Curtiss Jenny Restoration

Welcome! We hope you enjoy following the restoration process of a 1918 Curtiss JN4D Jenny. Once completed, the aeroplane will be flown and displayed at the Candler Field Museum in Williamson GA (30 miles south of Atlanta). You can contact me below by clicking on "VIEW MY PROFILE"

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Location: Peachtree City, Georgia, United States

Thursday, April 21, 2011

Wires and King Post fitting

We have now begun building wires - lots of them. Brian Eberle built five last night. Here is a picture of the double flying wires.

At the top.

Also spent some time working on the king post fittings. The flat stock as to be curved to accept a connecting rod and a turnbuckle end.

We did this by taking some flat stock the thickness of the turnbuckle end and round stock the diameter of the rod, heating the fitting with the torch and tapping with a ball peen hammer.

The fitting is held in place by a piece of tubing which fits into a slot in the king post. I got some 5/16 tubing and peened over the end.

Here is the completed end. This tube will be inserted into the fitting and the other side peened in place. I'll show some pictures of this later.

Well, instead of posting picture after picture of the fifty two wires we have to build, I thought I'd post some other Jenny stuff.

Phil and Patricia Mintari in Texas sent pictures of their Jenny. Should be flying soon!

I'm proud to say Ken Gulliford has successfully flown his Jenny model.

Ken wrote:

Test flight done today, 20 April, not much flying just a short crow-hop as the wind was really blowing. Plane is missing a few details like cowl straps, windscreens, pilots that will be added tonight and tomorrow before the initial debut. As you can readily guess, I really enjoy doing this. I broke both bamboo tip supports on taxing and landing. They were very old, dry and brittle, at this time I don't know what to use to replace them but I will think of something.
The pics were done by my model partner Peyre Pringle, his aerial shots are outstanding.

Hope you enjoy the pictures.




Blogger ben said...

taciTell me about the original finish put on Jennies. Seeing Phil's, it appears he painted his. In pieces of material I have which may be linen or cotton, it appears it was only sealed -- no color.

6:33 PM  
Blogger Brian Karli said...

Hi Ben,

Yes, you are right. Phil used modern covering materials.

Originally, the Jennies were covered with linen and sealed with a shelac like liquid. This "dope" was clear and when it dried, produced an amber and nearly translucent finish.

But today, we use dacron fabric and modern "dope" whose chief advantage is that it is non flammable. Since ultraviolet light accelerates the deterioration of cotton fabric, the modern dopes are pigmented. You give up that neat translucent finish in order to make the fabric last longer.

Good observation!


12:29 PM  

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