Scale Nelitz 1/3 scale Cub build

[dhal22]

Modified parts of some of my Robart incidence meters to handle the big wing chord of the Cub.

 

[dhal22]

I set the main wing at zero and the horizontal stab at zero. The stab is adjustable.

 

[dhal22]

I used quick JB Weld to fasten the brass hinge parts

 

[dhal22]

 

[dhal22]

Starting to look like a fuselage. Its only been 5 years.........

 

[AKNick]

Five years in February you mean! easy now!

Look a lot like an airplane. . . have you mocked them all up to see it together for fun yet?

 

[TonyHallo]

Coming along nicely. I'm surprised the flat bottom wing as set at zero? I'm thinking more like +1 1/2 degrees.

 

[TonyHallo]

The plans for the Cherokee are still hanging in my shop. I had a look and the incidence is shown at 1.7 degrees positive. The airfoil is a semi symmetrical foil. I looked over the BUSA plans and instruction manual and did not find any mention of the incidence because the incidence is set with the fuselage parts and measurements from the manual. I think with your wind set at zero-zero you end up with a plane that flies with up elevator trim and not the way a normal Cub flies with it's tail riding high.
See the rigging instruction for full scale

 

[dhal22]

The plans for the Cherokee are still hanging in my shop. I had a look and the incidence is shown at 1.7 degrees positive. The airfoil is a semi symmetrical foil. I looked over the BUSA plans and instruction manual and did not find any mention of the incidence because the incidence is set with the fuselage parts and measurements from the manual. I think with your wind set at zero-zero you end up with a plane that flies with up elevator trim and not the way a normal Cub flies with it's tail riding high.
See the rigging instruction for full scale

Actually I didn't look. Was trying to see where the stab would in the future. I'll look now.

 

[dhal22]

Here's the instructions on the plans.

My A-B measurements are exact. So now to the stab area on the plans.