Main spar rivet size

[ddeford]

I attempted to build my left spar today (the right one went fine) and noticed that Sonex misplaced two of the solid rivets on my left spar. The open holes are needed to install my tie down bracket, but they left three open on the TOP of the spar rather than on the BOTTOM, where the tie down bracket is attached.

https://photos.app.goo.gl/KTt6En8nqFrHXCM3A

I'm very clearly going to need to drill out the misplaced ones and install new ones in the correct places.

Does anyone know what rivets I need to do this? I'm pretty sure they're 3/16" AN470A's or AN470AD's. Anyone know which? And what length?

[Area 51%]

I may be wrong, but I assume the B spars are nearly identical to the Legacy units.
On my legacy print it shows AN470AD5-6 rivets on either side of the stiffener and an AN470AD5-8 that goes through both the stiffener and cap.
None of that means anything if Sonex also drilled the bolt holes which will be a 3/16 hole. Diameter notwithstanding, the rivet lengths should still be the same.

[ddeford]

I may be wrong, but I assume the B spars are nearly identical to the Legacy units.
On my legacy print it shows AN470AD5-6 rivets on either side of the stiffener and an AN470AD5-8 that goes through both the stiffener and cap.
None of that means anything if Sonex also drilled the bolt holes which will be a 3/16 hole. Diameter notwithstanding, the rivet lengths should still be the same.

First of all, Area 51% is an awesome handle.

The holes are, indeed, drilled to 3/16". It'll be interesting to see what Sonex says about it. Thanks for the info.

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