• 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 Delta

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

pelican

Well-Known Member
Joined
Dec 10, 2006
Messages
92
Reaction score
0


When I built the attach fittings for the Center Section. (the fittings that are welded to the fuselage at Station 0, top), I see a callout of .315 for the hole size with an edge margin of .437
This gives about 1.5 x Dia of fastener for edge margin. From what I've seen in the aircraft industry, E.M. should be more like 2 time Dia minimum. this would be an E.M. of .63 instead of .437


Anybody have any thoughts?
 

Latest posts

Back
Top