• Become a Subscribing Member today!

    J3-Cub.com is the largest community of J3-Cub pilots, owners and enthusiasts. With over 1000 active members, we have fostered a vibrant community and extensive knowledge base.

    Access to the J3-Cub.com community is by subscription only. Membership is only $49.99/year or $6.99/month to gain access to this community and extensive unmatched library of knowledge.

    Why become a Subscribing Member?

    • J3-Cub.com hosts a library of over 13 years of technical discussions, J3 data, tutorials, plane builds, guides, technical manuals and more.
    • J3-Cub.com also hosts an extensive library of J3-Cub photos.
    • You will also receive two J3-Cub decals!

    Become a Subscribing Member and access J3-Cub.com in full!

    Subscribe Now

Wooden Cub Wing Ribs

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Jim Dickinson

Well-Known Member
Supporting Member
Joined
Aug 5, 2020
Messages
57
Reaction score
14
I have to say I am stoked right now. After several weeks time, off and on, about three hours ago, I pulled my first, full size, wood truss, Cuby type, wing rib out of the jig. I've still have to hole saw the two inch lightening hole in the plywood front area and sand off the gusset protrusions. ---It weighs the same as an original 1946 J3 {shorter} aileron, aluminum truss rib! I made this one with spruce cap strips table sawed out of a spruce 2X4, yes, they meet the appropriate aircraft wood spec. The front plywood piece is made of Fir ACX plywood and the gussets are 1/16 Birch Aircraft plywood, the glue is West Systems 105 epoxy. This is a test piece, I am very satisfied with it, even in its raw state it's already lighter than the same size, original Cub full rib! I will lighten it further by using Marine BS1088 Grade Okume plywood, as used by Unlimited Hydroplane restorers, in both the front piece and the gussets. It took me a long time to make the jig, gluing the rib up was easy. I'm going to further modify the jig, yea, more time, when I'm done I think I can turn out two ribs a day at room temperature, for proper glue drying time. For me, this will be the least expensive and the lightest option of wing ribs for my "Experimental" J2 revival. Yes!!!!
 

Latest posts

Back
Top