Spar Strut fitting bolt hole sizes

[shipljl]

The rear spar strut fittings on my 41 have two hole sizes and I'm wondering if this is how it's supposed to be. I've attached a photo of the fitting. The two holes that also go through the compression rib are 1/4 inch as I expected (nearest the large lightening hole), but the other two holes are 5/16 (opposite sides horizontally from the lightening hole). Does anyone know if they were all supposed to be 1/4 inch? Did someone drill two of the holes oversize?

The other wing is identical with two 1/4 and two 5/16 bolts.

The front spar has all 1/4 inch holes. That's why I'm suspicious.

thanks,

John

[Ragwing nut]

Re: Spar Strut fitting bolt hole sizes

it is correct

[ajfriz]

Re: Spar Strut fitting bolt hole sizes

I'm just over in Logan if you would like to take a look at my pre-war wings and strut fittings.

[shipljl]

Re: Spar Strut fitting bolt hole sizes

I would love to see your project. Can you give me contact info and where you live in Logan? You can email me at [email protected]