I am almost always humbled (or humiliated, depending...) by the answers I get from the VAF community and, because my search has not returned a definitive answer, I suppose I may have done something out of sequence. Nevertheless, the need is for an answer, so here goes.
Section 6, Page 6-7:
"Rivet the E-903 and E-904 rib webs together. Rivet the E-913 counterbalance skin to the ribs beginning with the two center rivets at the counterbalance leading edge and working aft. Be sure to leave the holes that mate with E-901 open." Check.
"Rivet the spar assembly, E-906 rib and WD-605 together." Check.
"Back-rivet the skin stiffeners to the upper E-901-R skin." Check.
"Rivet the E-902 spar to the top of the skin, but do not rivet the E906 rib yet." Check.
"Rivet the stiffeners to the bottom of the E-901 skin." Check.
"Rivet the E-903/904/913 assembly to the E902 spar."
And here's where I can't seem to figure out how to get 2 of 4 470AD4-4 rivets bucked. There just isn't enough room or even an access route for the squeezer and the two rivets facing forward on the spar apparently require some sort of magic bucking bar that I do not possess. Is this something I will have to make?
Thank you all for your thoughts.
Here is the outboard end of the spar inside the skin. Top side is riveted to the spar. Bottom side is free. I have removed the counterweight assembly for ease of access.
Here I am holding the counterweight assembly loosely. You can see there the two rivets I'm concerned about will join with the tab from the rib.
A shot of the underside of the rib with one of the two rivets that will have to be bucked sticking through. The only possible access appears to be with a small bucking bar through the bearing slot in the skin and some (to me) unknown way of holding it. Another thought is to use a very long offset rivet set, accessing from the narrow gap in the front skin-to-counter balance assembly.
Section 6, Page 6-7:
"Rivet the E-903 and E-904 rib webs together. Rivet the E-913 counterbalance skin to the ribs beginning with the two center rivets at the counterbalance leading edge and working aft. Be sure to leave the holes that mate with E-901 open." Check.
"Rivet the spar assembly, E-906 rib and WD-605 together." Check.
"Back-rivet the skin stiffeners to the upper E-901-R skin." Check.
"Rivet the E-902 spar to the top of the skin, but do not rivet the E906 rib yet." Check.
"Rivet the stiffeners to the bottom of the E-901 skin." Check.
"Rivet the E-903/904/913 assembly to the E902 spar."
And here's where I can't seem to figure out how to get 2 of 4 470AD4-4 rivets bucked. There just isn't enough room or even an access route for the squeezer and the two rivets facing forward on the spar apparently require some sort of magic bucking bar that I do not possess. Is this something I will have to make?
Thank you all for your thoughts.
Here is the outboard end of the spar inside the skin. Top side is riveted to the spar. Bottom side is free. I have removed the counterweight assembly for ease of access.
Here I am holding the counterweight assembly loosely. You can see there the two rivets I'm concerned about will join with the tab from the rib.
A shot of the underside of the rib with one of the two rivets that will have to be bucked sticking through. The only possible access appears to be with a small bucking bar through the bearing slot in the skin and some (to me) unknown way of holding it. Another thought is to use a very long offset rivet set, accessing from the narrow gap in the front skin-to-counter balance assembly.