• 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.



Chris's Model 12 Adventure...

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

Cobradriver

Well-Known Member
Lifetime Supporter
Joined
May 25, 2007
Messages
184
Reaction score
257
Location
Port Charlotte, FL Huntsville, AL (3M5)
Well...I made it two weeks into the build without a question and now I'm stuck. I have an idea of how to proceed but I figure I'd post up and see if anyone had this problem...

PXL_20210705_164202250.jpg


Lower wings...top and bottom doubler holes cause plate to not be centered. I could move plate over and redrill or order a piece of ply from AS and fab a new piece.

Also the rib seems to kinda cover the bolts. Yes, the measurements are within a 1/16. Do I move the compression rib at station 76 1/4 just far enough outboard to clear the bolts and plate ? I don't think hacking the rib to fit is a good idea....

Third...
PXL_20210705_164243093.jpg


Just make a new ply doubler for the rear spar cabane mount ?

I have no idea why this fits like it does....

As an fyi...I'm a retired 30 year FedEx truck mechanic. I threw in the towel 2 years ago at 53. I'm single with zero commitments so I can work as much as I like on the Pitts. I built all the ribs in one week.

šŸ˜

Thanks !!!

Chris
 

Latest posts

Back
Top