• 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

Bending 4130 fin ribs

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

VH-FKS

Well-Known Member
Supporting Member
*
Joined
Jul 13, 2012
Messages
493
Reaction score
183
I’m currently working on the tail feathers and have bought the horizontal ribs from steen however I need to make the vertical ribs for my own tail shape. I was wondering besides just using a pan rake how everyone actually bends these as the channel is very narrow and deep and most brakes can’t fold it. I have tried numerous sheet metal and fab shops and no one here even wants to touch 4130 and the deep channel as it’s too much work. I am looking at buying a small brake but it definitely can’t fold to the full 90 and may not even have teeth thin enough to make it into the 3/8 end of the rib. Anyone’s input on how they did theirs and if there’s good ways or bad ways would be appareciated as I think a couple of builders might find this helpful to know.
Cheers,
Sam
 

Latest posts

Back
Top