Having set up the plenum angles yesterday to rivet the nutplates, I completed that task first. After riveting the nutplates I attached the angles with #6 screws to the aft baffles and the #3 and #4 side baffles. I clecoed the fiberglass plenum to the aft angles and then match drilled the plenum to the side baffle angles. I then removed the plenum and the angles to deburr all the angles before riveting.
I riveted the fiberglass to the angles working on the workbench using the pneumatic squeezer. After finishing the riveting with -4 universal rivets, I reattached the plenum to the baffles hoping everything would line up. It did, thank goodness!!
Tomorrow I'll finish match drilling the rest of the angles to the #1 and #2 side baffles. If I have enough time I'll rivet them to the fiberglass and reattach the plenum to check the fit at the inlets with the upper cowling on. Angles on the forward inlet baffles and the forward side baffles will hold the duct just above the upper cowling inlet lip. This should give enough clearance during startup and shutdown engine movement.
Using the pneumatic squeezer to rivet the fiberglass to the angles.
Plenum attached to the aft baffles, and the #3 and #4 side baffles.
