• 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.



Horizontal Stab Bracing Mod

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

TommyJ

Well-Known Member
Joined
Jan 11, 2008
Messages
132
Reaction score
33
Here is a mod I did to the horizontal stabilizer:


20110716_125129_DSC01216.JPG







Simply a couple of welded tabs, connecting rod, and two clevises. It was pointed out to me by a good friend on the forum that because of the anchor locations for the tailfeather flying wires, they all pull backwards on the horizontal stabilizer, which could cause it to lozenge.

While this in itself is no risk, it could cause a bind in the elevator, pulling the two halves such that they would no longer be coaxial. I don't know how much stress this could put on the horns as they flex out of plane, but for my money I would prefer to negate the issue altogether.

I dunno. Maybe I'm being too anal and esoteric, but this is a quick, light way to ensure that the horizontal stabs keep their shape even under stress from the flying wires.

Comments?


 

Latest posts

Back
Top