy/resin method. I'm using .56 oz/sq-yard fiberglass and water-based polyurethane. Maybe it might be lighter, but we'll use the 4 oz/sq-yard for now. Total glassed/painted weight should be 9.2 oz.

So maybe I can still meet my 10 lb goal. Maybe I'll be a little over if I take in to account the weight of glue for hinges and other unforseen stuff.

I didn't think the covering would be so light. Come to think of it, my numbers go against the general understand that "a glassed and painted covering will add 2 lbs". Can you guys see anything wrong with my math?

Juice