• 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.

Skybolt rudder cable attachment issue


Well-Known Member
Sep 15, 2006
Reaction score
Per plans, the rudder cables are attached to a small plate welded to 7/8" tube which is in turn welded to the rudder pedals. The hardware called out for this attachment is an AN115-46 shackle. The rudder cable is called out as 1/8" 7X19 wire. An AN115-21 shackle is actually the correct size for 1/8" cable according to ACS. The breaking strength numbers match as well.
I purchased an AN-115-21 shackle to check the clearance at the plate. The center to center hole measurement on the plate as per plans is 1 1/2". Unfortunately the shackle bumps right up to the 7/8" tube allowing no room at all for the weld in this area. Ours are not welded on yet so we will probably remake the plates with 1 3/4" hole centers. Iwould betif your rudder pedals are already built you could go to another type of cable attachment to get some clearance.
I can only hope anyone that hasn't made these yet checks this out first.


Latest posts