Skybolt Lower Wing Attach Bolt Size

[dougco]

I am finally close to covering, but before I disassemble the airplane to start that process, I am verifying that everything is correct. Here is my question to you: In the plans the aft attach calls for 1/4” and the forward attach is 5/16”. In the Skybolt newsletters there is a comment that states "When the lower wing assembly is fitted to the fuselage the attach holes will be drilled and reamed for 7/16” bolts”. What is the correct size?

 

[cwilliamrose]

 

[Beej]

 

[EAABipe40FF]

 

[ndlakesdreamer]

 

[dougco]