• 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. 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.

    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. 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.

S-2A Top Wing Inspection Cover Location


Well-Known Member
Jun 13, 2008
Reaction score
Hello, I’m almost done covering the wings on my current S-2A restoration project. A look at the old top wing fabric revealed there were no inspection holes or even rings that hadn’t been cut out. So for the S-2A owners our there can you possibly post some pics of the bottom of your top wing showing inspection hole locations? I was thinking one in front of each aileron hinge and a couple more periodically spaced out to look inside the wing and flick the drag/anti-drag wires to test tension.



Latest posts