I used the pnuematic squeezer on all the rivets. First thing I riveted after the rib to flange was the one lone rivet that goes through the two angles. I don't have a photo, but you know which one that is. Then, I clecoed the whole thing together and riveted the horizontal rib to the plate and front bottom piece. I held the assembly in my vice and repositioned it to clearly see what I was riveting. I had a phenominum of the rib flange bending up when I squeezed it. So I put flush sets on both posts of the squeezer and squeezed it back down.
I squeezed 5 1/8 rivets on the two ends. I did not rivet the #40 rivets on the ends. Nor did I rivet the vertical rib at all. Per drawing and plan the vertical rib does not get rivetted now nor does its angle get rivetted on to it at this time.
