Bulkhead #3 is one of the two bulkheads that the cross beam gets connected to, thus deserving special attention. At this point I have dry fitted bulkheads 1, 2 and 3. Before glueing them in place I decide  to add as many of the extra pieces that make the beam box before bonding the bulkhead.

For many of these joints I am bonding with thickened epoxy and silicon bronze screws.

 

Here you can see the 1×2 reinforcements in place and the 12mm doubler that will help in setting the deck

Next you can see 12mm knees that will hold the beam bolts in place

bonding every thing together

 

I also added the first brace for the beam box at this time.

Finally after two coats of epoxy to seal everything up the bulkhead is ready to install.

To install the bulkhead and keep a good bead of epoxy going, I found it helpful to spread the  sides apart before installing. Unfortunately you can only use this trick moving aft as we go on.

Clean with water and a scrubbing pad to prep the surfaces one last time, You can tell above how much dust still needed to be removed. Then I clear coated the mating surfaces and added a nice bead of thickened epoxy. Here we don’t care how much oozes out since it will be used to supply the extra epoxy for the fillets. Cargo straps tighten things up.