Plywood Ribs

Become a Subscribing Member today!

The Biplane Forum is a large global active community of biplane builders, owners and pilots. From Pitts to Skybolts, to older barnstormers, all types are welcome.

The Biplane Forum is a private community. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched source of information not found anywhere else on the web.

Why become a Subscribing Member?

In addition to our active community, our content boasts exhaustive technical information which is often sought after for projects and maintenance. This information has accumulated over the 12+ years the forum has been in existence.

We are also a great resource for non biplane users, since many GA aircraft are built the same way (fabric and tube construction).

Annual membership also comes with two BiplaneForum.com decals.

Become a Subscribing Member and access the Biplane Forum in full!

Subscribe Now

StinsonPilot

Well-Known Member

Lifetime Supporter

Apr 18, 2024

I'm starting a project and considering plywood ribs. I have access to a CNC Laser, so I can get ribs cut in nothing flat.
What is the proper way to build ply ribs?
What I've found so far is triangular cutouts and capstrips.

Since this is a predominately wood oriented site, at least for wings, I'm asking the knowledge base here.

My main reason for ply ribs is expediency. Get er' done!

Thanks...