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Old Oct 06, 2012, 04:02 PM
Do it Right, the first time!
CoolerByTheLake's Avatar
United States, MN, Hermantown
Joined Dec 2008
5,160 Posts
sorry the link I posted is fixed. Just so I have this straight, my foam is 3" thick, so the center line is at 1.5", from LE to TE.

This is where i am confussed, you say: "attach the center rib to the core" then
" Using a protractor at the tip,draw a center line at 2 degrees,and locate the tip rib there."

Nor sure what you mean by center rib? Just have root and tip templates. In the link I posted, it does show the twist, but also shows LE below center line.

Sorry, just one of those days the old brain isn't working too well
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Old Oct 06, 2012, 04:53 PM
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epoxyearl's Avatar
United States, MD, Elkton
Joined Oct 2011
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Center rib =root rib.-my bad.
One more time...lol Draw a center line on each rib,front to back.(root,and tip)

At the root end of the core,fasten the template securely on the 1-1/2 in core centerline.

You're right-the leading edge should be at the same height at the center and tip. So the leading edge of the template will be at the 1-1/2 " line of the foam.
On the tip,raise the trailing edge of the template the amount you want it washed out.

But wait-is this a tapered wing?-Then the tip template needs to be moved back to the top view leading edge.,still with the same washout.
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Old Oct 06, 2012, 05:18 PM
Do it Right, the first time!
CoolerByTheLake's Avatar
United States, MN, Hermantown
Joined Dec 2008
5,160 Posts
This is exactly what I needed. I had thought this was correct, but just was not sure. thanks.

"So the leading edge of the template will be at the 1-1/2 " line of the foam.
On the tip,raise the trailing edge of the template the amount you want it washed out."

BTW this is for an F-86F . WS=65.65"
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Old Oct 06, 2012, 05:21 PM
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United States, MD, Elkton
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Okay-so you DO have a tapered wing...Are you comfortable with the top view description of the core layout?
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Old Oct 06, 2012, 06:30 PM
Do it Right, the first time!
CoolerByTheLake's Avatar
United States, MN, Hermantown
Joined Dec 2008
5,160 Posts
I am game!! Always nice to learn new things. Might pick it up faster!
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