On drawing 11, between grid F/G-1, on the shown back side of the main spar at the root, there are 3 K1000-3 platenuts depicted, but I can't find where the installation is directed in the instructions. I would imagine they should go on prior to riveting the ribs in place. Additionally, the two rivets closest to the doubler (top most and bottom most rivet in drawing 11 are really close to the doubler such that I can't get a rivet gun in place.
I'm guessing the installation method is to use a bucking bar on both sides of the rivet with the gun pounding on a bucking bar. Any other suggestions?
Also would like to know what the platenuts hold in place.
Thanks,
PatD
I'm guessing the installation method is to use a bucking bar on both sides of the rivet with the gun pounding on a bucking bar. Any other suggestions?
Also would like to know what the platenuts hold in place.
Thanks,
PatD